Hooked on Iowa

Overview & ID — Esox masquinongy: very large, elongated, dark bars/spots on light background (opposite pike), broad duck-bill snout, scaleless lower cheeks/gill covers. Tiger muskie (pike × muskie) shows bold vertical barring.

Iowa presence & top waters — Stocked put-grow-trophy fishery. DNR waters: Big Spirit, Little Spirit, E & W Okoboji, Clear Lake, Brushy Creek, Black Hawk, Big Creek, Three Mile, Lake MacBride, Hawthorn, Pleasant Creek, Lost Grove, Lake Sugema, Deep Lake, Upper/Lower Gar, Minnewashta; plus Little Sioux, Cedar, Iowa, Shell Rock, Des Moines rivers. Spirit Lake (record water) & West Okoboji premier trophy destinations; Brushy Creek, Clear Lake, Pleasant Creek strong.

Average & trophy size — Most 30–42 in. Females ~40 in by ~age 5, regularly 50+ in in best waters. Trophy 45–50 in; giant 50+ in / 30+ lb. Iowa produced a 50-lb-class fish.

Spawn — Late April–May, ~48–56°F (after/warmer than pike). Broadcast over shallow vegetated flats/mucky bays; no care; often poor natural recruitment → stocking-dependent.

Best time of day/night — Warm-season fishery. Prime low-light dawn/dusk and, in summer, into night (topwater). Overcast/windy days extend action. Fall (Sept–Nov) = trophy season.

Lunar/solunar — Among the most moon-focused anglers: key on solunar majors and days around full & new moons; target moonrise/moonset for big-fish movements. Use to pick best hours within a good weather window.

Weather & barometric — Falling barometer ahead of a front = classic feeding trigger (many trophies come just before a storm). Stable warm fronts & overcast/breezy keep fish shallow/active. Sharp post-front high pressure (bluebird) notoriously tough.

Iowa legal (2026) — Continuous on most waters; statewide 40-in minimum — all muskie/hybrid under 40 in released immediately; daily 1 / possession 1. Special: Iowa Great Lakes (Big Spirit, E & W Okoboji) closed muskie season ~Dec 1–May 20 (open ~May 21–Nov 30). Effectively a trophy/C&R fishery.

Records — Iowa: 50.38 lb (DNR lists 50 lb 6 oz), Spirit Lake, Aug 21 2000, Kevin Cardwell. Iowa tiger muskie: 27.13 lb, West Okoboji, Aug 1989, Shannon Green. US = world (top muskie records are US fish). IGFA world all-tackle: 67 lb 8 oz, Cal Johnson, Lac Courte Oreilles (Hayward), WI, July 24 1949. DISPUTED: Freshwater Fishing Hall of Fame recognizes Louie Spray's 69 lb 11 oz, Chippewa Flowage, WI, Oct 20 1949 (also WI state record); IGFA rejects it (fish was shot). Both '49 WI fish challenged. IGFA All-Tackle Length record 54.33 in, Art Weston, Oct 2025. Neighbors: WI 69-11 (Spray); MN ~54 lb (Winnibigoshish, 1957 — verify).

Record baits — 1949 WI giants taken casting/trolling large wooden plugs & sucker minnows (exact terminal baits part of the dispute — uncertain). Iowa Spirit Lake record lure undocumented.

Current tactics (Iowa) — Big-water casting & trolling. Summer/early fall: large bucktails (double #10 blades), spinnerbaits burned along weed edges; topwater (walk-the-dog, prop) dawn/dusk/night. West Okoboji specialists throw glide baits (Hellhound-style) & soft rubber (Phantom Soft Tail, Bull Dawg-style). Trolling large-lipped cranks (10-in Jake-style, perch patterns) 10–60 ft back at 4–8 mph over basins/structure. Fall: slower speed, bigger baits (rubber, gliders) for cold-water giants. ALWAYS finish with a boat-side figure-8. Best waters now: Spirit, West Okoboji, Clear Lake, Brushy Creek, Pleasant Creek.

Sources — iowadnr.gov state-record-fish; iowadnr.gov muskie; IAC Ch. 81; bestfishinginamerica.com; wired2fish.com; oneoutdoors.org IGFA

Flags (Group 1)

• Images: walleye & pike filenames high-confidence; sauger, saugeye, muskie should be visually verified before publishing.
• Saugeye world record: no authoritative IGFA all-tackle record; Ohio 14-4 presented as best-documented giant.
• Walleye (Harper) & muskie (Johnson vs. Spray) world records are historically disputed — flagged, not asserted clean.
• Okoboji walleye slot: used 2026 DNR figure (19–25 in); some third-party guides still show older 17–22 in. Verify at iowadnr.gov.

Overview & ID — Esox lucius: long torpedo body, olive-green with rows of light bean-shaped spots, duck-bill snout, single rear-set dorsal. Light markings on dark background (opposite muskie), fully scaled cheeks.

Iowa presence & top waters — Upper two-thirds; natural lakes & large interior streams. Iowa Great Lakes (West Okoboji — state-record water — Big Spirit); Des Moines, Wapsipinicon, Cedar, Iowa rivers; Mississippi above Clinton. Relates to weed lines in 3–6 ft.

Average & trophy size — 20–30 in / 2–7 lb. Trophy ~36–40 in / 10+ lb; low-teens+ are rare Iowa giants (southern edge of premium pike range).

Spawn — Earliest spring spawner: right after ice-out, March–April, ~40–52°F; adults into flooded shallow marshes/vegetated bays, broadcasting eggs over dead vegetation; no care.

Best time of day/night — Primarily daytime cool-water feeder. Best mid-morning–afternoon in cold water; low-light peaks in warmer months. Most active spring & fall; summer heat pushes big fish deeper. Solid tip-up ice target.

Lunar/solunar — Opportunistic all-day feeder; solunar matters less. Majors and full-moon phases can concentrate feeding, but daylight & prey availability dominate.

Weather & barometric — Stable-to-falling pressure ahead of fronts = most aggressive; overcast/breezy pre-front pushes big pike shallow to weed edges. Post-front high pressure slows them to deeper weed lines/breaks. Cooler water = more active.

Iowa legal (2026) — Continuous; no statewide length limit. Statewide daily 3 / possession 6. Exception: Big Sioux River 6/12. No protected slot statewide.

Records — Iowa: 25.31 lb, 45 in, West Okoboji, Feb 5 1977, Allen Forsberg. US/North American: 46 lb 2 oz, 52.5 in, Peter Dubuc, Great Sacandaga Lake, NY, Sept 15 1940. IGFA world: 55 lb 1 oz, Lothar Louis, Lake of Greffern, Germany, Oct 16 1986 (world ≠ US — giants come from Europe). Neighbors: MN ~45 lb 12 oz (Basswood, 1929); WI ~38 lb (1952).

Record baits — US record (Dubuc): trolling a 6-in wooden flap-tail plug (two trebles), 12-lb line, bronze leader. Iowa record (Feb ice catch) bait undocumented; winter pike typically live baitfish under tip-ups.

Current tactics — Cast large flashy hardware along/outside weed lines: gaudy spoons (DNR notes red/white/silver Daredevle), inline spinners/bucktails, spinnerbaits. Big soft swimbaits & jerkbaits (Suick, Bull Dawg-style) for larger fish. Live-bait tip-up rigs w/ large shiners or suckers — deadly through ice & early spring. ALWAYS use wire/heavy fluoro/titanium leader. Spring (post-ice weedy bays) & fall (weed edges/points) are top windows.

Sources — iowadnr.gov state-record-fish; iowadnr.gov northern-pike; IAC Ch. 81; visitsacandaga.com; oneoutdoors.org IGFA; en.wikipedia.org/wiki/Northern_pike

Overview & ID — Sander canadensis: brassy-brown with dark blotches/saddles, distinct rows of black spots on the spiny dorsal, NO white tail tip (key vs. walleye).

Iowa presence & top waters — Big-river fish, not lakes. Missouri River (Sioux City–Little Sioux), Mississippi tailwaters (Pools 9–19), lower Big Sioux. Often with walleye/saugeye in the same seams.

Average & trophy size — 12–15 in / 1–2 lb. Trophy ~18 in; 3–4 lb+ is a very good Iowa sauger.

Spawn — March–April over gravel/rocky riffles; trigger ~40–46°F, slightly earlier and more current-oriented than walleye; runs congregate below dams.

Best time of day/night — Low-light and turbid-water feeder; strong dawn/dusk and daytime bite in stained water. Peak = cold-water window, late fall–early spring, in tailwaters.

Lunar/solunar — Less studied; river current/flow/temperature dominate. Solunar majors help but discharge & clarity are primary.

Weather & barometric — Buffered from pressure but sensitive to flow: rising/stable flows + moderate turbidity after rain concentrate them below dams; flood scatters them. Cold stable late-winter = classic tailwater run.

Iowa legal (2026) — Continuous; no statewide minimum. Managed in walleye/saugeye aggregate: statewide 6/12; Missouri & Big Sioux 4/8; Mississippi 6/12. No sauger-specific length limit.

Records — Iowa: 6.50 lb (6 lb 8 oz), Missouri River, Oct 1976, Mrs. W. Buser. US = world record (same fish). IGFA world: 8 lb 12 oz, Mike Fischer, Lake Sakakawea, ND, Oct 6 1971. Neighbors: WI 6-6.7 (Mississippi, 2009); MN 6-2.75 (Mississippi, 1988); MO 5-1 (Osage R., 1994).

Record baits — World record: nightcrawler (Garcia rod, Garcia 5000 reel, Cortland line). Iowa bait undocumented.

Current tactics — Vertical jigging is king: 1/4–1/2 oz jigs (heavy to hold current) + minnow or soft plastic (Lunker City Fin-S, paddletails) in seams/eddies below dams. Three-way rigs w/ minnow; blade baits (Heddon Sonar/VMC) & jigging spoons in cold water. Fish tight to bottom. Prime Nov–March, Missouri & Mississippi.

Sources — iowadnr.gov state-record-fish; IAC Ch. 81; hookedinfishing.com; tacklevillage.com; en.wikipedia.org/wiki/Sauger

Overview & ID — Fertile hybrid, intermediate traits: sauger-like dark saddles PLUS walleye-like dorsal spotting and often a faint white tail tip. Hard to ID by eye.

Iowa presence & top waters — Big-river overlap zones and DNR stocking sites: Coralville Reservoir (heavily stocked), Iowa River (Coralville–River Junction; Marshalltown–Coralville), Des Moines River (Saylorville–Red Rock), Big Sioux. Thrives in warmer, more turbid, eutrophic water than pure walleye.

Average & trophy size — 14–20 in / 1–3 lb; fast growth in fertile water. Trophy ~26–28 in / 8+ lb. Iowa record ~12 lb / 29.5 in.

Spawn — Largely non-self-sustaining; attempt spring spawning (~42–50°F) over gravel/riprap; success low, so DNR fry-stocks.

Best time of day/night — Low-light like both parents; dawn/dusk/night; strong daytime bite in stained water; fall (Oct–Dec) is a standout.

Lunar/solunar — Same framework as walleye/sauger; flow, clarity, temp dominate; reservoir (Coralville) full-moon night bites can be strong.

Weather & barometric — Pre-front falling pressure = feeding; post-front slows them; tolerate dingy water well — target stained/wind-blown/post-rain stretches.

Iowa legal (2026) — Continuous; no statewide minimum. Walleye/sauger/saugeye aggregate: statewide 6/12; Missouri & Big Sioux 4/8; Mississippi 6/12.

Records — Iowa: 12.25 lb, 29.50 in, Des Moines River (Saylorville–Red Rock), Mar 1 2000, Don Ostergaard. US/largest documented: Ohio record 14 lb 4 oz, Roger Sizemore, Antrim Lake, Nov 24 2004. IGFA world: undetermined — no widely published all-tackle saugeye record confirmed; Ohio 14-4 is best-documented giant (flagged unresolved). WV record 8.73 lb (2006).

Record baits — Iowa (March, DSM River tailwater) consistent with cold-water jigging but undocumented; Ohio 14-4 undocumented.

Current tactics — Effectively identical to walleye/sauger. Tailwater/reservoir jigging 1/8–3/8 oz jig + minnow or paddletail (Coralville, Iowa River dams); crawler harnesses & cranks (Flicker Shad, Husky Jerk) over flats/points in summer; blade baits & spoons in cold water. Because they favor stained water, they bite when pure walleye shut off. Fall below dams is prime.

Sources — iowadnr.gov state-record-fish; programs.iowadnr.gov FishIowa SXW; IAC Ch. 81; en.wikipedia.org/wiki/Saugeye; a-z-animals.com (OH record); wvdnr.gov

Overview & ID — Sander vitreus: olive-gold flanks with darker saddles, a white-tipped lower tail lobe, and glassy reflective eyes (tapetum lucidum) for superb low-light vision. Separated from sauger by the white tail tip and lack of distinct rows of dorsal-fin spots.

Iowa presence & top waters — Lakes and rivers, statewide but strongest upper two-thirds. Natural lakes: Big Spirit, West & East Okoboji, Clear Lake, Storm Lake. Reservoirs: Rathbun (~11,000 ac), Big Creek, Brushy Creek. Rivers: Mississippi pools/tailwaters (Pools 9–19, e.g. Guttenberg/Pool 11), Des Moines River (Saylorville & Red Rock tailwaters), Cedar, Iowa, Missouri.

Average & trophy size — Keepers 14–20 in (1–3 lb). Trophy ~27–28 in / 8+ lb; 10 lb+ exceptional. Max ~42 in / ~29 lb.

Spawn — Late March–April; trigger ~42–50°F. Broadcast spawners over rock/gravel/rubble shorelines, riprap, reefs, river tailwaters at night; no parental care. Drives the early-May Iowa Great Lakes opener.

Best time of day/night — Low-light specialists: dawn, dusk, after dark, especially clear lakes (Okoboji, Spirit, Clear Lake night bite). Spring afternoons as shallows warm; summer night & deep midday structure; fall big-fish low-light windows; winter dawn/dusk through ice.

Lunar/solunar — Solunar majors weighted heavily; dawn/dusk majors overlapping moonrise/set are prime. Trophy hunters favor days around the full moon (night feeding) and new moon (daytime). Secondary to weather/light.

Weather & barometric — Classic pre-front (falling barometer, building wind, overcast) = best window. Post-front bluebird high pressure shuts them down (deeper, tighter, finesse). Wind is a friend — "walleye chop" and wind-blown points concentrate fish; clouds extend the bite.

Iowa legal (2026) — Continuous statewide season inland. Statewide: no minimum length; daily 5, possession 10. Iowa Great Lakes (Big Spirit, E & W Okoboji, Upper/Lower Gar, Minnewashta): daily 3 / possession 6, protected slot — 19–25 in released, only one over 25 in/day; closes Feb 15, reopens first Saturday in May (May 2, 2026). Storm, Clear, Big Creek: reduced 3/6 bag. Mississippi aggregate (walleye/sauger/saugeye) 6/12; Missouri & Big Sioux aggregate 4/8. (Some older guides show a 17–22 in Okoboji slot; 2026 DNR figure 19–25 in is authoritative — verify at iowadnr.gov.)

Records — Iowa: 14.50 lb, Des Moines River (Saylorville–Red Rock), Sept 1986, Gloria Eoriatti. US/largest documented = the world record fish. IGFA world all-tackle: 25 lb 0 oz, Mabry Harper, Old Hickory Lake, TN, 1960 (SAME as US record; disputed — disqualified 1996, reinstated 2019; treat as historically contested). Neighbors: MN ~17 lb 8 oz (Seagull R., 1979); MO ~21 lb 1 oz (Bull Shoals, 1988); WI ~18 lb (1933).

Record baits — Harper's exact lure poorly documented (accounts suggest live minnow bottom-fishing — uncertain). Iowa record bait undocumented.

Current tactics — Spring/post-spawn: 1/8–1/4 oz jigs + fathead minnow or leech in tailwaters/rocky shallows; B-Fish-N Pulse-R paddletails. Summer/fall: troll crawler/spinner harnesses (Northland Float'n Harness) behind bottom bouncers; Rapala Down Deep Husky Jerk, Berkley Flicker Shad over breaklines. Clear-lake finesse: 1/16–1/8 oz jig + leech or slip-bobber leech on weed edges; strong night bite. Rivers: vertical jig w/ minnows or three-way rigs in current seams below dams; blade baits & jigging spoons in cold water.

Sources — iowadnr.gov state-record-fish; iowadnr.gov 2026 Great Lakes walleye release; IAC Ch. 81 (01-07-2026); bestfishinginamerica.com; iowasportsman.com; fieldandstream.com; wired2fish.com; en.wikipedia.org/wiki/Walleye

Overview & ID — Micropterus salmoides: green-bronze, jaw extends behind the eye, dark blotchy lateral stripe, deeply notched dorsal.

Iowa presence & top waters — Statewide, primarily lakes/ponds; river backwaters/oxbows (Mississippi Pools 9–19). Top: Big Creek, Lake Sugema, Three Mile, Ahquabi, MacBride, Wapello, Twelve Mile Creek, Brushy Creek, Pleasant Creek, Lost Grove, Viking, Miami, Icaria, West Okoboji/Spirit weedlines; Mississippi backwaters; thousands of farm ponds (quietly produce the biggest bass).

Average & trophy size — Keepers 12–16 in (1–2.5 lb); good fish 17–18 in (~3 lb). Trophy 18 in / 4 lb; 5–6 lb exceptional; 7 lb+ rare. Master Angler min 20 in.

Spawn — Late April–June, peak May; trigger ~60–68°F (males shallow from upper 50s). Fan nests 1.5–3 ft over gravel/rock/firm mud in protected coves, pond dams, north shorelines; males guard eggs/fry.

Best time of day/night — Spring: mid-morning–afternoon. Summer: dawn–~9 a.m. & last two hours; night bite (black spinnerbaits, buzzbaits, 10" worms) July–Aug on clear/pressured lakes. Fall: late morning–afternoon on shad flats. Winter/ice: midday warm afternoons.

Lunar/solunar — Majors/minors sharpen windows; full/new moons get most credence for spawn waves. Tiebreaker, not driver.

Weather & barometric — Pre-front (falling pressure/clouds/wind) = best; fish fast (spinnerbaits, chatterbaits, cranks, topwater). Post-front bluebird high pressure = toughest; downsize/slow (Ned rig, drop shot, jig in cover). Wind stacks bait on windblown banks/points. Overcast → moving baits all day; bright sun → pitch/flip shade.

Iowa legal (2026) — Continuous, open year-round (incl. spawn). Daily 3 black bass aggregate (LM+SM+spotted) / possession 6; boundary rivers (Miss., Mo., Big Sioux) 5/10; IA–MN border lakes 3/3. Length limits by water: all public lakes 15" min default; interior streams/river impoundments/Missouri R. 12"; Mississippi R. 14". Special: 18" min on a listed set (Ada Hayden, Ahquabi, Big Creek, Casey, Cold Springs, Green Valley, Hendricks, Krumm, Little Wall, Lost Grove, Mill Creek, Pleasant Creek, Smith, South Prairie); protected slots — Hawthorn (12–16" released), Sugema (12–18" released); C&R-only Brown Lake (Jackson Co.) & Wapello Lake (Davis Co.); mandatory release on stretches of Cedar, Maquoketa, Middle Raccoon, Upper Iowa rivers. Verify current lake listing.

Records — Iowa: 10 lb 12 oz (10.75 lb), 23.5", Patricia Zaerr, Lake Fisher (Davis Co.), May 1 1984 (bait "Other"; unbroken 42 yrs). US: 22 lb 4 oz, George Perry, Montgomery Lake, GA, June 2 1932. IGFA world = TIE: Perry & Manabu Kurita 22 lb 4.97 oz, Lake Biwa, Japan, July 2 2009 (US record = world record = Perry's fish, co-held w/ Kurita; Iowa's is separate/smaller). Neighbors: MO 13-14 (Bull Shoals, 1961); WI 11-3 (Lake Ripley, 1940); MN 8-15 (Lake Auburn, 2005).

Record baits — Perry: Creek Chub Fintail Shiner plug to a cypress stump. Kurita: live bluegill by a bridge piling, 25-lb line. Zaerr: undocumented. Bushong (MO): black deep-diving lure. Raveling (MN): white/chartreuse Blue Fox buzzbait.

Current tactics — Year-round workhorses: 5" Yamamoto Senko (wacky/T-rig), Ned rig (Z-Man Finesse TRD 1/10 oz) for pressured/post-front, 3/8 oz jig+craw around timber/rock. Spring: lipless cranks (Rat-L-Trap/Red Eye Shad), 1/2 oz ChatterBait+Zako, jerkbaits (Megabass Vision 110, Yo-Zuri 110), jig/craw on channel swings; bed-fish May w/ T-rigged creatures. Summer (now): spinnerbaits on weed edges, soft plastics 4–6 ft on weedlines/timber, frogs (SPRO Bronzeye 65) over pads, buzzbaits/Whopper Ploppers at dawn, 10" T-rig worms & deep cranks (Strike King 6XD) on main-lake points/brush 10–15 ft, drop shot deeper; clear lakes (Okoboji) FFS jighead minnows for suspended fish. Fall: squarebills/spinnerbaits on shad flats, jig-craw on riprap. Ponds: weightless Senkos, small spinnerbaits, frogs.

Sources — programs.iowadnr.gov FishIowa LMB; masterangler 4728; iowadnr.gov regulations; eregulations.com; IAC Ch. 81; bassmaster.com (Perry); majorleaguefishing.com (Kurita); wired2fish.com; WI DNR record list; govdelivery IA DNR reports

Overview & ID — Micropterus dolomieu ("bronzeback"): bronze-brown, jaw not past the eye, vertical dark bars, red-tinged eyes; pound-for-pound Iowa's hardest fighter.

Iowa presence & top waters — Fundamentally a river state (clearer/rockier NE two-thirds) + two NW natural-lake exceptions. Rivers: Upper Iowa (Decorah — signature float), Cedar, Maquoketa (below Lake Delhi), Turkey, Wapsipinicon, Shell Rock, Volga, Middle Raccoon below Panorama. Border: Mississippi Pools 9, 10, upper 11 (wing dams, riprap, closing dams); Missouri riprap near Sioux City. Lakes: West Okoboji (gin-clear, state-record water) & Big Spirit — best trophy waters.

Average & trophy size — Rivers 10–14 in / 0.5–1.5 lb; lakes larger. Quality 15–17 in (2–3 lb). Trophy 18 in / 3–4 lb (rivers); 20 in / 5 lb = lifetime fish (Okoboji, Spirit, Mississippi). Master Angler min 18".

Spawn — Late April–early June, peak May (>60°F). Males nest ~55–60°F; peak 60–65°F. Sweep 14–25" saucer nests on gravel/rock 2–10 ft near a boulder/log, out of current in rivers; guard eggs/fry aggressively.

Best time of day/night — Spring: midday–afternoon. Summer: dawn/dusk topwater; night on clear lakes (West Okoboji), esp. under a bright moon, produces biggest fish. Fall: mid-morning–afternoon (55–65°F binge). Winter: warmest hours (~11–3) in wintering holes.

Lunar/solunar — ~90% sight feeders, so moonlight matters more than most species: near full moon best summer bite runs evening–midnight, fish shaded side of cover; waning → dawn bite; new moon → daytime best. Weather/temp/current still rank above moon phase.

Weather & barometric — Pre-front (falling pressure, warm/humid, S wind) = best; cover water. Post-front high/bluebird = classic shutdown; tighten to bottom/boulders, deep, slow (Ned, tube, drop shot). "Smallmouth chop" pushes bait onto windward rocky points/wing dams. Rivers: modest rise w/ slight stain fires the bite; big muddy rise → slack-water seams/eddies.

Iowa legal (2026) — Continuous. 3 daily / 6 possession (black bass combined); boundary rivers 5/10. Length: 12" interior streams/impoundments/Missouri R.; 14" Mississippi; 15" lakes (some 18"). Special C&R stream segments (all black bass released): Cedar R. (Mitchell Co., A19–T26 bridges), Maquoketa (below Lake Delhi to first gravel-road bridge), Middle Raccoon (below Panorama to Redfield dam), Upper Iowa (Decorah Fifth St. bridge to upper dam). Note: former 14–20" smallmouth slot no longer in current regs.

Records — Iowa: 7 lb 12 oz, 22.75", West Okoboji, Sept 1 1990, Rick Gray (bait undocumented). US & IGFA world = SAME FISH: 11 lb 15 oz, Dale Hollow (KY waters), July 9 1955, David Hayes (delisted 1996 over falsified affidavit, reinstated by IGFA 2005; none over 10 lb certified since). Neighbors: WI 9-1 (1950, questionable); MN 8-0 (1948); MO 7-2 (Stockton, 1994) — all exceed Iowa's.

Record baits — Hayes: trolling a pearl Bomber 600 crankbait, ~300 ft back, 20-lb line, mid-morning. Iowa (Gray): undocumented.

Current tactics — Ned rig = #1 Iowa river bait: 2.75" Z-Man Finesse TRD (green pumpkin, "The Deal," PB&J) on 1/16–1/10 oz. Tubes: 2.5–3.5" (Strike King Coffee Tube) on 1/8 oz. Jerkbaits (spring/fall): Megabass Vision 110, Rapala PXR Mavrik 110 w/ long pauses in 45–60°F. Swimbaits: 2.8–3.8" Keitech Swing Impact FAT on 1/8–1/4 oz along wing dams/riprap/seams. Drop shot & hair jigs for clear-lake fish. Topwater (summer): poppers, Whopper Ploppers, walkers dawn/dusk >60–65°F. Floats: Mepps #3, Wee-Craw on Upper Iowa/Turkey/Wapsi. Gear: 7' ML/M spinning, 8–10 lb braid to 6–8 lb fluoro.

Sources — programs.iowadnr.gov FishIowa SMB; iowadnr.gov regulations; eregulations.com; IAC Ch. 81; iowadnr.gov 2025 rivers release; iowasportsman.com; bassmaster.com; sportingclassicsdaily.com; wired2fish.com

Overview & ID — Morone chrysops: schooling temperate bass, silver-white, 5–7 dark horizontal stripes, separated dorsals, lower jaw projecting. Not the brassy yellow bass (broken/offset stripes) nor the larger wiper.

Iowa presence & top waters — Common-abundant in the Mississippi (all pools; tailwaters below L&D 9–15, Dubuque/Guttenberg) & tributaries. Interior rivers Cedar, Iowa, Des Moines (below dams in spring). Reservoirs Saylorville, Red Rock, Coralville, Rathbun. Natural lakes Big Spirit, E/W Okoboji, Storm, Clear. Spring runs (April–May) stack schools below dams/spillways — the most predictable bite of the year.

Average & trophy size — 9–15 in / 0.5–1 lb; few live past 4 yrs, so rarely over 2–3 lb. Quality 14–15 in (~1.5 lb). Trophy 16+ in / 2+ lb; 17–18+ in / 3+ lb genuine trophy.

Spawn — April–mid-June, peak late April–May; trigger 58–70°F. Broadcast, no care; schools run up tributaries/current, stacking below dams/spillways/riffles over sand-gravel; lakes on wind-swept gravel/current areas. Males first; daylight surface spawn.

Best time of day/night — Spring run: often all day in stained current; mid-morning–afternoon peaks. Summer: dawn/dusk surface jumps; strong night bite around lighted docks/bridges (state record 3:30 a.m.); midday deep (15–30 ft). Fall: morning–midday on wind-blown points. Winter: midday, deep holes/ice hours.

Lunar/solunar — Light/baitfish position > moon phase; majors/minors overlapping dawn/dusk help; best night-dock bite near new moon; full-moon nights extend after-dark feeding. During spring run, current/temp/flow override lunar effects.

Weather & barometric — Pre-front (falling pressure, warm/humid/S wind) = best, wildest surface action. Post-front high/bluebird → deeper/tighter; downsize, vertical (spoons/blades). Wind = friend. Overcast extends surface bite; bright sun → deep.

Iowa legal (2026) — Continuous; no length limit; no statewide bag/possession inland. Mississippi & backwaters: 25 daily / 50 possession, aggregate w/ yellow bass. IA–MN border lakes: no bag/possession. (Distinct from wiper.)

Records — Iowa: 5.11 lb, 21.70", Justin Sturtz, East Okoboji (Hwy 71 bridge), June 3 2019, 3:30 a.m. on a lighted bobber w/ shiner, released. US = IGFA world = TIE at 6 lb 13 oz: Ronald Sprouse (Lake Orange, VA, 1989) & Corey Crochet (Amite River, LA, 2010). Neighbors: WI 5-3.8 (Mississippi, 2019); MN 4-8 (2016); MO pole-and-line 5-6 (Table Rock, 2002).

Record baits — Iowa: live shiner under lighted slip bobber in a current funnel at night. World-record fish baits undocumented in IGFA listing.

Current tactics — Spring run: DNR says cast an inline spinner where whites chase minnows in current (Mississippi Pools 9–11). Rooster Tails, Mepps Aglia #2–3, Blue Fox Vibrax (white/chartreuse/silver), 1/8 oz marabou/curly-tail jigs (classic tandem white/yellow), 1/4 oz Kastmasters up-and-across seams. Summer: dawn/dusk jumps — topwaters (Tiny Torpedo, Whopper Plopper 75), tail-spinners, inline spinners; midday vertical-jig deep schools (jigging spoons). Night: shiners/small jigs under lighted docks. Fall: blade baits (Heddon Sonar, Echotail, Steel Shad), lipless cranks, small underspins/paddletails. Winter/ice: small jigging spoons, blade baits, Jigging Raps. Match the shad/shiner; stay on the school.

Sources — programs.iowadnr.gov FishIowa WHB; masterangler 24662; iowasportsman.com; IAC Ch. 81; eregulations.com; kchanews.com DNR reports; en.wikipedia.org/wiki/White_bass; hookedinfishing.com; WI/MN DNR records; wired2fish.com

Overview & ID — Hatchery hybrid (female striper × male white bass), sterile, stocked-only. Broken/offset stripes; two tooth patches on tongue (white bass has one). Grows much larger/thicker than white bass.

Iowa presence & top waters — First stocked 1981 Saylorville (1984 Mississippi Pool 14) to crop gizzard shad; raised at Mt. Ayr, non-reproducing → maintenance-stocked. Waters: Saylorville, Big Creek, Rathbun, Coralville, Red Rock, MacBride, Pleasant Creek, Manawa, Icaria, Three Mile, Black Hawk, Schildberg (Atlantic); river escapees in Iowa River (Iowa City) & Des Moines River. Recent (2024–25) stockings: Rathbun, Coralville, Icaria, Manawa, Schildberg.

Average & trophy size — ~14 in age 2, ~20 in/~5 lb age 4, ~24 in age 8. Most 15–22 in / 2–6 lb. Trophy ~8–10+ lb; Master Angler 24 in. 10–15+ lb exceptional.

Spawn — Sterile; "false spawn" run April–May (~55–65°F) up tributaries/current toward rock — prime fishing though no young result.

Best time of day/night — Spring: midday staging + low light. Summer: dawn/dusk boils, midday deep/suspended, night near lights. Fall: aggressive daytime shad feeds, sunrise/sunset peaks. Overcast extends surface bite.

Lunar/solunar — Shad-driven; majors/minors reinforce dawn/dusk windows; days around new/full moon trigger consistent surface feeding. Tiebreaker atop baitfish location/light.

Weather & barometric — Best on falling barometer ahead of front and stable low pressure w/ clouds + light chop. Wind = major positive (stacks shad on points/coves/dam faces). Cold front/bluebird shuts it down → deeper/suspended, slow vertical (spoons, blades, live bait).

Iowa legal (2026) — Continuous; no statewide length limit and no bag/possession inland or on Missouri/Big Sioux boundary. Mississippi 25/50 structure is for white/yellow bass, not specifically wipers. Individual lakes may post special regs — verify.

Records — Iowa: 19 lb 10 oz (19.63 lb), 33", Youa Lovan, Saylorville, Aug 29 2005 (bait "Other"). US = IGFA world = SAME FISH: 27 lb 5 oz, Jerald Shaum, Greers Ferry Lake, AR, Apr 24 1997. Neighbors: KS ~22 lb; NE 21-9 (Lake McConaughy, 2020).

Record baits — Iowa undocumented. World record (Shaum) bait not confirmed by IGFA — trophy wipers typically live gizzard shad, large swimbaits, or jigging spoons near suspended shad (flagged uncertain).

Current tactics — Find the shad, find the wipers (watch boils, diving birds, bait clouds on electronics). Topwater at boils/dawn/dusk: Zara/Super Spook, Whopper Plopper, Pop-R, Cordell Redfin. Swimbaits: 3.5–5" shad paddletails (Keitech, Storm WildEye, Zoom Swimmin' Super Fluke) on 1/4–3/4 oz. Jigging spoons & blade baits (suspended/deep, post-front): 1/2–1 oz spoons (Kastmaster, Hopkins), Jigging Raps on the school. Live gizzard shad/large minnows over deep fish (Saylorville, Rathbun). Cranks (lipless, shad divers) over points/rock piles. Rivers/tailraces: jigs & swimbaits into current seams (Iowa City 10–15 lb shore fish). Gear: 7' MH spinning, 3000 reel, 20 lb braid to 15–17 lb fluoro. Note Iowa two-hook max limits umbrella rigs.

Sources — iowadnr.gov hybrid-striped-bass; FishIowa SBH; masterangler 4732; eregulations.com; IAC Ch. 81; thegazette.com; kchanews.com; westerniowatoday.com; aa-fishing.com; hookedinfishing.com; ksoutdoors.gov

Overview & ID — Morone mississippiensis ("stripey"): small, brassy golden-yellow, 5–7 stripes with lower stripes broken/offset above the anal fin; no tongue tooth patch.

Iowa presence & top waters — Native to Mississippi drainage; thrives in large natural lakes, oxbows, reservoirs at high density. Clear Lake (Cerro Gordo) = most famous yellow bass fishery in the state (Yellow Bass Bonanza ice tournament). Also E Okoboji (standout), W Okoboji, Minnewashta; Mississippi & backwaters; Maquoketa; North Twin, Storm, Manawa, Cornelia, Three Mile, Twelve Mile, Anita (stunted in several southern lakes). Lakes outproduce rivers.

Average & trophy size — ~7" age 2, 9" age 3, 10" age 4; typical catch 8–10 in / ¼–½ lb ("rarely over ¾ lb"). Trophy 11–12+ in or ~1 lb. State record only 14.5"/1.75 lb.

Spawn — May (late April warm springs), 60–65°F; congregate 2–3 ft over firm rock/gravel/sand; river fish run tributaries; semi-buoyant broadcast eggs, no care.

Best time of day/night — Open water: evening/early-morning low light mid-water/surface; midday hug bottom deeper (within 6"). Winter/ice (marquee): daytime bite, flurries mid-morning–afternoon w/ strong late-afternoon window; mostly shut off after dark. Schools roam basin/mud flats — find roving schools.

Lunar/solunar — No species-specific research; minor tiebreaker; majors overlapping dawn/dusk sharpen the low-light windows; location & weather trump moon.

Weather & barometric — Pre-front (falling pressure) = best open-water windows. Post-front tougher but yellows are less front-sensitive than crappie/bluegill (why Clear Lake winter fishery is so consistent). Wind-blown rock shorelines/reefs stack them. Overcast extends the window. Stable multi-day weather = predictable school movements under ice.

Iowa legal (2026) — Continuous; no length limit; no daily/possession inland. Mississippi & backwaters: 25/50 (group w/ white bass). License required.

Records — Iowa: 1 lb 12 oz (1.75 lb), 14.5", Bill Campbell, Lake Manawa (Pottawattamie Co.), Apr 1 1991 (NOT Clear Lake/Lake Delhi). IGFA world: 2 lb 9 oz, John Chappell, Duck River, Waverly, TN, Feb 27 1998 (Approved; also TN record). Largest documented US ("national"): 2 lb 15 oz, 16.7", Jim Raymer, Morse Reservoir, IN, Nov 4 2007 (Indiana record; not IGFA-certified → world record and biggest-ever are DIFFERENT fish). DISPUTED: a "4 lb 5 oz Morse 2023" world record cited by Wikipedia/Wired2Fish does NOT exist in IGFA DB (error). Neighbors: WI 2-13.8 (Lake Mendota, 2025); MN 1-3 (Clear Lake, Jackson Co. MN, 2024).

Record baits — IGFA world (Chappell) undocumented. Biggest-ever US (Raymer): 1/16 oz Mizmo orange/chartreuse tube jig w/ Kodiak scent. Iowa (Campbell) undocumented. WI 2025: casting from shore, lure undisclosed.

Current tactics — ICE (headline Iowa fishery — Clear Lake, E Okoboji): run-and-gun, drill many holes across basin mud flats/mid-depth contours, ~2 min/hole. Tungsten jigs (3–5 mm) & small jigging spoons tipped w/ spikes/maggots (regulars prefer maggots/Eurolarvae over waxworms) or a strip of yellow bass belly meat (classic Clear Lake tipper); jigging spoons w/ dropper chains (gold/chartreuse) for flash; pound bottom to puff silt (yellows eat benthic bloodworms). OPEN WATER: light spinning 4–6 lb mono; 1/64–1/16 oz jigs (marabou/tube/plastic + minnow head/waxworm), small inline spinners, jigging spoons within 6" of bottom midday, mid-water/shallow at dawn/dusk. May spawn: 2–3 ft rock reefs/gravel w/ small jigs under slip bobbers (harvest encouraged — they overpopulate). Summer: cut bait/nightcrawler pieces drifted along reef edges/basin breaks.

Sources — iowadnr.gov yellow-bass; FishIowa YLB; iowadnr.gov state-record-fish; eregulations.com; IGFA member-portal DB; fishin.com; wired2fish.com (contains flagged error); MN DNR; iowasportsman.com; razrpowr.com; kchanews.com; yellowbassbonanza.com

Flags (Group 2)

• No Iowa state records equal the US or world record. US = world (same fish): largemouth (Perry/Kurita tie), smallmouth (Hayes), white bass (Sprouse/Crochet tie), wiper (Shaum). Yellow bass is the exception (IGFA world ≠ largest US fish).
• Disputed/uncertain: Perry largemouth (pre-IGFA weight), Hayes smallmouth (delisted→reinstated), the IGFA-unsupported "4 lb 5 oz" yellow bass claim (error), WI 1950 smallmouth (thin), wiper record baits undocumented.
• Black bass carry Iowa's most complex water-specific rules — always confirm lake signage.

Overview & ID — Pomoxis nigromaculatus: deep, silvery, irregular scattered black blotches (no bars), 7–8 dorsal spines; prefers clearer water than white crappie.

Iowa presence & top waters — Statewide (rare in western Missouri basin); clear rivers, natural lakes, reservoirs, Mississippi backwater sloughs. Mississippi pools/backwaters; W/E Okoboji, Spirit; Clear Lake; Rathbun, Big Creek, Saylorville, Brushy Creek; Lake of Three Fires (Taylor Co. — new record water).

Average & trophy size — Most 8–12". 12" good; 13–14" trophy; 15"/2-lb class = fish of a lifetime. Exceptional near 4 lb (2026 record 3.95 lb / 17.8").

Spawn — Late spring (May), 58–64°F; nests 3–8 ft near timber/vegetation over sand/muck; 20,000–150,000 eggs. Pre-spawn staging = best big-fish bite.

Best time of day/night — Low-light: dawn/dusk prime; feed after dark in summer (lights over brush). Pre-spawn/spawn afternoons. Summer suspend over basins/brush — early/late/night. Fall midday. ICE: marquee species — last hour of light into dark, suspended fish over deep basins/brush on sonar (how the 2026 record fell).

Lunar/solunar — Spawn waves strongly tied to spring new/full moons (first full moon after high-50s water); year-round majors (moonrise/set at dawn/dusk) concentrate suspended crappie.

Weather & barometric — Stable warm w/ falling barometer pre-front = best (gorge pre-front). Cold front/bluebird high = classic crappie killer (tight to brush, deeper, finicky); downsize to tiny plastics/hair jigs, deadstick, put bait IN cover. Overcast/stable extends shallow bite; light wind on cover helps.

Iowa legal (2026) — Continuous; no length limit. Inland 25 daily (black+white combined), no possession limit. Boundary/Mississippi 25/50. Some lakes run local minimums (9–10") — verify.

Records — Iowa (NEW 2026): 3.95 lb, 17.8", Micaiah Thompson, Lake of Three Fires (Taylor Co.), Feb 8 2026, through the ice (certified Feb 10; broke 3.88 lb from 2013). US & IGFA world = SAME FISH: 5 lb 7 oz, Lionel Ferguson, Richeison Pond, TN, May 15 2018.

Record baits — Iowa: green jig tipped w/ minnow, jigging a deep brush pile on sonar. IGFA world: a jig.

Current tactics — Open water: 1/16–1/32 oz jigheads + 2" plastics (Bobby Garland Baby Shad/Slab Slay'R, Crappie Magnet, tubes) in white/chartreuse/blue & shad; live minnows on #2–4 Aberdeen under slip float; hair jigs. Cast to brush/laydowns/timber/docks/pilings; count down to suspended fish. Spider-rig/long-line minnows & jigs over deep brush/channels in summer. Pre-spawn: staging fish on first breakline outside bays. ICE: tungsten jigs (3–5 mm) + minnow/head/plastic (Maki, Bobby Garland); jigging spoons (Kastmaster, Slender Spoon, Buckshot Rattle) to call, finish on jig-minnow; last hour of light into dark.

Sources — programs.iowadnr.gov FishIowa BLC; iowadnr.gov state-record-fish; outdoorlife.com; outdoorhub.com; IAC Ch. 81

Overview & ID — Lepomis macrochirus: deep, compressed, olive-copper w/ vertical bars, small mouth, solid black (unmargined) ear flap, dark blotch at rear of soft dorsal.

Iowa presence & top waters — Nearly all waters; strongest in lakes/ponds/reservoirs & Mississippi backwaters. West Okoboji, Spirit, Clear Lake; Rathbun, Big Creek, Saylorville, Brushy Creek; countless farm ponds (biggest 'gills); Mississippi pools/backwaters.

Average & trophy size — Most ≤8"; good 9"; trophy 10" (~1 lb). Over 10.5"+ = wall-hanger. State record 12.88"/3.13 lb.

Spawn — Late May–early Aug, peak early June, 70–80°F. Males fan 1–2 ft saucer nests in 1–4 ft, colonial ("elephant tracks"); guard beds.

Best time of day/night — Spring/early summer mornings & evenings on beds (midday hot during spawn). Summer early morning & last two hours; big 'gills suspend over deeper basins/weed edges midday. Fall midday. Ice: top target — first/last light + midday flurry; weed edges early ice → deeper basin/mud flats (bloodworms) mid/late winter.

Lunar/solunar — Bed spawning loosely tied to late-May/June full & new moons; day-to-day majors/minors sharpen windows, but water temp & light outweigh moon.

Weather & barometric — Stable, warm, slightly overcast w/ falling/steady barometer = most aggressive; pre-front bite often best window. Cold front/bluebird high pressure → tighter cover, deeper, slower; downsize & fish vertically. Light chop concentrates plankton/fish on windblown shores.

Iowa legal (2026) — Continuous; no length limit. Inland: daily 25, no possession limit. Boundary/Mississippi: bluegill+pumpkinseed 25/50. Private: no limit.

Records — Iowa: 3.13 lb, 12.88", farm pond, July 1 1986, Phil Algreen. US & IGFA world = SAME FISH: 4 lb 12 oz, Ketona Lakes, AL, Apr 9 1950, T.S. Hudson.

Record baits — World record: cane pole w/ red worms. Iowa: undocumented (farm pond).

Current tactics — Open water: 1/32–1/16 oz jig + live nightcrawler piece/waxworm/small leech under a slip bobber = bread and butter; big 'gills on 2–3 mm ice-plastics, tiny tube jigs, or 1/80–1/32 oz jig w/ Gulp! micro leech/waxie. Fish weed edges, laydowns, docks, brush; suspend just above cover. ICE: tungsten jigs (2–4 mm, #12–14, green/orange/gold) + 1–2 waxworms/spikes or soft plastic (Maki, Ratfinkee); sight-fish weed edges early ice, basin mud flats mid-winter, slow lift-quiver-hold; spring bobber for the subtle inhale.

Sources — programs.iowadnr.gov FishIowa BLG; iowadnr.gov state-record-fish; eregulations.com; IAC Ch. 81; outdoorlife.com; wired2fish.com

Overview & ID — Lepomis microlophus ("shellcracker"): bluegill-like but red/orange margin on the black ear flap (males); crushing pharyngeal teeth for snails. Green sunfish: bigger mouth, elongate/bass-like, blue-green w/ yellow fin edges, aggressive, pollution-tolerant. Pumpkinseed: orange-spotted, red ear-flap spot, wavy blue cheek lines, clear vegetated northern lakes.

Iowa presence & top waters — Introduced to man-made lakes in the 1960s; common-occasional in the southern two-thirds, mostly steep-sided reservoirs; rare in Missouri/Mississippi. Lake Darling, Lake Geode, Union Grove Lake. Lake fish, not river.

Average & trophy size — Keepers 7–9"; ~7" by age 4. 10" strong; trophy 11"+ / over 1 lb. State record 12.80"/2.31 lb.

Spawn — Late May–June, 68–75°F; colonial nests near plants, audible "popping" courtship; ~20,000 eggs, hatch 6–10 days; bed slightly deeper/earlier than bluegill where they overlap.

Best time of day/night — Daytime bottom feeder; warm calm mornings/evenings during spawn; summer near bottom on hard/snail structure, mid-morning–afternoon. Rarely iced in Iowa. Open-water spring/early summer window.

Lunar/solunar — Bedding waves cluster around late-spring full/new moons; majors modestly help; temp & bottom content (snails) drive location.

Weather & barometric — Stable warm w/ steady/slowly falling barometer best; less weather-sensitive (bottom invertebrate feeder) but hard post-front high still tightens/slows. Light wind on bedding flats helps.

Iowa legal (2026) — General sunfish/bluegill rules: continuous, no length limit, inland 25 daily/no possession limit (boundary rivers 25/50 aggregate). No redear-specific reg.

Records — Iowa: 2.31 lb, 12.80", farm pond, 2018, Elijah Parrett. US & IGFA world = SAME FISH: 6 lb 4 oz, Thomas Farchione, Lake Havasu, AZ, May 4 2021. Green sunfish world (US): 2 lb 2 oz, Stockton Lake, MO, 1971. Pumpkinseed world (US): 1 lb 8 oz, Honeoye Lake, NY, 2016.

Record baits — Redear world record: nightcrawler (Havasu giants eat invasive quagga mussels). Green sunfish world: river worm. Pumpkinseed world: worm.

Current tactics — Fish on/right above hard bottom (they crush snails/mussels): nightcrawler/red worm on #6–8 hook w/ light split shot, or 1/16 oz jig + worm/Gulp!, slow near bottom on rock/gravel/snail flats. Slip-bobber a worm over bedding colonies late May/June. Slow it down and keep it low — a dragged/deadsticked worm beats a fast jig. Green sunfish hit aggressively — small jigs, spinners, worms near cover.

Sources — programs.iowadnr.gov FishIowa RSF; iowadnr.gov state-record-fish; outdoorlife.com; IAC Ch. 81

Overview & ID — Ambloplites rupestris ("redeye/goggle-eye"): stocky olive-brown, red eyes, rows of dark belly spots, 6 anal spines; larger mouth than bluegill.

Iowa presence & top waters — Stream fish of clear rocky interior NE rivers — Upper Iowa, Cedar, Turkey, Wapsipinicon systems; occasional large natural lakes; rare upper Des Moines & Mississippi. Iowa's most river-dependent species on this list.

Average & trophy size — Slow to 5–7" by age 3; "seldom over 10"." 8" nice; 10" trophy. State record 10.5"/1.5 lb.

Spawn — May–June, 65–75°F; males build gravel/sand nests (near cover/current breaks) and guard; ~5,000 eggs.

Best time of day/night — Low-light/shade ambusher: dawn/dusk & overcast days; tucks into shadows of rock/log/undercut banks. Rarely iced. Summer–early fall in rivers prime.

Lunar/solunar — Minimal documented influence; cloud cover, light level, current/flow matter far more; majors may add slight dawn/dusk edge.

Weather & barometric — Overcast/stable & pre-front falling barometer bring them out to feed; bright sun/high pressure pins them tight to shade/rock (pitch into cover). Rivers: flow/clarity after rain dominates — favor clear-to-lightly-stained water w/ moderate current, feed hard as river drops/clears post-rain.

Iowa legal (2026) — Continuous; no length limit. Grouped w/ white/yellow bass/wiper; inland no separate rock-bass cap beyond general panfish framework; Mississippi 25/50. Lightly regulated — confirm the water's aggregate rules.

Records — Iowa: 1.5 lb, 10.5", Pool 11 Mississippi, 1973, Jim Driscoll. US & IGFA world = TIE at 3 lb 0 oz: Peter Gulgin (York River, Ontario, Aug 1 1974) & Herbert Ratner Jr. (Lake Erie, PA, June 18 1998). US national effectively Ratner's PA fish.

Record baits — Gulgin: Mepps #2 spinner (Zebco rod, Shakespeare 10-lb line). Ratner: similar light spinning. Iowa undocumented.

Current tactics — Eat like a small bass: small inline spinners (Mepps/Panther Martin #0–2), 1/16–1/8 oz jigs w/ 2" grubs/tubes, small crankbaits, live bait (nightcrawlers, crayfish, minnows, hellgrammites). Fish rock, riprap, logjams, undercut banks, current breaks in NE smallmouth streams; cast upstream, work shaded pockets/eddies near cover. Readily hit flies (woolly buggers, poppers, nymphs). Keep bait near bottom, tight to structure; downsize in clear water.

Sources — programs.iowadnr.gov FishIowa ROB; iowadnr.gov state-record-fish; outdoorlife.com; igfa.org; IAC Ch. 81

Flags (Group 3)

• Black crappie record is brand-new (3.95 lb, Feb 8 2026, Lake of Three Fires, through the ice). Iowa hybrid crappie (4.08 lb, 2024) and white crappie (4.56 lb, 1981) both outweigh it.
• For bluegill, redear, black crappie, white crappie, yellow perch: US national = IGFA world (same fish). Rock bass = two-way IGFA tie (Canada + PA).
• Undocumented/uncertain: 1865 yellow perch world record; exact bait on 1957 white crappie & 1981 Iowa white crappie records.

Overview & ID — Pomoxis annularis: slimmer/paler than black crappie, spots in 5–10 faint vertical bars, only 6 dorsal spines; tolerant of turbid, silty water.

Iowa presence & top waters — Statewide lakes/large rivers; most abundant Mississippi & large turbid interior streams/reservoirs (out-competes black crappie in murky impoundments). Southern-Iowa flood-control reservoirs, Des Moines & Iowa river systems, Mississippi pools. Green Castle Lake (Marshall Co.) = record water.

Average & trophy size — 10–12" by age 4; "seldom over 2 lb in Iowa." 13" = trophy. State record 4.56 lb (exceptional).

Spawn — Late April–early May, ~56°F (earlier/warmer trigger than black crappie); males fan depressions in coves 3–10 ft; eggs hatch ~3 days.

Best time of day/night — Same low-light pattern; dawn/dusk & after dark in summer. Tolerates stained water — often bites better in murk/midday clouds than blacks.

Lunar/solunar — Spawn tracks spring full/new moons; majors sharpen daily feeding, though moonlight effect muted in stained water.

Weather & barometric — Falling barometer/pre-front = best; post-front high/clearing slows them to cover. Turbidity tolerance means they bite in muddy wind-stirred water that shuts clearer-water panfish; rising muddy river after rain concentrates them on current breaks/eddies.

Iowa legal (2026) — Same as black crappie: continuous, no length limit, inland 25 daily (combined), no possession limit; boundary 25/50.

Records — Iowa: 4.56 lb, Green Castle Lake, 1981, Ted Trowbridge (outweighs black-crappie record). US & IGFA world = SAME FISH: 5 lb 3 oz, Fred Bright, Enid Dam, MS, July 31 1957. (Iowa hybrid crappie record: 4.08 lb, Sundown Lake, 2024, John Foster.)

Record baits — Iowa 1981 undocumented. IGFA world tackle recorded (Action rod, Denison-Johnson reel, Ashaway line) but specific bait uncertain.

Current tactics — Nearly identical to black crappie, but lean to brighter/visible colors (chartreuse, white, orange) & slightly larger profiles in stained water; add rattle/vibration or scented plastic. Live minnows under slip float shine in murky reservoirs; 1/16 oz jig + 2" plastic to timber/riprap/pilings/current seams. Rivers: target eddies, wing-dam pockets, woodpiles behind breaks; vertical-jig or spider-rig deep brush in summer; add stinger hook for short-biters.

Sources — programs.iowadnr.gov FishIowa WHC; iowadnr.gov state-record-fish; outdoorlife.com; IAC Ch. 81

Overview & ID — Perca flavescens: elongate golden-yellow, 6–8 dark vertical bars, orange-tinted lower fins; prized firm sweet flesh.

Iowa presence & top waters — Statewide, greatest abundance in northern natural lakes; rarely flowing water except Mississippi. Spirit, W Okoboji, E Okoboji, Clear Lake; several Mississippi pools. Prime open-water & ice target in the Great Lakes region.

Average & trophy size — Slow: ~5.6" age 2, ~7.7" age 3, ~10.6" age 7. 10" nice; 12" ("jumbo") trophy; 13"+ exceptional. State record 16.4"/2.79 lb.

Spawn — Early spring near shore at 45–55°F (April); females drape gelatinous accordion egg ribbons over sand/vegetation/brush; no care; hatch 12–21 days.

Best time of day/night — Daytime bottom sight feeder — bite best in full daylight, largely shut off after dark. Feed all day in deeper water, shallow toward evening. ICE: premier Iowa species — strong all-day bite, peaks mid-morning & mid-afternoon; roam & drill to find schools.

Lunar/solunar — Diurnal, so moon/night effects minimal; daytime majors can bump activity, but sunlight & finding the roaming school matter far more.

Weather & barometric — Stable/slightly-falling pressure keeps schools feeding; strong cold front/post-front high scatters/deepens them (negative on ice — downsize/deadstick). Highly mobile — if a spot dies, move.

Iowa legal (2026) — Continuous; no length limit. Daily 25, possession 50 (inland & Mississippi). Missouri R.: no daily/possession limit. No special Okoboji/Spirit perch reg found — standard 25/50 applies.

Records — Iowa: 2.79 lb, 16.4", private pond, 2019, Royce Krummen. US & IGFA world = SAME FISH: 4 lb 3 oz, Dr. C.C. Abbott, Bordentown, NJ, May 1865 — oldest standing freshwater world record; essentially undocumented beyond weight/date.

Record baits — 1865 world record method not documented (no photos). Iowa private-pond fish undocumented.

Current tactics — Open water: live fathead minnows or nightcrawler piece on #4–6 hook w/ bottom rig or slip float; 1/16–1/8 oz jigs & small spinners + minnow/plastic near bottom on sand/gravel/rock flats & weed edges 15–35 ft. ICE (signature Iowa game): jigging spoons & tungsten jigs + waxworms/spikes/minnow head — Kastmaster/Buckshot Rattle/Swedish Pimple to call, then 3–4 mm tungsten + 2–3 maggots to close; fish right on bottom, "pound" the mud; drop-shot minnows & a deadstick second line; MOBILITY is key.

Sources — programs.iowadnr.gov FishIowa YEP; iowadnr.gov state-record-fish; eregulations.com; outdoorlife.com; IAC Ch. 81

Overview & ID — Ictalurus furcatus: largest North American catfish; slate-blue to silver, no spots, deeply forked tail, long straight-edged anal fin (30–36 rays — reliable separator from big channels). Iowa's heavyweight champion.

Iowa presence & top waters — Essentially a Missouri River fish in Iowa: population & every 100-lb-class catch center on the channelized Missouri, Sioux City to state line, epicenter Council Bluffs–Omaha (both current & prior state records). Rare in Iowa's Mississippi stretch; absent from interior streams, though present lower Des Moines R.; a 76-lber from lower Big Sioux near Missouri confluence. DNR stocked blues in a few lakes (e.g. Three Mile) as put-grow fisheries.

Average & trophy size — Missouri R. commonly 5–25 lb (DNR cites 20–25 for adults). 40 lb strong; 50–70 lb trophy; river holds 100-lb fish (Iowa record territory).

Spawn — June–early July, 70–75°F. Cavity spawners (washouts, riprap voids, bank cavities in reduced current); males guard. Pre- & post-spawn feed hard; spawn window lull-ish for big fish.

Best time of day/night — Least nocturnal big cat — feeds whenever current/bait position them, day or night. Late fall–early spring (Nov–March) = trophy window, daytime bite (big blues gang in deep wintering holes, feed midday in cold water); numbers March–April. Summer day & night, dawn/dusk current-seam feeds. October cooling water proven (105-lb record Oct 12).

Lunar/solunar — Most angler-reported moon correlation of the cats: trophy hunters like 3–4 days around full & new moons + moon-overhead/underfoot majors. Evidence thin — on the Missouri, current & water temp dominate.

Weather & barometric — Pre-frontal falling barometer accelerates the bite (incl. winter — day before a snow/rain front). Post-front high slows fish 24–48 hr (deeper/slower/smaller). RIVER DYNAMICS rule: modest rise + turbidity puts blues on seams/wing-dike tips/flooded structure; hard fast rise scatters to soft edges; sharp fall toughest. Winter: several sunny warming days spark shallow flurries.

Iowa legal (2026) — Same framework: continuous, no length limit; counts in combined catfish bag — 8 lakes / 15 streams (incl. Missouri R.), possession 30; Mississippi no bag/possession. Missouri R. is IA–NE boundary w/ reciprocal license recognition. No special blue-cat trophy/slot reg in the 2026 book.

Records — Iowa (NEW Oct 2025): 105 lb, 60", 39" girth, George Thompson (Omaha; Missouri River Catfish Guides), Missouri River near Council Bluffs, Oct 12 2025 (certified scales, DNR present, released; broke 21-yr-old 101-lb record — Mike Rush, 2004). US & IGFA world = SAME FISH: 143 lb, Richard Nicholas Anderson, Kerr/Buggs Island Lake, VA, June 18 2011. Neighboring giants: MO 130 (Greg Bernal, 2010 — former world record); IL 124 (Tim Pruitt, Mississippi, 2005 — former world record); KS 102.8; NE 100-8; MN & WI have no blue-cat records (Iowa at northern edge of trophy range).

Record baits — Thompson 105: cut skipjack herring on a 9/0 circle hook, 60-lb braid to 80-lb mono leader; 30-min fight, towed ~2 miles. Anderson 143: a chunk of chicken breast drifted (Ugly Stik/Daiwa). Bernal 130: fresh-cut Asian (silver) carp at night. Pruitt 124: live bluegill. Rush 101 undocumented.

Current tactics — Bait fresh/oily/big: cut skipjack herring (Missouri R. gold standard — note Iowa bait-transport rules), fresh-cut Asian carp, gizzard shad, mooneye/goldeye; heads & mid-sections on 8/0–10/0 circle hooks. Rigs: heavy slip-sinker/no-roll on ledges/dike scours; Santee Cooper (2–4" peg float, 18–30" leader) to lift baits over snags (the meta rig, anchored & drifting); three-way/dropper for controlled drifting across wintering flats; suspend-fishing over deep wintering schools on sonar (fastest-growing cold-water tactic). Pattern: summer wing-dike tips/outside-bend scour holes/current seams day or night; Oct–Dec front ends of deepest holes as bait pods stack; late winter–early spring deep holes midday, then pre-spawn seams Apr–May. Heavy tackle (60–80 lb braid, 7.5–8 ft MH/H); community releases 34"+ fish.

Sources — programs.iowadnr.gov FishIowa BCF; wired2fish.com (105-lb record); outdoornews.com; kcrg.com; outdoorlife.com; bestfishinginamerica.com; iowadnr.gov Ch. 81; eregulations.com; catfishedge.com

Overview & ID — Ameiurus melas / natalis / nebulosus: small square-tailed "mud cats," classic kids'-first-fish. Black (dark chin barbels, pale tail-base bar, smooth pectoral spines) is the common Iowa one; yellow (white/yellow chin barbels, rounded anal fin) second; brown (mottled flanks, strongly barbed pectoral spines) uncommon (Mississippi backwaters, some natural lakes). - Black: https://upload.wikimedia.org/wikipedia/commons/a/aa/Ameiurus_melas_2021_G1.jpg — page: https://commons.wikimedia.org/wiki/File:Ameiurus_melas_2021_G1.jpg - Yellow: https://upload.wikimedia.org/wikipedia/commons/b/b4/Ameiurus_natalis.jpg · Brown: https://upload.wikimedia.org/wikipedia/commons/b/b4/Ameiurus_nebulosus.jpg

Iowa presence & top waters — Black bullheads statewide — "the most common and widely distributed of the three" — in natural lakes, man-made lakes, farm ponds, river backwaters; favor quiet silty water, tolerate conditions that kill other fish. Storied waters = northern natural lakes: Silver Lake (Dickinson), Storm, Black Hawk, Five Island, North & South Twin, Lost Island, Clear Lake (2 lb+ fish). Yellows: clearer streams, gravel lakes, southern watershed lakes. Browns: Mississippi backwaters (record from Pool 9).

Average & trophy size — Iowa blacks typically 7–9" where crowded, 10–13" / 0.5–1.5 lb in better lakes. 2-pounder = trophy. State-record black 5.5 lb is a giant. Yellows chunkier where they thrive; browns rarely top a pound here.

Spawn — May–early June in weedy/muddy shallows, mid-60s–~70°F. Females excavate saucer nests 2–4 ft, ~2,000–6,000 eggs; parents (chiefly male) guard eggs then herd black fry balls for weeks (the June "bullhead clouds"); hatch under a week.

Best time of day/night — Bite all day, intensify late afternoon through first hours after dark (fan onto shallow shorelines to root). Spring (late Apr–June) is the season — post-ice-out warming bays; dusk shore fishing peak Iowa tradition. Mid-summer night beats day in clear lakes; fall tapers as they bury in soft basins.

Lunar/solunar — Negligible — feed by smell on bottom regardless of moon. Dark nights modestly favor the shallow evening bite. Schedule around water temp (55–75°F prime), not moon.

Weather & barometric — Most weather-proof biters in Iowa: warm drizzly low-pressure days outstanding; keep feeding through conditions that shut down walleye/bass. Warm rain washing worms into muddy shallows = classic trigger; post-front cold snaps only push them slightly deeper. Backwaters: rising water flooding vegetation concentrates them on new edges.

Iowa legal (2026) — Continuous; NO daily bag, NO possession limit, NO length limit anywhere in Iowa (2026 eRegs: "No limit for bullheads"). Not part of the 8/15 catfish bag.

Records — Iowa black: 5.50 lb, 22", Michael Hurd, farm pond, June 1 1986. Iowa yellow: 2.40 lb, Troy Dibbern, Little River Watershed Lake, 2018. Iowa brown: 1.25 lb, Dick Newcomer, Pool 9 Mississippi, 2015. IGFA world (also US): black 8 lb 2 oz (Frank Piazza, NY, 2015); brown 7 lb 6 oz (Glenn Collacuro, Mahopac Lake, NY, 2009); yellow 6 lb 6 oz (John Irvin, MO, 2007). Flag: an 11-3 black from a private LA pond (2021) reported to IGFA but no confirmation it was certified — treat Piazza 8-2 as standing record.

Record baits — Detail thin. Hurd's Iowa black undocumented ("Other" era). Certified IGFA bullhead records all on natural baits (nightcrawler-class); no lure-caught bullhead records. World-record-caliber bait = a nightcrawler on the bottom.

Current tactics — Keep it simple & scent-driven: whole/half nightcrawlers = 90%; also crawler chunks, chicken liver, cut-bait scraps, stink-bait nuggets, shrimp. Rigs: small slip-sinker (1/4–1/2 oz egg, #2–4 baitholder or 1/0 circle, 6–12" leader) or split-shot on bottom; slip-bobber just off bottom shines over soft silt/weeds and cuts down swallowed hooks. Fish warmest water in spring — mud bays, canal mouths, feeder-creek inlets — casting to 2–6 ft at dusk; chum w/ crushed crawler bits. Flatten pectoral/dorsal spines ("bullhead handshake") to avoid the sting. Spring runs at northern natural lakes (Silver, Storm, Five Island, Black Hawk) are community events; skinned pan-fried spring bullheads from clean cool water eat great.

Sources — programs.iowadnr.gov FishIowa BLB; statefishrecords.com; eregulations.com; outdoorlife.com; stacker.com

Flags (Group 4)

• Iowa blue-cat record changed Oct 2025 (105 lb, Thompson) — many reference sites still show the 101-lb (Rush) fish.
• Ken Paulie's 123-lb flathead world record is disputed but IGFA/KS-certified; one aggregator misnames the angler.
• BestFishingInAmerica's "1958" for Whaley's channel cat is wrong — it was July 7 1964.
• Catfish 2026 regs: combined 8 (lakes)/15 (streams + 4 flood-control reservoirs) daily, 30 possession, no length limit, continuous; NO catfish bag on Mississippi; bullheads unlimited statewide.
• Old Iowa record baits (Baze 1958, Curtis 2005, Rush 2004) formally undocumented ("Other").

Overview & ID — Ictalurus punctatus: slender fork-tailed cat, olive-gray to slate blue, scattered dark spots on younger fish, curved anal fin (24–29 rays) — separates from blue cat.

Iowa presence & top waters — Most abundant/widespread catfish; native to nearly every river/moderate stream, stocked in most lakes/ponds. Rivers: Mississippi (Pools 13–15 standouts — tailwaters/wing dams), Missouri, Des Moines (arguably best inland catfish river — Raccoon confluence/Scott St. dam, Red Rock tailwater), Cedar, Iowa, Skunk, Wapsipinicon, Raccoon, Big Sioux. Lakes: Clear Lake (5–10 lb common), West Okoboji (20-lb class), Coralville, Saylorville, Rathbun, Red Rock, Three Mile, + hundreds of stocked county lakes/ponds.

Average & trophy size — Typical 12–22 in / 1–4 lb (slow growth — a 10-yr Des Moines R. fish ~21 in). 10 lb+ very good; 15 lb+ trophy; 20 lb+ (30+ in) fish of a lifetime.

Spawn — May–July, peak June, ~75°F. Males guard dark cavity nests (undercut banks, riprap crevices, hollow logs, muskrat burrows, rock cavities — Coralville limestone cliffs in June); eggs hatch 6–10 days, male guards fry. Numbers can dip mid-spawn.

Best time of day/night — Ice-out–pre-spawn (Mar–May): midday–afternoon (winter-killed shad warm in shallows). Summer: classic evening–midnight bite (cats slide to shallow flats/seams/riffle heads after dark), dawn secondary. Fall: afternoon bites as water cools. Night bite partly tradition — channels feed around the clock in stained rivers — but on clear lakes (West Okoboji, Clear Lake) after-dark is decidedly better.

Lunar/solunar — Weaker than weather; tiebreaker. Some report better big-fish activity around new moon (dark nights concentrate the shallow night bite) & moonrise/moonset on full moon; majors overlapping dusk/dawn worth planning. No science consensus — flow/temp/forage swamp any moon signal.

Weather & barometric — Falling pressure ahead of a summer storm = prime (best in 12–24 hr pre-front & warm summer rain). Post-front bluebird/high slows the bite (downsize, deeper wood/holes). RISING, muddying rivers turn channels ON (push to flooded banks, creek mouths, slack seams) — a river just starting to rise after rain is the single best condition on the DSM/Cedar/Iowa. Falling/clearing water = tougher.

Iowa legal (2026) — Continuous; no length limit. Combined catfish bag 8 lakes / 15 streams (stream limit also at Coralville, Rathbun, Red Rock, Saylorville); possession 30. Mississippi R.: no bag/possession limit; Missouri R. stream limits (15/30). Reciprocal license rules on boundary waters.

Records — Iowa: 38 lb 2 oz (38.13 lb), 40", Dustin Curtis, Missouri River (Little Sioux–Council Bluffs), June 11 2005 (released). US & IGFA world = SAME FISH: 58 lb 0 oz, W.B. Whaley, Santee-Cooper Reservoir, SC, July 7 1964. Neighbors: IL 45-4, WI 44, NE 41-8, MN 38, KS 36.5, MO 34-10.

Record baits — Whaley's 58: reportedly an "Atlantic Coast bucktail" lure (Bronson reel) — big channels eat moving baits. Curtis Iowa record bait "Other" (undocumented).

Current tactics — Baits: fresh cut bait (shad, mooneye/goldeye, chubs) for bigger fish; nightcrawlers, chicken liver, dip/punch stink baits (Sonny's, Team Catfish Secret 7) for numbers June–Aug; shad guts in spring; live green sunfish/chubs where legal. Rigs: slip-sinker (Carolina) w/ 1–3 oz no-roll + 5/0–8/0 circle hook = do-it-all standard; Santee Cooper (peg float on leader) to ride cut bait above soft bottoms; slip-float to drift along riprap/logjams/undercut banks; three-way in tailwater current. Pattern: ice-out dead shad in warming bays; pre-spawn deep holes below riffles/creek mouths on rising water; summer nights shallow flats/seams up-current of daytime holes; fall deepest wintering holes at 50–65°F. Mississippi wing dams: anchor upstream, work scour hole & rock tips.

Sources — programs.iowadnr.gov FishIowa CCF; masterangler 4752; iowadnr.gov Ch. 81; eregulations.com; outdoorlife.com; bestfishinginamerica.com; catfishedge.com; statefishrecords.com

Overview & ID — Pylodictis olivaris: apex river predator, mottled yellow-brown, flattened head, protruding lower jaw, squared (not forked) tail; ambush predator strongly preferring LIVE prey.

Iowa presence & top waters — Most large interior rivers + flood-control reservoirs (Coralville, Saylorville, Rathbun, Red Rock); "one of the most abundant large catfishes of the Mississippi and Missouri Rivers." Des Moines R. (fish over 70 lb; Scott St. dam, Red Rock/Saylorville tailwaters), Mississippi (wood side channels, wing-dam scours, Pools 9–19), Missouri (60-lb+ from log jams/revetment holes), Cedar below Cedar Rapids, Iowa R. (50-lb class), Raccoon, Skunk, Wapsipinicon.

Average & trophy size — Common catches 5–20 lb (24–34 in). 30 lb fine; 40–50 lb trophy; rivers hold 60–80-lb fish. Flatheads over 20 in feed almost exclusively on live fish.

Spawn — June–July, ~75–80°F. Pairs spawn in cavities under log jams, undercut banks, riprap voids, barrels/washouts; male guards eggs/fry; big males stop feeding — late June–mid July toughest big-fish window.

Best time of day/night — True night species: deep timbered holes by day, prowl adjacent shallow flats/riffle crests/bank wood after dark; best dusk–~2 a.m. + short pre-dawn. DNR tip: "small sunfish under cut banks after dark; use strong hooks." Prime periods: May–June pre-spawn nights & Sept–Oct (heavy fall feeding). Daytime bites mainly in high muddy water. Winter semi-dormant.

Lunar/solunar — Most moon-attentive catfish anglers favor dark-of-the-moon (new moon) nights when flatheads roam shallow confidently; bright full-moon shifts feeding to moonset/moonrise/pre-dawn or tighter to wood. Majors in the first two hours after full dark. Anecdotal — river stage/temp matter far more.

Weather & barometric — Pre-frontal falling pressure on a muggy summer night = classic big-flathead condition; first stormy warm night after a stable stretch can be exceptional. Post-front high/clear/N wind is worst (bury in wood, 1–2 days off). RISING rivers help (flooded banks/eddy seams). Fast-falling river poor. Stable summer flows: consistency wins.

Iowa legal (2026) — Same as channel: continuous, no length limit, catfish-combined 8 lakes / 15 streams, possession 30; Mississippi no bag/possession; Missouri 15/30. Nothing requires releasing big flatheads, but the guide community overwhelmingly does.

Records — Iowa: 81 lb, 52", Joe Baze, Ellis Lake (Lucas Co.), June 1 1958 (Iowa's oldest standing record). US & IGFA world = SAME FISH: 123 lb (IGFA lists 123 lb 9 oz), Ken Paulie, Elk City Reservoir, Independence, KS, May 19 1998 (long debated in the community but certified-scale, IGFA/KS still recognize; one aggregator misnames the angler). Neighbors: NE 89, IL 81-6.4, MO 77-8, WI 74-5.1, MN 70.

Record baits — Paulie's world record: live minnow on light crappie tackle (Zebco reel, 14-lb Trilene) — most under-gunned world-record cat ever. Baze 1958 undocumented ("Other").

Current tactics — Bait is 90%: lively live bait — green sunfish, bluegill (where legal), bullheads, large creek chubs, 12"+ suckers/carp — on stout gear: 7.5–8 ft heavy rods, 65–80 lb braid or 30 lb+ mono, 8/0–10/0 circle/kahle hooks. Fresh-cut bait takes some (esp. early spring) but live rules. Rigs: heavy slip-sinker (3–8 oz no-roll) pinned to log jams/hole ledges; three-way for snaggy timber (check Iowa's separate trotline/setline rules). Pattern: anchor within a rod-length of the densest wood in the deepest hole at dusk; place baits on shallow escape routes (hole lip, upstream flat); 45–90 min per spot. Fall: deep wintering holes by day. Reservoir fish: flooded timber, riprap faces, tailwaters after rises.

Sources — programs.iowadnr.gov FishIowa FCF; masterangler 4753; iowadnr.gov Ch. 81; eregulations.com; outdoorlife.com; bestfishinginamerica.com; catfishedge.com

Overview & ID — Salvelinus fontinalis: Iowa's only NATIVE stream trout (a char): dark olive back w/ pale worm-like vermiculations, red spots w/ blue halos, white leading edges on orange lower fins; soft skin (tiny embedded scales).

Iowa presence & top waters — Nearly wiped out by 1900s land use; today wild/restored populations in the coldest cleanest Driftless headwaters. South Pine Creek (Winneshiek Co.) holds Iowa's flagship heritage population (believed descended from Iowa's original natives) — C&R, artificials only. Other brook C&R waters: Pine Spring Creek, Casey Springs, Falcon Springs. DNR raises South Pine-strain fingerlings to expand wild populations — e.g. French Creek upper reach (220 brook/mile to 11" in 2017 survey; fingerling stockings 1,500–5,000). Catchable brookies occasionally stocked in summer into streams like Waterloo Creek. No brookies in the urban winter pond program.

Average & trophy size — Small: 6–10" typical (¼–½ lb). 12" wild Iowa brook = trophy; 14"+ exceptional (French Creek survey max 11"). Nationally 20"+ is trophy, but that's coaster/pond talk, not Driftless headwater reality.

Spawn — Fall, slightly earlier/colder than browns: late Sept–Nov, 40s°F (~40–49°F), often over groundwater-upwelling gravel in the smallest headwaters. Males flame-orange bellies. Heritage populations tiny/localized — stay off spawning gravel in fall, keep wild brookies wet for photos.

Best time of day/night — Most daytime-friendly of the three — opportunistic, aggressive, in water cold all summer. Spring/fall mid-morning–late afternoon; summer morning best but shaded headwater brookies feed all day, evening close second; winter midday only (11–3). Night fishing pointless — visual daytime feeders.

Lunar/solunar — Weakest lunar responder. In tiny spring-fed headwaters temperature stability & drift dictate feeding. Prioritize cloud cover & low angler pressure over moon tables entirely.

Weather & barometric — Overcast, drizzly, falling-pressure days ideal — brookies in ultra-clear skinny water spooked more by your shadow than any front. Light rain/stain turns cautious heritage fish briefly reckless. Cold-tolerant (early spring/late fall cold snaps hurt them least) but most vulnerable to summer heat — after prolonged heat fish only the coldest spring-influenced reaches. Post-front sun: go low, cast long, use shade lines.

Iowa legal (2026) — Same statewide framework (fee, continuous season, 5/10 combined, no length minimum, kids rule). Brook-specific: all brook trout C&R, artificials only on South Pine Creek, Pine Spring Creek, Casey Springs, Falcon Springs. French Creek posted areas artificials-only (browns C&R; brook harvest legal within the 5-fish limit, but many voluntarily release all wild brookies). Spring Branch 14" min effectively makes it C&R for brook.

Records — Iowa: 7 lb 0 oz, Fountain Springs (Creek), Delaware Co., July 1996 (angler name inconsistent — "David Kovarik" vs "Doug Korvalik"; weight/water/year agree; a 7-lb brook from a small stream was almost certainly a hatchery brood fish). US (largest US state record): 10 lb 1 oz, Lake Michigan, WI, 1999 (Great Lakes "coaster"). IGFA world: 14 lb 8 oz, Dr. John W. Cook, Nipigon River, Ontario, July 1915 (some say 1916) — oldest freshwater record on the IGFA books (110+ yrs), also the North American record; documentation thin but never vacated. Three different fish.

Record baits — World (Cook 14-8, 1915): method/tackle not documented in IGFA listing; period accounts describe bait fishing on the Nipigon — any lure claim unverifiable. US (WI 10-1, 1999) not reliably documented. Iowa (7-0, 1996) undocumented. Unlike rainbow/brown records, no brook-trout record has a verified lure story.

Current tactics (spinning) — Shortest lightest rod: 4'6"–5'6" UL, 2–4 lb line; casts 15–30 ft in brush-choked headwaters. Micro inline spinners rule — most spinner-aggressive trout that swims: #0 Panther Martin (gold/black), #0 Mepps Aglia, 1/16 oz Rooster Tail; single-hook/barbless recommended (kinder on mandatory-release water); cast up-and-across into pocket water/plunge pools/under log jams; strikes in the first two cranks. Tiny spoons & micro-cranks (1/16–1/12 oz Kastmaster, 1–1.5" micro-crank) through deeper spring pools. Jigs: 1/64–1/32 oz marabou/tungsten micro-jigs under a small float (winter & pressured C&R fish). Bait (only where legal — NOT the four brook C&R springs): small garden/wax worm on #12, micro-shot, dead-drift (near-automatic on stocked-brook water like Waterloo Creek summer plants). Approach: fish upstream, one careful cast per pocket, keep moving; hit shaded banks first; handle heritage fish minimally (South Pine's population is genetically irreplaceable).

Sources — 2026 Iowa Fishing Regs (brook C&R streams); iowadnr.gov trout-fishing & trout species; FishIowa French Creek (TFR03), Waterloo Creek (TWA03); pescadoronthefly.com (South Pine heritage); statefishrecords.com; landbigfish.com; hookedinfishing.com; wired2fish.com; fieldandstream.com

Flags (Group 5)

• 2026 regs verified via the official 2026 Iowa Fishing Regulations booklet (26IAFW_LR.pdf) & DNR stocking pages; Iowa's trout season is continuous — no 2026 "opener."
• Uncertainties: Iowa brook-record angler name spelling (Kovarik vs. Korvalik); Nipigon world-record date (1915 vs. 1916) & thin documentation; bait/lure for all three Iowa state records undocumented; Konrad world-record rainbow is a farm-escapee triploid (stands but asterisked).
• The two biggest modern brown trout on record were both caught on spinning tackle (jig/crankbait), not flies — reassuring for a spin angler.

Overview & ID — Salmo trutta: Iowa's premier WILD trout; butter-brown to golden-olive, large dark spots (often pale-haloed), red/orange flank spots; spawning males vivid yellow-orange w/ kyped jaw. Bigger, bolder spots than other trout.

Iowa presence & top waters — Backbone of wild Driftless trout: 40+ streams w/ consistent natural reproduction (30 more w/ some), 50+ self-sustaining fisheries, 500–2,000 fish/mile on best water. Standouts: French Creek — crown jewel, ~2,100 wild browns/mile, fish to 20" lower section (C&R, artificials-only posted); Waterloo Creek (~685/mile to 23"; C&R artificial-only below Hwy 76, harvest above); South Bear Creek (~872/mile to 16"); North Bear, Coldwater, Bloody Run, Sny Magill, Ensign & Hewett, Spring Branch, Turkey R. tributaries. McLoud Run (Cedar Rapids) = urban coldwater brown stream (C&R, artificials only). Browns stocked as fingerlings in some marginal streams; urban winter pond stockings are rainbows, not browns.

Average & trophy size — Typical wild 9–14" (¼–1 lb). 15–17" quality; 18–20" genuine Driftless trophy (surveys confirm 20–23" in French/Waterloo). 5 lb+ in a stream exceptional; double-digit browns from lakes/pits (state record was a lake fish).

Spawn — FALL: Oct–early Dec, peak late Oct–Nov, mid-40s°F (trigger ~44–48°F), shortening photoperiod. Females dig redds in clean gravel at pool tailouts; males aggressive. Late Sept–Oct pre-spawn = best big-fish window. Avoid wading light-colored gravel (redds) Nov–Jan.

Best time of day/night — Spring midday early, then morning/evening by May. Summer: big browns go crepuscular/nocturnal — first light & dusk into dark dominate (legal night fishing; warm summer nights big browns hunt shallow flats/pool tails). Fall: all day during Oct pre-spawn aggression. Winter: warmest midday hours, sunniest banks, slow deep pools.

Lunar/solunar — Clearest lunar pattern of the three, mostly at night: around the full moon big browns feed more at night, daytime dips; new-moon dark concentrates hunting into dawn/dusk (better daylight fishing). Trophy hunters best at dawn after a dark night, or at night around the summer full moon. Solunar majors matter more on lakes/pits.

Weather & barometric — "The nastier the weather, the better the big-fish bite." Falling pressure ahead of storms, drizzle, heavy overcast pull large browns from undercuts in daylight. A slight stain from rain = single best big-brown condition. Post-front high + clear + low clear water is worst (go smaller, longer casts, low profile). Winter: fish thaws; summer: fish before fronts and at night in stable heat.

Iowa legal (2026) — Same core trout rules (fee, continuous season, 5/10). Brown-specific specials: French Creek & West Fork — all browns C&R, artificials only (posted); Waterloo Creek below Hwy 76 — C&R, artificials only; Hewett/Ensign & McLoud Run — C&R, artificials only; Bloody Run posted section — brown minimum length limit; Spring Branch — 14" min all trout, artificials only. Regs by segment — check signs.

Records — Iowa: 15 lb 6 oz (15.38 lb), North Prairie Lake (Cedar Falls), June 1995, Gerold Lewis (a community trout-stocking pond — a huge stocked holdover, not a stream fish). US (largest US-caught): 41 lb 7.25 oz, Tom Healy, Big Manistee River, MI, Sept 9 2009 (IGFA world 2009–2013). IGFA world: 44 lb 5 oz, Seumas Petrie, Ohau Canal, Twizel, New Zealand, Oct 27 2020 (NZ hydro-canal fish fattened on salmon-farm pellets). Three different fish.

Record baits — World (Petrie 44-5): casting a soft bait on a Nitro jighead, 6-lb line, near salmon-farm pens — spinning tackle. US (Healy 41-7): black-and-silver Rapala (Shad Rap) crankbait, 30-lb braid, salmon fishing. Iowa (Lewis) undocumented. Note: the two biggest modern browns both ate spin-fished hardware/jigs, not flies.

Current tactics (spinning) — 6'–6'6" UL/L, 4-lb fluoro (6 lb at night/in stain). Inline spinners top wild-brown searcher: #1–#2 Panther Martin (black/yellow-dot is a Driftless legend), Mepps Aglia gold, Blue Fox Vibrax #1 — upstream casts tight to undercut banks/root wads/riprap (browns hold structure more than rainbows); one-two casts per lie, then move. Small minnow baits for size: #5–7 floating/jointed Rapala, countdown CD-3/5, 2.5–3" jerkbaits (brown-trout or silver/black) twitch-paused through pools at dawn/dusk — the big-fish presentation, esp. pre-spawn (Sept–Oct) & summer nights. Jigs/plastics: 1/16–1/8 oz marabou (olive/black/brown), 2–3" swimbaits or Ned plastics through deep pools (deadly winter & after rains). Bait (harvest water only): nightcrawler along bottom past undercuts in stained rising water; chubs/creek minnows where legal. Approach beats lure choice — stay low, wade upstream, use bankside grass; overcast/slightly muddy days are trophy-hunting days.

Sources — iowadnr.gov trout-fishing; 2026 Iowa Fishing Regs; FishIowa French Creek (TFR03), Waterloo Creek (TWA03), South Bear (TSB96); iowadnr.gov trout species; statefishrecords.com; landbigfish.com; wired2fish.com; truenorthtrout.com; fieldandstream.com

Overview & ID — Oncorhynchus mykiss: olive-green back to silvery belly, small black spots over body/fins, pink-red flank stripe. Nearly all Iowa rainbows are hatchery-raised.

Iowa presence & top waters — DNR stocks 300,000+ catchable (10–12") rainbows into ~50 NE Iowa streams April–October, + 600 brood trout over 2 lb. Almost no natural reproduction (put-and-take/put-grow). Top Driftless: South Bear Creek (Winneshiek — ~13,600/yr, weekly, Highlandville), Waterloo Creek (Allamakee — ~10,000/yr), French Creek, North & South Bear, Coldwater Creek, Trout Run/Trout River (Decorah), Bloody Run & Sny Magill (Clayton), Spring Branch (Delaware), Richmond Springs (Backbone SP). URBAN/COMMUNITY program: 18 community lakes get 1,000–2,000 rainbows per stocking in fall (late Oct–Nov), winter (late Jan–Feb, ice permitting), spring (Mar–Apr) — Terra Lake (Johnston), Triumph Park (Waukee), Lake Petocka (Bondurant), Ada Hayden (Ames), Sand Lake (Marshalltown), North Prairie (Cedar Falls), Heritage Pond (Dubuque), Prairie Park Fishery (Cedar Rapids), Big Lake (Council Bluffs), Bacon Creek (Sioux City), Blue Pit (Mason City), Lake of the Hills (Davenport), + others.

Average & trophy size — Stockers 10–12" (½–¾ lb); holdovers/brood 14–20"; brood plants 2–5 lb. 16"+ stream fish very good; 20"/3 lb+ trophy (Master Angler min 20"). 10 lb+ almost exclusively escaped brood fish.

Spawn — Spring: Feb–April, mid-40s°F (~42–50°F). Redds in gravel tailouts; mostly behavioral display in Iowa (natural reproduction rare; hatcheries strip eggs). Aggressive brightly-colored fish on gravel early spring — avoid trampling redds.

Best time of day/night — Spring: mid-morning–afternoon; stocking days a free-for-all. Summer: dawn (first two hours) & last hour before dark; shaded riffles still produce midday (cold spring creeks). Fall: whole day, mid-morning–mid-afternoon best. Winter (streams open year-round): warmest slice ~11 a.m.–3 p.m., sunny afternoons. Night rarely needed.

Lunar/solunar — Muted on spring-fed creeks (constant 48–55°F flow, drift feeding dominate). Shows on community lakes (majors/minors, moonrise/set). New-moon dark nights improve dawn bites; full-moon nights can dampen morning. Tiebreaker — never skip a cloudy morning for a "poor" table.

Weather & barometric — Falling/steady-low pressure ahead of a front = best; post-front bluebird high toughest (esp. clear water). Overcast beats sun on gin-clear creeks. Light rain adding slight stain excellent; hard chocolate water kills lure fishing (switch to bait or fish clearer headwaters near springs). Winter: fish multi-day thaws/stable mild spells.

Iowa legal (2026) — License + trout fee. Continuous year-round; no Iowa opener. 5 daily / 10 possession (all trout), no statewide length minimum. Special-reg waters (artificials only / C&R as posted): Waterloo Creek (below Hwy 76), French Creek & West Fork (browns C&R), McLoud Run (Cedar Rapids), Hewett & Ensign creeks, Bloody Run (posted, brown length limit), Spring Branch (Delaware Co.): 14" min, artificials only; brook-trout C&R waters (South Pine, Pine Spring, Casey Springs, Falcon Springs). Regs apply by segment — check posted signs.

Records — Iowa: 19 lb 8 oz (19.50 lb), 35", Jack Renner, French Creek, Allamakee Co., July 1 1984 (almost certainly an escaped brood fish gorging in fertile spring water). US (largest US-caught rainbow/steelhead): 42 lb 3 oz, David White, Bell Island, AK, 1970 (longtime IGFA record before Diefenbaker). IGFA world: 48 lb 0 oz, Sean Konrad, Lake Diefenbaker, Saskatchewan, Sept 5 2009 — a triploid fish-farm escapee; record stands but widely asterisked. Three different fish.

Record baits — World (Konrad 48): casting a Rapala Jointed X-Rap (X-Rap Jointed Shad), 14-lb braid, at night — spinning tackle. US/AK (White) poorly documented. Iowa (Renner) undocumented ("Other").

Current tactics (spinning) — Rod/line: 5'6"–6'6" ultralight, 2–4 lb fluoro or 6-lb braid w/ 4-lb fluoro leader. Inline spinners = #1 searcher: #0–#2 Panther Martin (gold/black, yellow-red), Mepps Aglia #0–#1 (silver stained / gold clear), Rooster Tails 1/16–1/8 oz; cast up-and-across, retrieve just fast enough to keep the blade turning, swing past seams/undercut banks/pool heads. Small spoons: 1/12–1/6 oz Kastmaster, Little Cleo, Thomas Buoyant on brood holes & community lakes. Micro plastics/jigs: 1/32–1/16 oz marabou/tube (pink/white/olive) under a small float — top winter presentation. Bait (where legal): half nightcrawler or wax worm on #10 w/ one split shot, natural drift; PowerBait/Gulp eggs off bottom on a light slip rig for fresh stockers; single salmon eggs in fall. Follow the DNR stocking calendar (hit the pool 2–5 days later as fish spread).

Sources — iowadnr.gov trout-fishing; 2026 Iowa Fishing Regs (26IAFW_LR.pdf); community trout stocking schedule; iowadnr.gov Oct 2025 stocking release; masterangler 4769; statefishrecords.com; landbigfish.com; wired2fish.com; FishIowa South Bear Creek; fieldandstream.com

Overview & ID — The bowfin (Amia calva), locally "dogfish," is an ancient, air-breathing predator with a long, undulating dorsal fin running most of the back, a rounded tail, a tubular body, and a bony, sharp-toothed mouth; mature males show a distinctive black ocellus (eyespot) ringed in yellow-orange at the upper base of the tail. It gulps atmospheric air through a modified swim bladder and survives low-oxygen or nearly dry conditions for days.

Iowa presence & top waters — Somewhat localized. Found mostly in the sloughs, oxbows, backwaters, and overflow ponds of the Mississippi River border pools (Pools 9–19, including Pool 10 backwaters near Lansing/McGregor), where quiet, weedy water dominates. Also in Missouri River backwaters along the western border; inland, largely confined to southeastern Iowa's lower Iowa and Cedar river drainages. Rare in most interior streams and natural lakes.

Average & trophy size — Most Iowa bowfin run ~18–26 in / 2–6 lb; fish of 6–8 lb are big. A trophy is generally over ~8–10 lb (28+ in). The Iowa record is 11.69 lb, so a double-digit bowfin here is genuinely exceptional.

Spawn — Spring, typically April into May (peaking in May in Iowa), triggered as shallow water warms into roughly the low-to-mid 60s°F (~60–66°F). The male builds a saucer-shaped nest by clearing vegetation in shallow, quiet, weedy bays and backwater margins, then aggressively guards the adhesive eggs and, after hatching, herds the dense black school of fry until they disperse.

Best time of day/night — Spring: midday through evening as shallows warm, with cruising spawners and nest-guarding males aggressive in skinny water. Summer: low-light dawn and dusk are best, and night fishing is productive on shallow flats a foot or two deep (watch for fish rolling to gulp air). Fall: afternoons on warming days. Winter: slow but possible in the warmest backwater holes.

Lunar/solunar influence — Bite improves during solunar major/minor periods and the low-light windows of dawn/dusk; new- and full-moon days are generally favored. Because bowfin are shallow-water ambush feeders tied to warmth and cover, water temperature and light level typically outweigh precise moon timing.

Weather & barometric patterns — As facultative air-breathers tolerant of low oxygen and warm, stagnant water, bowfin are less sensitive to falling pressure and oxygen crashes than most gamefish, so they keep feeding when other species shut down before a front. Warm, stable or warming spells and warm rain that pushes them shallow are prime. On rivers, a moderate spring rise that floods backwater vegetation concentrates and activates fish, while high, muddy floodwater with strong current scatters them; they favor slack, protected backwater out of the main flow.

Iowa legal (2026) — Bowfin ("dogfish") are classified as rough fish: a valid Iowa sport license is required (16+); no closed season, no minimum length, no daily bag or possession limit (confirmed). May legally be taken by hook-and-line, snagging, spearing, and bow fishing — bowfin appear explicitly on Iowa's list of species allowed by snagging/bow/spear. Night fishing and bowfishing are permitted year-round. Bowfishing/snagging is prohibited within posted no-shooting zones and near dams/spillways/fish barriers (generally within ~300 ft). Any game fish struck or hooked incidentally must be released immediately. Border waters (Mississippi, Missouri, Big Sioux): a valid license from either bordering state is generally honored under reciprocity; boundary-water trotline rules (up to four trotlines/200 hooks combined, no sale of fish) apply. (Iowa DNR: iowadnr.gov/things-do/fishing/regulations-laws.)

Records - (a) Iowa state record: 11.69 lb, 31.5 in, Bill Greten, Pool 10, Mississippi River, May 1, 1994. Bait not documented. - (b) US/national record: the same fish as the IGFA world record below (South Carolina, 1980). - (c) IGFA all-tackle world record: 21 lb 8 oz, Robert L. Harmon, Forest Lake near Florence, South Carolina, January 29, 1980. Bait not documented. (The famous ~21-lb SC record — US national and IGFA world record are the same fish.)

What the records were caught on — Specific bait/method for both the Iowa record (Greten, 1994) and the IGFA world record (Harmon, 1980) is not documented — treat as unknown. Large bowfin of that era were most often taken incidentally on cut/live bait near backwater cover — inference, not documented fact.

Current successful tactics — Rod-and-reel: cut bait is the most consistent producer (bowfin hunt largely by scent) — fresh chunks of shad, sucker, bluegill (grocery tilapia/shrimp as backup) on the bottom or under a slip-float over/near weedy backwater. Common rig: slip-float above a barrel swivel and a 16–18 in 40-lb fluorocarbon leader to a 2/0–3/0 baitholder or circle hook (leaders often need replacing after each fish due to teeth). They also hit artificials aggressively: soft-plastic flukes and worms, chatterbaits/spinnerbaits (strong in summer), lipless and bladed baits, topwater frogs over spawning shallows in spring. Use stout tackle — 7-ft MH fast rod, 2500–3500 spinning or small baitcaster, 30–40 lb braid — and land with a net plus fish grips (keep fingers clear of the jaws; they thrash long after landing). Bowfishing: a legal and popular target in Mississippi/Missouri backwaters — stalk shallow, clear weedy flats by day or use lights at night (legal year-round), watching for nest-guarding males in spring or cruising fish gulping air. Seasonal pattern: warming spawning shallows/nest-guarders in spring, low-light and night shallows in summer, warm afternoons in fall.

Sources - Iowa DNR Fish Iowa (BOW): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/BOW - Iowa DNR State Records: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa eRegulations (snag/bow species list, border waters): https://www.eregulations.com/iowa/fishing/general-fishing-regulations - Outdoor Life (IGFA world record Harmon): https://www.outdoorlife.com/fishing/new-york-state-record-bowfin/ - MeatEater (tactics/rigs): https://www.themeateater.com/fish/freshwater/the-beginners-guide-to-bowfin-fishing - NC Wildlife (ID, ocellus, air-breathing): https://www.ncwildlife.gov/species/bowfin

Flags: image verified HTTP 200. No bait documented for Iowa or IGFA world/US record. Spawn-trigger temp reflects general biology/angler consensus, not an Iowa-specific published figure.

Overview & ID — Bigmouth buffalo (Ictiobus cyprinellus), the largest sucker in North America, has a large, oblique, forward-facing terminal mouth (a mid-water filter-feeder), a deep coppery-to-bluish body, and 60+ gill rakers; smallmouth buffalo (Ictiobus bubalus) has a small, sub-terminal (downturned) mouth, a more compressed, high-arched "humpbacked" profile, and paler silvery-blue sides. Both are often confused with common carp but lack barbels and the serrated dorsal spine.

Iowa presence & top waters — Found through most of Iowa (bigmouth absent only from the Nodaway drainage), most abundant in big rivers: the Mississippi (Pool 9 and Pools 12–19 backwaters), the Missouri, and larger tributaries — the Des Moines, Cedar, Iowa, Wapsipinicon (Troy Mills–Oxford Junction reach), and Big Sioux. Also in river impoundments like Lake Manawa (Council Bluffs) and some natural lakes (Spirit, East/West Okoboji).

Average & trophy size — Bigmouth: typically 15–27 in / 2–14 lb, commercial fish over 40 lb; trophy 20 lb+, giants 30–40 lb+ (Iowa record 64+ lb). Smallmouth: similar (about 18 in by age 6; commonly 3–15 lb); trophy 20 lb+, exceptional 30–40 lb+ (Iowa record 43 lb). A 20-pounder is a legitimate trophy; 30 lb+ is a fish of a lifetime on rod and reel.

Spawn — April–June. Bigmouth begins near 60°F (typically April); smallmouth slightly later (late April–June) at 60–65°F. Both broadcast-spawn in large shallow schools — bigmouth over flooded vegetation in ~2–3 ft (a female surrounded and pushed upward by several males releasing adhesive eggs); smallmouth over gravel/sand bars in ~4–10 ft. Most mature by age 3. Rising, warming spring water into flooded backwaters is the key trigger.

Best time of day/night — Spring spawn is the most catchable window (fish concentrate in accessible shallows). In warm months, feeding peaks in low light — early morning and evening/dusk; midday slow in clear water; summer heat pushes feeding into the night. For bowfishing, sunny calm daylight (visible shallow fish, spring–early summer) and night with high-output lights both work. Cold-water winter catches are incidental (Iowa's smallmouth record came in December).

Lunar/solunar influence — Species-specific data is thin; treat like carp. Best windows align with dawn/dusk and the major/minor solunar periods, with a warming, stable stretch mattering more than moon phase. During the spring spawn, bright full-moon nights concentrate fish in the shallows (good for night bowfishing). Low-confidence, extrapolated from carp behavior.

Weather & barometric patterns — Extremely hardy (tolerating <1 ppm dissolved oxygen and water over 90°F), so they keep feeding in warm, turbid, low-oxygen conditions that shut down gamefish. Best hook-and-line feeding on stable or slowly falling pressure and warming spring/early-summer trends. River stage/current is dominant: moderate rising flows and spring pulses move fish into flooded backwaters and vegetation; extreme muddy floodwater scatters them and ruins bowfishing visibility; a falling/stabilizing stage concentrates fish in current seams, deep holes, and backwater edges. Post-frontal bluebird highs slow the bite.

Iowa legal (2026) — Classified as nongame ("all other fish"): continuous open season, no minimum length, no daily bag or possession limit (Iowa DNR / eRegulations). Takeable by hook-and-line, bow and arrow, and snagging where permitted. Bowfishing: legal year-round, day and night, no size or bag limit; valid sport license required (16+). Border-water reciprocity: on boundary waters (Mississippi with WI/IL/MN; Missouri and Big Sioux with NE/SD/MO), a valid license from either bordering state generally lets you fish the shared water, but follow the regulations of the state whose water you are in. Conservation note: buffalo are commercially harvested on the Mississippi and Missouri; recent longevity/recruitment research (below) shows unlimited bowfishing/harvest is biologically risky for this long-lived genus — a concern scientists have flagged, though Iowa currently imposes no protective limits.

Records - (a) Iowa state records: - Bigmouth buffalo: 64.38 lb, Lake Manawa, April 18, 2007, Ronald Anderson; bait not documented. - Smallmouth buffalo: 43.00 lb (36 in), Wapsipinicon River (Troy Mills–Oxford Junction), December 1, 2021, John Dirks; bait not documented. - (Bonus — black buffalo, I. niger: 63.38 lb, Pool 9 Mississippi, 1999, Jim Winters.) - (b) US national record: the IGFA all-tackle records below are the recognized US/national rod-and-reel records (both caught in the US). - (c) IGFA all-tackle world records: - Bigmouth buffalo: 70 lb 5 oz (31.89 kg), Bastrop, Louisiana, April 21, 1980, Delbert Sisk (no bait listed). Disputed: heavier bigmouth (~76–87 lb) from the Wisconsin River appear in alternative registries via bowfishing/"other methods" — not the IGFA rod-and-reel all-tackle record. - Smallmouth buffalo: 82 lb 3 oz, Athens Lake, Texas, 1993 (no bait listed). Uncertain: angler name inconsistently reported across secondary sources, not confirmed against IGFA — flagged. - Same-fish note: none of the world/US records are Iowa fish. The bigmouth and smallmouth world all-tackle records are the de facto US national records (same fish), but Iowa's state records (64.38 / 43.00 lb) are separate, smaller fish. - Longevity research (notable): bomb-radiocarbon/otolith work led by Alec Lackmann (2019, Communications Biology) documented bigmouth buffalo well over 100 years old (to ~112 years), shattering the old ~26-year estimate; a 2024 Scientific Reports study at Minnesota's Rice Lake found >95% of the population hatched before the 1960s — a ~50–60-year recruitment gap underscoring the harvest-risk concern.

What the records were caught on — Bait/method is not documented for the Iowa bigmouth (Lake Manawa 2007), the Iowa smallmouth (Wapsipinicon 2021), or the IGFA all-tackle entries for either species. The Iowa smallmouth's December timing and hook-and-line category imply a bottom presentation, but the specific bait is unverified — flagged rather than guessed.

Current successful tactics — Buffalo are notoriously hard to hook (they inhale and expel food with sediment — subtle, finicky bites), so a carp/European approach wins: corn, bread flake/punch, dough balls, pack bait (rolled oats + cream-style corn + calf manna, sometimes cinnamon-scented), plus boilies and particles (tiger nuts, maple peas). Use a hair rig or blowback rig and method/pack feeders, with a sensitive tip/bite alarm. Prebaiting for days or weeks is decisive to hold a school; target backwaters, current seams, deep holes, and flooded margins. Spring (spawn) and early summer in the shallows are most catchable; summer is a low-light/night game; expect a hard, dogged fight. Bowfishing is the primary reliable harvest method — shallow spawning schools in spring/early summer on calm sunny days, or at night under lights; aim low for refraction. No size/bag limit, but selective harvest is the ethical call given the longevity/recruitment concerns.

Sources - Iowa DNR State Records: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa DNR Fish Iowa (BGB): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/BGB - Iowa DNR Fish Iowa (SAB): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/SAB - Iowa eRegulations Seasons & Limits: https://www.eregulations.com/iowa/fishing/fishing-seasons-and-limits - Wikipedia Bigmouth buffalo: https://en.wikipedia.org/wiki/Bigmouth_buffalo - IGFA smallmouth buffalo record: https://igfa.org/member-services/world-record/common-name/Buffalo,%20smallmouth - UMN Duluth longevity research: https://d.umn.edu/news/research-brief-50-year-generation-gap-minnesotas-longest-lived-fish - Scientific Reports (2024): https://www.nature.com/articles/s41598-024-70237-5 - USGS NAS: https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=362

Flags: image not byte-verified (Wikimedia cache-only); bigmouth world record disputed by heavier bowfishing fish; smallmouth world-record angler name unverified; no bait documented for any record.

Overview & ID — The common carp (Cyprinus carpio) is a large, heavy-bodied minnow with brassy-olive to golden sides, large diamond-shaped scales (each with a dark basal spot), a stout serrated spine at the front of the dorsal and anal fins, and two pairs of barbels at the corners of a downturned, protrusible mouth.

Iowa presence & top waters — Iowa DNR calls carp "one of the most abundant and widely distributed fish in Iowa," present in nearly every stream, river, natural lake, and impoundment except coldwater trout streams. Top big-carp water is the Mississippi River (Pools 9–19, e.g., Lansing, Guttenberg, Dubuque, Bellevue backwaters) and the Missouri River. Strong interior populations in the Des Moines, Cedar, Iowa, Raccoon, Wapsipinicon, and Skunk. Productive lakes: Spirit, West/East Okoboji, Clear Lake, Storm Lake, plus reservoirs Saylorville, Red Rock, Rathbun, Coralville, and Glenwood Lake (state-record water). (Note: Bacon Creek Lake, Sioux City produced a recent IGFA grass carp line-class record — a different species.)

Average & trophy size — Typical fish 1–8 lb / 12–24 in. A solid fish is 10–20 lb; a genuine Iowa trophy is 20+ lb (roughly 30–35+ in), with 30-lb-plus fish rare and exceptional.

Spawn — Mid-April through June, triggered as water warms into the 60s°F (generally begins ~62–65°F, intensifying into the upper 60s–70s). Fish move into shallow (1–4 ft), warm, weedy or flooded backwater/shoreline, where a female is chased by several males, thrashing loudly at the surface, broadcasting eggs over vegetation (a big female can release 500,000+). Carp ignore bait mid-spawn — target just before or after.

Best time of day/night — Spring: midday/afternoon as shallows warm. Summer: strongly bimodal — first hours after sunrise and last hours before sunset, plus productive night fishing in warm weather; midday fish push deeper/shaded. Fall: warming midday hours on settled weather. Winter: slow, best in the warmest afternoon.

Lunar/solunar influence — Solunar surges track major/minor periods around moonrise/moonset and sunrise/sunset. New and full moons are generally most productive, the full moon notably boosting nocturnal feeding. A tiebreaker layered over water temp and weather.

Weather & barometric patterns — Carp feed hard on stable or slowly falling pressure; a sharp drop / cool-front arrival often sparks a strong pre-front burst, while bluebird post-front high slows it. Warm, overcast, humid days are reliable. On rivers, rising/stable moderate flow after rain colors water and pushes food, concentrating carp in slack water, eddies, and seams behind cover; hard flood/blown-out current scatters fish, and dropping/clearing water afterward can be excellent.

Iowa legal (2026) — Classified as rough/nongame: continuous open season, no minimum length, no daily bag or possession limit (confirmed). Valid Iowa license required; carp may be taken by hook-and-line, snagging, bowfishing, and spearing. Gear rule: no hook larger than a 5/0 treble or exceeding 1¼ in. Snagging is prohibited in numerous designated stretches (portions of the Des Moines, Cedar, Iowa rivers and below several dams) — check current closed zones. Border waters: reciprocal agreements on the Mississippi (WI/IL/MN/MO) and Missouri (NE/SD/MO) honor either state's license; carp remain unlimited. Verify closed-snagging areas and reciprocity annually (iowadnr.gov).

Records - (a) Iowa state record: 50 lb 0 oz, Fred Hougland, Glenwood Lake, April 1, 1969. Bait not documented. - (b) US/national record: most-cited is 61.5 lb, Dale E. France, Wolf Lake, Michigan, 1905 — old, weakly documented, frequently disputed; treat as uncertain. There is no cleanly defined modern US record. - (c) IGFA all-tackle world record: 75 lb 11 oz (34.35 kg), Leo van der Gugten, Lac de Saint-Cassien, France, May 21, 1987. (Larger 90–100+ lb carp at commercial venues like Euro-Aqua, Hungary, are not IGFA all-tackle records.) - Same-fish note: No — Iowa, US, and world records are three different fish.

What the records were caught on — No documented bait for the Iowa (1969) or historic US (1905) records. The IGFA world record (Saint-Cassien, 1987) came on European big-carp tackle during that reservoir's peak boilie/bottom-bait era. (Distinct: the 2025 IGFA grass carp 30-lb line-class record, 71 lb 8 oz, Jakob Mackey, Bacon Creek Lake IA, on standard carp gear — a different species.)

Current successful tactics — The dominant modern method is the hair rig on a bottom or method/pack-feeder presentation with an inline lead. Everyday-productive baits: sweetcorn (single kernels, kernel stack, or plastic corn), boilies (15–20 mm fruit/fishmeal, matched with free offerings), homemade dough/paste and packbait (cornmeal, creamed corn, breadcrumb, molasses), hempseed/particle beds, and bread (flake or punch) on surface or bottom. Prebaiting a spot for a day or two sharply raises catch rates. Use a method feeder or PVA bag for a tight feed bed; heli rigs over silt; zig rigs or floating dog biscuits/bread for fish feeding up in warm weather. Seasonally: warming shallow flats midday in spring, dawn/dusk/night over feed in summer, warmest afternoon windows in fall. Bowfishing: legal with a sport license and hugely popular — shoot shallow spawning/feeding flats (April–June prime) and river backwaters, day or night with lights. Respect closed-snagging areas and border-water rules.

Sources - Iowa DNR State Records: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa DNR Fish Iowa (CAP): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/CAP - Iowa DNR Regulations: https://www.iowadnr.gov/things-do/fishing/regulations-laws - Iowa eRegulations: https://www.eregulations.com/iowa/fishing/general-fishing-regulations - Wired2Fish (Bacon Creek grass-carp record): https://www.wired2fish.com/news/iowa-angler-sets-igfa-carp-record-at-bacon-creek-lake - Hooked In Fishing (carp records): https://hookedinfishing.com/freshwater-species/common-carp/common-carp-records/ - Wikipedia: https://en.wikipedia.org/wiki/Common_carp

Flags: image not byte-verified (Wikimedia cache-only); US "record" (1905) is disputed/uncertain; no bait documented for Iowa or historic US record.

Overview & ID — The freshwater drum (Aplodinotus grunniens), locally called sheepshead, gaspergou, or "grunter," is a deep-bodied, hump-backed silvery fish with a subterminal (down-turned) mouth and a lateral line that runs all the way through the tail — the only North American freshwater fish that does so; males "drum" or grunt using muscles against the swim bladder, and the head contains large L-shaped ear-stones (otoliths, "lucky stones").

Iowa presence & top waters — Abundant and widely distributed, heaviest in the big border rivers: the Mississippi River (Pools 9–19 — backwaters, wing dams, and tailwaters below Lock & Dam structures) and the Missouri River with its oxbows, sloughs, and chutes. Common in larger interior rivers — the Des Moines, Cedar, Iowa, Skunk, and Wapsipinicon — and in big natural lakes and impoundments: Spirit Lake, West/East Okoboji, Clear Lake, Rathbun, Saylorville, Red Rock, and Coralville. Least common in cold northeast-Iowa interior streams.

Average & trophy size — Typical Iowa drum run about 10–17 in and 1–5 lb, river fish generally smaller than lake/reservoir fish. Fish of 5–10 lb are solid; a trophy is generally 10 lb+ (roughly 25+ in), and anything over 15 lb is exceptional. The species can rarely exceed 30 lb.

Spawn — Iowa drum spawn in open water during May and June, triggered near 66–72°F (some spawning begins ~65°F, extending into July farther south). Broadcast/pelagic spawners: females release buoyant eggs into open water with no nest or parental care, and the fertilized eggs and larvae float at the surface — unusual among North American freshwater fish. Males grunt to attract mates; concentrations form over open flats and near current in the big rivers.

Best time of day/night — Bottom feeders that bite best in low light — dawn, dusk, and well into the night, especially in summer. Post-spawn (May–June) and early summer offer the most consistent daytime action; midsummer favors evening/night bites in warm, turbid water (drum tolerate low oxygen and keep feeding when other species slow); fall produces good daytime feeding; catchable under ice in lakes.

Lunar/solunar influence — No Iowa-specific study, but feeding intensifies around major/minor solunar periods and near the new and full moons, when gravitational influence and low light overlap. Dawn/dusk windows aligning with a major solunar period on a new- or full-moon day are considered prime; bright full-moon nights can extend the nocturnal bite. Secondary to water temp, current, and forage.

Weather & barometric patterns — Hardy bottom feeders, less pressure-sensitive than gamefish, but a falling barometer ahead of a front and stable low pressure trigger the strongest feeding, while a sharp post-front high slows it. On rivers, stage and current dominate: a rising or moderately high, slightly stained river with good current concentrates drum below wing dams, at current seams, scour holes, and tailwaters. Extreme flood/muddy blowouts and rapidly dropping water shut it off; best windows are stable-to-rising flows with moderate clarity, water in the 60s–70s°F.

Iowa legal (2026) — Under IAC 571 Ch. 81 (eff. 01-07-2026), freshwater drum is not a listed/regulated species, so it falls under "all other fish": continuous (year-round) open season, no minimum length, no daily bag, no possession limit (confirmed — no limits). Border waters: on the Mississippi a valid Iowa hook-and-line license is honored under reciprocity (hook-and-line only); on the Missouri reciprocity also allows spearing and archery, so drum may legally be bowfished/speared there. Follow the most restrictive rule for the specific water. (Iowa DNR; IAC 571-81.)

Records - (a) Iowa state record: 46 lb 0 oz (~38.5 in), R. F. Farran (DNR pages vary between "Farran"/"Farren" — disputed spelling), Spirit Lake, October 1, 1962. Bait/method not documented. - (b) US national record: the same fish as the IGFA world record below (Nickajack Lake, TN, 1972). - (c) IGFA all-tackle world record: 54 lb 8 oz (24.72 kg), Nickajack Lake, Tennessee, 1972; angler commonly cited as Benny E. Hill (secondary-source name, not confirmed against IGFA's own listing — flagged). No documented bait. - Same-fish note: the US national and IGFA world records are the same fish (Nickajack, 1972). Iowa's 46-lb Spirit Lake fish (1962) is a separate, smaller fish.

What the records were caught on — Neither the Iowa (Spirit Lake, 1962) nor the Nickajack world/US (1972) record has a documented bait; these are genuinely undocumented rather than known. Spirit Lake drum of that era were typically taken bottom-fishing worms/cut bait or trolling — inference only.

Current successful tactics — Simple bottom presentations dominate. Best natural baits: nightcrawlers (top producer), crayfish, cut bait/shad, mussel or shrimp, on a slip-sinker (Carolina) or three-way/bottom rig with a #4–1/0 hook and ½–2 oz weight to hold in current. On rivers, target wing dams, current seams, scour holes, riprap, bridge pilings, and dam tailwaters; a rising/stained river with steady flow is prime. In lakes (Spirit, Okoboji, Rathbun, Saylorville), work deeper flats, drop-offs, and mud/rock transitions, best at dawn, dusk, and after dark in summer. Drum also hit artificials — jigs with plastics/crawler, blade baits, small cranks, spoons, swimbaits bounced on bottom (often caught incidentally by walleye/smallmouth anglers). Bowfishing is popular and legal on the big rivers given the no-limit status.

Sources - Iowa DNR State Record Fish: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa DNR Fish Iowa (FRD): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/FRD - IAC 571 Ch. 81 (eff. 01-07-2026): https://www.legis.iowa.gov/docs/iac/chapter/01-07-2026.571.81.pdf - Iowa boundary-state agreements: https://www.eregulations.com/iowa/fishing/license-agreements-with-bordering-states - IGFA World Records: https://igfa.org/world-records/ - Wikipedia: https://en.wikipedia.org/wiki/Freshwater_drum - roughfish.com: http://www.roughfish.com/freshwater-drum - Minnesota DNR: https://www.dnr.state.mn.us/fish/freshwaterdrum.html - USFWS: https://www.fws.gov/story/freshwater-drum-great-grunting-gaspergoo

Flags: image not byte-verified (Wikimedia cache-only); Iowa angler surname Farran/Farren inconsistent across DNR pages; IGFA world-record angler name from secondary sources; no bait documented for Iowa or world/US record.

Overview & ID — The lake sturgeon (Acipenser fulvescens) is a primitive, shark-shaped bottom-dweller with a cartilaginous skeleton, a rounded conical snout with four fleshy barbels, five rows of bony scutes, and a heterocercal tail; young are tan with dark blotches, adults slate-gray to black above and pale below. It is North America's largest native freshwater fish and among the longest-lived (females 80–150 years).

Iowa presence & top waters — Iowa's core population is in the Mississippi River (notably Pools 16–19), where the species is native. The DNR also documents lake sturgeon in major interior tributaries — the Cedar, Iowa, Des Moines, Maquoketa, and Big Sioux — a distribution supported by decades of restoration/reintroduction stocking. Natural reproduction has been documented on the Upper Iowa River near Decorah (a spawning adult captured May 5), a hopeful sign reintroduced fish are spawning. Populations remain sparse and localized. (Note: pallid and shovelnose sturgeon also occur in these rivers and are frequently confused with lake sturgeon — recent Des Moines River sturgeon news actually concerned pallid sturgeon.)

Average & trophy size — Most Iowa/Upper Mississippi fish run ~30–55 in / 5–40 lb. The species commonly reaches 4–6 ft; the largest documented in Iowa was ~100 lb. Range-wide they exceed 7 ft and 200+ lb (max ~7.25 ft / 240 lb). Given slow growth (females mature at ~24–26 years / ~55 in), a 50-in-plus fish is a genuine trophy, and anything over 6 ft / 100 lb is a true giant likely 80–100+ years old.

Spawn — April–June, triggered as water warms into 55–64°F (Iowa references cite eggs hatching in ~8 days at ~55°F). Adults migrate to fast, rocky riffle/rubble areas — classically dam tailwaters and clean gravel/cobble shoals in current — where females broadcast up to ~700,000 adhesive eggs. Females spawn only every 4–6 years; males roughly annually to every other year, making the spawning population small and vulnerable.

Best time of day/night — Feed heavily in low light and after dark. In spring the daytime bite is strong during the migration/pre-spawn push; through summer, night and dawn/dusk are most productive as fish move shallower after dark; in fall a second feeding surge occurs, again best at dawn, dusk, and into the night. Midday can produce in deeper holes, especially in high, stained water.

Lunar/solunar influence — Little species-specific research; river conditions (stage, flow, temperature) drive the bite far more than moon phase. General solunar principles apply loosely (majors around moonrise/moonset and dawn/dusk minors overlap preferred low-light windows; many favor days around new/full moon). A minor tiebreaker — a rising river at the right temperature out-fishes a "good moon" on flat water.

Weather & barometric patterns — Often bites best in high, rising, even muddy water — conditions that shut down sight-feeders. Sturgeon rely on barbels, smell, and electroreception, so turbidity doesn't hurt them; spring high-water and post-rain bumps concentrate feeding fish in slack water. Falling pressure ahead of a front and the first hours of a rising stage are prime. Focus on current seams, back eddies, deep holes/troughs where fast surface flow rides over slower bottom current. Extreme flood or a hard bluebird lockdown are toughest.

Iowa legal (2026) — Lake sturgeon is a state ENDANGERED species in Iowa and fully protected. Harvest is prohibited — no open season, no legal size/bag, because you may not keep one at all. IAC 571.77.2(1) lists Acipenser fulvescens as endangered; Iowa regulations state you "cannot take, possess, transport, import, export, process, sell or offer for sale, buy or offer to buy" lake sturgeon. Any caught incidentally must be released immediately and unharmed — keep it in the water, support it horizontally, no shore photos. Do not confuse with the legal, separately regulated shovelnose sturgeon. Contrast: Wisconsin runs a regulated Lake Winnebago spear fishery (2026 season Feb 14–Mar 1, strict caps, mandatory tagging) plus some hook-and-line seasons; Minnesota allows tightly regulated harvest/catch-and-release on the Rainy River/Lake of the Woods. Border-water nuance: the Mississippi is shared with WI/IL and reciprocal licenses cover the whole river — but protected status is not reciprocal; a lake sturgeon on the Iowa side is protected under Iowa law, and WI's spear/harvest seasons apply only to designated Wisconsin waters, not the boundary Mississippi. When in doubt on shared water, release it.

Records - (a) Iowa state record: None exists — harvest is prohibited, so Iowa keeps no angling record. The largest documented in-state historically is ~100 lb. - (b) US/national record: no single certified US hook-and-line record (records are state-by-state; the recognized rod-and-reel world mark was set in Canada). The largest US lake sturgeon documented is a 240-lb, 87.5-in, ~125-year-old fish from the Wolf River near Shawano, Wisconsin (April 2012) — but a DNR survey capture, not an angled catch. (Popular "US record" claims vary — uncertain.) - (c) IGFA all-tackle world record: 168 lb (69 in), Georgian Bay, Ontario, Canada — May 29, 1982, Edward Paszkowski. Recognized rod-and-reel world record; not caught in the US. Iowa/US and world records are therefore not the same fish (Iowa has none, the US has no certified angling record, the world record is Canadian). - Famous giants: Ontario's Georgian Bay (168-lb IGFA record). Lake Winnebago spearers took a 212-pounder (2010) and a 177.3-lb, 79.9-in female (2023) — fish that would have topped the rod-and-reel world record. Minnesota's catch-and-release record is an estimated ~165-lb, 6.6-ft Rainy River fish (April 2026, Travis Keating), released and weight-estimated. Detroit River survey work turned up a ~240-lb, ~100+-year-old fish.

What the records were caught on — The IGFA world-record 168-pounder hit an artificial — a Mepps Aglia #3 spinner on 12-lb line — unusual for a bottom-feeder, a reminder big sturgeon chase moving prey in spring. Winnebago giants were speared through the ice (allowed only on Winnebago and Michigan's Black Lake). Minnesota/Rainy River trophies take bottom rigs baited with nightcrawler gobs (often tipped with a minnow/shiner) and are released.

Current successful tactics — In Iowa these are protected, endangered fish: any lake sturgeon must be catch-and-release only, kept wet, supported horizontally, released immediately — never targeted, never removed from the water. The effective (and legal-where-permitted) approach that also produces incidental Iowa hookups is straightforward bottom fishing: a heavy catfish/sturgeon rod, big reel with 65–80 lb braid, a no-roll or pyramid sinker (1–8 oz) above a barrel swivel, an 18-in leader, and a 5/0–6/0 circle hook. The go-to bait is a gob of 4–6 nightcrawlers, often tipped with a minnow/shiner or cut bait; cut sucker/shad also works. Fish it on the bottom in deep holes, current seams, and back eddies below dams and wing dams, anchoring just upstream. Bites feel like light "pecks" — with circle hooks, let the fish load the rod. Seasonally: spring pre-spawn (April–early May) around tailwaters and rising water is best; summer favors after-dark holes; fall gives a second window. Plan your release before you cast.

Sources - Iowa DNR Fish Iowa (LAS): https://programs.iowadnr.gov/lakemanagement/FishIowa/FishDetails/LAS - IAC 571.77.2 (endangered list): https://www.legis.iowa.gov/docs/ACO/rule/571.77.2.pdf - Iowa eRegulations: https://www.eregulations.com/iowa/fishing/general-fishing-regulations - Upper Iowa River (natural reproduction): https://upperiowariver.org/lake-sturgeon-upper-iowa-river/ - Wikipedia: https://en.wikipedia.org/wiki/Lake_sturgeon - Field & Stream (MN record): https://fieldandstream.com/stories/fishing/minnesota-record-lake-sturgeon - WI DNR (Wolf River giant): https://dnr.wisconsin.gov/newsroom/release/117861 - MN DNR (how to catch): https://www.dnr.state.mn.us/gofishing/how-catch-lake-sturgeon.html

Flags: image verified HTTP 200. No Iowa angling record exists (protected). "US record" claims are uncertain/unstandardized; the 240-lb WI fish was a survey capture, not angled.

Overview & ID — The longnose gar (Lepisosteus osseus) is an elongate, cylindrical "living fossil" with an olive-to-dark-green back, silvery-white belly, diamond-shaped ganoid scales, and dark spots on the rear fins; its signature is an extremely long, narrow, tooth-lined beak 15–20 times longer than wide — the quickest way to separate it from the shortnose gar, whose snout is distinctly shorter and broader.

Iowa presence & top waters — The most widely distributed gar in Iowa, concentrated in big rivers and connected backwaters. Best bets: the Mississippi River (pools, backwaters, sloughs, wing dams, weed lines — e.g., the Lake Odessa complex near Wapello) and the Missouri River (Council Bluffs to the Missouri/Nebraska line — state-record water). The Des Moines (lower reaches and around Lake Red Rock), Cedar, and Iowa rivers all hold fish, becoming scattered in smaller interior streams. Northwest natural lakes — Spirit, East/West Okoboji — carry populations in weedy bays.

Average & trophy size — Typical Iowa fish 24–40 in / 2–8 lb. A quality fish is 40 in+; a genuine trophy is 45+ in and/or double digits (10 lb+). Maximum size in Iowa approaches 56 in and low-20-lb class; they live ~20–30 years.

Spawn — May into June, triggered near 68–72°F (~70°F). Gar move onto shallow, weedy or gravelly flats, sloughs, and flooded vegetation, often at tributary mouths and backwaters. Broadcast/group spawners: several males crowd a larger female and adhesive greenish eggs are scattered over plants/rock (eggs are toxic to predators). Big females push shallow and become vulnerable to anglers and bowfishers.

Best time of day/night — Low-light windows are best. Spring/summer: early morning and the last hours before dark, with overcast days extending the bite through midday. Warm summer afternoons/evenings are excellent for sight-fishing surface-gulping gar in the shallows; gar stay active after dark (why night bowfishing is a core tactic). Fall: focus midday as fish stage in deeper holes.

Lunar/solunar influence — Strongly light- and temperature-driven, so solunar timing is a secondary refinement. Best pattern is the overlap of solunar major/minor periods with dawn and dusk — fish those combined windows first. Bright moonlit nights keep surface-feeding/bowfishing going later; dark-of-the-moon nights concentrate fish in bowfishing lamplight. Around the spawn, the ~70°F warming trigger overrides moon phase. (Angler-consensus patterns; little species-specific data.)

Weather & barometric patterns — Stable warm weather and the falling barometer just ahead of a front fire up feeding; a sharp post-front bluebird cool-down slows it. On rivers, stage and current matter more than pressure: high muddy floodwater scatters fish, but a falling, clearing river after a rise is often excellent because gar pull into predictable slack water, backwater mouths, eddies, and current seams behind wing dams and log jams. Warming, stabilizing water in a rising-then-steadying spring river is the classic pre-spawn/spawn window.

Iowa legal (2026) — Classified as rough/nongame: continuous open season, no daily bag, no possession limit, no length limit (confirmed). Valid Iowa license required (16+). Takeable by hook and line, snagging, spearing, and bow and arrow. Gear rules apply (hooks not exceeding a 5/0 treble or 1¼ in); bowfishing legal day or night year-round, but not within 300 ft of dams/fish barriers/no-shooting zones. On the Mississippi and Missouri border waters, a valid Iowa license lets you fish Iowa's shared water, but know which state's water you're in and follow its rules (bowfishing hours/light rules differ by state). (Iowa DNR / eregulations.com/iowa.)

Records - (a) Iowa state record: Marvin Watts of Modale, Missouri River (Council Bluffs–state line), Pottawattamie County, May 2025, by bow and arrow. Weight discrepancy — flagged: multiple news reports and the DNR "Fish Iowa" page list 24.1 lb, 56.5 in (beating the prior ~22.2-lb record by 1.9 lb), while the DNR master State Record Fish table currently shows 22.20 lb (May 17, 2025). The two DNR pages disagree — verify with DNR before citing as definitive. - (b) US/national record (rod & reel): the same fish as the IGFA all-tackle world record below. Note the bowfishing national/world record is far larger — 56.2 lb, 63.5 in, Lake Palestine, Texas, Jacob Fischer (age 16), recognized by the Bowfishing Association of America (not IGFA). - (c) IGFA all-tackle world record: Rock Shaw, Trinity River, Texas, May 7, 2017, rod and reel. Weight listed as ~43 lb (IGFA) vs 44.50 lb (certified TX state record) — same fish, minor weigh-in variance (flagged). This became the all-tackle record after the long-standing 50 lb 5 oz fish (Townsend Miller, Trinity River, TX, 1954) was scrubbed in 2021 when IGFA reclassified it as a longnose × alligator gar hybrid. - Same-fish note: Iowa, US rod-and-reel, and world records are NOT the same fish — Iowa's is a Missouri River bow-caught fish (~22–24 lb), while the US/world all-tackle record is Rock Shaw's 2017 Texas rod-and-reel fish (~43–44.5 lb).

What the records were caught on — The Iowa state record was taken by bowfishing in the shallow Missouri River, not bait. The IGFA all-tackle record (Rock Shaw, 2017) was a rod-and-reel catch on the Trinity River. The scrubbed 1954 "record" was rod-and-reel but is now disqualified as a hybrid. The bowfishing world record (Fischer) was arrowed in shallow water at Lake Palestine.

Current successful tactics — Rod and reel: the signature gar rig is the frayed nylon rope lure — a bundle of unraveled nylon rope (no hook) that tangles in the teeth, letting you land and release fish; retrieve slowly past cruising or basking fish. Otherwise, cut bait from oily fish (shad, carp, sucker) or live bait (shiners, small sunfish) fished on the bottom or under a float in eddies, backwater mouths, and current seams is deadly. Because of the bony beak, use a wire or heavy 40–80 lb fluorocarbon leader (12–18 in) and a delayed hookset (let the gar mouth, run, and swallow before setting hard, or use a treble/circle setup to self-hook). Sight-fish surface-gulping gar in warm, calm, shallow water on sunny afternoons. Bowfishing: the dominant Iowa method for big gar — cruise shallow flats, backwaters, and the Missouri/Mississippi margins day or night, using elevated platforms and lights after dark; target basking/spawning fish in May–June when large females push shallow. Seasonally: pre-spawn/spawn (May–June, ~70°F) is the peak shallow window; midsummer favors dawn/dusk and night in slack water; fall pushes fish to deeper holes where slow bottom-fished cut bait works.

Sources - Iowa DNR State Records: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa DNR Fish Iowa (LOG): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/LOG - Iowa eRegulations: https://www.eregulations.com/iowa/fishing/general-fishing-regulations - Western Iowa Today (Marvin Watts record): https://westerniowatoday.com/2025/05/23/harrison-county-man-catches-state-record-fish-in-pottawattamie-county/ - TPWD Trinity River all-tackle (Rock Shaw): https://tpwd.texas.gov/fishboat/fish/action/alltackle.php?WB_code=1592 - Outdoor Life (bowfishing world record / IGFA rod-and-reel): https://www.outdoorlife.com/fishing/world-record-longnose-gar-texas/ - Boundless Pursuit (1954 record reclassified as hybrid): https://www.boundless-pursuit.com/post/a-fallen-record

Flags: image verified HTTP 200. Iowa state-record weight inconsistent between two DNR pages (24.1 lb vs 22.20 lb). IGFA world-record weight cited ~43 lb vs 44.50 lb for the same 2017 fish. Former 50 lb 5 oz record disqualified as a hybrid in 2021.

Overview & ID — The shortnose gar (Lepisosteus platostomus) is a slender, cylindrical, olive-to-brown gar distinguished by a short, broad, beak-like snout (snout width goes only ~6–10 times into its length), versus the very long, thin, forceps-like bill of a longnose gar; unlike spotted gar it has few or no spots on top of the head, and even small juvenile longnose gar already show a proportionally much longer, narrower snout — so snout proportion, not body length, is the reliable field mark.

Iowa presence & top waters — Native and locally common in Iowa's large, warm, slow rivers and their connected backwaters. Best waters: the Mississippi River (main-channel borders, wing-dam eddies, and especially the vegetated backwaters, sloughs, and oxbows of Pools 9–19), the Missouri River (the "Council Bluffs to state line" reach — state-record water and the premier stretch), and the lower/middle Des Moines, Cedar, and Iowa rivers with their oxbows and flood-connected sloughs. They favor quiet pools, backwaters, and oxbow lakes, tolerate turbid water better than other gar, and hold near current seams below low-head dams.

Average & trophy size — Typically 15–24 in / ~1–3 lb. A mature adult tops out around 28 in / ~4.5 lb, with exceptional fish near 30–32 in. Because this is a small gar, a trophy is realistically anything over ~28 in or ~4–5 lb, and a fish approaching or exceeding 6–8 lb is record-class — far smaller than a trophy longnose gar.

Spawn — Mid-May into July, triggered near 61–70°F (16–21°C). Females broadcast large, sticky, greenish eggs over submerged vegetation in shallow, quiet backwaters and flooded margins, attended by several males; no nest is built or guarded. Eggs are toxic to birds/mammals and hatch in ~8–9 days. Mature around age 3.

Best time of day/night — A warm-season fish; action peaks in the heat of summer (July–August). In hot weather they feed actively and can be seen rolling/gulping air at the surface midday on calm days, but the strongest feeding windows are low light — dawn, dusk, and after dark — cruising shallow backwaters and weed edges. Cool spring/fall days fish best during warmest midday hours; winter activity is minimal.

Lunar/solunar influence — Anecdotal for this species, but as crepuscular feeders their peak surface activity lines up with solunar major/minor periods tied to moonrise/moonset. Bright full-moon nights in summer are reported as good for after-dark shallow feeding and spotting/bowfishing surfacing fish; the new-moon dark concentrates feeding into the dawn/dusk edges. A secondary tie-breaker behind water temperature and river stage.

Weather & barometric patterns — Best on warm, stable, or slowly falling pressure ahead of a summer front; the bluebird high right after a cold front slows the bite. River stage matters more than pressure: a moderate rise or receding flood pushes fish up into warm, flooded backwaters, weed beds, and slack margins, and the clearing, stabilizing water after high water is prime. Extreme flood and heavy muddy current scatter them, though shortnose tolerate turbidity and low oxygen better than most fish (they gulp air via a vascularized swim bladder), so they keep feeding in warm, sluggish, off-color water when other species shut down.

Iowa legal (2026) — Gar are classed as nongame/"rough" fish: no closed season, no minimum length, no daily bag or possession limit for shortnose (or longnose) gar, by hook-and-line or by bowfishing/spearing/snagging — confirmed for 2026. Valid Iowa sport license required. Legally takeable by bowfishing, spearing/gigging, and snagging in addition to hook-and-line; for snagging/bowfishing, hooks may not exceed a 5/0 treble or 1¼ in. On the boundary waters (Mississippi, Missouri, Big Sioux), Iowa maintains reciprocity with adjoining states (WI, IL, MN, MO, NE, SD), so a valid resident license from either bordering state is generally honored — verify the specific water's rules, as some snagging-area/gear restrictions vary by section. (Confirm against the current Iowa DNR regulations booklet.)

Records - (a) Iowa state record: 8.05 lb, Jeremy Suiter, July 16, 2020, Missouri River (Council Bluffs–state line). Bait/method not documented. - (b) US/national rod-and-reel record: the same fish as the IGFA all-tackle world record below (Pittman, 2010). - (c) IGFA all-tackle world record: 8 lb 3 oz (3.71 kg), George Pittman Sr., October 12, 2010, Lake Contrary near St. Joseph, Missouri, on a dead carp bait (~10-minute fight). - Same-fish note: the US national and IGFA world all-tackle records are the same fish (Pittman, 2010). The Iowa state record (8.05 lb) is not the world-record fish, but sits within about two ounces of it. - Disputed record (flagged): a 14 lb 6 oz shortnose gar shot by bowfisherman Rich Porter at Lake of the Ozarks, Missouri (May 2022) was announced as a bowfishing "world record," but genetic testing indicated it was not a pure shortnose gar (likely a hybrid) — should not be treated as a valid species world record; it stands only (and contested) in bowfishing-association listings.

What the records were caught on — The IGFA/US all-tackle record (Pittman) was taken on cut dead carp on pole-and-line — a classic large-cut-bait approach suiting the shortnose gar's opportunistic scavenging. The Iowa state record (Suiter) has no publicly documented bait/method. The disputed 14-6 Porter fish was taken by bowfishing.

Current successful tactics — Rod-and-reel: the standout is the hookless frayed-nylon "rope lure" — a 4–6 in length of ½–⅜ in nylon rope unraveled into a fluffy tangle on a swivel; the needle teeth snag in the fibers, so no hookset is needed. Cast near surfacing fish and retrieve slowly. Alternatives: small cut bait (shad, sucker, carp chunks) or live minnows/shiners on a wire or heavy-mono leader under a float in backwaters, slack eddies, and current seams — give the fish time to chew and reposition before applying pressure (bony beak makes hooksets tough; circle hooks or wire "stinger" setups help). Focus on warm, weedy backwaters, oxbows, wing-dam eddies, and slow pools in late spring through summer, when fish stack up and roll at the surface. Bowfishing is hugely popular and effective: sight-fish surfacing and shallow-cruising gar in warm backwaters, day or with lights at night through summer; moderate-poundage bow, barbed fish points, reel, and aim low for refraction. Peak action is the hottest part of summer (often August); find fish by watching for them gulping air on calm, hot days.

Sources - Iowa DNR State Records: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa eRegulations: https://www.eregulations.com/iowa/fishing/general-fishing-regulations - Iowa 2026 regulations (PDF): https://www.eregulations.com/assets/docs/guides/26IAFW_LR.pdf - Outdoor Life (Pittman world record): https://www.outdoorlife.com/fishing/world-record-shortnose-gar-taken-in-missouri/ - Missouri DoC field guide: https://mdc.mo.gov/discover-nature/field-guide/shortnose-gar - Wikipedia: https://en.wikipedia.org/wiki/Shortnose_gar - USGS NAS: https://nas.er.usgs.gov/queries/FactSheet.aspx?SpeciesID=757

Flags: image not byte-verified (Wikimedia cache-only). No bait documented for the Iowa record. The 14 lb 6 oz "bowfishing world record" is a disputed hybrid — excluded.

Overview & ID — The shovelnose sturgeon (Scaphirhynchus platorynchus) is North America's smallest and most abundant native sturgeon: a bottom-dweller with a flat shovel-shaped snout, four fringed barbels in a straight line ahead of a toothless protrusible mouth, bony body plates, and a thread-like filament off the upper tail lobe (the "switchtail," often broken on older fish). It is easily confused with the federally endangered pallid sturgeon, but is smaller and darker, has its four barbels aligned evenly and roughly equidistant, and has a fully scaled belly (the pallid's is largely bare). Correct ID is legally critical — pallids must be released.

Iowa presence & top waters — A big-river species found only in flowing water. Strongholds: the Mississippi River (border pools 9–19, best in fast tailwaters and wing-dam fields below the Lock & Dams) and the Missouri River (Sioux City to the Missouri line). Also runs up larger tributaries: the lower Des Moines (below the Ottumwa dam — state-record water), the Cedar, the Iowa, and the Big Sioux (catch-and-release only). Dam tailraces concentrate fish during spring spawning runs.

Average & trophy size — Most rod-caught Iowa fish run 20–30 in / 2–5 lb; a 6–8 lb fish is large. Growth is slow (~27 in by age 12; fish older than 12 are rare), so length matters more than the calendar. A 30-in / 5-lb-plus fish is a genuine trophy, and upper-20-inch fish are Master Angler-worthy. The species tops out near 10–12 lb anywhere.

Spawn — May–June (peaking late May into early June), triggered near 67–70°F. Fish migrate upstream and broadcast-spawn over rock, gravel, and firm substrate in swift current, classically in fast water below dams. Females are not annual spawners (~10,000–50,000 eggs). Spawning success is best in low-water springs.

Best time of day/night — Night and low light are prime — scent-oriented bottom feeders that feed heavily after dark (both the world record and its runner-up were night catches). Best season is the spring pre-spawn/spawn (April–June) in tailwaters, with a strong secondary bite through summer into early fall on cut bait. Daylight: deeper scour holes and shaded channel edges; at night they move shallower onto flats and wing-dam washes.

Lunar/solunar influence — Modest, secondary to river conditions. As current-oriented bottom feeders they respond more to flow/stage, but solunar major/minor periods overlapping dawn, dusk, or overnight concentrate feeding, and brighter moonlit nights can extend the night bite. A tiebreaker, not a driver.

Weather & barometric patterns — River stage and current dominate. Most reliable: stable-to-slowly-falling water after a rise, moderate current, clearing (not chocolate) water — fish pull into current seams, scour holes, and wing-dam eddies to intercept drifting food. Hard muddy floods shut it off; very low clear summer water pushes fish into the deepest channel holes. Warming spring water toward the 60s°F turns them on. Holding deep and feeding by scent, they're less front-sensitive than sight feeders; stable pressure is a mild plus.

Iowa legal (2026) — Per Iowa DNR / IAC Ch. 81 (571—81.1): the shovelnose season is continuous (open year-round) statewide. Inland waters and the Mississippi River carry no length, no daily bag, and no possession limit. On the Missouri River the limit is an aggregate daily bag of 10 and possession of 20. No harvest is allowed in the Big Sioux River (pallid protection). Note: contrary to a common assumption, Iowa does NOT impose a dated open/closed harvest season for shovelnose — verified against IAC 571-81.1, the DNR regulations, and eRegulations; the only closures are the Big Sioux no-harvest and full-time protection of pallid and lake sturgeon. Pallid sturgeon is state- and federally endangered — may not be taken/possessed/transported, must be released. Roe/caviar: eggs may not be sold under a sport license; USFWS's 2010 "similarity of appearance" rule bans commercial harvest and commercial roe/caviar trade on the entire Missouri River and the Mississippi below Melvin Price L&D (Alton, IL) — that rule does not restrict sport fishing. Border-water reciprocity: the Mississippi (WI/IL) and Missouri (NE/SD/MO) follow boundary-water agreements; follow the specific limits above.

Records - (a) Iowa state record: 12.00 lb, Randy Hemm, April 1, 1974, Des Moines River (Ottumwa Dam–Farmington). Bait not documented. - (b) US/national record: no separate US body beyond IGFA; the IGFA listing serves as national/world. Note Iowa's 12-lb fish is heavier in raw weight than the current IGFA mark because state and IGFA certifications differ — not the same fish. - (c) IGFA all-tackle world record: 11 lb 13 oz (36.25 in), Kashten Gustafson (age 8), Rock River, Illinois, October 2022, on a nightcrawler, 30-lb line. (Prior marks: ~11 lb 9 oz, Montana, 2020; 10 lb 12 oz, Missouri River, Montana, 1985.) - Same-fish note: Iowa, US, and world records are three different fish. Disputed: fishing-worldrecords.com lists a larger ~14 lb 8 oz "rod & reel" Wabash River fish (1999) conflicting with IGFA's current listing — treat as unverified.

What the records were caught on — The IGFA world record hit a nightcrawler ("a big ball of worms") fished on the bottom at night on the Rock River, 30-lb line, while targeting catfish. Its near-miss predecessor (9 lb 14 oz, Rock River, 2021) took a nightcrawler on a 4/0 circle hook with a 2-oz weight, also at night. The Iowa 1974 record's bait is not on record.

Current successful tactics — Bottom, in current, with bait — a catfish-style scent game. Top baits: gobs of nightcrawlers, cut bait (shad, skipjack, chub chunks), and worm-tipped small jigs or soft plastics bounced along bottom (a 27-in Iowa Master Angler fish took soft plastic on the Cedar). Rig with a no-roll or bank sinker (2–4 oz) on a Carolina/slip-sinker or three-way rig, #1–4/0 circle/octopus hooks. Anchor up-current and fan-cast to wing-dam washes, dam tailraces, current seams, deep scour holes, and sand/gravel channel edges. Watch for the light "tick-tick" take and let circle hooks load. Best windows: spring pre-spawn/spawn (April–June) in tailwaters, and summer nights on cut bait; concentrate on stable-to-falling, moderately clearing stages.

Sources - Iowa DNR State Records: https://www.iowadnr.gov/things-do/fishing/state-record-fish - Iowa DNR Fish Iowa (SHS): https://programs.iowadnr.gov/lakemanagement/fishiowa/fishdetails/SHS - IAC 571-81.1 (Cornell LII): https://www.law.cornell.edu/regulations/iowa/Iowa-Admin-Code-r-571-81-1 - IAC Ch. 81 (2026): https://www.legis.iowa.gov/docs/iac/chapter/01-07-2026.571.81.pdf - Field & Stream (Gustafson record): https://www.fieldandstream.com/fishing/illinois-boy-catches-world-record-shovelnose-sturgeon/ - Missouri DoC shovelnose regs / pallid protection: https://mdc.mo.gov/fishing/species/shovelnose-sturgeon/shovelnose-sturgeon-regulations - Wisconsin DNR (spawning temp/behavior): https://dnr.wisconsin.gov/topic/fishing/sturgeon/shovelnosesturgeon.html - USFWS media (image): https://www.fws.gov/media/scaphirhynchus-platorynchus-1

Flags: task premise of a "dated harvest season" is incorrect — season is continuous; only closures are Big Sioux no-harvest and pallid/lake protection. A ~14.5-lb Wabash record entry is disputed. No bait documented for the Iowa record.