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Freshwater

Blue catfish

Bagre azul

Ictalurus furcatus

Guide by Captain Big Joe (Joe Arias)

Freshwater
Blue catfish (Ictalurus furcatus)

At a glance

Typical size

Most catches are smaller than the top size of about 5.4 ft (165 cm).

Depth

10–60 ft.

Best time

Evening and night are best; also after rain raises the river.

Found in

3 areas

1

Know it

Spot it, size it up and learn its habits.

Identification

Bluish-gray catfish with a deeply forked tail and a straight-edged anal fin; no spots.

Typical size

Most catches are smaller than the top size of about 5.4 ft (165 cm).

Maximum size

Up to about 5.4 ft (165 cm) long and 150 lb (68 kg). Source: FishBase

Diet

It eats small water invertebrates, clams and fishes.

Behavior

It lives in deep water of reservoirs and big rivers over mud, sand and gravel, liking clear, strong current. It rests on the bottom by day and moves into faster water at night to feed.

2

Find it

Where, when and how deep to look.

Where to find it

Found from Florida Gulf Coast, Northern Gulf (AL–TX) and Mexico Gulf Coast.

Habitat

Large rivers and reservoirs — Panhandle rivers in Florida, and big rivers across the Gulf states.

Depth

10–60 ft.

Fishing depth

Bottom of holes and channels, 5–40 ft.

Best season

All year; spring and early summer are strongest.

Best time

Evening and night are best; also after rain raises the river.

Best tides

In rivers, current seams and eddies; rising water triggers feeding.

Best weather / conditions

Warm, overcast and stable weather.

3

Bait & gear

What to tie on and what to throw.

Best bait

Fresh cut shad, skipjack herring or other oily fish.

Best artificial lures

—

Tackle setup

Medium-heavy rod with a baitcasting or spinning reel.

Hook size

2/0–8/0 circle hooks.

Line

20–50 lb mono or braid.

Leader

25–50 lb mono, 18–24 in.

4

Catch it

Step by step, from first cast to landing.

Step-by-step: how to catch it

  1. Go where it lives: Large rivers and reservoirs — Panhandle rivers in Florida, and big rivers across the Gulf states.
  2. Rig up: Medium-heavy rod with a baitcasting or spinning reel. 25–50 lb mono, 18–24 in.
  3. Pick your bait: Fresh cut shad, skipjack herring or other oily fish. Lures: —
  4. Fish it: Anchor above deep holes and current breaks and soak fresh cut bait on the bottom.
  5. Time it: Evening and night are best; also after rain raises the river. In rivers, current seams and eddies; rising water triggers feeding.
Fishing techniques

Anchor above deep holes and current breaks and soak fresh cut bait on the bottom.

BigJoe's tip

Fresher bait = more bites. Cut it right before it goes in the water.

Catch and release

Catch and release: wet your hands, keep the fish in the water when you can, and release it quickly. Use circle hooks and a dehooker.

5

Clean & cook

Is it good to eat, and how to prepare it.

Edibility

Excellent eating — one of the best-tasting fish in its range.

Cleaning

Bleed and ice it right away. Fillet, then remove the skin and any dark bloodline.

Cooking suggestions

Cook fish to 145°F (63°C) — the flesh turns opaque and flakes easily. Fry, grill, bake or blacken.

6

Stay safe & legal

Safety, rules and taking care of the fishery.

Safety warnings

Stiff, sharp spines in the dorsal and pectoral fins can cause painful wounds.

Regulations

Check FWC/state rules; many states limit large fish. A Florida fishing license is required unless you are exempt; Florida rules are set by FWC (myfwc.com). Federal waters fall under NOAA Fisheries. Other states and countries set their own limits — check before you keep fish.

Conservation

Keep only what you'll eat, release the rest quickly, and follow size and bag limits.

Where it's found

Tap an area to open its fishing map.

Sources & photo credits

Sources

  1. FishBase — Ictalurus furcatus
  2. Florida Fish and Wildlife Conservation Commission (FWC) — fishing rules
  3. NOAA Fisheries — federal rules
  4. FDA — seafood safety
  5. Photo credits