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Fish

Southern flounder

Lenguado del sur

Paralichthys lethostigma

SaltwaterBrackishFreshwater
Southern flounder (Paralichthys lethostigma)

At a glance

Typical size

12–20 in.

Depth

2–20 ft; moves offshore to spawn in late fall.

Best time

Dawn, dusk and the first hours of a moving tide are the best windows.

Found in

6 areas

1

Know it

Spot it, size it up and learn its habits.

Identification

Flat fish with both eyes on the left side, brown with faint diffuse spots (no clear eye-spots), and a big mouth with sharp teeth.

Typical size

12–20 in.

Maximum size

About 33 in and 20 lb.

Diet

Shrimp, crabs and small baitfish such as mullet, pinfish and menhaden.

Behavior

Moves with the tide between grass flats, oyster bars, mangrove edges and deeper holes; feeds hardest when water is moving.

2

Find it

Where, when and how deep to look.

Where to find it

Found from Florida Atlantic Coast, Florida Gulf Coast, Northern Gulf (AL–TX), Mexico Gulf Coast, Georgia & South Carolina and North Carolina. Muddy and sandy bottoms in bays, creek mouths, docks and rivers — it can go into nearly fresh water.

Habitat

Muddy and sandy bottoms in bays, creek mouths, docks and rivers — it can go into nearly fresh water.

Depth

2–20 ft; moves offshore to spawn in late fall.

Fishing depth

1–8 ft on flats and shorelines; 6–20 ft in channels, holes and docks.

Best season

Fishable all year in Florida and the Gulf; cold fronts push fish into deeper creeks, canals and holes in winter.

Best time

Dawn, dusk and the first hours of a moving tide are the best windows.

Best tides

A moving tide — especially the last of the outgoing and first of the incoming — is best.

Best weather / conditions

Calm to light wind for sight-fishing; a light chop helps in clear water. Fish slow after cold fronts.

3

Bait & gear

What to tie on and what to throw.

Best bait

Live mud minnows, finger mullet and shrimp.

Best artificial lures

Soft plastics on a jig head dragged slowly on the bottom; Gulp! swimming mullet.

Tackle setup

7 ft medium-light to medium spinning rod with a 2500–3000 reel.

Hook size

1/0–3/0 circle hook for live bait; 1/8–1/4 oz jig heads for soft plastics.

Line

10–15 lb braid.

Leader

20–30 lb fluorocarbon, 2–3 ft.

4

Catch it

Step by step, from first cast to landing.

Step-by-step: how to catch it

  1. Go where it lives: Muddy and sandy bottoms in bays, creek mouths, docks and rivers — it can go into nearly fresh water.
  2. Rig up: 7 ft medium-light to medium spinning rod with a 2500–3000 reel. 20–30 lb fluorocarbon, 2–3 ft.
  3. Pick your bait: Live mud minnows, finger mullet and shrimp. Lures: Soft plastics on a jig head dragged slowly on the bottom; Gulp! swimming mullet.
  4. Fish it: Drag baits slowly along drop-offs, creek mouths and dock edges; give the fish a moment before setting the hook.
  5. Time it: Dawn, dusk and the first hours of a moving tide are the best windows. A moving tide — especially the last of the outgoing and first of the incoming — is best.
Fishing techniques

Drag baits slowly along drop-offs, creek mouths and dock edges; give the fish a moment before setting the hook.

BigJoe's tip

Flounder lie buried and ambush — a slow drag along the bottom beats a fast retrieve.

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

Watch the sharp gill covers and dorsal spines; use a lip gripper or wet hands.

Regulations

Florida has a flounder size limit, bag limit and a fall closure for harvest; other states set their own. 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.

Sources & photo credits

Sources

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