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Field Guide / Saltwater Fish

Summer Flounder

Paralichthys dentatus

Also called: fluke

The fluke of the Mid-Atlantic and Northeast, a big-mouthed, left-eyed flatfish found over sand in bays, inlets, and nearshore water.

Illustration of a flat, oval, brown flatfish with several pale ringed eyespots on its body
AI-generated illustration for general reference. Fish vary in color and markings with age, location, and water, so check the identification tips below rather than relying on one picture.
Type
Bottom & Reef Fish
Typical size
1 to 5 lb; 'doormats' over 8 lb
Range
The Atlantic coast from Maine to the Carolinas
Coasts
Northeast Atlantic, Southeast Atlantic
Where
Flats & estuaries, Reefs, wrecks & jetties, Open water
Best seasons
Summer, from late spring into early fall

Note: Summer flounder rules are strict and change often, with minimum sizes and seasons. Size limits, bag limits, and seasons for this species change often, so check current state and federal rules before you keep one.

How to identify it

  • Both eyes on the left side of the body.
  • Several dark, ringed eyespots on the upper side.
  • A large mouth with sharp teeth.
  • A brown or gray body that changes to match the bottom.

Often confused with

Baits and lures

  • Live killifish and spearing
  • Strips of squid and fish
  • Bucktail jigs with a plastic or strip trailer

Techniques

  • Drift over sandy bottom with a jig and bait strip.
  • Fish channel edges, inlets, and drop-offs.
  • Bounce the bait along the bottom and set the hook after a short pause.
  • Use a long rod and plenty of lead in current.

Field notes

Fluke are aggressive ambush predators and often grab large baits. Anglers use large strips and live baits to target big fish.

Related guides

Saltwater size limits, bag limits, seasons, gear rules, and license requirements change often and differ by state and in federal waters. Some species are catch-and-release only or closed in certain areas. Check your state's current fishing regulations before you keep a fish; our state resources directory links to each state's official wildlife and fisheries agency.

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