The Winter flounder (Pseudopleuronectes americanus) is a saltwater fish of the family Pleuronectidae that grows up to 64 cm.
Northwest Atlantic along the east coast of North America, over sandy and silty bottoms of cold coastal water and estuaries.
Description
The winter flounder is a right-eyed flatfish of the family Pleuronectidae (righteye flounders) reaching about 64 cm. The oval body has both eyes on the right side, a small mouth and a thick, leathery skin; the upper side varies from olive-brown to almost black, matching the bottom. The species lives over sand and mud bottoms of cold coastal water and estuaries along the east coast of North America. In winter it moves into shallow bays and estuaries to spawn, hence its name. On the bottom it searches for worms, small crustaceans, molluscs and small fish. With its tasty flesh it is a popular commercial and sport fish, including for ice fishing.
Frequently asked questions
How do you recognise the Winter flounder?
The Winter flounder has a flatfish-shaped body, is mainly brown and shows a plain pattern. Right-eyed flatfish with a small mouth and thick, leathery skin; the upper side varies from olive-brown to almost black.
Where does the Winter flounder live?
The Winter flounder lives in the sea (marine waters) and is mostly found around sand or mud bottom. Northwest Atlantic along the east coast of North America, over sandy and silty bottoms of cold coastal water and estuaries.
How big does the Winter flounder get?
The Winter flounder grows to a maximum of about 64 cm.
Is the Winter flounder dangerous to humans?
No, the Winter flounder is harmless to humans. None required: this species is harmless to humans.
Is the Winter flounder edible?
Yes, the Winter flounder is a highly prized food fish.
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All data
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Appearance
Habitat & distribution
Behaviour & biology
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Status & sources
Same genus Pseudopleuronectes
More from the family Pleuronectidae

Want the complete picture on the Winter flounder?
Point your camera at the fish and Fin names the species in seconds. Free, and the Winter flounder is one of 12,519 species in the app.