Traceable Species

Winter Flounder

Flounder, Sole, Lemon Sole, Georges Bank Flounder, Blackback Flounder

Winter Flounder

Winter flounder are a small-mouthed flatfish that lives on sandy or gravely seafloors in estuaries and along the continental shelf from the Gulf of St. Lawrence to North Carolina. Most common north of Delaware Bay, these bottom-dwellers are oval-shaped and with a fairly straight lateral line leading to a rounded tail. They are named after the fact that they migrate to inshore bays and estuaries during winter months.

Winter flounder’s colour varies with their habitat from reddish brown and olive green to dark slate and almost black. Their underside is white with fins tinged with pink, red or yellow. They grow up to two feet and have both eyes on their right side. This flatfish is very popular due to his lean meat, delicate flavour and fine texture.

Winter Flounder

Winter flounder grow up to more than two feet in length and reach 15 to 18 years of age. In the winter and spring, they migrate to shallow inshore waters to spawn. Females lay from 500,000 to 1.5 million eggs along sandy seafloor at night about 40 times throughout the spawning season. The larvae settle on the bottom where they transform into juveniles. When they hatch, the flounder’s eyes are symmetrical with one on each side of its head. As the fish grows, it takes on its flattened shape and the left eye slowly drifts over to the right side of its head next to the other eye. With their small mouths, winter flounder feed during the day on small invertebrates, clams, worms and shrimp.

Food Info Winter Flounder


  • Colour: raw ranges from tan to pinkish to snow white; cooked is pure white
  • Texture: firm, boneless and flaky
  • Flavour: lean and fairly mild with a distinctive sweetness
  • Perfect serve: Pan searing flounder on high heat will develop a nice golden brown finish to add to the fish’s texture. As sashimi, serve flounder with a light vinaigrette dressing and some simple raw vegetable garnishes.
Species Range
Winter Flounder range Source:
Lemon Sole
Georges Bank Flounder
Blackback Flounder
Winter Flounder by Bottom Trawl (USA) Apr 01 - Mar 31
These crabs mate at the time of maturity, which is approximately 3 years of age. Females are smaller than males; this is because the development of reproductive tissues required more energy for females, leaving less energy available for continued body growth. They grow through a process known as molting—regularly shedding their shell and growing a new, larger one. They continue to molt and grow after they have reached sexual maturity. During the breeding season, the crabs leave their borrows in a phenomenon characterized by mass mate-searching events. Once mating/fertilization has occurred, females spawns in the water. The larvae released during the rainy season develop in offshore waters and return to coastal waters five to eight weeks after larval release.
Mangrove crabs are important fishery resources in all Brazilian coast, mainly in the north and northeast where many fishermen depend upon their catch. In addition to its social and economic importance, the mangrove crab is a “keystone” species in ecosystem, they playing an important role in the processes of nutrient cycling and energy transfer.

Fishing Methods

{'fisheries': [<License: Winter Flounder by Bottom Trawl (USA)>], 'gear': <Gear: Bottom Trawl>}

Bottom Trawl

This fishery uses a large cone-shaped net that is dragged along the seafloor to catch fish. As the net is towed at low speed, hydrodynamic forces push two "otter boards" outwards opening the mouth of the net and capturing fish in its path.


Featured Harvester Bernie Berry

Mangrove Crab Harvester

Canavieiras, Brazil

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