European plaice Fund says, in 2006, "of the eight plaice stocks recognised by ICES, only one is considered to be harvested sustainably while three are overexploited. Data are insufficient to assess the remaining stocks; however, landings for all stocks are at or near historical lows." In 2010, Greenpeace International has added the European plaice to its seafood red list. European plaice The European plaice ("Pleuronectes platessa") is a commercially important flatfish. The geographical range of the European plaice is off all coasts from the Barents Sea to the Mediterranean, also in the Northeast Atlantic and off Greenland. In some locales such as
Black spot disease (fish) after leaving the snails they burrow into the skin of fish and form a cyst. The fish surrounds the cyst with black pigment that gives the disease its name. If an infected fish is consumed by a bird, the cycle repeats itself. Black spot disease (fish) Black spot disease is also known as diplopstomiasis or fluke disease. It is a freshwater fish disease caused by flatworm larvae of the genus "Neascus". It appears as tiny black spots on the skin, fins and flesh of the fish. The life cycle of the parasite typically involves a fish-eating bird, a snail and