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The Petrale sole (Eopsetta jordani) is an edible flatfish of the family Pleuronectidae. It is a demersal fish that lives on sandy bottoms, usually in deep water, down to depths of about 550 metres (1,800 ft). Males can grow to 53 centimetres (21 in) in length, females to 70 centimetres (28 in), and they can weigh up to 3.7 kilograms (8.2 lb).
Pleuronectidae, also known as righteye flounders, are a family of flounders.They are called "righteye flounders" because most species lie on the sea bottom on their left sides, with both eyes on their right sides. [1]
The word sole in English, French, and Italian comes from its resemblance to a sandal, Latin solea. [2] [3] In other languages, it is named for the tongue, e.g. Greek glóssa (γλώσσα), German Seezunge, Dutch zeetong or tong or the smaller and popular sliptong (young sole), Hungarian nyelvhal, Spanish lenguado, Cantonese lung lei (龍脷, 'dragon tongue'), Arabic lisan Ath-thawr ...
Species on the food chain can amass body concentrations of mercury up to ten times higher than the species they consume. This process is called biomagnification. For example, herring contains mercury levels at about 0.1 parts per million, while shark contains mercury levels greater than 1 part per million. [5]: Vol. 4
The American soles are a family (Achiridae) of flatfish occurring in both freshwater and marine environments of the Americas.The family includes about 35 species in seven genera.
Mercury occurs naturally in the environment and exists in many forms. In pure form, it is known as "elemental" or "metallic" mercury. Elemental mercury is a shiny, silver-white metal that is liquid at room temperature.
A flatfish resembling a small halibut or sole was observed by the bathyscaphe Trieste at the bottom of the Mariana Trench at a depth around 11 km (36,000 ft). [3] This observation has been questioned by fish experts, and recent authorities do not recognize it as valid.
Northern rock sole is fished commercially, and forms an important part of two trawl fisheries in the Bering Sea and Gulf of Alaska.Although it was overfished in the 1960s stocks have recovered, and the biomass of Northern rock sole in the Bering Sea and Aleutian Islands fishery is now estimated to be very high, at twice the level required to support maximum sustainable yield.