Asellus Minding, 1832
Pollock or pollack (pronounced //) is the common name used for either of the two species of North Atlantic marine fish in the genus Pollachius. Pollachius pollachius is referred to as pollock in both North America and the United Kingdom, while Pollachius virens is usually known as coley in the British Isles (derived from the older name coalfish). Other names for P. pollachius include the Atlantic pollock, European pollock, lieu jaune, and lythe; while P. virens is also known as Boston blue (distinct from bluefish), silver bill, or saithe.
The recognized species in this genus are:
Both species can grow to 105 centimetres (3.44 ft) and can weigh up to 21 kilograms (46 lb). P. virens has a strongly defined, silvery lateral line running down the sides. Above the lateral line, the color is a greenish black. The belly is white, while P. pollachius has a distinctly crooked lateral line, grayish to golden belly, and a dark brown back. P. pollachius also has a strong underbite. It can be found in water up to 180 metres (98 fathoms; 590 ft) deep over rocks and anywhere in the water column. Pollock are a whitefish.
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Atlantic pollock is largely considered to be a whitefish, although it is a fairly strongly flavored one. Traditionally a popular source of food in some countries, such as Norway, in the United Kingdom it has previously been largely consumed as a cheaper and versatile alternative to cod and haddock. However, in recent years,[when?] pollock has become more popular due to overfishing of cod and haddock. It can now be found in most supermarkets as fresh fillets or prepared freezer items. For example, it is used minced in fish fingers or as an ingredient in imitation crab meat and is commonly used to make fish and chips.
Because of its slightly gray color, pollock is often prepared, as in Norway, as fried fish balls, or if juvenile-sized, breaded with oatmeal and fried, as in Shetland. Year-old fish are traditionally split, salted, and dried over a peat hearth in Orkney, where their texture becomes wooden.[clarification needed] The fish can also be salted and smoked and achieve a salmon-like orange color (although it is not closely related to the salmon), as is the case in Germany, where the fish is commonly sold as Seelachs or sea salmon. In Korea, pollock may be repeatedly frozen and defrosted to create hwangtae, half-dried to create ko-da-ri, or fully dried and eaten as book-o. In 2019, South Korea imposed a total ban on pollock fishing "to help replenish depleted stocks" of the fish. 
In 2009, UK supermarket Sainsbury's briefly renamed pollock colin in a bid to boost ecofriendly sales of the fish as an alternative to cod. Sainsbury's, which said the new name was derived from the French for cooked pollock (colin), launched the product under the banner "Colin and chips can save British cod."
Pollock is regarded as a "low-mercury fish", and a woman weighing 60 kg (130 lb) can safely eat up to 18 ounces (510 g) per week, and a child weighing 20 kg (44 lb) can safely eat up to 6 ounces (170 g).
Other fish called pollock
One member of the genus Gadus is also commonly referred to as pollock: the Alaska pollock or walleye pollock (Gadus chalcogrammus), including the form known as the Norway pollock. They are also members of the family Gadidae but not members of the genus Pollachius.
- Kirkpatrick, E. M., ed. (1983). Chambers 20th Century Dictionary (New ed.). Edinburgh: Chambers. p. 904. ISBN 0550102345.
- Froese, Rainer and Pauly, Daniel, eds. (2012). Species of Pollachius in FishBase. April 2012 version.
- Based on data sourced from the relevant FAO Species Fact Sheets
- "S. Korea to impose year-round fishing ban on pollock". Yonhap News. Yonhap News Agency. 2019-01-15. Retrieved 2019-08-12.
- A colin and chips? Sainsbury's gives unfashionable pollack a makeover | Business | The Guardian
- "Which Fish Are Safe for Pregnant Women?". Consumer Reports. 2017-01-27. Retrieved 2019-03-01.
- Froese, Rainer and Pauly, Daniel, eds. (2006). Species of Pollachius in FishBase. June 2006 version.
- Froese, Rainer and Pauly, Daniel, eds. (2006). "Pollachius pollachius" in FishBase. June 2006 version.
- Froese, Rainer and Pauly, Daniel, eds. (2006). "Pollachius virens" in FishBase. June 2006 version.
- Davidson, Alan. Oxford Companion to Food (1999), “Saithe”, p. 682. ISBN 0-19-211579-0
- Norum, Ben. The Big Book of Ben (2007), "pollock / pollack", p. 32
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