Pollock
Pollock or pollack 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 North America, Ireland and the United Kingdom, while Pollachius virens is usually known as saithe or coley in Great Britain and Ireland. Other names for P. pollachius include the Atlantic pollock, European pollock, lieu jaune, and lythe or lithe; while P. virens is also known as Boston blue and silver bill.
Species
The recognized species in this genus are:| Species | Common name | Image |
| Pollachius pollachius | pollack | |
| Pollachius virens | coalfish |
Description
Both species can grow to. P. virens can weigh up to and P. pollachius can weigh up to. P. virens has a strongly defined, silvery lateral line running down the sides. Above the lateral line, the colour 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 deep over rocks and anywhere in the water column.As food
Atlantic pollock is largely considered to be a whitefish. 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, pollock has become more popular due to overfishing of cod and haddock. It can 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 grey colour, 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. Coalfish can also be salted and smoked and achieve a salmon-like orange color, as is the case in Germany, where the fish is commonly sold as Seelachs.
In 2009, UK supermarket Sainsbury's briefly renamed Atlantic 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, launched the product under the banner "Colin and chips can save British cod."
Pollock is regarded as a "low-mercury fish" – a woman weighing can safely eat up to per week, and a child weighing can safely eat up to.