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Allaska pollock

Theragra halcogramma (Pallas)

Alaska pollock or walleye pollock (Theragra chalcogramma) is a species of the cod family Gadidae. Alaska pollock is a semipelagic schooling fish widely distributed in the North Pacific with largest concentrations found in the eastern Bering Sea.

While related to the common Atlantic pollock species of the same family, the Alaska pollock is not a member of the same Pollachius genus. Rather, recent research suggests that it is more closely related to Atlantic cod, and that Alaska pollock should be moved back to genus Gadus in which it was originally described as Gadus chalcogrammus. Furthermore, Norwegian pollock (Theragra finnmarchica), a rare fish of Norwegian waters, is likely the same species as the Alaska pollock.

Compared with pollock, Alaska pollock has a milder taste, whiter color and lower oil content.

High quality, single frozen whole Alaska pollock fillets may be layered into a block mold and deep frozen to produce fish blocks that are used throughout Europe and North America as the raw material for high quality breaded and battered fish products. Lower quality, double-frozen fillets or minced trim pieces may also be frozen in block forms and used as raw material for lower quality, low-cost breaded and battered fish sticks, portions, etc.

Single frozen Alaska pollock is considered to be the premier raw material for surimi; the most common use of surimi in the United States is "imitation crabmeat" (also known as crab stick). It is the main ingredient in the surimi-based sandwich product called "Seafood Sensation" sold by the Subway fast-food chain.