Walleye Pollock
Theragra chalcogramma

Where do pollock live?

Pollock are widely distributed throughout the North Pacific Ocean in temperate and subarctic waters. Pollock is a semi-demersal (pelagic but close to the bottom) schooling fish, which becomes increasingly demersal with age.

What do pollock eat?

Young pollock feed on krill, zooplankton, and other crustaceans. As pollock increase in size, their diet begins to include juvenile pollock and other teleosts (bony fish). The cannibalistic nature of pollock, particularly adults feeding on juveniles, is well documented by field studies in the eastern Bering Sea.

How do pollock reproduce?

Pollock spawning takes place in the early spring on the outer continental shelf. In the eastern Bering Sea (EBS), the largest concentrations occur in the southeast, north of Unimak Pass. In the Gulf of Alaska (GOA), the largest spawning concentrations occur in Shelikof Strait and the Shumagin Islands.