Science & Data

Walleye pollock (Gadus chalcogrammus; hereafter referred to as pollock) is a semi-pelagic schooling fish widely distributed in the North Pacific Ocean. Pollock in the central and western Gulf of Alaska (GOA) are managed as a single stock independently...

Walleye pollock (Gadus chalcogrammus) are broadly distributed throughout the North Pacific with the largest concentrations found in the Eastern Bering Sea.

Alaska pollock (Gadus chalcogrammus) are broadly distributed throughout the North Pacific with largest concentrations found in the Eastern Bering Sea.

Walleye pollock (Gadus chalcogrammus; Coulson et al. 2006; Carr and Marshall 2008; here after pollock) are distributed throughout the Aleutian Islands (AI) with concentrations in areas and depths dependent on diel and seasonal migration.

This is a three species stock assessment for walleye pollock (Gadus chalcogrammus), Pacific cod (Gadus macrocephalus) and arrowtooth flounder (Atheresthes stomias), from the Eastern Bering Sea (EBS), Alaska updated from Holsman et al. (2016).

Walleye pollock (Gadus chalcogrammus; hereafter referred to as pollock) is a semi-pelagic schooling fish widely distributed in the North Pacific Ocean. Pollock in the central and western Gulf of Alaska (GOA) are managed as a single stock independently...

Conditions in the Gulf of Alaska were close to average in 2020...

Considerable cooling began in late December 2019 and allowed for rapid build-up of sea ice, exceeding the median (1981-2010) ice extent in parts of February and March 2020. However, ice thickness was low and the ice retreated quickly with warm winds in...

Throughout the Aleutian Islands, sea surface temperatures have been warmer than average since 2013, and 2020 was no different. However, the 2020 temperatures were cooler relative to last year, particularly in the eastern Aleutians where there was close...

Ecosystem Status Reports are produced annually to compile and summarize information about the status of the Alaska marine ecosystems for the North Pacific Fishery Management Council, the scientific community and the public. As of 2016, there are separate reports for the Eastern Bering Sea, Aleutian Islands, the Gulf of Alaska, and Arctic (forthcoming) ecosystems. These reports include ecosystem report cards, ecosystem assessments, and ecosystem and ecosystem-based management indicators that together provide context for ecosystem-based fisheries management in Alaska.