Science & Data

EcoFOCI’s spring mooring cruise departed Dutch Harbor on May 10. This annual survey provides baseline fisheries & oceanographic data to support ongoing management of our nation's fisheries and marine life in the Bering Sea & rapidly changing U.S. Arctic.

Distribution and Relative Abundance of Marine Mammals in the Eastern Chukchi Sea, Eastern and Western Beaufort Sea, and Amundsen Gulf, 2019 Annual Report

Tracks the implementation of recovery actions from Endangered Species Act (ESA) recovery plans.

Each year we conduct aerial surveys of the northern and western coasts of Alaska, in the Beaufort and Chukchi seas.

Each year we conduct aerial surveys of the northern and western coasts of Alaska, in the Beaufort and Chukchi seas.

This paper describes song production by the eastern North Pacific right whale (NPRW, Eubalaena japonica) in the southeastern Bering Sea. Songs were localized in real-time to individuals using sonobuoys.

Little is known about the winter distribution of the critically endangered eastern population of North Pacific right whale but it has been proposed that the eastern Aleutian Islands, specifically Unimak Pass, be a possible migratory route for individuals.

This report describes field activities of the Aerial Surveys of Arctic Marine Mammals (ASAMM) project conducted during summer and fall (1 July–27 October) 2017, and data and analyses used to summarize field activities. Surveys were based in Utqiaġvik (formerly Barrow), Alaska, and Deadhorse, Alaska, and targeted the northeastern and southcentral Chukchi and western Beaufort seas, between 67°N and 72°N latitude, 140°W and 169°W longitude.

This report describes field activities of the Aerial Surveys of Arctic Marine Mammals (ASAMM) project conducted during summer and fall (1 July–31 October) 2016, and data and analyses used to summarize field activities. Surveys were based in Barrow, Alaska, and Deadhorse, Alaska, and targeted the northeastern and southcentral Chukchi and western Beaufort seas, between 67°N and 72N latitude and 140°W and 169°W longitude. Between 19 July and 20 August, surveys extended up to 111 km north of the usual ASAMM study area to collect information specific to the Eastern Chukchi Sea (ECS) stock of belugas.

The eastern population of the North Pacific right whale is one of the most endangered baleen whale populations in the world numbering in the tens of individuals due to historical whaling followed by illegal catches in the 1960s.