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Polar Ecosystems Program Results

30 results match your filter criteria.

Research Brief: Northern Bering Sea Surface Trawl and Ecosystem Survey

August 27 to September 19, 2021 Northern Bering Sea surface trawl and ecosystem survey overview information sheet.
January 10, 2022 -

U.S. and Russian Scientists Partner to Study Polar Bear and Seal Populations

A cooperative aerial survey using innovative technology opens new possibilities to monitor mammals on Arctic sea ice.
May 17, 2021 - Feature Story ,
Aerial photo of a polar bear on sea ice with a superimposed enlarged image. Polar bear image captured during aerial survey of the Chukchi Sea. Credit: NOAA Fisheries.

Research Brief: 2021 Aerial Survey for Seals and Polar Bears in the Beaufort Sea

April 17 – June 14, 2021, Aerial Survey for Seals and Polar Bears in the Beaufort Sea overview information sheet.
March 24, 2021 -

Condition of Seals Declined During Rapid Warming in Alaska

A new study finds quantitative evidence of climate-related impacts on these typically adaptable, resilient predators.
January 27, 2021 - Feature Story ,
Photo of a spotted seal mother and pup sitting on an ice floe. Spotted seal mother and pup in the Bering Sea. Photo: NOAA Fisheries.

Marine Mammal Laboratory Staff Publications by Year

The following documents provide citable lists of all Marine Mammal Laboratory publications by year from 2000-2018.

Multi-Year Study Seeks to Understand Potential Impact of Tour Vessels on Harbor Seals in Alaska's Disenchantment Bay

Scientists work to identify potential impacts of tour vessels on harbor seal populations in the bay.
April 04, 2018 - Feature Story ,

Harbor Seal Survey in Alaska

Two NOAA Twin Otter aircraft were used to conduct the aerial surveys with the support of NOAA’s Aircraft Operations Center.

Harbor Seal Research in Alaska

We conduct research on Alaska harbor seal population abundance and trends, a priority for the Alaska Fisheries Science Center since the 1980s. We are required to conduct this research under the Marine Mammal Protection Act of 1972, which established a national policy to prevent marine mammal populations from declining beyond the point where they cease to be significant functioning elements of the ecosystem. Our long-term datasets, combined with satellite telemetry studies of movement and behavior and new statistical techniques, enable us to estimate abundance and trends for the 12 recognized stocks of harbor seals in Alaska.