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Juvenile bearded seal response to a decade of sea ice change in the Bering, Chukchi, and Beaufort seas
- Source :
- Marine Ecology Progress Series. 661:229-242
- Publication Year :
- 2021
- Publisher :
- Inter-Research Science Center, 2021.
-
Abstract
- Significant reductions in sea ice in the Pacific Arctic have occurred over the last 2 decades. Comparing the results of similarly conducted studies, but from different time periods, can increase our understanding of how marine mammals are responding to this change. We modeled the habitat selection and movement behavior of juvenile bearded seals Erignathus barbatus tagged with satellite transmitters in the Bering, Chukchi, and Beaufort seas during 2014-2018, a period of rapid decline in sea ice cover. We compared our results to an earlier study of juvenile bearded seals tagged in the Chukchi Sea during 2004-2009, a period of relatively stable sea ice coverage, and found differences. Seals in the earlier period strongly selected habitat near the ice edge and intermediate ice concentrations (50-60%) in both winter and spring. Seals in the later period strongly selected habitat away from the ice edge, showed no selection for any ice concentration in winter, and weakly selected low ice concentrations in spring (
- Subjects :
- 0106 biological sciences
geography
geography.geographical_feature_category
010504 meteorology & atmospheric sciences
Ecology
biology
Satellite telemetry
010604 marine biology & hydrobiology
Climate change
Beaufort scale
Aquatic Science
biology.organism_classification
01 natural sciences
Seal (mechanical)
law.invention
Oceanography
law
Erignathus barbatus
Sea ice
Juvenile
Ecology, Evolution, Behavior and Systematics
Geology
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 16161599 and 01718630
- Volume :
- 661
- Database :
- OpenAIRE
- Journal :
- Marine Ecology Progress Series
- Accession number :
- edsair.doi...........d91fe5c82481e03aa256e971c62b4de2