Skip to main content
USGS - science for a changing world

Walrus distributional and foraging response to changing ice and benthic conditions in the Chukchi Sea

Dates

Publication Date

Citation

Walrus distributional and foraging response to changing ice and benthic conditions in the Chukchi Sea; 2012; Organization Series; 818; Jay, Chadwick V.; Grebmeier, Jacqueline M.; Fischbach, Anthony S.

Summary

Arctic species such as the Pacific walrus (Odobenus rosmarus divergens) are facing a rapidly changing environment. Walruses are benthic foragers and may shift their spatial patterns of foraging in response to changes in prey distribution. We used data from satellite radio-tags attached to walruses in 2009-2010 to map walrus foraging locations with concurrent sampling of benthic infauna to examine relationships between distributions of dominant walrus prey and spatial patterns of walrus foraging. Walrus foraging was concentrated offshore in the NE Chukchi Sea, and coastal areas of northwestern Alaska when sea ice was sparse. Walrus foraging areas in August-September were coincident with the biomass of two dominant bivalve taxa (Tellinidae [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

metadata989385451162155251.xml
Potential Metadata Source

View
2.95 KB
Thumbnail
Thumbnail

Map

Tags

Provenance

Data source
Harvester
Harvested on Mon Jul 21 14:42:45 MDT 2014 from MODS XML Service

Additional Information

Identifiers

Type Scheme Key
local-index unknown 70044610
local-pk unknown 70044610
series unknown North Pacific Research Board Project Final Report

Citation Extension

journalNorth Pacific Research Board Project Final Report
languageEnglish
citationTypeReport

Item Actions

View Item as ...

Save Item as ...

View Item...