|‘Bering’ north through the strait, toward the Chukchi shelf break.|
Northern Bering Sea / Chukchi Sea
The Arctic Ecosystem Integrated Survey, through a collective effort from our funders and project investigators, has contracted two ships for three complete surveys of the northern Bering Sea and all of the Chukchi Sea shelf region to be conducted in 2012 and 2013. This effort will provide for a total of nearly 6 months of at-sea sampling time where our scientists will conduct repeated, and in some cases the first ever, field sampling from this area in order to facilitate state-of-the-art research that will be disseminated to both scientific and public audiences once analyzed. This will provide the first comprehensive, integrated, and geographically complete oceanographic and fisheries survey on the US portion of the Chukchi Sea shelf.
The fisheries and oceanographic data collections at sea occurred from August through September in 2012 and 2013. Surface trawl (top 20-m of the water column) surveys, along with additional biological and physical oceanographic sampling, took place on board the F/V Bristol Explorer from the northeastern Bering Sea shelf (north of 60°N) to the northern Chukchi Sea. Demersal and benthic fish and invertebrate bottom trawls were conducted on the F/V Alaska Knight only in the Chukchi Sea in 2012. We use standard grid surveys with sampling stations every 30 nautical miles with additional stations for oceanographic collections every 15 miles along E-W transects. Data collection will include fish, physical, and biological oceanographic samples.