In 2017, the 36th annual eastern Bering Sea shelf bottom trawl survey was extended northward to include 144 additional stations in an area bounded by the Bering Strait, Norton Sound, and the U.S.–Russia Maritime Boundary.
In 2018, the 37th annual eastern Bering Sea shelf bottom trawl survey was extended northward to include 49 additional stations in an area bounded by the Bering Strait, Norton Sound, and the U.S.–Russia Maritime Boundary.