Jellyfish and forage fish catch data, Bering Sea, 2004-2012

This data set contains information on catch of forage fish and large medusae from surface trawl surveys conducted from mid-August to early October. The sampling grid covered the shelf off western Alaska, from 160 to 172° W longitude and 55 to 64° N latitude. Stations were approximately 30 nautical miles (55.6 km) apart. All tows were standardized for gear (50 m wide by 18 m deep) and duration of tow (30 min at 3.5 to 5 knots, covering 2.8 to 4.6 km). Fish and jellyfish were collected using a Cantrawl model 400/601 (Cantrawl Pacific) midwater rope trawl, at or near the surface, with typical spreads of 66.4 m horizontally and 14.6 m vertically. Variable names are: year, vessel, station number, latitude (decimal degrees), longitude (decimal degrees), month, Chrysaora melanaster (catch number), Pacific herring (catch number)age-0 pollock, (catch number), age-0 Pacific cod (catch number), capelin (catch number). File format is CSV.