02348oam 2200529 a 450 991070202770332120121011102502.0(CKB)5470000002423854(OCoLC)809201435(EXLCZ)99547000000242385420120905d2012 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierResults of cooperative research acoustic surveys of walleye pollock (Theragra chalcogramma) in the western Gulf of Alaska from September 2007 to September 2011[electronic resource] /by S. Romain, M. Dorn, and V. WespestadSeattle, WA :U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center,[2012]1 online resource (v, 35 pages) illustrations (some color), mapsNOAA technical memorandum NMFS-AFSC ;238Title from title screen (viewed on Oct. 11, 2012)."July 2012."Includes bibliographical references (pages 13-16).Results of cooperative research acoustic surveys of walleye pollock Echo sounding in fishingAlaskaAlaska, Gulf ofFish populationsAlaskaAlaska, Gulf ofMeasurementFish stock assessmentAlaskaAlaska, Gulf ofWalleye pollock fisheriesAlaskaAlaska, Gulf ofWalleye pollockAlaskaAlaska, Gulf ofGeographical distributionEcho sounding in fishingFish populationsMeasurement.Fish stock assessmentWalleye pollock fisheriesWalleye pollockGeographical distribution.Romain S(Suzanne M.)1402828Dorn Martin William1955-1402829Wespestad Vidar G1402830Alaska Fisheries Science Center (U.S.)WAUWAUWAUOCLCOGPOBOOK9910702027703321Results of cooperative research acoustic surveys of walleye pollock (Theragra chalcogramma) in the western Gulf of Alaska from September 2007 to September 20113474194UNINA