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Google圖書搜尋
The 2008 Eastern Bering Sea Continental Shelf Bottom Trawl Survey
Elizabeth Ann Chilton
Claire E. Armistead
Robert James Foy
其他書名
Results for Commercial Crab Species
出版
U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center
, 2008
URL
http://books.google.com.hk/books?id=E3DZPgAACAAJ&hl=&source=gbs_api
註釋
The eastern Bering Sea bottom trawl survey has been conducted annually since 1975 by the National Marine Fisheries Service's Alaska Fisheries Science Center's Resource Assessment and Conservation Engineering Division. The purpose of this survey is to collect data on the distribution and abundance of crab and groundfish resources in the eastern Bering Sea. These data are used to estimate population abundances for the management of commercially important species in the region. In 2008, 376 standard stations were sampled and an additional 32 stations were resampled in Bristol Bay at the end of the standard survey to adequately account for female red king crab maturity. The 2008 point estimates (± 2 SE) for legal-sized males (millions of crab) of commercial crab stocks in the EBS were as follows.