Distribution, biomass and size of grooved Tanner crabs (Chionoecetes tanneri) from annual bottom trawl surveys (2003-2010) along the U.S. west coast (Washington to California)

► We examined catch and distribution of grooved Tanner crab along the U.S. west coast; crabs were present in 28% of tows and occurred primarily at depths from 300 to 1280 m. ► Annual catch-weighted depths were related to Pacific Decadal Oscillation indices; annual mean carapace widths (2005-2010) were always greater for males. ► Size frequency distributions varied by year with strong recruitment in 2010.