Abstract
Abstract The National Marine Fisheries Service has been conducting pot index surveys in the northeast Pacific Ocean since 1978 in an attempt to measure changes in the relative abundance of sablefish (Anoplopoma fimbria). These surveys began initially off southeast Alaska and have since been extended to the Washington-Oregon-California region. In this paper, we evaluate the available data base using analysis of variance and the relatively new method of bootstrapping (i.e., a Monte Carlo form of sample reuse). Analysis of variance indicated the between-year changes in relative abundance were not statistically significant. Bootstrap analyses indicate three or fewer sets are required for each depth stratum at a sampling location (currently five are being taken), and as many as 12 sampling locations per region may be desirable (currently four locations are sampled off southeast Alaska and six locations are sampled off Washington-Oregon-California). These recommendations may have to be altered in the future whe...
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