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Example Application of Candidate Precautionary Approach Limit Reference Points to the 3Ps Cod Stock

P. A. Shelton

出版	Canadian Science Advisory Secretariat = Secrt́ariat canadien consultation scientifique, 2003
URL	http://books.google.com.hk/books?id=B0EnywAACAAJ&hl=&source=gbs_api

註釋

There are currently no precautionary-approach spawner biomass limit reference points in place for the cod stock off southern Newfoundland. This study provides example applications of candidate limit reference points to population estimates derived from the 2002 stock assessment, extended back to 1959. The candidates include five approaches/variants which were applied to three severely depleted cod stocks in February 2003 and incorporated in scientific advice which was used as a basis for the closure of the directed fisheries on these stocks. In addition, two new approaches based on non-parametric estimates of the probability of poor recruitment for a range of spawner biomass values and an approach called segmented regression are applied.