Research Article

Rebuilding Global Fisheries

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Science  31 Jul 2009:
Vol. 325, Issue 5940, pp. 578-585
DOI: 10.1126/science.1173146

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  • Response to E-Letter from S. Zhou

    S. Zhou questions the definition of the term "exploitation rate" (ut) used in our Research Article on rebuilding global fisheries ("Rebuilding global fisheries," B. Worm et al., 31 July 2009, p. 578). We must emphasize that there is no ambiguity about ut which is properly defined in our paper as the ratio of catch (Ct) to available biomass (Bt...

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    Competing Interests: None declared.
  • The Exploitation Rate in Fishery Science

    B. Worm and coauthors ("Rebuilding global fisheries," Research Article, 31 July 2009, p. 578) completed an enormous task to assess the status of fish stocks worldwide. However, they overlooked errors between the definition of a key quantity—exploitation rate—and the model used to estimate it. Because exploitation rate is a fundamental concept in fisheries management and has been loosely used by scientists even in stock assessme...

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    Competing Interests: None declared.