Effect of Biological Assumptions on Halibut Production Estimates

  • Donald A. McCaughran
  • Richard B. Deriso
  • Gary Stauffer
Conference paper
Part of the Lecture Notes on Coastal and Estuarine Studies book series (COASTAL, volume 28)

Abstract

Estimates of halibut abundanee and produetivity were obtained by using models that were derived from assumptions about Paeifie halibut biology. A sensitivity analysis is presented of the effeet of errors in our assumptions. Abundanee estimates are sensitive to the assumed value of the natural mortality rate; annual surplus produetion is Iess sensitive. Varianee estimates for the abundanee of eight-year old halibut indicate an inerease in reeent year. Because the varianee for reeent abundanee is large, a single “best” estimate would be inappropriate to offer. The knowiedge of these varianees eould aid fisheries managers in evaluating annual fish population statistics.

Keywords

Cohort Analysis Fishing Mortality Stock Assessment Maximum Sustainable Yield Pacific Halibut 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • Donald A. McCaughran
    • 1
  • Richard B. Deriso
    • 1
  • Gary Stauffer
    • 2
  1. 1.International Pacific Halibut CommissionSeattleUSA
  2. 2.Northwest and Alaska Fisheries CenterSeattleUSA

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