Biological Basis For Management of Commercial Fishery Resources of the Eastern Bering Sea

  • R. C. Francis
  • S. A. Adlerstein
  • R. D. Brodeur
  • Michael P. Sissenwine
Conference paper
Part of the Lecture Notes on Coastal and Estuarine Studies book series (COASTAL, volume 28)


Some biological considerations involved with the management of three Eastern Bering Sea fisheries are reviewed. Groundfish management is very complex due to multispecies and multifishery interactions superimposed on a highly variable fishery, The abundance of the various species is assessed through catch information and independent research trawl and acoustic surveys, and a total allowable catch is assigned for individual species and the total groundfish complex. This total catch is adjusted for various biological and socioeconomic factors, and conservative allocations are made to the various fisheries, The biological input related to the management of the walleye polllock fioshery is illustrated as an example. Management of the Bristol Bay sockeye salmon fishery is inherently less complex since it deals with a single species and fishery, one management agency and a relatively limited time frame. However, biological eomplexities involving different run timings, brood-year interaetions, eyclic dominanee, and long-term elimatic ehanges render optimal spawner level decisions based on spawner-reeuit relations of questionable value. Forecasts of run size are based on serial monitoring by a pre-season test fishery, as well as in-season cateh and escapement monitoring, and cateh is adjusted aecordingly. King crab management is based on tbe supposition that male crabs that have already mated at least once represent a surplus that may be harvested. Close monitoring of cateh and pre- and postreeruit abundance Ievels is critieal to the suceess of this strategy in such a cyelically variable fishery. Since all three fisheries undergo long-term fluetuations possibly driven by environmental eonditions, evolution toward a more dynamie management poliey is advocated.


Fishery Management Sockeye Salmon Maximum Sustainable Yield Total Allowable Catch Replacement Line 
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Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • R. C. Francis
    • 1
  • S. A. Adlerstein
    • 1
  • R. D. Brodeur
    • 1
  • Michael P. Sissenwine
    • 2
  1. 1.Fisheries Research InstituteUniversity of WashingtonSeattleUSA
  2. 2.Northeast Fisheries CenterWoods HoleUSA

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