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首页> 外文期刊>ICES Journal of Marine Science >Lessons learned from stock collapse and recovery of North Sea herring: a review
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Lessons learned from stock collapse and recovery of North Sea herring: a review

机译:从种群崩溃和北海鲱鱼恢复中汲取的教训:回顾

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摘要

The collapse and recovery of North Sea herring in the latter half of the 20th century had both ecological and economic consequences. We review the effect of the collapse and investigate whether the increased understanding about the biology, ecology, and stock dynamics gained in the past three decades can aid management to prevent further collapses and improve projections of recovery. Recruitment adds the most uncertainty to estimates of future yield and the potential to reach biomass reference points within a specified time-frame. Stock-recruitment relationships must be viewed as being fluid and dependent on ecosystem change. Likewise, predation mortality changes over time. Management aimed at maximum sustainable yield (MSY) fishing mortality targets implies interannual variation in TACs, and variability in supply is therefore unavoidable. Harvest control rules, when adhered to, aid management greatly. We advocate that well-founded science can substantially contribute to management through improved con-fidence and increased transparency. At present, we cannot predict the effects of collapse or recovery of a single stock on the ecosystem as a whole. Moreover, as managers try to reconcile commitments to single-species MSY targets with the ecosystem-based approach, they must consider the appropriate management objectives for the North Sea ecosystem as a whole.
机译:在20世纪下半叶,北海鲱鱼的崩溃和恢复对生态和经济都产生了影响。我们回顾了崩溃的影响,并调查了过去三十年来对生物学,生态学和种群动态的深入了解是否有助于管理,以防止进一步崩溃并改善恢复预测。招聘给未来产量的估计和在指定时间内达到生物质参考点的潜力增加了最大的不确定性。必须将种群招聘关系看作是不稳定的,并取决于生态系统的变化。同样,捕食死亡率会随时间变化。旨在实现最大可持续产量(MSY)捕捞死亡率目标的管理意味着TAC的年际变化,因此不可避免地出现供应变化。遵守收获控制规则,将大大有助于管理。我们主张,有充分根据的科学可以通过提高信心和增加透明度来为管理做出重大贡献。目前,我们无法预测单个种群的崩溃或恢复对整个生态系统的影响。此外,当管理者试图将对单一物种MSY目标的承诺与基于生态系统的方法协调一致时,他们必须考虑整个北海生态系统的适当管理目标。

著录项

  • 来源
    《ICES Journal of Marine Science》 |2010年第9期|p.1875-1886|共12页
  • 作者单位

    Wageningen Institute for Marine Resources and Ecosystem Studies, PO Box 68, 7970 AB Ijmuiden, The Netherlands;

    rnInstitute of Marine Research, PO Box 7870, Nordnes, 5877 Bergen, Norway;

    rnWageningen Institute for Marine Resources and Ecosystem Studies, PO Box 68, 7970 AB Ijmuiden, The Netherlands;

    rnWageningen Institute for Marine Resources and Ecosystem Studies, PO Box 68, 7970 AB Ijmuiden, The Netherlands;

    rnSchool of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, Aberdeen AB24 2TZ, Scotland, UK;

    rnNational Institute of Aquatic Resources (DTU-Aqua), Technical University of Denmark, 2920 Cnarlottenlund, Denmark;

    rnWaterdief 52, Uitgeest, The Netherlands;

    rnDepartment of Biology, University of Bergen, PO Box 7803, 5020 Bergen,Norway;

    Institute of Hydrobiology and Fisheries Science, University of Hamburg Olbersweg 24, D-22767 Hamburg, Germany;

    rnMarine Scotland-Science, PO Box 101, Victoria Road, Aberdeen AB7 7 9DB, Scotland, UK;

    rnWageningen Institute for Marine Resources and Ecosystem Studies, PO Box 68, 7970 AB Ijmuiden, The Netherlands;

    rnDepartment of Biology, University of Bergen, PO Box 7803, 5020 Bergen,Norway;

    rnInternational Commission for the Conservation of Atlantic Tunas (ICCAT), Corazon de Maria 8, Planta 6, 28002 Madrid, Spain;

    rnWageningen Institute for Marine Resources and Ecosystem Studies, PO Box 68, 7970 AB Ijmuiden, The Netherlands;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    demographic; distribution; fisheries management; metapopulation; multispecies; productivity;

    机译:人口统计分配;渔业管理;人群;多物种生产率;

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