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首页> 外文期刊>ICES Journal of Marine Science >Characterizing coastal foodwebs with qualitative links to bridge the gap between the theory and the practice of ecosystem-based management
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Characterizing coastal foodwebs with qualitative links to bridge the gap between the theory and the practice of ecosystem-based management

机译：通过定性联系表征沿海食物网，以弥合基于生态系统的管理的理论与实践之间的差距

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摘要

Tools that integrate the complexity of natural systems are needed to facilitate ecosystem-based management (EBM). Loop analysis is an underutilized qualitative tool for EBM that uses information on foodweb links (e.g. predator-prey interactions) and the resulting pathways (cycles) through the foodweb to predict responses to press perturbations. We explore the utility of loop analysis related to management actions: increasing crab abundance and reducing eutrophication in coastal foodwebs. We found that crab-related management actions propagated through the foodweb, with positive and negative impacts. Several negatively impacted species support important fisheries; their declines illustrate the challenge of developing multispecies plans. In our analysis, the management actions decreasing eutrophication reduced most functional groups. However, these predictions were unreliable, suggesting indiscernible bottom-up effects in the foodwebs. Simultaneously managing for crab increases and reducing eutrophication created mostly decreasing abundances in other functional groups and reduced the predictability of the responses. The response to each management action suggests trade-offs between goals, and the qualitatively unreliable predictions could result from variation in the strength of species interactions or indicate knowledge gaps. EBM can benefit from both the explicit articulation of trade-offs and the identification of gaps in our understanding of these systems.
机译：需要使用集成自然系统复杂性的工具来促进基于生态系统的管理（EBM）。回路分析是针对EBM的一种未得到充分利用的定性工具，它使用有关食物网链接的信息（例如掠食者与猎物之间的互动）以及通过食物网产生的路径（周期）来预测对印刷机扰动的响应。我们探索了与管理措施有关的回路分析的实用性：增加蟹的丰度并减少沿海食物网的富营养化。我们发现与螃蟹相关的管理行为通过食物网传播，产生了积极和消极的影响。几个受到负面影响的物种支持重要的渔业；它们的下降说明了制定多物种计划的挑战。在我们的分析中，减少富营养化的管理措施减少了大多数功能组。然而，这些预测是不可靠的，表明在食物网中自下而上的影响是不可识别的。同时管理螃蟹的增加和富营养化的降低主要是导致其他功能组的丰度下降，并降低了响应的可预测性。对每种管理措施的反应表明了目标之间的权衡，而定性上不可靠的预测可能是由于物种相互作用强度的变化或表明知识差距所致。在我们对这些系统的理解中，明确的权衡表达和找出差距既可以使EBM受益。

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  • 来源
    《ICES Journal of Marine Science》 |2014年第3期|713-724|共12页
  • 作者

    Michael P. Carey; Phillip S. Levin; Howard Townsend; Thomas J. Minello; Glen R. Sutton; Tessa B. Francis; Chris J. Harvey; Jodie E. Toft; Katie K. Arkema; Jennifer L. Burke; Choong-Ki Kim; Anne D. Guerry; Mark Plummer; Georgi Spiridonov; Mary Ruckelshaus;

  • 作者单位

    NOAA Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA;

    NOAA Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA;

    NOAA Fisheries, Chesapeake Bay Office, 410 Severn Avenue, Suite 107-A, Annapolis, MD 21403, USA;

    NOAA Fisheries, Southeast Fisheries Science Center, Galveston Laboratory, 4700 Avenue U, Galveston, TX 77551, USA;

    Texas Parks and Wildlife Department, Galveston Bay Field Office, 1502 FM 517 East, Dickinson, TX 77539, USA;

    Puget Sound Institute, University of Washington, Tacoma, Center for Urban Waters, 326 East D Street, Tacoma, WA 98421, USA;

    NOAA Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA;

    The Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA;

    The Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA;

    NOAA Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA;

    The Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA,Ocean Science and Technology Institute, Inha University, 100 Inha-ro, Nam-gu, Incheon 402-751, Korea;

    The Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA;

    NOAA Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA;

    NOAA Fisheries, Chesapeake Bay Office, 410 Severn Avenue, Suite 107-A, Annapolis, MD 21403, USA;

    The Natural Capital Project, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA;

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

    Chesapeake Bay; demersal fisheries; ecosystem-based management; foodweb structure; Galveston Bay; loop analysis; Puget Sound;

    机译：切萨皮克湾底层渔业;基于生态系统的管理;食物网结构;加尔维斯顿湾;循环分析;普吉特海湾;

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