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首页> 外文期刊>ICES Journal of Marine Science >Using Fishermen's Ecological Knowledge to map Atlantic cod spawning grounds on Georges Bank
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Using Fishermen's Ecological Knowledge to map Atlantic cod spawning grounds on Georges Bank

机译:利用渔民的生态知识在乔治银行绘制大西洋鳕鱼产卵场

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摘要

The spawning dynamics of Atlantic cod (Gadus morhua) on Georges Bank and Nantucket Shoals are not well understood. To address this uncertainty, we combined Fishermen's Ecological Knowledge (FEK) with traditional scientific data to develop a more holistic understanding of cod spawning on Georges Bank. Data from historical reports, trawl surveys, fisheries observers, and ichthyoplankton surveys were used to describe the spatial and temporal distribution of cod spawning activity. We also collected FEK regarding cod spawning dynamics through semi-structured interviews (n = 40). The fishermen had detailed knowledge of the spatial and temporal distribution of cod spawning, and identified persistent fine-scale (i.e. <50 km(2)) spawning grounds that were often associated with specific habitat features, including spawning grounds that were previously unreported in the scientific literature. The spawning seasons and locations identified by fishermen generally agreed with information from traditional scientific data, but it was evident that seasonal scientific surveys lack the spatial and temporal resolution needed to fully characterize the distribution of cod spawning activity. Our results will help inform management measures designed to promote the rebuilding of Georges Bank cod, and also provide a basis for further investigations of cod spawning dynamics and stock structure.
机译:人们还不太了解大西洋鳕鱼在乔治银行和楠塔基特浅滩上的产卵动态。为了解决这种不确定性,我们将渔民的生态知识(FEK)与传统的科学数据相结合,以更全面地了解乔治银行的鳕鱼产卵情况。来自历史报告,拖网调查,渔业观察员和浮游鱼类调查的数据用于描述鳕鱼产卵活动的时空分布。我们还通过半结构化访谈收集了关于鳕鱼产卵动力学的FEK(n = 40)。渔民对鳕鱼产卵的时空分布有详细的了解,并确定了经常与特定栖息地特征相关的持续的细规模产卵场(即<50 km(2)),包括以前未报告的产卵场。科学文献。渔民确定的产卵季节和地点通常与传统科学数据中的信息相符,但是很明显,季节性科学调查缺乏充分表征鳕鱼产卵活动分布所需的时空分辨率。我们的结果将有助于制定旨在促进乔治银行鳕鱼重建的管理措施,并为进一步研究鳕鱼产卵动态和种群结构提供基础。

著录项

  • 来源
    《ICES Journal of Marine Science》 |2017年第6期|1587-1601|共15页
  • 作者单位

    Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, 706 South Rodney French Blvd, New Bedford, MA 02740 USA|Massachusetts Div Marine Fisheries, 1213 Purchase St, New Bedford, MA 02740 USA;

    Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, 706 South Rodney French Blvd, New Bedford, MA 02740 USA|Massachusetts Div Marine Fisheries, 1213 Purchase St, New Bedford, MA 02740 USA;

    Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, 706 South Rodney French Blvd, New Bedford, MA 02740 USA|Rutgers State Univ, Dept Marine & Coastal Sci, 71 Dudley Rd, New Brunswick, NJ 08901 USA;

    Univ Massachusetts Dartmouth, Sch Marine Sci & Technol, 706 South Rodney French Blvd, New Bedford, MA 02740 USA;

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

    Atlantic cod; Fishermen's Ecological Knowledge; Gadus morhua; Georges Bank; spawning grounds; stock structure;

    机译:大西洋鳕;渔民的生态知识;加德摩斯;乔治银行;产卵场;种群结构;

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