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首页> 外文期刊>Fishery Bulletin >Seasonal distribution and habitat use of the common thresher shark (Alopias vulpinus) in the western North Atlantic Ocean inferred from fishery-dependent data
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Seasonal distribution and habitat use of the common thresher shark (Alopias vulpinus) in the western North Atlantic Ocean inferred from fishery-dependent data

机译:季节性分布和栖息地使用河北大西洋的普通播种者鲨鱼(AlopiasVulpinus)从渔业依赖数据推断出来

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摘要

Improved understanding of the seasonal distribution, habitat use, and fishery interactions of the common thresher shark (Alopias vulpinus) in the western North Atlantic Ocean (WNA) is required for future management. We compiled and analyzed 3478 fishery-dependent capture records in the WNA between 1964 and 2019 to examine dynamics by sex and life stage (i.e., young of the year, juvenile, and adult). Sharks were captured over a broad geographic range from the Gulf of Mexico to the Grand Banks, primarily in continental shelf waters shallower than 200 m. Seasonal north-south movements along the east coasts of the United States and Canada were observed for all life stages and both sexes, with individuals generally occurring at more northerly latitudes in the summer and more southerly latitudes in the winter. Distinct areas of more frequent capture in fisheries were identified for all life stages throughout their range. Common thresher sharks were observed in waters with sea-surface temperatures of 4-31 degrees C, most commonly of 12-18 degrees C. The results of this study will help to identify essential fish habitat for each life stage of common thresher sharks along the U.S east coast and to develop management measures for the WNA population.
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  • 来源
    《Fishery Bulletin》 |2020年第4期|共14页
  • 作者单位

    New England Aquarium Anderson Cabot Ctr Ocean Life 1 Cent Wharf Boston MA 02110 USA;

    Fisheries &

    Oceans Canada Bedford Inst Oceanog 1 Challenger Dr POB 1006 Dartmouth NS B2Y 4A2 Canada;

    Natl Marine Fisheries Serv Northeast Fisheries Sci Ctr NOAA 166 Water St Woods Hole MA 02543 USA;

    Natl Marine Fisheries Serv Northeast Fisheries Sci Ctr NOAA 28 Tarzwell Dr Narragansett RI 02882 USA;

    Natl Marine Fisheries Serv Northeast Fisheries Sci Ctr NOAA 28 Tarzwell Dr Narragansett RI 02882 USA;

    Natl Marine Fisheries Serv Integrated Stat Northeast Fisheries Sci Ctr NOAA 16 Sumner St Woods Hole MA 02543 USA;

    Massachusetts Div Marine Fisheries New Bedford Off 836 South Rodney French Blvd New Bedford MA 02744 USA;

    Natl Marine Fisheries Serv Northeast Fisheries Sci Ctr NOAA 28 Tarzwell Dr Narragansett RI 02882 USA;

    Univ Massachusetts Dartmouth 285 Old Westport Rd Dartmouth MA 02747 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水产、渔业;
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