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首页> 外文会议>North Pacific Anadromous Fish Commission bulletin >Juvenile Pink and Chum Salmon Distribution, Diet, and Growth in the Northern Bering and Chukchi Seas
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Juvenile Pink and Chum Salmon Distribution, Diet, and Growth in the Northern Bering and Chukchi Seas

机译：白令北部和楚科奇海地区幼体粉红鲑鱼和鲑鱼的分布，饮食和生长

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摘要

Loss of non-seasonal sea ice and a general warming trend in the Bering Sea has altered the composition, distribution, and abundance of marine organisms inhabiting the region. Juvenile pink (Oncorhynchus gorbuscha) and chum (O. keta) salmon were found in significant numbers throughout the Chukchi Sea and Bering Strait regions during early autumn 2007, reflecting significant utilization of Arctic marine habitat by Pacific salmon. Linear models of juvenile pink and chum salmon body size corrected for Day of Year were parameterized to estimate daily growth rates and habitat-specific differences in body size using 6 years of survey data. Model results revealed that juvenile pink salmon inhabiting the eastern Bering Sea grew at an average rate of 1.17 mmday~(-1) and juvenile chum salmon grew at a rate of 1.21 mmday~(-1). The U.S. BASIS survey area was expanded northward to include the Chukchi Sea during 2007, where larger juvenile pink and chum salmon were found in higher abundances relative to pink and chum inhabiting the eastern Bering Sea. Food habits analyses revealed that juvenile pink and chum salmon fed upon high energy prey in the Chukchi Sea, and that the majority of chum salmon encountered there were from either Alaskan or Russian stocks.
机译：非季节性海冰的丧失和白令海的总体变暖趋势已经改变了居住在该地区的海洋生物的组成，分布和数量。在2007年秋初的整个楚科奇海和白令海峡地区，发现了大量的粉红色（Oncorhynchus gorbuscha）和chum（O。keta）鲑鱼，这反映了太平洋鲑鱼对北极海洋栖息地的大量利用。设置了针对一年中的白天校正的粉红色和成年鲑的体重的线性模型的参数，以使用6年的调查数据来估计每日的增长率和特定于栖息地的体重差异。模型结果表明，居住在白令海东部的粉红色鲑鱼幼鱼以1.17 mmday〜（-1）的平均速率增长，而幼鲑则以1.21 mmday〜（-1）的速率增长。美国BASIS调查区域在2007年向北扩展到楚科奇海，在此发现相对于白令海东部栖息的较大的粉红色和chum鲑，较大的幼粉红色和chum鲑鱼。饮食习惯分析表明，在楚科奇海捕食高能量猎物的幼粉红色和成群鲑鱼，在那里遇到的大多数成群鲑鱼来自阿拉斯加或俄罗斯种群。

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  • 来源
  • 会议地点 Seattle WA(US);Seattle WA(US)
  • 作者

    Jamal H. Moss; James M. Murphy; Edward V. Farley; Lisa B. Eisner; Alexander G. Andrews;

  • 作者单位

    Ted Stevens Marine Research Institute, Auke Bay Laboratories,Alaska Fisheries Science Center, NOAA Fisheries,17109 Point Lena Loop Road, Juneau, AK 99801, USA;

    Ted Stevens Marine Research Institute, Auke Bay Laboratories,Alaska Fisheries Science Center, NOAA Fisheries,17109 Point Lena Loop Road, Juneau, AK 99801, USA;

    Ted Stevens Marine Research Institute, Auke Bay Laboratories,Alaska Fisheries Science Center, NOAA Fisheries,17109 Point Lena Loop Road, Juneau, AK 99801, USA;

    Ted Stevens Marine Research Institute, Auke Bay Laboratories,Alaska Fisheries Science Center, NOAA Fisheries,17109 Point Lena Loop Road, Juneau, AK 99801, USA;

    Ted Stevens Marine Research Institute, Auke Bay Laboratories,Alaska Fisheries Science Center, NOAA Fisheries,17109 Point Lena Loop Road, Juneau, AK 99801, USA;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海水鱼;
  • 关键词

    pink salmon; chum salmon; Chukchi Sea; eastern Bering Sea; growth;

    机译：粉红鲑鱼鲑鱼楚科奇海；白令海东部；成长;

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