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首页> 外文期刊>Polar biology >Seasonal abundance, distribution, and growth of the early life stages of polar cod (Boreogadus saida) and saffron cod (Eleginus gracilis) in the US Arctic
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Seasonal abundance, distribution, and growth of the early life stages of polar cod (Boreogadus saida) and saffron cod (Eleginus gracilis) in the US Arctic

机译：季节性的丰富，分布和增长极性鳕鱼（Boreogadus Seada）和藏红花鳕鱼（Eleginus Gracilis）在美国北极

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摘要

Polar cod and saffron cod are dominant components of the fish community in the Chukchi Sea and are ecologically important forage fishes linking plankton to upper-level consumers. In 2017, we conducted a study as part of the Arctic Integrated Ecosystem Research Program to characterize the distribution, abundance, and growth of polar cod and saffron cod early life history stages (ELHS) in late spring and late summer in the Chukchi Sea. Ship-based plankton tows showed that polar cod and saffron cod larvae were centered in Kotzebue Sound in the late spring. By late summer, polar cod juveniles were most abundant in the offshore areas of the northern Chukchi Sea, whereas saffron cod were distributed nearshore in the southern Chukchi Sea around Cape Lisburne. Empirical fish collections were paired with an individual-based biophysical transport model to examine connectivity and relate changes in seasonal distribution to potential environmental variables. Modeled drift trajectories and growth in spring for polar cod and saffron cod matched well with empirical observations, especially along the northern coastline of Kotzebue Sound, offshore of Point Hope/Cape Lisburne. Given the coherence between modeled and observed distributions, Kotzebue Sound is likely a source of gadid ELHS in the nearshore areas of the Chukchi Sea and offshore of Cape Lisburne/Point Hope, although it is not the likely source of polar cod over Hanna Shoal in the late summer. This is the first study to examine seasonal distribution, abundance, and growth of polar cod and saffron cod in the US Arctic and provides data necessary to evaluate the impacts of climate change on forage fishes in the Arctic.
机译：Polar Cod和Saffron Cod是Chukchi海中鱼群的主导组成部分，是与浮游生物连接到上层消费者的生态上重要的牧草。 2017年，我们进行了一项研究，作为北极综合生态系统研究计划的一部分，以表征极鳕鱼和藏红花鳕鱼早期生命历史阶段（埃略）在春季和夏季深夜的分布，丰裕和增长。船舶的浮游赛截头表明，极性鳕鱼和藏红花鳕鱼幼虫在晚春天的Kotzebue声音中居中。到夏末，北楚奇海近海地区的极地鳕鱼少年最丰富，而藏红花鳕鱼是在南·莱卡湾南部的楚科希海分布近岸。经验性鱼收集与基于个体的生物物理传输模型配对，以检查连接，并将季节性分布的变化与潜在的环境变量相关联。春天的模型漂移轨迹和春季增长与藏红花鳕鱼与实证观测相匹配，特别是沿着Kotzebue Sound的北部海岸线，近海希望/普氏莱卡岛。鉴于建模和观察到的分布之间的一致性，KOTZEBUE声音很可能是Chukchi海的近岸地区的雷迪德·埃拉斯的来源，虽然它并不是汉纳浅滩的可能性鳕鱼来源夏末。这是研究美国北极地区季节性分布，丰度和藏红花鳕鱼的季节性分布，丰度和生长的研究，并提供评估气候变化对北极饲料鱼类的影响所需的数据。

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  • 来源
    《Polar biology》 |2021年第11期|2055-2076|共22页
  • 作者

    Deary A. L.; Vestfals C. D.; Mueter F. J.; Logerwell E. A.; Goldstein E. D.; Stabeno P. J.; Danielson S. L.; Hopcroft R. R.; Duffy-Anderson J. T.;

  • 作者单位

    NOAA Alaska Fisheries Sci Ctr 7600 Sand Point Way NE Seattle WA 98115 USA;

    Univ Alaska Fairbanks Coll Fisheries & Ocean Sci Hatfield Marine Sci Ctr Newport OR 97365 USA;

    Univ Alaska Coll Fisheries & Ocean Sci 17103 Point Lena Loop Rd Juneau AK 99801 USA;

    NOAA Alaska Fisheries Sci Ctr 7600 Sand Point Way NE Seattle WA 98115 USA;

    NOAA Alaska Fisheries Sci Ctr 7600 Sand Point Way NE Seattle WA 98115 USA;

    NOAA Pacific Marine Environm Lab 7600 Sand Point Way NE Seattle WA 98115 USA;

    Univ Alaska Fairbanks Coll Fisheries & Ocean Sci Fairbanks AK 99775 USA;

    Univ Alaska Fairbanks Coll Fisheries & Ocean Sci Fairbanks AK 99775 USA;

    NOAA Alaska Fisheries Sci Ctr 7600 Sand Point Way NE Seattle WA 98115 USA;

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  • 正文语种 eng
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  • 关键词

    Gadidae; Ichthyoplankton; Forage fishes; Chukchi Sea; Arctic cod;

    机译：Gadidae;Ichthyoplankton;牧草鱼类;Chukchi海;北极鳕鱼;

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