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首页> 外文期刊>Polar biology >Pelagic fish and zooplankton species assemblages in relation to water mass characteristics in the northern Bering and southeast Chukchi seas
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Pelagic fish and zooplankton species assemblages in relation to water mass characteristics in the northern Bering and southeast Chukchi seas

机译：白令北部和楚科奇海南部与水质特征相关的浮游鱼类和浮游动物种类组合

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摘要

This research explores the distributions and community composition of pelagic species in the sub-Arctic and Arctic waters of the northern Bering and central and southern Chukchi seas during September 2007 by linking pelagic zooplankton and fish assemblages to water masses. Juvenile saffron cod (Eleginus gracilis), polar cod (Bore-ogadus saida), and shorthorn sculpin (Myoxocephalus scorpius) were most abundant in warm, low salinity Alaska Coastal Water (ACW) of the central Chukchi Sea, characterized by low chlorophyll, low nutrients, and small zooplankton taxa. Adult Pacific herring (Clupea pallasii) were more abundant in the less stratified Bering Strait waters and in the colder, saltier Bering Shelf Water of the northern Bering and southern Chukchi seas, characterized by high chlorophyll, high nutrients, and larger zooplankton taxa. Juvenile pink (Oncorhynchus gorbuscha) and chum (O. keta) salmon were most abundant in the less stratified ACW in the central Chukchi Sea and Bering Strait. Abundances of large zooplankton were dominated by copepods (Eucalanus bungii, Calanus glacialis/marshallae, Metridia pacifica) followed by euphausiids (juvenile Thysanoessa raschii and unidentified taxa), whereas small zooplankton were dominated by bivalve larvae and copepods (Centro-pages abdominalis, Oithona similis, Pseudocalanus sp.). Pelagic community composition was related to environmental factors, with highest correlations between bottom salinity and large zooplankton taxa, and latitude and fish species. These data were collected in a year with strong northward retreat of summer sea ice and therefore provide a baseline for assessing the effects of future climate warming on pelagic ecosystems in sub-Arctic and Arctic regions.
机译：这项研究通过将浮游浮游动物和鱼类组合与水团联系起来，探讨了白令北部和北极楚科奇海的北极和北极水域和中下游南部楚科奇海的浮游物种的分布和群落组成。在楚科奇海中部低盐度的温暖阿拉斯加沿海水域（ACW）中，少年藏红花鳕鱼（Eleginus gracilis），极地鳕鱼（Bore-ogadus saida）和短角horn（Myoxocephalus scorpius）含量最高。营养成分和小型浮游动物类群。成年太平洋鲱鱼（Clupea pallasii）在较不分层的白令海峡水域以及白令北部和楚科奇海南部较冷，较咸的白令架水中含量较高，其特征在于叶绿素含量高，营养成分丰富且浮游动物的分类单元较大。在楚科奇海中部和白令海峡中，未分层的ACW中，幼鱼（Oncorhynchus gorbuscha）和chum（O。keta）鲑鱼最为丰富。大型浮游动物以co足类动物为主（E桉、,鱼/ marshallae，Metridia pacifica），其次是e虫（幼体Thysanoessa raschii和未识别的类群），而小型浮游动物则以双壳类幼虫（腹鳍幼虫和co足类、,足类）为主，Pseudocalanus sp。）。浮游鱼类的群落组成与环境因素有关，其底部盐度与大型浮游生物类群以及纬度和鱼类之间的相关性最高。这些数据是在夏季海冰向北撤退强烈的一年中收集的，因此为评估未来气候变暖对亚北极和北极地区中上层生态系统的影响提供了基准。

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  • 来源
    《Polar biology》 |2013年第1期|87-113|共27页
  • 作者

    Lisa Eisner; Nicola Hillgruber; Ellen Martinson; Jacek Maselko;

  • 作者单位

    Auke Bay Laboratories, Alaska Fisheries Science Center,National Marine Fisheries Service (NOAA), Ted Stevens Marine Research Institute, 17109 Pt. Lena Loop Road,Juneau, AK 99801, USA;

    School of Fisheries and Ocean Sciences, University of Alaska Fairbanks, 17101 Pt. Lena Loop Road, Juneau, AK 99801, USA,Institute of Fisheries Ecology, Thiinen Institut,Wulfsdorfer Weg 204, 22926 Ahrensburg, Germany;

    Auke Bay Laboratories, Alaska Fisheries Science Center,National Marine Fisheries Service (NOAA), Ted Stevens Marine Research Institute, 17109 Pt. Lena Loop Road,Juneau, AK 99801, USA;

    Auke Bay Laboratories, Alaska Fisheries Science Center,National Marine Fisheries Service (NOAA), Ted Stevens Marine Research Institute, 17109 Pt. Lena Loop Road,Juneau, AK 99801, USA;

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

    arctic; bering sea; chukchi sea; community composition; water mass characteristics; zooplankton distribution; polar cod; pelagic fish;

    机译：北极;白令海;楚科奇海社区组成;水质特征;浮游动物分布;极鳕鱼远洋鱼类;

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