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首页> 外文期刊>ICES Journal of Marine Science >Tracking changes to a microplankton community in a North Atlantic sea loch using the microplankton index PI(mp)
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Tracking changes to a microplankton community in a North Atlantic sea loch using the microplankton index PI(mp)

机译：使用微浮游生物指数PI（mp）跟踪北大西洋海域微浮游生物群落的变化

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摘要

Microplankton plays a vital part in marine ecosystems, and its importance has been recognized by the inclusion of microplankton community composition in regulatory frameworks such as the European Water Framework Directive and the Marine Strategy Framework Directive as an indicator of ecological status. Quantitative techniques are therefore required to assess the environmental status of the microplankton in a water body. Here we demonstrate the use of a method known as the microplankton index PI(mp) to evaluate changes in the microplankton community of the west coast Scottish Sea Loch Creran. Microplankton in this fjord has been studied since the 1970s, providing a data set spanning four decades. Our analysis compares an arbitrarily chosen reference period between 1979 and 1981 with a period between 2011 and 2013 and demonstrates that between these two periods community structure has changed considerably with a substantial drop in the numbers of observed diatoms accompanied by a rise in the number of autotrophic/mixotrophic dinoflagellates as well as an increase in the potentially toxin producing genus Pseudo-nitzschia and that these are related to changes in both the intensity and timing of local patterns of precipitation. The PI(mp) is shown to be a useful and robust method to visualize and quantify changes in the underlying structure of the microplankton community and is a powerful addition to the toolbox of techniques needed to determine the health of our seas.
机译：微型浮游生物在海洋生态系统中起着至关重要的作用，其重要性已得到认可，因为将微型浮游生物的组成纳入了诸如生态系统指标欧洲水框架指令和海洋战略框架指令之类的监管框架中。因此，需要定量技术来评估水体中浮游生物的环境状况。在这里，我们演示了使用一种称为微浮游生物指数PI（mp）的方法来评估苏格兰西海岸苏格兰克伦海域微浮游生物群落的变化。自1970年代以来，对该峡湾的微浮游生物进行了研究，提供了跨越40年的数据集。我们的分析将1979年至1981年之间的任意选择的参考时期与2011年至2013年之间的时期进行了比较，结果表明，在这两个时期之间，群落结构发生了显着变化，观察到的硅藻数量大幅下降，而自养物种数量却增加了杂营养性鞭毛虫，以及可能产生毒素的假拟南芥属的增加，这些都与局部降水模式的强度和时间变化有关。 PI（mp）被证明是一种可视化和量化微浮游生物群落基础结构变化的有用且健壮的方法，并且是确定我们海洋健康所需的技术工具箱的有力补充。

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  • 来源
    《ICES Journal of Marine Science》 |2017年第1期|311-325|共15页
  • 作者

    Whyte Callum; Davidson Keith; Gilpin Linda; Mitchell Elaine; Moschonas Grigorios; McNeill Sharon; Tett Paul;

  • 作者单位

    Scottish Marine Inst Oban, Scottish Assoc Marine Sci, Microbial & Mol Biol Dept, Oban PA37 1QA, Argyll, Scotland;

    Scottish Marine Inst Oban, Scottish Assoc Marine Sci, Microbial & Mol Biol Dept, Oban PA37 1QA, Argyll, Scotland;

    Edinburgh Napier Univ, Sch Life Sport & Social Sci, 9 Sighthill Court, Edinburgh EH11 4BN, Midlothian, Scotland;

    Scottish Marine Inst Oban, Scottish Assoc Marine Sci, Microbial & Mol Biol Dept, Oban PA37 1QA, Argyll, Scotland;

    Scottish Marine Inst Oban, Scottish Assoc Marine Sci, Microbial & Mol Biol Dept, Oban PA37 1QA, Argyll, Scotland;

    Scottish Marine Inst Oban, Scottish Assoc Marine Sci, Microbial & Mol Biol Dept, Oban PA37 1QA, Argyll, Scotland;

    Scottish Marine Inst Oban, Scottish Assoc Marine Sci, Microbial & Mol Biol Dept, Oban PA37 1QA, Argyll, Scotland;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    ecological status; indices; Loch Creran; marine strategy framework directive; microplankton community index; Scotland;

    机译：生态状况指标克雷兰湖海洋战略框架指令浮游生物群落指数苏格兰;

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