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首页> 外文期刊>Estuarine Coastal and Shelf Science >Effects of HABs and a dystrophic event on zooplankton community structure in a Mediterranean lagoon (W Greece)
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Effects of HABs and a dystrophic event on zooplankton community structure in a Mediterranean lagoon (W Greece)

机译：HABS和营养不良事件在地中海泻湖中浮游植物群落结构的影响（W希腊）

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This study reports on the spatiotemporal distributions of zooplankton assemblages during two harmful algal blooms (HABs) and a dystrophic crisis in Papas lagoon (W Greece, E Mediterranean), a water body with a long history of eutmphication phenomena. The main focus is placed on the impact of toxic microalgae on the metazooplankton community structure under contrasting environmental conditions including an anoxic event. Towards this aim, we recorded environmental parameters and sampled different size components of plankton communities (micmalgae, microzooplankton and mesozooplankton) over the course of a year, in order to assess the metazooplankton assemblages (using nMDS, PERMANOVA and CCA) within a more comprehensive framework, considering lower trophic levels. HABs had a detrimental impact on all key holoplankton and meroplankton taxa regardless of environmental conditions, while their co-occurrence with anoxia resulted in the collapse of zooplankton populations. Recovery of zooplankton abundances after the compounded effects of HABs and anoxia was significantly slower in relation to the sole impact of HABs. Concerning holoplankton, dominance of egg-spawning calanoid copepods (Acartia clausi, Paracartia latisetosa) prior to the compounded extreme events shifted to smaller egg-carrying harpacticoids (Euterpina acutifrons) and cyclopoids (Oithona nana) in the recovered assemblages while in meroplankton, bivalvia larvae were largely replaced by cirripedia nauplii. These results suggested that the cumulative effects of HABs and dystrophic crises may significantly alter the taxonomic composition and size-structure of metazooplankton communities with possible harmful consequences for ecosystem functioning and fish and shellfish recruitment.
机译：本研究报告了Zooplankton集会在两个有害的藻类盛开（Habs）和爸爸泻湖（W希腊，E Mediterranean）的营养不良危机中的时空分布，水体具有悠久的eutmphical现象。主要重点放在对比环境条件下的环境条件下对统计环境疾病的群体群落结构的影响。为了实现这一目标，我们在一年中记录了环境参数和采样的浮游生物社区（Micmalgae，Microzooplant和Mesozooplankton）的不同大小组件，以便在更全面的框架内评估Metazooplankton集会（使用NMDS，Persenva和CCA） ，考虑较低的营养水平。 HABS对所有关键的Holoplankton和Meroplankton Taxa的影响有害，而不管环境条件如何，它们的共同发生与贫血的共同发生导致浮游动物群体崩溃。在Habs和缺氧的复合效果后恢复Zooplankton丰富在与Habs的唯一影响有关的情况下显着较慢。关于Holoplankton，在复合的极端事件之前，在复合的极端事件之前，鸡蛋产蛋白桡足类（Acartia Clausi，Paracartia latisetosa）的优势转移到较小的鸡蛋携带的蛋黄（Euterpina Acutifrons）和Cyperopoids（oithona nana），而在梅尔多尔兰特（Meroplankton），Bivalvia幼虫主要被Cirripedia Nauplii取代。这些结果表明，HABS和营养不良危机的累积效应可能会显着改变Metazooplankton社区的分类组成和规模结构，对生态系统功能和鱼类和贝类招募可能的有害后果。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2020年第30期|106985.1-106985.14|共14页
  • 作者

    Papantoniou Georgia; Cladas Yannis; Ketsilis-Rinis Vlasis; Vaitsi Zoi; Fragopoulu Nina;

  • 作者单位

    Hellen Ctr Marine Res HCMR Inst Marine Biol Resources & Inland Waters 46-7 Km Athens Sounio Ave Athens 19013 Greece;

    Univ Patras Dept Anim Prod Fisheries & Aquaculture Nea Ktiria 30200 Mesolonghi Greece;

    Univ Patras Dept Biol Lab Zool Patras 26504 Greece;

    Univ Patras Dept Biol Lab Zool Patras 26504 Greece;

    Univ Patras Dept Biol Lab Zool Patras 26504 Greece;

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