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Phase transition in recruitment and distribution of monkfish (Lophius piscatorius) in Icelandic waters

机译：招募和分布冰岛水域安康鱼（Lophius piscatorius）的相变

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摘要

The abundance and distribution of monkfish (Lophius piscatorius) at Iceland have increased rapidly in the last decade, concurrent with rising seawater temperatures and salinity. These environmental changes seem to have improved the reproductive success of the monkfish stock, and since 1998 large cohorts have recruited almost annually, in great contrast to at least 15 years prior to that. The study indicates that the transition in recruitment could be mediated by the direct effects of expanded nursery and feeding habitat through elevated temperatures. Other factors are likely to be involved, such as a more favourable egg and larval drift resulting from a changed inflow of surface water from spawning to nursery areas. A proportion of the monkfish stock in Icelandic waters may originate from distant areas, either by means of larval drift or active migration of larger fish.
机译：在过去的十年中，冰岛的安康鱼（Lophius piscatorius）的丰度和分布迅速增加，同时海水温度和盐度也不断上升。这些环境变化似乎改善了安康鱼种群的繁殖成功，并且自1998年以来，几乎每年都招募大型队列，这与至少在此之前的15年形成了鲜明的对比。研究表明，招募过渡可能是由扩大的苗圃和通过升高温度喂养栖息地的直接作用所介导的。可能涉及其他因素，例如从产卵区到育苗区的地表水流入量的变化导致更有利的卵和幼虫漂移。冰岛水域中的一部分安康鱼种群可能来自幼鱼，这可能是由于幼虫漂流或较大鱼类的主动迁移造成的。

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  • 来源
    《Marine biology》 |2010年第2期|295-305|共11页
  • 作者

    Jon Solmundsson; Einar Jonsson; Hoskuldur Bjornsson;

  • 作者单位

    Marine Research Institute, Skulagata 4, PO Box 1390, 121 Reykjavik, Iceland;

    rnMarine Research Institute, Skulagata 4, PO Box 1390, 121 Reykjavik, Iceland;

    rnMarine Research Institute, Skulagata 4, PO Box 1390, 121 Reykjavik, Iceland;

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