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首页> 外文期刊>Estuarine Coastal and Shelf Science >Spatial and temporal variability of deep-water algal assemblages in the Northwestern Mediterranean: The effects of an exceptional storm
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Spatial and temporal variability of deep-water algal assemblages in the Northwestern Mediterranean: The effects of an exceptional storm

机译:地中海西北部深水藻类组合的时空变化:一次特大风暴的影响

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摘要

There are deep-water populations of the endemic and threatened Mediterranean brown alga Cystoseira zosteroides in the Medes Islands Marine Reserve (NW Mediterranean). Here, the distribution, population structure, individual growth, mortality and recruitment rates of this species over two years are described in relation to the effects of an exceptional storm. We found a high spatial variability in the structure and dynamics of C. zosteroides populations at small geographical scales, suggesting that environmental factors acting at the population level display a key role in population size structure, mortality and recruitment. The elevated mortality rates recorded at some locations (almost 80%) is amongst the highest recorded for perennial algae as a consequence of a single storm, emphasizing the importance of episodic catastrophic events in the maintenance of these deep-water, slow-growing populations. These findings are of particular importance not only to fully understand the ecology of C. zosteroides, but also for its conservation.
机译:梅德斯群岛海洋保护区(地中海西北部)有地方性和濒临灭绝的地中海褐藻Cystoseira zosteroides的深水种群。这里,描述了该物种两年来的分布,种群结构,个体生长,死亡率和募集率,与一次特大风暴的影响有关。我们发现在较小的地理尺度上,C。zosteroides种群的结构和动力学具有很高的空间变异性,这表明在种群水平上起作用的环境因素在种群规模结构,死亡率和募集中显示出关键作用。由于一次暴风雨,某些地方记录的死亡率上升(近80%)是多年生藻类记录的最高记录之一,强调了突发性灾难事件在维持这些深水,缓慢增长的种群中的重要性。这些发现不仅对于全面了解类固醇梭菌的生态学,而且对于其保护特别重要。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2011年第1期|p.52-58|共7页
  • 作者单位

    Centre d'Estudis Avancats de Blanes - CSIC, Acc. Cala Sant Francesc 14,17300 Blanes, Spain,Departament d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain;

    Centre d'Estudis Avancats de Blanes - CSIC, Acc. Cala Sant Francesc 14,17300 Blanes, Spain;

    Departament d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain;

    Departament d'Ecologia, Facultat de Biologia, Universitat de Barcelona, Diagonal 645, 08028 Barcelona, Spain;

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

    cystoseira; deep-water algae; catastrophic event; population structure; mediterranean;

    机译:半胱氨酸深水藻类灾难性事件人口结构;地中海;

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