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首页> 外文期刊>Estuarine Coastal and Shelf Science >Seaweed assemblage changes in the eastern Cantabrian Sea and their potential relationship to climate change
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Seaweed assemblage changes in the eastern Cantabrian Sea and their potential relationship to climate change

机译：坎塔布连海东部的海藻组合变化及其与气候变化的潜在关系

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摘要

Rising sea-surface temperatures (SSTs) over the last three decades in the south-eastern part of the Bay of Biscay could be affecting phytobenthic assemblage distributions. This study assesses recent changes in species abundance and diversity along the western Basque coast by studying 18 locations in summer 1991 and in 2008. There were substantial changes in the structure of subtidal vegetation between the two surveys: 1) an increase in coralline algae; 2) changes in the distribution patterns of the canopy species; 3) disappearance of kelps; 4) increases in warm-water species, mainly morphologically simple forms; 5) introduction and expansion of non-indigenous species, and 6) increases in species richness and diversity. These results are consistent with the rise detected in SST, particularly in summer when SST was found to have risen by as much as 1 °C from 1980 to 2008. Furthermore, two extreme warming events occurred in the summers of 2003 and 2006. However, some biological shifts cannot be explained by warmer waters alone. Only limited data are available on changes in nutrient concentrations and water transparency, but these factors are also thought to be involved in the biological changes detected.
机译：在比斯开湾的东南部，近三十年来海表温度（SSTs）上升可能会影响植物底栖动物的分布。这项研究通过研究1991年夏季和2008年的18个地点，评估了巴斯克西部沿海地区物种丰富度和多样性的近期变化。两次调查之间，潮下带植被的结构发生了实质性变化：1）珊瑚藻类增加； 2）冠层树种分布格局的变化； 3）海带消失； 4）温水种类增加，主要是形态简单的形式； 5）非本地物种的引进和扩展，以及6）物种丰富度和多样性的增加。这些结果与SST的升高是一致的，特别是在夏季，当发现SST从1980年到2008年升高了1°C时。此外，在2003年和2006年的夏天发生了两次极端变暖事件。不能仅靠温暖的水来解释某些生物学变化。关于营养物浓度和水透明度的变化只有有限的数据，但是这些因素也被认为与所检测到的生物变化有关。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2012年第1期|p.108-120|共13页
  • 作者

    I. Diez; N. Muguerza; A. Santolaria; U. Ganzedo; J.M. Gorostiaga;

  • 作者单位

    Department of Plant Biology and Ecology, University of the Basque Country, PO Box 644, 48080 Bilbao, Spain;

    Department of Plant Biology and Ecology, University of the Basque Country, PO Box 644, 48080 Bilbao, Spain;

    Department of Plant Biology and Ecology, University of the Basque Country, PO Box 644, 48080 Bilbao, Spain;

    Department of Plant Biology and Ecology, University of the Basque Country, PO Box 644, 48080 Bilbao, Spain;

    Department of Plant Biology and Ecology, University of the Basque Country, PO Box 644, 48080 Bilbao, Spain;

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  • 正文语种 eng
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  • 关键词

    Bay of Biscay; diversity; global warming; indicators of change; macroalgae; subtidal vegetation;

    机译：比斯开湾;多样性全球暖化;变化指标;大型藻类潮下植被;

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