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首页> 外文期刊>Journal of marine systems: journal of the European Association of Marine Sciences and Techniques >Multidecadal signals within co-occurring intertidal barnacles Semibalanus balanoides and Chthamalus spp. linked to the Atlantic Multidecadal Oscillation
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Multidecadal signals within co-occurring intertidal barnacles Semibalanus balanoides and Chthamalus spp. linked to the Atlantic Multidecadal Oscillation

机译：潮间带藤壶Semibalanus balanoides和Chthamalus spp内的多年代信号。与大西洋年代际振荡有关

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摘要

Few links have been established between the Atlantic Multidecadal Oscillation and long-term dynamics of marine systems due to the scarcity of sustained biological time-series with sufficient multi-decadal coverage. The abundances of co-occurring boreal and Lusitanian species of barnacle have been recorded annually at a rocky shore in Devon, southwest England since 1953. Multidecadal cycles in relative abundances of the cold-water Semibalanus balanoides and warm-water Chthamalus spp. are strongly correlated with both local sea surface temperatures, and a 'Warm Index' of barnacle abundance shows strong links to the basin-scale Atlantic Multidecadal Oscillation. In contrast there are weak or no observed relationships with the North Atlantic Oscillation for either species. The shorter lifecycle of S. balanoides compared to the chthamalids and the increase in spring and summer temperatures to which newly settled S. balanoides recruits have been exposed during the last decade are likely mechanisms by which barnacle densities are responding to low-frequency temperature variability expressed in the Atlantic Multidecadal Oscillation.
机译：由于缺乏足够的多年代际覆盖的持续生物时间序列的稀缺性，大西洋多年代际振荡与海洋系统的长期动态之间的联系很少。自1953年以来，每年在英格兰西南部德文郡的多岩石海岸上都记录到藤壶并存的北方和卢西塔尼亚物种共存。冷水Semibalanus balanoides和温水Chthamalus spp的相对丰度有数十个周期。与当地海表温度密切相关，藤壶丰度的“温暖指数”表明与盆地尺度的大西洋多年代际涛动有很强的联系。相比之下，两种物种与北大西洋涛动之间的关系均微弱或没有观察到。巴拉卡尼德氏菌的生命周期比邻苯二甲酰胺短，并且最近十年来新定居的巴拉德尼特氏菌新兵所接触的春季和夏季温度升高，可能是藤壶密度响应低频温度变异性的机制在大西洋多年代际振荡中。

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