Long-term trends in calcifying plankton and pH in the North Sea.
Long-term trends in calcifying plankton and pH in the North Sea.
复制标题
北海钙化浮游生物和pH的长期趋势。
DOI：
10.1371/journal.pone.0061175
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Hall-Spencer JM
中科院分区：
文献类型：
--
作者：
Beare D;McQuatters-Gollop A;van der Hammen T;Machiels M;Teoh SJ;Hall-Spencer JM
六个钙化浮游生物群和pH值之间的关系进行了探讨，在一个高度生物生产力和数据丰富的地区，北海中部使用时间序列数据集。长期趋势显示，有孔虫、颗石藻和棘皮动物幼虫的丰度在过去几十年中有所上升，而双壳类和翼足类的丰度有所下降。尽管研究区域的pH值数据覆盖面很好，但这一历史数据集的质量存在不确定性;自20世纪90年代中期以来，pH值似乎一直在下降，但钙化浮游生物的丰度与pH值趋势之间没有统计联系。如果pH值对北海的钙化浮游生物有任何影响，它们似乎被其他气候（如温度）、化学（营养浓度）和生物（捕食）驱动因素的综合影响所掩盖。某些钙化的浮游生物在北海中部增殖，并且能够耐受自20世纪50年代以来发生的pH值变化，但双壳类幼虫和翼足类动物已经减少。需要改进监测方案，因为海洋酸化的速度可能超过许多水生生物分类群的环境生态位，考验它们的适应和遗传适应能力。
Relationships between six calcifying plankton groups and pH are explored in a highly biologically productive and data-rich area of the central North Sea using time-series datasets. The long-term trends show that abundances of foraminiferans, coccolithophores, and echinoderm larvae have risen over the last few decades while the abundances of bivalves and pteropods have declined. Despite good coverage of pH data for the study area there is uncertainty over the quality of this historical dataset; pH appears to have been declining since the mid 1990s but there was no statistical connection between the abundance of the calcifying plankton and the pH trends. If there are any effects of pH on calcifying plankton in the North Sea they appear to be masked by the combined effects of other climatic (e.g. temperature), chemical (nutrient concentrations) and biotic (predation) drivers. Certain calcified plankton have proliferated in the central North Sea, and are tolerant of changes in pH that have occurred since the 1950s but bivalve larvae and pteropods have declined. An improved monitoring programme is required as ocean acidification may be occurring at a rate that will exceed the environmental niches of numerous planktonic taxa, testing their capacities for acclimation and genetic adaptation.
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影响因子：
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