Climate variability and multi-decadal diatom abundance in the Northeast Atlantic

Climate variability and multi-decadal diatom abundance in the Northeast Atlantic
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东北大西洋的气候变化和数十年硅藻丰度

DOI:
10.1038/s43247-022-00492-9
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发表时间:
2022
影响因子:
7.9
通讯作者:
Edwards M
Edwards M
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
Edwards M

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硅藻是海洋初级生产和海洋碳循环的重要贡献者。在北大西洋及其邻近海域,硅藻是初级生产的驱动力,硅藻将生产的能量的很大一部分转移到较高的营养水平,并将碳转移到深海。人为变暖和气候变化可能会对这些真核浮游植物的生产力和空间动态产生重要影响。使用东北大西洋和北海的数十年硅藻丰度数据(>60年),我们显示了硅藻和气候变率之间在这些尺度上的显著时空相关性。一个一般的多年代际趋势是建立在气候变暖增加硅藻种群在北方系统,但在更南方的系统减少人口。我们发现硅藻丰度的主要相移与20世纪90年代中期后发生的大西洋气候变化的数十年趋势同步。
Diatoms are important contributors to marine primary production and the ocean carbon cycle. In the North Atlantic and its adjacent seas primary production is driven by diatoms that transfer a significant part of the produced energy to higher trophic levels and carbon to the deep ocean. Anthropogenic warming and climate variability will likely have important consequences for the productivity and spatial dynamics of these eukaryotic phytoplankton. Using multidecadal diatom abundance data (>60 years) for the Northeast Atlantic and the North Sea, we show significant spatial and temporal correlations over these scales between diatoms and climate variability. A general multidecadal trend is established where climate warming is increasing diatom populations in northerly systems but decreasing populations in more southerly systems. We discover major phase shifts in diatom abundance synchronous with multi-decadal trends in Atlantic climate variability that occurred after the mid-1990s.
DOI: 10.1038/s42003-021-02159-1
发表时间: 2021-05-31
影响因子: 5.9
作者:
Edwards M;Hélaouët P;Goberville E;Lindley A;Tarling GA;Burrows MT;Atkinson A
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