Periodic changes in the zooplankton of the North Sea during the twentieth century linked to oceanic inflow
Periodic changes in the zooplankton of the North Sea during the twentieth century linked to oceanic inflow
复制标题
二十世纪北海浮游动物的周期性变化与海洋流入有关
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
D. Stevens
中科院分区：
文献类型：
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作者：
P. C. Reid;M. Edwards;G. Beaugrand;M. Skogen;D. Stevens
据估计，海洋流入贡献了北海90%以上的营养物质输入。因此，流入水的体积、化学性质、生物含量和来源的变化可能对北海生态系统产生相当大的影响。浮游生物，特别是Calanus finmarchicus和Calanus helgolandicus，在过去的40年中，通过连续浮游生物记录仪调查测量，可以确定明显的时期，似乎与流入量的变化有关。挪威奥克尼和乌齐拉之间断面的入流和出流以及净流量（波罗的海出流、径流和海峡入流的总和）的月度估计值已从NORWECOM模型的运行中得出，两个集成深度间隔为：表面至150 m和>150 m。对1958 - 1999年期间的物理模式输出和浮游生物结果进行了比较。不同的浮游生物时期，似乎反映不断变化的流入事件进行了讨论，水文气象和早期的浮游生物研究在过去的100年左右。
Oceanic inflow is estimated to contribute more than 90% of the nutrient input into the North Sea. Variability in the volume, chemical properties, biological content and source of the inflowing water is thus likely to have a considerable effect on North Sea ecosystems. Changes seen in the plankton, and in particular Calanus finmarchicus and Calanus helgolandicus, over the last 40 years as measured by the Continuous Plankton Recorder survey, allow clear periods to be identified that appear to be associated with variability in inflow. Monthly estimates of inflow and outflow across a section between Orkney and Utsira in Norway as well as netflow (sum of Baltic outflow, runoff and Channel inflow), have been derived from runs of the NORWECOM model for two integrated depth intervals: surface to 150 m and >150 m. A comparison is made between the physical model output and plankton results for the period 1958‐99. Distinct plankton periods that appear to reflect changing inflow events are discussed in relation to hydrometeorological and earlier plankton studies over approximately the last 100 years.