Evaluation of coastal upwelling effects on phytoplankton growth by simulated culture experiments
Evaluation of coastal upwelling effects on phytoplankton growth by simulated culture experiments
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模拟培养实验评价沿海上升流对浮游植物生长的影响
DOI：
10.1007/bf00393028
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发表时间：
1983
期刊：
影响因子：
2.4
通讯作者：
S. Ichimura
中科院分区：
文献类型：
--
作者：
Joji Ishizaka;M. Takahashi;S. Ichimura
通过9个近岸上升流模拟培养实验，研究了次表层水上升流对浮游植物生长的影响。特别注意的是，营养丰富的地下水的上升流和暴露的地下植物浮游生物的表面辐射的营养富集的影响。结果表明：浮游植物生长的滞后期与水温呈负相关;浮游植物的最大产量与可利用的初始营养盐量成正比;浮游植物的比生长率是初始营养盐浓度和水温的函数;最大比生长率与水温成正比。根据所建立的关系，提出了一个简单的估算上升流中浮游植物生长的方程。上升流水团浮游植物群落的物种演替也被考虑在内。
Upwelling effects of subsurface water on phytoplankton growth were evaluated by 9 simulated culture experiments of coastal upwelling. Particular attention was paid to the effects of nutrient enrichment on the surface phytoplankton by the upwelling of nutrient rich subsurface water and of the exposure of the subsurface phytoplankters to surface radiation. The following are the results obtained: the lag period of phytoplankton growth was inversely related to water temperature; the maximum yield of phytoplankton was proportional to the amounts of available initial nutrients; the specific growth rates of phytoplankton were a function of both the initial nutrient concentrations and water temperature; and the maximum specific growth rate was simply proportional to water temperature. According to the relations found, a simple equation is presented for the estimation of phytoplankton growth in a given upwelling. Succession of species in the phytoplankton assemblage in upwelled water mass was also taken into consideration.