Copepods under turbulence: grazing, behavior and metabolic rates*
Copepods under turbulence: grazing, behavior and metabolic rates*
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湍流下的桡足类：放牧、行为和代谢率*
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
P. Joan
中科院分区：
文献类型：
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作者：
Lectures On Plankton;P. Joan
摘要：本文综述了小尺度湍流对桡足类浮游动物速率过程的影响及其对远洋生态系统动力学的影响。湍流的水运动提高了浮游生物和它们的食物相遇的几率，改变了桡足类和其他浮游动物对食物环境的感知。因此，它们的摄食行为受到影响，放牧率显著提高。小规模湍流对浮游桡足动物的直接影响还包括代谢能量消耗、排泄率、生长和发育率的提高。浮游生态系统的结构和功能特性是通过个体速率过程变化的复杂累积过程来改变的，这对水生系统中生物源碳的最终命运具有重要影响。
SUMMARY: This review focuses on the effects of small-scale turbulence on the rate processes of copepods, an important group of planktonic animals, and on their consequences for the dynamics of pelagic ecosystems. Turbulent water motion enhances the encounter rates between planktonic organisms and their food, changing the perception of the food environment for copepods and other planktonic animals. As a consequence, their feeding behaviour is affected, and the grazing rates significantly increased. Direct effects of small-scale turbulence for planktonic copepods also include the enhancement of metabolic energy expenditure, excretion rates, growth, and development rates. Through complex cumulative processes of the changes on individual rate-processes, the structural and functional properties of planktonic ecosystems are modified, with important consequences for the ultimate fate of biogenic carbon in aquatic systems.