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海洋科学  2011 

春季黄海微型浮游动物对不同粒径浮游植物的摄食速率研究

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Keywords: 微型浮游动物,稀释法,摄食速率,黄海

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Abstract:

于2005年3月对黄海海域的7个站位应用稀释法研究了浮游植物的生长率和微型浮游动物对浮游植物的摄食压力。结果表明:实验期间,微型浮游动物生长速率范围在0.34~0.95d?1,浮游植物摄食速率范围在0.44~0.94d?1。微型浮游动物对浮游植物的现存量和初级生产力的摄食压力分别为47.76%~63.80%和61.50%~154.47%。分粒级研究结果显示:整个海区粒径较大的Micro级浮游植物占优势。微型浮游动物对Nano级浮游植物具有摄食偏好。相对于中国的其他海区,黄海3月份微型浮游动物的摄食速率处于中等水平。调查期间,黄海浮游植物生长速率接近微型浮游动物摄食速率,微型浮游动物在控制浮游植物生物量及黄海生态系统物质能量流动方面起到了重要的作用。

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