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海洋科学  2010 

刺参对不同生境中沉积物粒度的选择

, PP. 11-16

Keywords: 刺参(Apostichopus,japonicus),粒度选择性,分布,摄食

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Abstract:

2009年5月26日~6月16日采集日照前三岛海域(90.67g±23.542g)、青岛胶州湾海域(53.96g±14.742g)、烟台养殖围堰(82.99g±32.942g)的刺参(Apostichopusjaponicus)。使用CILAS940L型激光粒度仪对刺参肠道内含物及自然沉积物的粒度进行分析。结果表明,野外调查中,刺参肠道内含物与表层沉积物的粒度有显著差异。刺参摄食的颗粒中,90%以上的颗粒粒径为1~80μm。刺参对沉积物颗粒粒度的选择在不同养殖系统中没有差异。正常生长阶段,刺参成体摄食的颗粒大小与刺参的体质量呈负相关。

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