Movement and feeding activity of red sea urchins (Strongylocentrotus franciscanus) adjacent to a kelp forest
Movement and feeding activity of red sea urchins (Strongylocentrotus franciscanus) adjacent to a kelp forest
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邻近海带森林的红海胆 (Strongylocentrotus franciscanus) 的运动和摄食活动
DOI：
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发表时间：
1976
期刊：
影响因子：
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通讯作者：
J. Pearse
中科院分区：
文献类型：
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作者：
J. E. Mattison;J. Trent;A. Shanks;T. Akin;J. Pearse
我们研究了红海胆群的运动和摄食。红海胆群名叫franciscanus Strongylocentrotus (Agassiz, 1863)，发现于美国加利福尼亚州圣克鲁斯近海的一片海带森林内并立即向海。海胆在海带森林内的平均移动距离为7.5厘米/天，而在海带森林外15米和100米处的平均移动距离超过50厘米/天。海胆的取食率从海带林内的66%下降到海带林外15 m和100 m处的16%和15%。这些数据表明，这些海胆的迁徙是对食物供应不足的一种反应。
Movement and feeding were studied in a population of red sea urchins, Strongylocentrotus franciscanus (Agassiz, 1863), found within and immediately seaward of a kelp forest offshore from Santa Cruz, California, USA. Mean sea urchin movements varied from 7.5 cm/day inside the kelp forest to over 50 cm/day at 15 and 100 m outside the kelp forest. The percentage of sea urchins feeding decreased from 66% inside the kelp forest to 16 and 15% at 15 and 100 m outside the kelp forest. These data indicate that movement by these sea urchins is a response to a low food supply.