DESTRUCTIVE GRAZING OF KELP BY SEA-URCHINS IN EASTERN CANADA
DESTRUCTIVE GRAZING OF KELP BY SEA-URCHINS IN EASTERN CANADA
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DOI：
10.1139/f76-164
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发表时间：
1976-01-01
期刊：
影响因子：
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通讯作者：
MANN, KH
中科院分区：
文献类型：
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作者：
BREEN, PA;MANN, KH
海胆 [Strongylocentrotus droebachiensis] 对海带床的破坏已在新斯科舍省圣玛格丽特湾有记录，并且似乎也在加拿大东部的其他地区发生。海胆持续沉积在放牧区，长期阻碍海带[长海带和指状海带]和其他藻类的回归。由于海带床对沿海生产力的巨大贡献，海带大面积消失令人震惊。讨论了海胆吃草的动态。
Destruction of kelp beds by sea urchins [Strongylocentrotus droebachiensis] has been documented in St. Margaret''s Bay, Nova Scotia, and also appears to be taking place in other parts of E Canada. Continued sea urchin settlement onto grazed areas prevents the return of kelp [Laminaria longicruris and L. digitata] and other algae for long periods. Because of the large contribution of kelp beds to coastal productivity, the disappearance of kelp from large areas is alarming. Dynamics of sea urchin grazing are discussed.