A predatory use of counterillumination by the squaloid shark, Isistius brasiliensis

被引:0
|
作者
Edith A. Widder
机构
[1] Harbor Branch Oceanographic Institution,
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关键词
bioluminescence; cookie-cutter shark; lure; mimic; vertical migration;
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学科分类号
摘要
A number of very unusual morphological and behavioral characteristics attributed to the cookie-cutter shark, Isistius brasiliensis, may be explained by a novel use of counterillumination. Specifically, it is proposed that a band of pigment, located beneath the jaw and bounded by ventrally directed bioluminescence, acts as a lure which mimics the search image of many upward-looking pelagic predators.
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页码:267 / 273
页数:6
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