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

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 b...

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Veröffentlicht in:	Environmental biology of fishes 1998-11, Vol.53 (3), p.267-273
1. Verfasser:	WIDDER, E. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Agnatha. Pisces Animal and plant ecology Animal behavior Animal, plant and microbial ecology Animals Autoecology Biological and medical sciences Bioluminescence Fundamental and applied biological sciences. Psychology Isistius brasiliensis Marine Morphology Pigments Predation Predators Sharks Vertebrata
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Beschreibung
Zusammenfassung:	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.[PUBLICATION ABSTRACT]
ISSN:	0378-1909 1573-5133
DOI:	10.1023/A:1007498915860