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Article Title

Three Brief Narrow-Band Sound Emissions by a Captive Male Risso's Dolphin, Grampus griseus

Volume

68

Issue

4

First Page

252

Last Page

256

Abstract

Illustrated with a sonagram, three brief sound emissions are described and discussed. The sounds were made by a subadult male while stranded during venipuncture. It is suggested that the emissions are fragmentary or abbreviated whistle contours. The similarity of the three phonations suggests that a "signature" may be present in the whistle of individuals of this species. The literature on vocalizations by this species is summarized.