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Cephalopod Beaks from the Stomachs of Two Northern Bottlenosed Whales (Hyperoodon Ampullatus)

Published online by Cambridge University Press:  11 May 2009

Malcolm R. Clarke  and
Thomas K. Kristensen
Malcolm R. Clarke
Affiliation:
The Laboratory, Marine Biological Association, Citadel Hill, Plymouth
Thomas K. Kristensen
Affiliation:
Zoological Museum, Universitetsparken 15, DK 2100, Copenhagen, Denmark
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Extract

This is the first detailed analysis of cephalopod beaks from the stomach of a northern bottlenosed whale, Hyperoodon ampullatus (Forster, 1770). The digestive action of many predators barely affects the chitinous beaks of cephalopods and some cetaceans accumulate the beaks in considerable numbers in their stomachs. The present beaks are clean and unbroken.

Identification of cephalopod beaks from stomachs of predators such as sperm whales (see Clarke, 1977), seals (Clarke & Trillmich, 1980) and albatrosses (Clarke, Croxall & Prince, 1980) throws considerable light on the biology and relative ecological importance of the species of cephalopods concerned as well as providing useful information on the diet of the predators.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 60 , Issue 1 , February 1980 , pp. 151 - 156
Copyright
Copyright © Marine Biological Association of the United Kingdom 1980

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