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Biogeography of Isistius brasiliensis in the north-eastern Atlantic, inferred from crater wounds on swordfish (Xiphias gladius)

Published online by Cambridge University Press:  11 May 2009

R. Muñoz-Chápuli ,
J. C. Rey Salgado  and
J. M. De La Serna
R. Muñoz-Chápuli
Affiliation:
Department of Zoology, Faculty of Sciences, University of M´alaga, P.O. Box 59, 29080 M´alaga, Spain
J. C. Rey Salgado
Affiliation:
Institute Español de Oceanografia, P.O. Box 285, Fuengirola, M´alaga, Spain
J. M. De La Serna
Affiliation:
Institute Español de Oceanografia, P.O. Box 285, Fuengirola, M´alaga, Spain
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Abstract

A hypothesis about the biogeography of Isistius brasiliensis in the north-eastern Atlantic is formulated through the study of frequency, size and geographic distribution of crater wounds, produced by this shark on swordfish (Xiphias gladius) and other large pelagic vertebrates. The results suggest that the bulk of the population of adult I. brasiliensis is found between 11° N and 16° N. Probably there are nursery areas in more southern latitudes. Large individuals would be frequent northwards of 16° N parallel.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 68 , Issue 2 , May 1988 , pp. 315 - 321
Copyright
Copyright © Marine Biological Association of the United Kingdom 1988

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