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Movements and growth of a female basking shark re-sighted after a three year period

Published online by Cambridge University Press:  04 April 2001

David W. Sims
Affiliation:
Department of Zoology, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK Marine Biological Association, The Laboratory, Citadel Hill, Plymouth, PL1 2PB, UK
Colin D. Speedie
Affiliation:
Wildlife Trusts Seaquest Project, Waterside House, Falmouth Road, Penryn, Cornwall, TR10 8BE, UK
Adrian M. Fox
Affiliation:
Department of Zoology, University of Aberdeen, Tillydrone Avenue, Aberdeen, AB24 2TZ, UK
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Abstract

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Basking shark (Cetorhinus maximus) movement patterns and growth rates over annual cycles remain entirely unknown. Here the re-sighting of a female identified by a highly distinctive first dorsal fin, after a 3·1 year period is described. Our results show this individual foraged at the surface in coastal areas off south-west England in at least two of four summer seasons and increased in total length by 2·4 m over this period. The growth increment observed was similar to that predicted from the growth model for this species.

Type
Brief Report
Copyright
© 2000 Marine Biological Association of the United Kingdom