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Geographical, seasonal occurrence and incidental fishing captures of basking shark Cetorhinus maximus (Chondricthyes: Cetorhinidae)

Published online by Cambridge University Press:  20 March 2001

Julio Valeiras
Affiliation:
Instituto Español de Oceanografía, Puerto Pesquero, s/n, Apartado 285, 29640 Fuengirola (Málaga), Spain, E-mail: julio.valeiras@ma.ieo.es Co-ordinator for Marine Mammal Study (CEMMA), Apartado 165, 36380 Gondomar (Pontevedra), Spain
Alfredo López
Affiliation:
Instituto de Investigaciones Marinas, Eduardo Cabello, 6, 36208 Vigo, Spain Co-ordinator for Marine Mammal Study (CEMMA), Apartado 165, 36380 Gondomar (Pontevedra), Spain
Manuel García
Affiliation:
Instituto Español de Oceanografía, Apartado 1552, 36280 Vigo, Spain Co-ordinator for Marine Mammal Study (CEMMA), Apartado 165, 36380 Gondomar (Pontevedra), Spain

Abstract

This is the first report on the presence of basking sharks Cetorhinus maximus in Galician waters (north-west Iberian Peninsula) from sightings, strandings and incidental catches by fishing gear. Morphometric, biological, geographic and temporal data on 19 basking sharks recorded from 1988 to 1998 are presented. Average total length is 401·4 cm. Male:female ratio is 0·6. Seventy per cent of records are from incidental fishing catches in bottom gill nets. Approximately 74% of sharks were recorded during February, March and April, which may suggest that the species occurs seasonally in this area.

Type
Short Communication
Copyright
2001 Marine Biological Association of the United Kingdom

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