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Biological observations on the gulper shark Centrophorus granulosus (Chondrichthyes: Centrophoridae) off the coast of Galicia (north-western Spain, eastern Atlantic)

Published online by Cambridge University Press:  25 March 2008

R. Bañón ,
C. Piñeiro  and
M. Casas
R. Bañón*
Affiliation:
Asociación Científica de Biología Marina ‘Augamar’, c/ Fragoso 93–5° I; 36210 Vigo, Spain
C. Piñeiro
Affiliation:
Instituto Español de Oceanografía, Apartado 1552; 36208 Vigo, Spain
M. Casas
Affiliation:
Instituto Español de Oceanografía, Apartado 1552; 36208 Vigo, Spain
*
Correspondence should be addressed to: R. Bañón Asociación Científica de Biología Marina ‘Augamar’ c/ Fragoso 93–5° I 36210 VigoSpain email: anoplogaster@yahoo.es
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Abstract

The observed Centrophorus granulosus were caught with bottom trawl and longline between 500 and 1300 m depth off the continental slope of Galicia and the Galician Bank (north-eastern Atlantic) between 1996 and 1998. The main biological data obtained were: a maximum recorded size of 166 cm TL (total length); females mature at 147 cm TL; between 1 and 10 mature oocytes by females of 55–80 mm diameter and as many as 6 pups per litter, and size at birth ranging between 35–47 cm TL. These results differ greatly from those compiled in the literature suggesting different populations or perhaps a possible misidentification.

Keywords

CentrophoridaeCentrophorus granulosusbiological observationsGalician watersnorth-eastern Atlantic
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 2 , March 2008 , pp. 411 - 414
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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