Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/46505
Título: On the reproduction of Octopus vulgaris off the coast of the Canary Islands
Autores/as: Hernández-García, V. 
Hernández-López, J. L.
Castro-Hdez, J. J. 
Clasificación UNESCO: 510208 Pesca
Palabras clave: Octopus vulgaris
Reproductive biology
Canary islands
Fecundity
Temperature
Fecha de publicación: 2002
Editor/a: 0165-7836
Publicación seriada: Fisheries Research 
Resumen: The common octopus, Octopus vulgaris Cuvier, 1797 is the most important cephalopod species in catches of the artisanal trap fishery in Canary Islands waters. Based on monthly samplings carried out off Gran Canaria (Canary Islands), 760 specimens of the common octopus, ranging from 4.8 to 165 mm ventral mantle length, were studied from June 1996 to July 1997, and from December 1997 to June 1999. The length–weight relationships found were W=0.0007×VML3.096 (), W=0.0007×VML3.112 (), W=0.0007×VML3.098 ( ), for all the specimens caught, males and females, respectively. The proportion of males was significantly higher than females. Males predominated in all size intervals. Males and females become sexually mature at 105 and 113 mm of VML, respectively. Maturation and spawning occur all year around, with more intensity from January to July, with a peak in April. There is a second spawning period in October–November. The number of spermatophores produced increased with length and maturity stage. The production of spermatophores by individual body weight fluctuated from 0.29 to 0.03 spermatophores/g. The number of oocytes per gram of body weight fluctuated from 108 to 465. The real fecundity oscillated between 31 and 106 eggs spawned per gram of female body weight.
URI: http://hdl.handle.net/10553/46505
ISSN: 0165-7836
DOI: 10.1016/S0165-7836(01)00341-1
Fuente: Fisheries Research [ISSN 0165-7836], v. 57, p. 197-203
Colección:Artículos
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