Population biology of the roudi escolar Promethichthys prometheus (Gempylidae) off the Canary Islands
Population biology of the roudi escolar Promethichthys prometheus (Gempylidae) off the Canary Islands
The biology of the roudi escolar, Promethichthys prometheus, from the Canary Islands was studied. Specimens 38.3-78.9 cm in total length were captured from August 1992 to December 1993 around the islands. Male:female sex-ratio was 1:1.96. The spawning season extended from April to September with most gonadal activity in June-July. Size at first maturity was 51.9 cm for males and 52.9 cm for females. Weight grew allometrically with size. Fish from age 3 to 10 years were found. The von Bertalanffy growth parameters were L(infinity)=90.1 cm and k=0.17 yr(1). The food consisted primarily of bony fishes, followed by cephalopods and crustaceans.
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3109 Ciencias veterinarias, Peces, Conejo, Crecimiento, Fisiología, Canarias
3109 Ciencias veterinarias, Peces, Conejo, Crecimiento, Fisiología, Canarias
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