Features of the reproductive biology of the southern blue whiting (Micromesistius australis).
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INIDEP Doc. Cient. 5 67-79.pdf
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1.326Mo
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Date
1999
Métadonnées
Afficher la notice complèteAlternative Title
Aspectos de la biología reproductiva de la polaca (Micromesistius australis).Abstract
Different features of the reproductive biology of the southern blue whiting (Micromesistius australis) are analyzed. Samples were obtained from research cruises and from commercial catches carried out between March-November 1995, in waters near Malvinas Islands. Reproductive activity of M. australis was observed between the end of July and September, southwest of Malvinas Islands. Oocyte diameter distribution of gravid females and the histological observations show that this species is a batch spawner with determinate annual fecundity. Preliminary estimate of the potential annual fecundity was about 478,000 oocytes for a 51-cm mean total length. Size at first maturity for this species was about 31 cm total length.Journal
INIDEP documento científicoVolume
5Publisher or University
Mar del Plata: Instituto Nacional de Investigación y Desarrollo PesqueroCollections