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    On reproduction of Electrona carlsbergi Tåning

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    Numéro du document:
    WG-FSA-90/20
    Auteur(s):
    G.P. Mazhirina (USSR)
    Soumis par:
    Approuvé par:
    Admin Admin (Secrétariat de la CCAMLR)
    Point(s) de l'ordre du jour
    Résumé

    A subject of the present study is Electrona carlsbergi from the Atlantic sector of the Southern Ocean. Results from histological examination of gonads are presented. From materials available it has been ascertained that Electrona carlsbergi breeds in the notal zone. The ripening of females begins at body length of 76-78 mm. Vitellogenesis is asynchronous. Vitelline eggs have a diameter from 150 to 650μm, and it reaches 900μm in hydrated oocytes. Maturation of ovaries is continuous, the spawning is serial. The spawning season is extended and coincides with the summer-autumn period.