Reproductive Parameters and Sex Cell Ultrastructure in Cinnabar Goatfish Parupeneus heptacanthus (Mullidae) from the Coastal Zone of Nha Trang (Vietnam)

Авторы: Emel’yanova N.G., Pavlov D.A., Hai Yen Dinh Thi
Журнал: Journal of Ichthyology
Том: 64
Номер: 4
Год издания: 2024
Издательство: Pleiades Publishing, Inc.
Местоположение издательства: New York, USA
Первая страница: 678
Последняя страница: 688
DOI: 10.1134/S0032945224700255
Аннотация: The size composition of the fish, gonadal condition, and oocyte and spermatozoon ultrastructure are studied in Parupeneus heptacanthus from the coastal zone of Nha Trang (southern Central Vietnam). The males are larger than the females, and the body length—body weight relationship is significantly different in the representatives of both sexes. Based on ovarian condition, oogenesis is continuous. Average batch fecundity is 11056 oocytes. The egg envelope in the end of vitellogenesis (~300 μm in diameter) includes zona radiata 5.0 μm in width and chorion (0.5 μm). Based on spermatozoon head ultrastructure, the species is similar to other species of the genus Parupeneus, but the flagellum is substantially longer reaching on average 63 μm
Добавил в систему: Емельянова Наталья Григорьевна

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