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Gonadal Condition, Sperm Motility, and Initial Stages of Embryonic Development in Freckled Goatfish Upeneus tragula (Mullidae)статья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 22 ноября 2015 г.
- Авторы: Emel'yanova N.G., Pavlov D.A., Bich Thuan Luong Thi, Vo Thi Ha
- Журнал: Journal of Ichthyology
- Том: 55
- Номер: 2
- Год издания: 2015
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 240
- Последняя страница: 250
- DOI: 10.1134/S0032945215020046
- Аннотация: Development of sex cells, sperm motility, and initial stages of embryonic development are described in a tropical representative of the family Mullidae, freckled goatfish Upeneus tragula, from the coastal zone of Vietnam. In Nha Trang Bay, the gonads in the majority of sexually mature females are at IV, IV–V, and VI–IV maturity stages over the entire year , and the type of oogenesis is continuous. Anomalous structure of oocytes is registered in 15% of investigated females. In Ha Long Bay, the gonads of almost all sex ually mature females are at maturity stage II in December. In adult males, spermatozoa are the most numer ous in elongated spermiducts. Based on computerassisted analysis of motility of spermatozoa removed from a spermiduct and activated in marine water, sperm velocity reaches 53 µm/s in 1 min after activation, and the duration of progressive movements of spermatozoa does not exceed 5 min.
- Добавил в систему: Павлов Дмитрий Александрович