Ovarian development, spawning season, size at maturity and fecundity of Acentrogobius viridipunctatus (Valenciennes, 1837) in the Vietnamese Mekong Delta

PeerJ

article

Quang Minh Dinh¹  Ton Huu Duc Nguyen¹  Ngon Trong Truong²  Diep Xuan Doan³  Tien Thi Kieu Nguyen⁴ 

[1] Department of Biology, School of Education, Can Tho University;Department of Molecular Biotechnology, Biotechnology Research and Development Institute, Can Tho University;Medicinal Chemistry, Hi-tech Agriculture & Bioactive Compounds Research Group, School of Engineering and Technology, Van Lang University;Department of Biology, An Khanh High School

关键词: Multi-spawner;    Ovary;    Size at first maturity;    Spotted green goby;   

DOI  :  10.7717/peerj.14077

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

This present study provides an overview of the reproductive traits, including ovarian development, spawning season, size at maturity (Lm), and fecundity of Acentrogobius viridipunctatus – a high economic value fish in the Vietnamese Mekong Delta (VMD). A total of 432 females were collected using trawl nets from January to December 2020 at four sites, including Long Huu-Tra Vinh (LHTV), Trung Binh-Soc Trang (TBST), Dien Hai-Bac Lieu (DHBL), and Tan Thuan-Ca Mau (TTCM). The ovarian diameter was seen to increase from 2.09 (stage I) to 6.57 mm (stage V). Histological analysis showed that the goby was a multi-spawner due to the different oocyte stages found in stages IV and V of ovaries. It can release eggs all year-round due to the monthly appearance of ovarian stages IV and V during the study period, with the main peak in the 2–4 months of the wet season noted with the highest value of gonadosomatic index at that time. The LmLm.

【 授权许可】

CC BY