Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam
The present study contributes information to the testicular development and reproductive aspects of Glossogobius giuris (Hamilton 1822), one of the target fishes in the Mekong Delta. Trawl nets were used to monthly collect fish specimens from January to December 2020 in four sites along Bassac River...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-03-01
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| Series: | Egyptian Journal of Aquatic Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1687428521000698 |
| _version_ | 1819119997880893440 |
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| author | Quang Minh Dinh Ngon Trong Truong Nam Sy Tran Ton Huu Duc Nguyen |
| author_facet | Quang Minh Dinh Ngon Trong Truong Nam Sy Tran Ton Huu Duc Nguyen |
| author_sort | Quang Minh Dinh |
| collection | DOAJ |
| description | The present study contributes information to the testicular development and reproductive aspects of Glossogobius giuris (Hamilton 1822), one of the target fishes in the Mekong Delta. Trawl nets were used to monthly collect fish specimens from January to December 2020 in four sites along Bassac River, from Cai Rang, Can Tho (CRCT) to Long Phu, Soc Trang (LPST), Hoa Binh, Bac Lieu (HBBL) and Dam Doi, Ca Mau (DDCM). Data analysis of 632 Glossogobius giuris individuals showed that five-stage of sperm development was found in testis histological slides. At stage IV of the testis, different phases of the sperm were observed, indicating that it is a multi-spawner, releasing sperms many times during the breeding season. Further analyses of the testis about apparent frequency and gonadosomatic index showed that this goby can release sperms monthly with a peak in the main wet season. The length at first maturity was observed at 7.24, 7.18, 7.43, and 6.57 cm of TL in CRCT, LPST, HBBL, and DDCM, respectively. The findings contribute essential information to fish population management and sustainable exploitation. |
| first_indexed | 2024-12-22T06:13:40Z |
| format | Article |
| id | doaj.art-468be0d0deb147a3b729af1ffc26fddc |
| institution | Directory Open Access Journal |
| issn | 1687-4285 |
| language | English |
| last_indexed | 2024-12-22T06:13:40Z |
| publishDate | 2022-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Egyptian Journal of Aquatic Research |
| spelling | doaj.art-468be0d0deb147a3b729af1ffc26fddc2022-12-21T18:36:10ZengElsevierEgyptian Journal of Aquatic Research1687-42852022-03-014816166Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, VietnamQuang Minh Dinh0Ngon Trong Truong1Nam Sy Tran2Ton Huu Duc Nguyen3Department of Biology, School of Education, Can Tho University, Xuan Khanh Ward, Ninh Kieu District, Can Tho 900000, Viet Nam; Corresponding author.Biotechnology Research and Development Institute, Can Tho University, Xuan Khanh Ward, Ninh Kieu District, Can Tho 900000, Viet NamDepartment of Environmental Sciences, College of Environment and Natural Resources, Can Tho University, Can Tho 900000, Viet NamDepartment of Biology, School of Education, Can Tho University, Xuan Khanh Ward, Ninh Kieu District, Can Tho 900000, Viet NamThe present study contributes information to the testicular development and reproductive aspects of Glossogobius giuris (Hamilton 1822), one of the target fishes in the Mekong Delta. Trawl nets were used to monthly collect fish specimens from January to December 2020 in four sites along Bassac River, from Cai Rang, Can Tho (CRCT) to Long Phu, Soc Trang (LPST), Hoa Binh, Bac Lieu (HBBL) and Dam Doi, Ca Mau (DDCM). Data analysis of 632 Glossogobius giuris individuals showed that five-stage of sperm development was found in testis histological slides. At stage IV of the testis, different phases of the sperm were observed, indicating that it is a multi-spawner, releasing sperms many times during the breeding season. Further analyses of the testis about apparent frequency and gonadosomatic index showed that this goby can release sperms monthly with a peak in the main wet season. The length at first maturity was observed at 7.24, 7.18, 7.43, and 6.57 cm of TL in CRCT, LPST, HBBL, and DDCM, respectively. The findings contribute essential information to fish population management and sustainable exploitation.http://www.sciencedirect.com/science/article/pii/S1687428521000698Gonadosomatic indexBassac RiverHistological analysisSperm-releasing timeTestis |
| spellingShingle | Quang Minh Dinh Ngon Trong Truong Nam Sy Tran Ton Huu Duc Nguyen Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam Egyptian Journal of Aquatic Research Gonadosomatic index Bassac River Histological analysis Sperm-releasing time Testis |
| title | Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam |
| title_full | Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam |
| title_fullStr | Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam |
| title_full_unstemmed | Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam |
| title_short | Testicular development and reproductive references of Glossogobius giuris in Mekong Delta, Vietnam |
| title_sort | testicular development and reproductive references of glossogobius giuris in mekong delta vietnam |
| topic | Gonadosomatic index Bassac River Histological analysis Sperm-releasing time Testis |
| url | http://www.sciencedirect.com/science/article/pii/S1687428521000698 |
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