The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta
Abstract The Squaretail mullet, Ellochelon vaigiensis, is a commercial fish species distributed throughout the Indo‐Pacific region. This species tolerates wide variations in salinity, having been reported from both freshwater and marine habitats. Although economically significant, there is little in...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-02-01
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| Series: | Ecology and Evolution |
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| Online Access: | https://doi.org/10.1002/ece3.11033 |
| _version_ | 1797290924136464384 |
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| author | Quang Minh Dinh Ngon Trong Truong Ton Huu Duc Nguyen Tran Thi Huyen Lam Tien Thi Kieu Nguyen Zeehan Jaafar |
| author_facet | Quang Minh Dinh Ngon Trong Truong Ton Huu Duc Nguyen Tran Thi Huyen Lam Tien Thi Kieu Nguyen Zeehan Jaafar |
| author_sort | Quang Minh Dinh |
| collection | DOAJ |
| description | Abstract The Squaretail mullet, Ellochelon vaigiensis, is a commercial fish species distributed throughout the Indo‐Pacific region. This species tolerates wide variations in salinity, having been reported from both freshwater and marine habitats. Although economically significant, there is little information on its reproduction, especially in the Vietnamese Mekong Delta (VMD), where it is heavily extracted. Our study elucidates the breeding pattern, seasonality, first length at maturity, as well as potential and relative fecundity of this species. Fish specimens were collected by trawl nets from November 2020 to October 2021 at four estuarine sites within the VMD. We found this species to be a synchronous spawner, with peaks in reproductive activity from June to September. In the populations we surveyed, there was significant dominance of males (1.26:1.00) based on 942 fish samples (526 males and 416 females). The length at 50% maturity for females was significantly higher than for males at all sites and ranged from 10.6 to 19.3 cm. The diameter of the eggs examined for this species exhibited slight variation, from 0.43 to 0.54 mm. The potential fecundity ranged from 246,254 ± 35,878 to 411,970 ± 54,370 eggs, corresponding to female length and weight of 26.7–32.6 cm and 102.97–234.19 g, respectively. Relative fecundity values were highest at Thanh Phu, Ben Tre (6388 ± 605 eggs), and Dong Hai, Bac Lieu (6461 ± 637 eggs), followed by Tran De, Soc Trang (4729 ± 408), and were found to be lowest at Duyen Hai, Tra Vinh (3117 ± 223 eggs). Information on reproductive behavior in this species has far‐reaching impacts on sustainable extractions, stock conservation, and aquaculture. |
| first_indexed | 2024-03-07T19:29:19Z |
| format | Article |
| id | doaj.art-c68dacc3d9504fa98456746ca57b28cc |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-03-07T19:29:19Z |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-c68dacc3d9504fa98456746ca57b28cc2024-02-29T08:56:39ZengWileyEcology and Evolution2045-77582024-02-01142n/an/a10.1002/ece3.11033The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong DeltaQuang Minh Dinh0Ngon Trong Truong1Ton Huu Duc Nguyen2Tran Thi Huyen Lam3Tien Thi Kieu Nguyen4Zeehan Jaafar5Department of Biology, School of Education Can Tho University Can Tho VietnamDepartment of Molecular Biotechnology Institute of Food and Biotechnology, Can Tho University Can Tho VietnamDepartment of Biology, School of Education Can Tho University Can Tho VietnamDepartment of Molecular Biotechnology Institute of Food and Biotechnology, Can Tho University Can Tho VietnamDepartment of Biology An Khanh High School, An Khanh Ward Can Tho VietnamDepartment of Biological Sciences National University of Singapore Singapore SingaporeAbstract The Squaretail mullet, Ellochelon vaigiensis, is a commercial fish species distributed throughout the Indo‐Pacific region. This species tolerates wide variations in salinity, having been reported from both freshwater and marine habitats. Although economically significant, there is little information on its reproduction, especially in the Vietnamese Mekong Delta (VMD), where it is heavily extracted. Our study elucidates the breeding pattern, seasonality, first length at maturity, as well as potential and relative fecundity of this species. Fish specimens were collected by trawl nets from November 2020 to October 2021 at four estuarine sites within the VMD. We found this species to be a synchronous spawner, with peaks in reproductive activity from June to September. In the populations we surveyed, there was significant dominance of males (1.26:1.00) based on 942 fish samples (526 males and 416 females). The length at 50% maturity for females was significantly higher than for males at all sites and ranged from 10.6 to 19.3 cm. The diameter of the eggs examined for this species exhibited slight variation, from 0.43 to 0.54 mm. The potential fecundity ranged from 246,254 ± 35,878 to 411,970 ± 54,370 eggs, corresponding to female length and weight of 26.7–32.6 cm and 102.97–234.19 g, respectively. Relative fecundity values were highest at Thanh Phu, Ben Tre (6388 ± 605 eggs), and Dong Hai, Bac Lieu (6461 ± 637 eggs), followed by Tran De, Soc Trang (4729 ± 408), and were found to be lowest at Duyen Hai, Tra Vinh (3117 ± 223 eggs). Information on reproductive behavior in this species has far‐reaching impacts on sustainable extractions, stock conservation, and aquaculture.https://doi.org/10.1002/ece3.11033breeding seasonfecunditylength at 50% maturitysquaretail mulletsynchronous spawner |
| spellingShingle | Quang Minh Dinh Ngon Trong Truong Ton Huu Duc Nguyen Tran Thi Huyen Lam Tien Thi Kieu Nguyen Zeehan Jaafar The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta Ecology and Evolution breeding season fecundity length at 50% maturity squaretail mullet synchronous spawner |
| title | The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta |
| title_full | The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta |
| title_fullStr | The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta |
| title_full_unstemmed | The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta |
| title_short | The reproductive biology of Ellochelon vaigiensis from the Vietnamese Mekong Delta |
| title_sort | reproductive biology of ellochelon vaigiensis from the vietnamese mekong delta |
| topic | breeding season fecundity length at 50% maturity squaretail mullet synchronous spawner |
| url | https://doi.org/10.1002/ece3.11033 |
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