Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia
Magallana bilineata is a commercially important oyster species in Malaysia. Despite its economic significance, the biology and ecology of this species, particularly its reproductive cycle, are poorly understood in the region. Therefore, this study aimed to investigate the reproductive cycle of M. bi...
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| Format: | Article |
| Language: | English English |
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Sciendo
2024
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| Online Access: | https://eprints.ums.edu.my/id/eprint/38926/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/38926/2/FULL%20TEXT.pdf |
| _version_ | 1811136384569704448 |
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| author | Joanna W. Doinsing Sujjat Al Azad Julian Ransangan |
| author_facet | Joanna W. Doinsing Sujjat Al Azad Julian Ransangan |
| author_sort | Joanna W. Doinsing |
| collection | UMS |
| description | Magallana bilineata is a commercially important oyster species in Malaysia. Despite its economic significance, the biology and ecology of this species, particularly its reproductive cycle, are poorly understood in the region. Therefore, this study aimed to investigate the reproductive cycle of M. bilineata in Mengkabong Bay, Tuaran, Sabah and its correlation with environmental factors. A total of 105 oyster specimens were collected and examined to determine the sex ratio, gonad developmental stages, maturity index (MI), and condition index (CI). The results revealed a sex ratio of 1:2.36 (♂:♀) in the oyster population of the bay, with a significantly higher proportion of females (P < 0.05). Hermaphroditism was detected in 1.90% of the samples. M. bilineata was found to spawn throughout most months in the bay, with the highest MI and CI values recorded in November 2019 when most oysters were in mature or maturing stages. Salinity was found to be the primary factor influencing male gonad maturation, while temperature was the primary factor influencing female gonad maturation. Understanding the reproductive biology of this species is crucial for predicting its future survival and facilitating assisted spawning and hatchery spat production, thereby ensuring the conservation and sustainability of the oyster fishery in Malaysia. |
| first_indexed | 2024-09-24T00:49:44Z |
| format | Article |
| id | ums.eprints-38926 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-09-24T00:49:44Z |
| publishDate | 2024 |
| publisher | Sciendo |
| record_format | dspace |
| spelling | ums.eprints-389262024-06-26T04:07:22Z https://eprints.ums.edu.my/id/eprint/38926/ Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia Joanna W. Doinsing Sujjat Al Azad Julian Ransangan GC1-1581 Oceanography SH1-691 Aquaculture. Fisheries. Angling Magallana bilineata is a commercially important oyster species in Malaysia. Despite its economic significance, the biology and ecology of this species, particularly its reproductive cycle, are poorly understood in the region. Therefore, this study aimed to investigate the reproductive cycle of M. bilineata in Mengkabong Bay, Tuaran, Sabah and its correlation with environmental factors. A total of 105 oyster specimens were collected and examined to determine the sex ratio, gonad developmental stages, maturity index (MI), and condition index (CI). The results revealed a sex ratio of 1:2.36 (♂:♀) in the oyster population of the bay, with a significantly higher proportion of females (P < 0.05). Hermaphroditism was detected in 1.90% of the samples. M. bilineata was found to spawn throughout most months in the bay, with the highest MI and CI values recorded in November 2019 when most oysters were in mature or maturing stages. Salinity was found to be the primary factor influencing male gonad maturation, while temperature was the primary factor influencing female gonad maturation. Understanding the reproductive biology of this species is crucial for predicting its future survival and facilitating assisted spawning and hatchery spat production, thereby ensuring the conservation and sustainability of the oyster fishery in Malaysia. Sciendo 2024 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/38926/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/38926/2/FULL%20TEXT.pdf Joanna W. Doinsing and Sujjat Al Azad and Julian Ransangan (2024) Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia. Croatian Journal of Fisheries, 82. pp. 19-32. ISSN 1848-0586 https://doi.org/10.2478/cjf-2024-0003 |
| spellingShingle | GC1-1581 Oceanography SH1-691 Aquaculture. Fisheries. Angling Joanna W. Doinsing Sujjat Al Azad Julian Ransangan Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia |
| title | Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia |
| title_full | Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia |
| title_fullStr | Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia |
| title_full_unstemmed | Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia |
| title_short | Reproductive Biology and Spawning Pattern of Oyster Magallana bilineata in Mengkabong Bay, Sabah, Malaysia |
| title_sort | reproductive biology and spawning pattern of oyster magallana bilineata in mengkabong bay sabah malaysia |
| topic | GC1-1581 Oceanography SH1-691 Aquaculture. Fisheries. Angling |
| url | https://eprints.ums.edu.my/id/eprint/38926/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/38926/2/FULL%20TEXT.pdf |
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