Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management
The Asiatic hard clam, Meretrix meretrix, is a crucial bivalve species that supports artisanal fisheries in Marudu Bay, Sabah, Malaysia. However, the clam population has declined due to overexploitation. The objective of this study was to investigate the gonad development of the clam in response to...
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| Format: | Article |
| Language: | English English |
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Zoology Department
2023
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| Online Access: | https://eprints.ums.edu.my/id/eprint/38741/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/38741/2/FULL%20TEXT.pdf |
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| author | Vienna A. Admodisastro Muhammad Baharuddin John Madin Sitti Raehanah Muhamad Shaleh Aileen Tan Shau Hwai Julian Ransangan |
| author_facet | Vienna A. Admodisastro Muhammad Baharuddin John Madin Sitti Raehanah Muhamad Shaleh Aileen Tan Shau Hwai Julian Ransangan |
| author_sort | Vienna A. Admodisastro |
| collection | UMS |
| description | The Asiatic hard clam, Meretrix meretrix, is a crucial bivalve species that supports artisanal fisheries in Marudu Bay, Sabah, Malaysia. However, the clam population has declined due to overexploitation. The objective of this study was to investigate the gonad development of the clam in response to environmental variations. Five hundred specimens were collected and analyzed for gonad and condition indexes over ten months. The population of clams was dioecious with a ♀ dominance (♂:♀ ratio of 1:1.058), and hermaphrodites were infrequent (0.4%). The clam exhibited year-round spawning with increased peaks in July-August and November-December. Monthly variation was observed in the condition index (P<0.05) but not in the gonad index (P>0.05). The condition index was correlated with environmental variables, while the gonad index was only linked with total rainfall. This study provides essential insights into the reproductive biology of Meretrix meretrix, which can aid in its sustainable management and conservation. |
| first_indexed | 2024-09-24T00:49:12Z |
| format | Article |
| id | ums.eprints-38741 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-09-24T00:49:12Z |
| publishDate | 2023 |
| publisher | Zoology Department |
| record_format | dspace |
| spelling | ums.eprints-387412024-05-24T01:38:34Z https://eprints.ums.edu.my/id/eprint/38741/ Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management Vienna A. Admodisastro Muhammad Baharuddin John Madin Sitti Raehanah Muhamad Shaleh Aileen Tan Shau Hwai Julian Ransangan GB3-5030 Physical geography QH540-549.5 Ecology The Asiatic hard clam, Meretrix meretrix, is a crucial bivalve species that supports artisanal fisheries in Marudu Bay, Sabah, Malaysia. However, the clam population has declined due to overexploitation. The objective of this study was to investigate the gonad development of the clam in response to environmental variations. Five hundred specimens were collected and analyzed for gonad and condition indexes over ten months. The population of clams was dioecious with a ♀ dominance (♂:♀ ratio of 1:1.058), and hermaphrodites were infrequent (0.4%). The clam exhibited year-round spawning with increased peaks in July-August and November-December. Monthly variation was observed in the condition index (P<0.05) but not in the gonad index (P>0.05). The condition index was correlated with environmental variables, while the gonad index was only linked with total rainfall. This study provides essential insights into the reproductive biology of Meretrix meretrix, which can aid in its sustainable management and conservation. Zoology Department 2023 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/38741/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/38741/2/FULL%20TEXT.pdf Vienna A. Admodisastro and Muhammad Baharuddin and John Madin and Sitti Raehanah Muhamad Shaleh and Aileen Tan Shau Hwai and Julian Ransangan (2023) Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management. Egyptian Journal of Aquatic Biology & Fisheries, 27. pp. 1-21. ISSN 1110 – 6131 |
| spellingShingle | GB3-5030 Physical geography QH540-549.5 Ecology Vienna A. Admodisastro Muhammad Baharuddin John Madin Sitti Raehanah Muhamad Shaleh Aileen Tan Shau Hwai Julian Ransangan Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management |
| title | Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management |
| title_full | Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management |
| title_fullStr | Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management |
| title_full_unstemmed | Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management |
| title_short | Reproductive biology and condition index of meretrix meretrix in Marudu Bay, Malaysia: Implications for conservation and management |
| title_sort | reproductive biology and condition index of meretrix meretrix in marudu bay malaysia implications for conservation and management |
| topic | GB3-5030 Physical geography QH540-549.5 Ecology |
| url | https://eprints.ums.edu.my/id/eprint/38741/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/38741/2/FULL%20TEXT.pdf |
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