Vienna Anastasia Admodisastro and Joanna Wong Doinsing and Laditah Duisan and Sujjat Al Azad and John Madin and Julian Ransangan (2021) Population dynamics of Asiatic Hard Clam, Meretrix meretrix (Linnaeus, 1758) in Marudu Bay, Malaysia: Implication for fishery resource management. Journal of Fisheries and Environment, 45. pp. 92-105. ISSN 2630-0702 (P-ISSN) , 2630-0826 (E-ISSN)
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Population dynamics of Asiatic Hard Clam, Meretrix meretrix (Linnaeus, 1758) in Marudu Bay, Malaysia_ABSTRACT.pdf Download (90kB) |
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Population dynamics of Asiatic Hard Clam, Meretrix meretrix (Linnaeus, 1758) in Marudu Bay, Malaysia.pdf Restricted to Registered users only Download (782kB) | Request a copy |
Abstract
Hard clam, Meretrix meretrix is the principal bivalve resource collected by artisanal fishermen in the coastal areas of Marudu Bay, Malaysia. Population parameters of the clam in the intertidal zone of Marudu Bay, Sabah were analyzed using FiSAT software, based on monthly length and weight data collected from May 2017 to April 2018. A total of 1,745 clams with shell lengths ranging from 18.3 to 101.7 mm were analyzed. Asymptotic length (L∞) and growth coefficient (K) of the von Bertalanffy growth formula (VBGF) for M. meretrix were estimated at 107.63 mm and 0.47 year-1, respectively. The estimated growth performance index (ϕ) was 3.736. The theoretical age at length zero (t0) was -0.1412. The predicted maximum life span of the clam was 6.38 years. The sampled population of M. meretrix exhibited consistent and moderate fatness (3.88±0.84) throughout the year. The total mortality (Z) was estimated at 2.65 year-1, fishing mortality (F) at 1.87 year-1, and natural mortality (M) at 0.78 year-1. The exploitation level (E) of the M. meretrix population was 0.70, while the maximum allowable limit of exploitation (Emax) was 0.499 for the highest yield. This study clearly indicates that the M. meretrix stock in Marudu Bay experiences over-exploitation that warrants immediate action by the fisheries management authority.
| Item Type: | Article |
|---|---|
| Keyword: | Condition index , Exploitation , Growth , Hard clam , Marine park , Mortality , Tun Mustapha |
| Subjects: | Q Science > QL Zoology > QL1-991 Zoology > QL360-599.82 Invertebrates |
| Department: | INSTITUTE > Borneo Marine Research Institute |
| Depositing User: | SAFRUDIN BIN DARUN - |
| Date Deposited: | 06 Apr 2022 12:18 |
| Last Modified: | 06 Apr 2022 12:18 |
| URI: | https://eprints.ums.edu.my/id/eprint/32235 |
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