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Alam L, Zolkaply SZ, Sumaila UR, Rusydy I, Kutty AA, Bari MA, Mokhtar M, Pradhoshini KP, Krishnakumar S, Musthafa MS. Risk of extinction, variability in fish species composition, and factors influencing fish biodiversity in the Malacca Strait. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27101-2. [PMID: 37103711 DOI: 10.1007/s11356-023-27101-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 04/14/2023] [Indexed: 06/19/2023]
Abstract
Fish biodiversity in Malaysia is under pressure due to overexploitation, pollution, and climatic stressors. Nevertheless, the information on fish biodiversity and species vulnerability status is not well documented in the region. Therefore, a study on fish species composition and abundance in the Malacca Strait of Malaysia has been conducted for the purpose of monitoring biodiversity, determining the risk of species extinction, and identifying factors influencing biodiversity distribution. The sampling was conducted based on a random stratified sampling method from the three zones of sampling locations, i.e., estuary, mangrove, and open sea area of Tanjung Karang and Port Klang of Malacca Strait. Higher species diversity was recorded at Tanjung Karang coastal and mangrove areas (H' = 2.71; H' = 1.64) than Port Klang coastal and mangrove areas (H' = 1.50, H' = 0.29), an indication that the Port Klang area is comparatively more vulnerable. The study also explored sampling location, habitat, and IUCN red list as the influencing factors for fish biodiversity. Applying IUCN red list, this study identified one Endangered and one Vulnerable species with the forecasted increasing landing for both species. Our findings suggest the urgent need for the implementation of conservation measures as well as the continuous monitoring of fish biodiversity in the area.
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Affiliation(s)
- Lubna Alam
- Institute for Environment and Development (LESTARI), Research Centre for Sustainability Science and Governance (SGK), Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
- Department of Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Mulyorejo Street, Surabaya, 60115, Indonesia
| | - Siti Zulaiha Zolkaply
- Institute for Environment and Development (LESTARI), Research Centre for Sustainability Science and Governance (SGK), Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
- Department of Agrotechnology and Bio-Industry, Jalan Raya, Lebuhraya Timur-Barat, Bandar Jeli, 17600, Jeli, Kelantan, Malaysia
| | - Ussif Rashid Sumaila
- Institute for Environment and Development (LESTARI), Research Centre for Sustainability Science and Governance (SGK), Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
- Institute for the Oceans and Fisheries, Faculty of Science, The University of British Columbia, Vancouver, Canada
| | - Ibnu Rusydy
- Department of Geological Engineering, Faculty of Engineering, Syiah Kuala University, Banda Aceh, Indonesia
| | - Ahmad Abas Kutty
- Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
| | - Md Azizul Bari
- Institute for Environment and Development (LESTARI), Research Centre for Sustainability Science and Governance (SGK), Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
| | - Mazlin Mokhtar
- Institute for Environment and Development (LESTARI), Research Centre for Sustainability Science and Governance (SGK), Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
- United Nations Sustainable Development Solutions Network Asia Headquarters (UN SDSN ASIA), Sunway University, Kuala Lumpur, Malaysia
| | - Kumara Perumal Pradhoshini
- Unit of Research in Radiation Biology & Environmental Radioactivity (URRBER), P.G. & Research Department of Zoology, The New College (Autonomous), Affiliated to University of Madras, Chennai, 600 014, Tamilnadu, India
| | - Subbiah Krishnakumar
- Department of Geology, Malankara Catholic College, Mariyagiri, Kaliyakkavilai, Kaniyakumari District, 629 153, India
| | - Mohamed Saiyad Musthafa
- Institute for Environment and Development (LESTARI), Research Centre for Sustainability Science and Governance (SGK), Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia.
- Unit of Research in Radiation Biology & Environmental Radioactivity (URRBER), P.G. & Research Department of Zoology, The New College (Autonomous), Affiliated to University of Madras, Chennai, 600 014, Tamilnadu, India.
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Littoral Water in Hong Kong as a Potential Transient Habitat for Juveniles of a Temperate Deepwater Gnomefish, Scombrops boops (Acropomatiformes: Scombropidae). Zool Stud 2021; 60:e33. [PMID: 34963786 DOI: 10.6620/zs.2021.60-33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 04/06/2021] [Indexed: 11/18/2022]
Abstract
A total of 40 juveniles belonging to a temperate deepwater gnomefish species, Scombrops boops, were sampled from littoral habitats (2-5 m depth) of eastern Hong Kong waters in April and May 2017 and March 2019. The presence of gnomefish juveniles in subtropical southern China is reported for the first time at a record low latitude of 22°11'-22°21'N. The specimens were identified based on the COI gene sequence. The genetic composition between Japan and Hong Kong gnomefish populations were compared by sequencing the mitochondrial Cytb gene, which showed no genetic differentiation. The juveniles ranged from 3.5-10.1 cm (n = 40) in total length, with 35 individuals caught from Sargassum beds and five from rocky reefs. Our findings highlighted that the littoral habitats in Hong Kong waters, in particular the seasonal Sargassum beds, are important for small juveniles of S. boops.
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Zainal Abidin DH, Mohd. Nor SA, Lavoué S, A. Rahim M, Jamaludin NA, Mohammed Akib NA. DNA-based taxonomy of a mangrove-associated community of fishes in Southeast Asia. Sci Rep 2021; 11:17800. [PMID: 34493747 PMCID: PMC8423740 DOI: 10.1038/s41598-021-97324-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 08/23/2021] [Indexed: 02/07/2023] Open
Abstract
The Merbok Estuary comprises one of the largest remaining mangrove forests in Peninsular Malaysia. Its value is significant as it provides important services to local and global communities. It also offers a unique opportunity to study the structure and functioning of mangrove ecosystems. However, its biodiversity is still partially inventoried, limiting its research value. A recent checklist based on morphological examination, reported 138 fish species residing, frequenting or subject to entering the Merbok Estuary. In this work, we reassessed the fish diversity of the Merbok Estuary by DNA barcoding 350 specimens assignable to 134 species initially identified based on morphology. Our results consistently revealed the presence of 139 Molecular Operational Taxonomic Units (MOTUs). 123 of them are congruent with morphology-based species delimitation (one species = one MOTU). In two cases, two morphological species share the same MOTU (two species = one MOTU), while we unveiled cryptic diversity (i.e. COI-based genetic variability > 2%) within seven other species (one species = two MOTUs), calling for further taxonomic investigations. This study provides a comprehensive core-list of fish taxa in Merbok Estuary, demonstrating the advantages of combining morphological and molecular evidence to describe diverse but still poorly studied tropical fish communities. It also delivers a large DNA reference collection for brackish fishes occurring in this region which will facilitate further biodiversity-oriented research studies and management activities.
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Affiliation(s)
- Danial Hariz Zainal Abidin
- grid.11875.3a0000 0001 2294 3534Centre for Global Sustainability Studies (CGSS), Level 5, Hamzah Sendut Library, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Siti Azizah Mohd. Nor
- grid.11875.3a0000 0001 2294 3534School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia ,grid.412255.50000 0000 9284 9319Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu Malaysia
| | - Sébastien Lavoué
- grid.11875.3a0000 0001 2294 3534School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | | | - Noorul Azliana Jamaludin
- grid.11875.3a0000 0001 2294 3534Centre for Global Sustainability Studies (CGSS), Level 5, Hamzah Sendut Library, Universiti Sains Malaysia, 11800 Penang, Malaysia ,Fisheries Research Institute, Kampung Acheh, 32000 Sitiawan, Perak Malaysia
| | - Noor Adelyna Mohammed Akib
- grid.11875.3a0000 0001 2294 3534Centre for Global Sustainability Studies (CGSS), Level 5, Hamzah Sendut Library, Universiti Sains Malaysia, 11800 Penang, Malaysia ,grid.11875.3a0000 0001 2294 3534School of Biological Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
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