Freshwater fishes (Actinopterygii) of Kenyir Reservoir, Peninsular Malaysia: Updated checklist, taxonomic concerns and alien species Author Aqmal-Naser, Mohamad Terrestrial Ecology, Biodiversity and Aquatic Research (TEBAR), Institute of Tropical Biodiversity and Sustainable Management, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia Author Ali, Norsyafira Anis Biodiversity and Ecology Research (BERes), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia Author Azmi, Nur Ummiliani Biodiversity and Ecology Research (BERes), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia Author Fahmi-Ahmad, Muhammad https://orcid.org/0000-0002-7815-7054 Biodiversity and Ecology Research (BERes), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia Author Rizal, Syed Ahmad Biodiversity and Ecology Research (BERes), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia Author Ahmad, Amirrudin B. https://orcid.org/0000-0002-7775-1289 Biodiversity and Ecology Research (BERes), Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia & Terrestrial Ecology, Biodiversity and Aquatic Research (TEBAR), Institute of Tropical Biodiversity and Sustainable Management, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia amirrudin@umt.edu.my text Biodiversity Data Journal 2023 2023-07-03 11 100337 100337 http://dx.doi.org/10.3897/BDJ.11.e100337 journal article http://dx.doi.org/10.3897/BDJ.11.e100337 1314-2828-11-e100337 FC579DAD3A2557F890AD82360E5311D3 Clarias aff. batrachus (Linnaeus, 1758) Materials Type status: Other material . Occurrence : catalogNumber: UMTZC7792 ; Location : locality: Mandak River ; Event : samplingProtocol: Electrofishing , Literature ; Department of Fisheries (1995) ; year: 2019 Native status Native species. Conservation status NE Notes The distribution of Clarias batrachus is restricted to Java, Indonesia ( Ng and Kottelat 2008 ). The species is widely introduced for cultivation, but originated from an Indochinese subpopulation that may represent undescribed species ( Ng and Low 2019 ). The previously-identified population of C. batrachus in north-eastern India is presently known as Clarias magur . Other populations were known as Clarias aff. batrachus 'Indochina' (from Mekong River drainage) and Clarias aff. batrachus 'Sundaland' (from the Malay Peninsula and Borneo) (Fig. 19 ).