Hemibagrus wyckioides
| Asian redtail catfish | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Siluriformes |
| Family: | Bagridae |
| Genus: | Hemibagrus |
| Species: | H. wyckioides
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| Binomial name | |
| Hemibagrus wyckioides (P. W. Fang & Chaux, 1949)
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| Synonyms | |
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Hemibagrus wyckioides, the Asian redtail catfish, is a species of catfish (order Siluriformes) of the family Bagridae.
Distribution
These catfish originate from the Mekong basin, and are reported from Chao Phraya, Mae Klong, and peninsular Thailand river systems.[1] There is also an introduced population in Malaysia.[2]
Appearance and anatomy
Hemibagrus wyckioides reaches a length of 130 centimetres (51 inches) TL.[1] This species is the largest Bagrid catfish in Asia, and may reach 80 kilograms.[3] The caudal fin is white when the fish is small, but it becomes bright red when it reaches about 15 cm (6 in).[1]
Hemibagrus wyckii bears a resemblance to H. wyckioides, however, H. wyckioides lacks serrations on the dorsal fin spine, has a shorter dorsal fin base, and shorter maxillary barbels.[3]
Ecology
Hemibagrus wyckioides occurs in large upland rivers, and is common in areas with rocky bottoms and irregular depths.[1][3] These fish do not migrate, but they reproduce locally and enter the flooded forest during high water in July–October.[3] H. wyckiodies feed on insects, prawns, fish, and crabs.[3]
Relationship to humans
This fish is marketed fresh as a food fish.[1] Hemibagrus are aquacultured in Asian countries.[4]
Hemibagrus wyckioides and Hemibagrus wyckii are the two members of this genus imported as aquarium fish.[4] This species will rearrange decorations in the aquarium.[5] These fish are not picky, and will eat a variety of fish foods.[5] This species is sometimes claimed to be the most aggressive freshwater fish in the world, and should be left alone.[6]
As an Invasive Species
H. wyckioides is an invasive species in Malaysia. They were introduced as a food fish and some individuals escaped from fish farms or were released illegally into rivers. It is now illegal to keep H. wyckioides in net cages in Malaysia.[2]
References
- ^ a b c d e Froese, Rainer; Pauly, Daniel (eds.). "Hemibagrus wyckioides". FishBase. May 2007 version.
- ^ a b "大马渔业局未曾发准证 养殖红尾鲶鱼者皆属违法 - 北马 - 地方". 東方網 馬來西亞東方日報 [Oriental Daily News] (in Chinese). 2021-04-03. Retrieved 2022-04-03.
- ^ a b c d e Ng, Heok Hee; Rainboth, Walter, J. (1999). "The Bagrid Catfish Genus Hemibagrus (Teleostei: Siluriformes) in Central Indochina with a New Species from the Mekong River" (PDF). The Raffles Bulletin of Zoology. 47 (2): 555–576. Archived from the original (PDF) on 2015-01-18. Retrieved 2007-06-17.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ a b Linder, R. Shane (June 2000). "The Catfishes of Asia Family Bagridae part two" (PDF). Cat Chat. 1 (2). Archived from the original (PDF) on 2007-08-20.
- ^ a b Ralph, Chris (2004-10-04). "Hemibagrus wyckioides". ScotCat.com. Retrieved 2007-05-18.
- ^ Hemibagrus wyckioides. PlanetCatfish.com. Accessed 18 May 2007.
External links
- Vidthayanon, C. 2012. Hemibagrus wyckioides. The IUCN Red List of Threatened Species 2012. Downloaded on 22 November 2017.