Biology:Hemibagrus wyckii
| Crystal-eyed 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. wyckii
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| Binomial name | |
| Hemibagrus wyckii (Bleeker, 1858)
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| Synonyms | |
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Hemibagrus wyckii is a species of catfish (order Siluriformes) of the family Bagridae. It is occasionally called the crystal-eyed catfish[1] or black devil catfish.[citation needed]
Distribution
This species originates in Asia from Thailand to Indonesia.[2] It is known from the Mekong[3] and Chao Phraya[3] drainages in central Indochina. It is also known from the Batang Hari[3] and Musi River[3] drainages in Sumatra, the Pahang River[3] and Perak River[citation needed] drainage in Peninsular Malaysia, the Citarum[3] drainage in Java, and the Baram,[3] Rejang,[3] Kapuas,[3] and Barito River[3] drainages in Borneo.
Appearance and anatomy
Hemibagrus wyckii are black with a few white markings on the caudal and dorsal fins, and the eyes are sky blue.[4] They reach about 71 centimetres (28 in) SL.[2] The head is extremely depressed and broad. The caudal fin is dark grey. The dorsal fin spine has 10–12 serrations on the posterior edge.[3]
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 wyckii appears to be restricted in the middle reaches of the large rivers it inhabits.[2] This species feeds on insects, prawns and fishes.[2] These fish are aggressive and can attack animals of their own size; they have been claimed to be the "only freshwater fish unafraid of man".[1][4]
Relationship to humans
This fish is marketed fresh as a food fish.[2] Hemibagrus are aquacultured in Asian countries.[4]
Hemibagrus wyckii and Hemibagrus wyckioides are the two members of this genus imported as aquarium fish.[4] These fish will bite and can damage objects in the aquarium.[1] Due to both its aggressive and its predatory nature, this species should be kept alone.[1]
References
- ↑ 1.0 1.1 1.2 1.3 "PlanetCatfish::Catfish of the Month::December 2002". 2006-08-10. http://www.planetcatfish.com/cotm/cotm.php?article_id=119. Retrieved 2007-05-18.
- ↑ 2.0 2.1 2.2 2.3 2.4 Froese, Rainer and Pauly, Daniel, eds. (2007). "Hemibagrus wyckii" in FishBase. May 2007 version.
- ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 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. http://rmbr.nus.edu.sg/rbz/biblio/47/47rbz555-576.pdf.
- ↑ 4.0 4.1 4.2 4.3 Linder, R. Shane (June 2000). "The Catfishes of Asia Family Bagridae part two" (PDF). Cat Chat 1 (2). Archived from the original on 2007-08-20. https://web.archive.org/web/20070820183827/http://www.catfishstudygroup.org/pdf/catfishes_of_asia2.pdf.
Wikidata ☰ Q3752895 entry
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