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Helicophagus waandersii Bleeker, 1858

Image contributors to this species:

FAO (1)

ScotCat Sources:

Other Sources:

Relevant Information:

Enters flooded forest. Migrates upstream when water levels begin to rise at the beginning of the flood season and moves downstream as water clears at the end of the flood season. Habitat: Occurs in medium to large-sized rivers. Diet: The stomachs of the specimens examined were more or less filled with mollusks, usually bivalves. Etymology: The specific name waaendersii: Jan Theodore van Bloemen Waanders (1820–1889) was a Captain, then Lieutenant-Colonel, of the Artillery, East Sumatra and an amateur naturalist. He was the son of Hendrik Lodewijk van Bloemen Waanders. He collected the types.

Common Name:

None

Synonyms:

None

Family:

Pangasiidae

Distribution:

Asia: Mekong and Chao Phraya Rivers, and Sumatra. Type locality: Palembang, in fluviis [Sumatra].

Size:

70.0cm. (28ins) TL.

Temp:

22-28°C (71-83°F)

p.H.

6.5-7.5.

IUCN Red List

Although there is no detailed information on the population size and trend of this species, it is still abundant throughout its known distribution and the population trend is thus suspected to be stable or declining at a rate that precludes it from a threatened category. Any localised or regional threats to this species are considered unlikely to affect it on a range-wide scale, so it is assessed as Least Concern (IUCN 2019).

Reference:

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2024. FishBase. World Wide Web electronic publication. www.fishbase.org, version (08/2024).
Ng, H.H. 2019. Helicophagus waandersii. The IUCN Red List of Threatened Species 2019.
Roberts, T.R. and C. Vidthayanon, 1991. Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species. Proc. Acad. Nat. Sci. Philad. 143:97-144.
Taki, Y., 1978. An analytical study of the fish fauna of the Mekong basin as a biological production system in nature. Research Institute of Evolutionary Biology Special Publications no. 1,77 p. Tokyo, Japan.

Family: Pangasiidae Back to Ident-A-Cat Click on Thumbnails

Helicophagus waaendersii

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