Berg River redfin

Last updated

Berg River redfin
Berg River redfin imported from iNaturalist photo 55117197 on 9 August 2023.jpg
Berg River redfin photographed in Haweqwa Nature Reserve, South Africa
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Cyprinidae
Subfamily: Barbinae
Genus: Pseudobarbus
Species:
P. burgi
Binomial name
Pseudobarbus burgi
(Boulenger, 1911)
Synonyms
  • Barbus burgiBoulenger, 1911

The Berg River redfin (Pseudobarbus burgi) or Berg redfin is an African freshwater fish species in the family Cyprinidae. [2] The Burchell's redfin (P. burchelli), the type species of its genus Pseudobarbus , is a very close relative. The Berg River redfin is tetraploid. [3]

It is endemic to the Western Cape Province of South Africa, where it occurs in the upper Berg River and its tributaries Boesmans, Goedverwacht, Hugo, Krom, Leeu and Wemmers Rivers. Similar fishes in the Verlorenvlei have turned out to belong to a distinct species, which is undescribed as of 2007. Formerly a population of either species was also found in the Eerste River. [4]

It inhabits clear oligotrophic waters with low hardness. This species is considered Endangered by the IUCN as it has declined much in recent decades; at least in the Boesmans River its numbers are still dropping. Apart from overuse of the rivers' water, the main threats are the introduced rainbow trout (Oncorhynchus mykiss) and smallmouth bass (Micropterus dolomieu). In particular the latter simply eats up the entire stock of Berg River Redfins whenever it manages to settle a stretch of river. The higher reaches of the rivers are too cold for the bass to thrive; here, the trout are the bigger problem. The impact of the African catfish (Clarias gariepinus), another non-native species, has not yet been assessed, as it has not been present for long. No conservation plan has been proposed for P. burgi yet. [4]

Related Research Articles

<span class="mw-page-title-main">Olifants River (Western Cape)</span> River in the Western Cape, South Africa

The Olifants River is a river in the northwestern area of the Western Cape Province of South Africa. The upper and main catchment area of the Olifants river is around Ceres and the Cederberg mountains. The Clanwilliam and Bulshoek dams are located on the river and provide water for the towns and farms along the watercourse. The river is approximately 285 km long with a catchment area of 46,220 km2 and flows into the Atlantic Ocean at Papendorp, 250 km north of Cape Town.

<span class="mw-page-title-main">Berg River</span> River in the Western Cape, South Africa

The Berg River is a river located just north of Cape Town in the Western Cape Province of South Africa. It is approximately 294 km (183 mi) long with a catchment area of 7,715 km² (2979 mi²) and debouches into the Atlantic Ocean. About 65% of the Berg River area is under agriculture. The major towns in the Berg River area are Velddrif and Laaiplek near the coast, Piketberg, Hopefield, Moorreesburg and Darling further inland.

<span class="mw-page-title-main">Cape galaxias</span> Species of fish

The Cape galaxias is a species of freshwater fish of the family Galaxiidae.

<i>Pseudobarbus</i> Genus of fishes

Pseudobarbus is a ray-finned fish genus in the family Cyprinidae. The type species is Burchell's redfin. The scientific name is derived from the Ancient Greek pseudes ("false") and the Latin word barbus. This genus contains some of the South African redfins. It was originally proposed as a subgenus, but has since been found worthy of recognition as a full genus.

<span class="mw-page-title-main">Cape whitefish</span> Species of fish

The Cape whitefish or Berg-breede River whitefish is a ray-finned fish species in the family Cyprinidae. It is placed with the South African redfins in Pseudobarbus. It is tetraploid. Its closest living relative was at one time considered the sawfin.

The Clanwilliam redfin, is a ray-finned fish species in the family Cyprinidae. It is placed with the South African redfins in Pseudobarbus. It is tetraploid. Its closest living relative is probably the Twee River redfin.

<span class="mw-page-title-main">Clanwilliam yellowfish</span> Species of threatened fish endemic to the Western Cape, South Africa

The Clanwilliam yellowfish is a ray-finned fish species in the family Cyprinidae. It has long been placed in Barbus, the "wastebin genus" for barbs, by default; however, the species is increasingly being restored to related yellowfish genus Labeobarbus which seems a much more appropriate placement. It is hexaploid like the other yellowfish, among which it is more closely related to the smallscale yellowfish than to the largescale yellowfish.

The Twee River redfin or simply Twee redfin is a ray-finned fish species in the family Cyprinidae. It is placed with the South African redfins in Pseudobarbus. It is tetraploid. Its closest living relative is probably the Clanwilliam redfin.

The Namaquab barb is a species of cyprinid fish.

<span class="mw-page-title-main">Largemouth yellowfish</span> Species of fish

The largemouth yellowfish or Vaal-Orange largemouth yellowfish is a ray-finned fish species in the family Cyprinidae. This large freshwater barb is found in southern Africa.

The sawfin, also known as Clanwilliam sawfin, is a ray-finned fish species in the family Cyprinidae. It is placed with the South African redfins in Pseudobarbus. It is tetraploid. Its closest living relative is probably the Cape whitefish.

<span class="mw-page-title-main">Eastern Cape redfin</span> Species of fish

The Eastern Cape redfin is an African freshwater fish species in the family Cyprinidae, this appears to be a species complex rather than a single species.

<span class="mw-page-title-main">Smallscale redfin</span> Species of fish

The smallscale redfin is a freshwater fish in the family Cyprinidae which is endemic to South Africa. It is threatened by habitat destruction and the impact of invasive species.

<span class="mw-page-title-main">Burchell's redfin</span> Species of fish

Burchell's redfin, also known as the Tradouw redfin, Tradou redfin or Breede redfin, is an African freshwater fish species in the family Cyprinidae. P. burchelli is the type species of its genus Pseudobarbus, and like all of these is tetraploid. The Berg River redfin is a very close relative.

The fiery redfin is an African freshwater fish species in the family Cyprinidae.

<span class="mw-page-title-main">Slender redfin</span> Species of fish

The slender redfin is an African freshwater fish species in the family Cyprinidae.

The clanwilliam rock-catfish is a species of catfish in the family Austroglanididae. It is endemic to South Africa.

<span class="mw-page-title-main">Border barb</span> Species of fish

The border barb is a ray-finned fish species in the family Cyprinidae. It is placed with the South African redfins in Pseudobarbus. Like Pseudobarbus. It is tetraploid.

<span class="mw-page-title-main">Verlorenvlei redfin</span> Species of fish

The Verlorenvlei redfin is a species of barb endemic to the Verlorenvlei River in South Africa.

References

  1. ↑ Jordaan, M.; Van der Walt, R.; Swartz, E.R.; Impson, D. (2017). "Pseudobarbus burgi". IUCN Red List of Threatened Species . 2017: e.T107660562A100170651. doi: 10.2305/IUCN.UK.2017-3.RLTS.T107660562A100170651.en . Retrieved 11 November 2021.
  2. ↑ Froese, Rainer; Pauly, Daniel (eds.) (2014). "Pseudobarbus burgi" in FishBase . April 2014 version.
  3. ↑ de Graaf et al. (2007), Impson & Swartz (2007)
  4. 1 2 Impson & Swartz (2007)


Puntius lateristriga Bleeker.jpg

This Cyprininae article is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.