South Africa country information

Common names: Verlorenvlei redfin, Verlorenvlei rooivlerkie
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type locality of the holotype of Pseudobarbus verloreni: 'South Africa: Western Cape Province: from the Verlorenvlei River, 20 m upstream from railway at the Het Kruis bridge on R365' (Ref. 98574). Known from the Verlorenvlei River (Ref. 98574). Also collected in 1986 from Langvlei River, but it is likely to have been extirpated from that river (Ref. 98574). The species was possibly widespread throughout the Verlorenvlei and Langvlei River systems in the past, but numbers likely declined due to predation and competition from introduced fish species and habitat degradation (Ref. 98574).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
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Occurrences: Occurrences Point map
Main Ref: Chakona, A., E.R. Swartz and P.H. Skelton, 2014
National Database:

Common names from other countries

Verlorenvlei rooivlerkie, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Smiliogastrinae
Etymology: Pseudobarbus: Greek, pseudes = false + Latin, barbus = barbel (Ref. 45335); verloreni: The species is named after the Verlorenvlei River system to which it is now confined (Ref. 98574).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic. Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Verlorenvlei River, South Africa (Ref. 98574). The species was possibly widespread throughout the Verlorenvlei and Langvlei River systems in the past, but numbers likely declined due to predation and competition from introduced fish species and habitat degradation (Ref. 98574).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.1 cm SL male/unsexed; (Ref. 98574)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 10-11; Anal spines: 0; Anal soft rays: 8 - 9; Vertebrae: 34 - 37. Diagnosis: Pseudobarbus verloreni can be distinguished from its congeners by distinct linear speckles above and below the lateral line, anterior barbels minute and much smaller than eye diameter, lips unretracted, and cartilaginous plate absent (Ref. 98574). It is distinguished from all other species of Pseudobarbus, except P. skeltoni, P. burchelli and P. burgi, by the presence of two pairs of oral barbels (Ref. 98574). It is distinguished from P. skeltoni, P. burchelli and P. burgi by having a deeper body relative to standard length, smaller anterior barbels and a shorter snout relative to head length (Ref. 98574). Further, Pseudobarbus verloreni is distinguished from P. skeltoni by having a sub-terminal mouth vs. terminal in P. skeltoni and a smaller head relative to standard length; it is distinguished from P. burchelli and P. skeltoni by a deeper head, wider distance between the eyes, larger eye relative to head length, shorter posterior barbel relative to head length, wider post-orbit distance, shallower caudal peduncle and generally fewer scales along the lateral line; it is distinguished from P. burchelli and P. burgi by lack of cartilaginous plate on lower lip and having unretracted lips; and it is distinguished from P. burgi by its longer head, longer predorsal length, shorter caudal peduncle and larger eye (Ref. 98574).

Spawning possibly occurs around October-December, based on the general patterns of congeners (Ref. 98574).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Chakona, A., E.R. Swartz and P.H. Skelton, 2014. A new species of redfin (Teleostei, Cyprinidae, Pseudobarbus from the Verlorenvlei River system, South Africa. ZooKeys 453:121-137. (Ref. 98574)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(ii,iii,v)+2ab(ii,iii,v)); Date assessed: 13 December 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries:

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 2.8 ±0.3 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Pseudobarbus verloreni Chakona, Swartz & Skelton, 2014