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Pseudobarbus afer, Eastern Cape redfin : fisheries, aquarium
Eastern Cape redfin
Common name (e.g. trout)
Genus + Species (e.g. Gadus morhua)
No image available for this species;
drawing shows typical species in Cyprinidae.
Actinopteri (ray-finned fishes) >
(Minnows or carps) > Smiliogastrinae
Greek, pseudes = false + Latin, barbus = barbel (Ref.
. More on author:
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Subtropical; 31°S - 35°S
Africa: Sundays River, Swartkops River and Baakens River systems, which discharge into Algoa Bay, in South Africa (Ref.
Length at first maturity / Size / Weight / Age
, range 4 - 4 cm
Max length : 8.9 cm SL male/unsexed; (Ref.
: 8 - 9;
: 36 - 39. Diagnosis:
by the possession of a single pair of oral barbels (Ref.
). The possession of fewer and larger scales separates
, which has 29-35 scales along the lateral line, from
, with respectively more than 60 and more than 35 scales along the lateral line (Ref.
). Lack of a mid-dorsal stripe and a relatively deeper head and body profile separates
from the more slender bodied
, head depth being 66.5-78.2% of head length vs. 61.1-71.2% and body depth being 22.5-31.6% of standard length vs. 18.8-26.8% (Ref.
). Lack of prominent black spots and patches on the body distinguishes
most closely resembles
; barbel length and the number of scale rows along the lateral line separates
from these three species; short barbels which do not reach the vertical through the posterior margin of the eye and a higher number of lateral line scales, 29-35, distinguishes
whose barbels reach or surpass the vertical through posterior edge of eye and has fewer and larger scales along lateral line, 25-30, and around caudal peduncle, 10-12; it further differs from
by lack of a blotch of pigment at the base of the caudal fin, while the lateral stripe in
terminates in a triangular blotch at the base of the caudal fin (Ref.
by possession of fewer scale rows along the lateral line, 29-35 vs. 34-37, and fewer scales around the caudal peduncle, 12-16 vs. 13-17; it has a distinct mesh-like pigmentation pattern below the lateral line which further separates this species from
which lacks discernible pigmentation pattern on the latero-ventral scales (Ref.
is separated from
by the possession of fewer and larger scales, lateral line scale series 29-35 vs. 35-45 and caudal peduncle scale rows 12-16 vs. 16-22 (Ref.
This species refers clear rocky pools; fry and juveniles occur in large schoals, adults in small groups (Ref.
). Once common and widely distributed, but
suffered severe decline in distribution and abundance, mainly due to the invasion by alien predators and competitors, deteioration of water quality and loss of critical habitat (Ref.
). Omnivorous, feeding mainly from the bottom on algae and small invertebrates (Ref.
). Breeds in summer, spawning in riffles above pools (Ref.
Life cycle and mating behavior
Chakona, A. and P.H. Skelton
, 2017. A review of the
(Peters, 1864) species complex (Teleostei, Cyprinidae) in the eastern Cape Fold Ecoregion of South Africa. ZooKeys 657:109-140. (Ref.
IUCN Red List Status (Ref.
(B1ab(ii,iii,v)+2ab(ii,iii,v)); Date assessed:
01 December 2016
Threat to humans
Fisheries: ; aquarium: commercial
FAO - Publication:
Stamps, Coins Misc.
Check for Aquarium maintenance
Check for Species Fact Sheets
Check for Aquaculture Fact Sheets
Websites from users
Catalog of Fishes
| FAO - Publication:
| Fishipedia |
| IGFA World Record |
Otolith Atlas of Taiwan Fishes
| Reef Life Survey | Socotra Atlas |
Tree of Life
| World Records Freshwater Fishing |
Estimates based on models
Phylogenetic diversity index (Ref.
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00227 - 0.01215), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
Trophic level (Ref.
): 2.7 ±0.24 se; based on food items.
Generation time: 6.4 ( na - na) years. Estimated as median ln(3)/K based on 1
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17; tm=2; tmax=6).
): Moderate vulnerability (40 of 100) .
Price category (Ref.
Palomares, Maria Lourdes D.
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- 20 July 2016
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