Namibia country information

Common names: Smallmouth yellowfish
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Lower Orange.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/wa.html
National Fisheries Authority: http://www.benefit.org.na/
Occurrences: Occurrences Point map
Main Ref: Hay, C.J., B.J. van Zyl, F.H. van der Bank, J.T. Ferreira and G.J. Steyn, 1999
National Database:

Common names from other countries

Vaal-Orange smallmouth yellowfish, Kleinbek-geelvis, Parma lesklá, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Torinae
Etymology:

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

; sötvatten bentopelagisk; flodvandrande (Ref. 51243). Subtropical; 24°S - 33°S

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Africa: originally endemic to the Orange-Vaal River system, South Africa. Has been introduced into the Gouritz River, South Cape and the Olifants River, Limpopo River system where it is now established.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 50.0 cm FL hane/ej könsbestämd; (Ref. 7248); publicerad maxvikt: 7.8 kg (Ref. 7248); rapporterad maxålder: 12 år (Ref. 6465)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 4; Mjukstrålar i ryggfenan (totalt) : 7 - 9; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 5.

Occurs in impoundments and rivers. Prefers clear-flowing waters over sandy or rocky substrates. An omnivorous bottom feeder. Diet includes water fleas, snails, plankton, small mussels, insects, small fish, algae and detritus. Breeds in spring through to midsummer after the first substantial rains of the season. Migrates upstream to spawn over suitable gravel beds (Ref. 7248).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Breeds in flowing water therefore must ascend the rivers to spawn in gravel beds. Eggs are laid in a shallow saucer-like nest which is constructed in the gravel by a female (or perhaps male) using the snout and caudal fin. Eggs are covered with gravel after fertilization. A 45 cm female carries 30, 000 eggs.

Main reference Upload your references | referenser | Koordinator | Medarbetare

Lévêque, C. and J. Daget, 1984. Cyprinidae. p. 217-342. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 2801)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 01 September 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: kommersiell; sportfisk: ja

FAO(Publication : search) | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Diet compositions
Food consumptions
Food rations
Predatorer

Ecology
Ekologi
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Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
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Abundances

Life cycle
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Fecundities
Spawnings
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Egg(s)
Egg developments
Larver
Larvdynamik

Distribution
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Anatomy
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Physiology
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Swimming type
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Visual pigment(s)
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Genetics
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Human related
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Vattenbruksprofiler
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Stamps, coins, misc.

Outreach
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Taxonomy
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References
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Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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Summary page | Point data | Populärnamn | Photos

Internet-källor

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=0.00933 (0.00422 - 0.02065), b=3.01 (2.82 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.1 ±0.42 se; based on food items.

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.13-0.27; tmax=12).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100).

Price category (Ref. 80766): Unknown.

Labeobarbus aeneus (Burchell, 1822)