Teleostei (teleosts) >
Cypriniformes (Carps) >
Cyprinidae (Minnows or carps) > Smiliogastrinae
Etymology: Enteromius: Greek, enteron = intestine + Greek, myo, mys = muscle (Ref. 45335); anoplus: Specific name means 'unarmed', allusion not explained, perhaps referring to unserrated last dorsal fin ray.
More on author: Weber.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic. Subtropical; 5°C - 22°C; 23°S - 33°S
Africa: South Africa (restricted to the Gouritz River system, Westerrn Cape).
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 4 - ? cm
Max length : 9.5 cm SL male/unsexed; (Ref. 124213); max. reported age: 2.00 years (Ref. 7248)
This species is distinguished by the following characters: lateral line incomplete; pored scales rarely more than 24 (mode 8); barbels are well-developed, length reaching but not surpassing 1.8 mm (Ref. 124213).
Cross section: compressed.
It is tolerant of turbid and eutrophic habitats from foothill streams to mainstem sections of major rivers and manmade impoundments and it does not penetrate into upper reaches of mountain tributary streams with oligotrophic water (Ref. 124213). It probably feeds on insects, zooplankton, seeds, green algae and diatoms. Oviparous (Ref. 205). Breeds during summer when rivers are swollen after rain and lays adhesive eggs amongst vegetation. It is probable that it is preyed upon by larger fishes and birds like other species (see Ref. 7248 & 5214).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).
Kambikambi, M.J., W.T. Kadye and A. Chakona, 2021. Allopatric differentiation in the Enteromius anoplus complex in South Africa, with the revalidation of E. cernuus and E. oraniensis, and description of a new species, E. mandelai (Teleostei: Cyprinidae). J. Fish Biol. 99(3):931-954. (Ref. 124213)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: subsistence fisheries; aquarium: commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00612 - 0.01875), b=3.01 (2.86 - 3.16), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.7 ±0.27 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (tm=1; tmax=2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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