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Teleostei (teleosts) > Siluriformes (Catfishes) > Mochokidae (Squeakers or upside-down catfishes) > Chiloglanidinae
Etymology: Chiloglanis: Greek, cheilos = lip + Greek, glanis = a fish that can eat the bait without touching the hook; a cat fish (Ref. 45335).
Eponymy: Cornelis Jacobus Swierstra (1874–1952) was a Dutch-South African entomologist who was born in Groningen and died in Pretoria. [...] (Ref. 128868), visit book page.

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

Freshwater; benthopelagic. Tropical; 20°S - 27°S

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

Africa: lowveld and warmer reaches of the Limpopo, Pongola and Incomati River systems in Mozambique, South Africa and Zimbabwe (Ref. 6376, 7248, 52193).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 7.0 cm SL male/unsexed; (Ref. 52193)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 5 - 6; Anal spines: 0; Anal soft rays: 10 - 14.

Prefers sandy stretches of flowing rivers where it lives over sandbanks, burying itself in the sand (Ref. 52193). It feeds on small invertebrates (Ref. 7248, 52193). Breeds in summer (Ref. 7248, 52193). Oviparous (Ref. 205).

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

Assumed to be the same as C. pretoriae. Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Gosse, J.-P., 1986. Mochokidae. p. 105-152. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels, MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3202)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 03 July 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest; aquarium: potential

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Length-weight rel.
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Anatomy
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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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.37 se; based on food items.

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).

Chiloglanis swierstrai Van Der Horst, 1931