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Synodontis zambezensis Peters, 1852

Plain squeaker
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Image of Synodontis zambezensis (Plain squeaker)
Synodontis zambezensis
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South Africa country information

Common names: Brown squeaker, Bruin skreeubaber, Bruin-skreeubaber
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Found in the Pongola River (=Pongolo) (Ref. 13332).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Gosse, J.-P., 1986
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Mochokidae (Squeakers or upside-down catfishes) > Mochokinae
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
  More on author: Peters.

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

; Água doce bentopelágico.   Tropical; 13°S - 27°S

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Africa: middle and lower Zambezi south to the Pongolo system (Ref. 7248, 52193). Absent from upper Save-Runde system (Ref. 7248, 52193). Also reported from the Luangwe (upper Congo River basin) (Ref. 58032, 82238). Reports from the Angolan Congo basin (Ref. 11970) refer to Synodontis macropuncatus (Ref. 75786).

Comprimento de primeira maturação / Tamanho / Peso / Idade

Maturity: Lm 15.0  range ? - ? cm
Max length : 43.0 cm SL macho/indeterminado; (Ref. 52193); peso máx. publicado: 820.00 g (Ref. 52193)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 1; Raios dorsais (total) : 7; Espinhos anais: 0; Raios anais : 11 - 16.

Biologia     Glossário (p.ex. epibenthic)

The spines are said to be poisonous (Ref. 4537). Found in pools and slow flowing reaches of perennial and seasonal rivers; prefers riverine habitats to floodplains; shelters in holes or crevices or on the underside of logs, frequently in an upside-down position (Ref. 52193). Active at night, feeds on detritus and plant matter such as seeds as well as small invertebrates like insects and snails, and will scavenge readily (Ref. 52193). Breeds in summer during rainy periods (Ref. 7248, 52193). Oviparous (Ref. 205).

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Oviparous (Ref. 205). Distinct pairing during breeding (Ref. 205).

Referência principal Upload your references | Referências | Coordenador | Colaboradores

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)

Status na Lista Vermelha da UICN (Ref. 130435)

  Segura ou pouco preocupante (LC) ; Date assessed: 02 October 2017

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Venomous (Ref. 4537)




Uso pelos humanos

Pescarias: pouco comercial; peixe esportivo: sim
FAO(Publication : search) | FishSource |

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Trophic ecology
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Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00491 - 0.02235), b=2.99 (2.80 - 3.18), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  2.7   ±0.34 se; based on food items.
Resiliência (Ref. 120179):  médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100).
Categoria de preço (Ref. 80766):   Unknown.