Namibia country information

Common names: Spikkel-skreeubaber, Spotted squeaker
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: commercial | Ref: Okeyo, D.O., 2000
Regulations: | Ref:
Uses: live export: yes;
Comments: Known from Okavango, Upper Zambezi, Kwando, and Chobe. Also in Caprivi, South West Africa/Namibia (Ref. 37065). Ornamental fish species (Ref. 52863). Also Ref. 54974.
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: Gosse, J.-P., 1986
National Database:

Common names from other countries

Spotted squeaker, 暗斑歧须鮠, Pantteriripsimonni, ... more

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: Boulenger.

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

; Água doce bentopelágico; pH range: 6.0 - 7.5; dH range: ? - 20. Tropical; 22°C - 26°C (Ref. 2059); 11°S - 21°S

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

Africa: in the Congo River basin in the Kasai system, upper Lualaba, Luapula drainage and lakes Mweru and Bangwelo in Democratic Republic of the Congo and Zambia (Ref. 75786, 82238). Also in the upper Zambezi and Okavango (Ref. 7248, 11970, 52193, 75786), Cunene, Limpopo (Ref. 3202, 11970, 75786, 82238) and Lake Chiuta (Ref. 75786). Absent from the Lake Tanganyika drainage (Ref. 78218).

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 38.5 cm TL macho/indeterminado; (Ref. 3202); peso máx. publicado: 506.00 g (Ref. 52193)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos dorsais (total) : 1; Raios dorsais (total) : 7; Espinhos anais: 0; Raios anais : 11 - 15.

Prefers rocks or marginal vegetation of flowing riverine channels to lagoons or backwaters (Ref. 7248, 52193). It feeds on a variety of food including detritus, algae and plant material, insects, snails and small fish, and scavenges readily (Ref. 7248, 52193). Eggs and larvae of cichlids have been reported in stomach of this species (Ref. 78218). Oviparous (Ref. 205). Breeds during the summer rainy season (Ref. 7248, 52193), with a peak coinciding with heavy rains in January to March (Ref. 13337). Juveniles move off the floodplains when water recedes (Ref. 13337). Grows to a large size (Ref. 246).

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: 01 May 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

Harmless

Uso pelos humanos

Pescarias: pesca de subsistência; peixe esportivo: sim; Aquário: Espécies comerciais

FAO(Publication : search) | FishSource |

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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=0.01479 (0.00841 - 0.02600), b=2.87 (2.72 - 3.02), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.4 ±0.3 se; based on diet studies.

Resiliência (Ref. 120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (K=0.8).

Fishing Vulnerability (Ref. 59153): Low vulnerability (21 of 100).

Categoria de preço (Ref. 80766): Unknown.

Synodontis nigromaculatus Boulenger, 1905