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, Schwarzgefleckter Fiederbartwels, Sortplettet rygsvømmermalle, ... more

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | 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 Ekologi

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

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | 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).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 38.5 cm TL hane/ej könsbestämd; (Ref. 3202); publicerad maxvikt: 506.00 g (Ref. 52193)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 1; Mjukstrålar i ryggfenan (totalt): 7; Taggstrålar i analfenan 0; Mjukstrålar i analfenan: 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).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

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

Main reference Upload your references | referenser | Koordinator | Medarbetare

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)

Least Concern (LC) ; Date assessed: 01 May 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fiskeri: husbehovsfiske; sportfisk: ja; Akvarium: Kommersiell

FAO(Publication : search) | FishSource |

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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=0.01479 (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).

Trofisk nivå (Ref. 69278): 3.4 ±0.3 se; based on diet studies.

Resiliens (Ref. 120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.8).

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

Price category (Ref. 80766): Unknown.

Synodontis nigromaculatus Boulenger, 1905