Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Mochokidae
(Squeakers or upside-down catfishes)
Etymology: Synodontis: Greek, syn, symphysis = grown together + Greek, odous = teeth (Ref. 45335).
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: ? - 30; potamodromous (Ref. 51243). Tropical; 22°C - 28°C (Ref. 2060)
Length at first maturity / Size / Weight / Age
Maturity: Lm 21.0, range 12 - 17 cm
Max length : 49.0 cm TL male/unsexed; (Ref. 7362); max. published weight: 500 g (Ref. 3799); max. reported age: 12 years (Ref. 72479)
Africa: Nile basin, Abaia, Stephanie, Rudolf Lake, Tana?, Uebi Guiba (Uebi Shebeli), Chad, Niger, Senegal, Volta?. Also known from Guinea, Sierra Leone and Liberia (Ref. 7362).
Maximum SL was recorded at 37.0 cm (Ref. 7362). Omnivore, feeds on insect nymph, larvae, eggs and detritus (Ref. 13868). Also feeds on fish, bivalves in the Sudd and snails in Gezira irrigation canals. Oviparous (Ref. 205). Breeding occurs during the flood season (Ref. 28714). Utilized for human consumption.
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.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: commercial; gamefish: yes
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01518 (-0.04140 - 0.07176), b=2.95 (2.92 - 2.98), based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 2.9 ±0.4 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.10-0.54; tmax=3; Fec=64,273).
Vulnerability (Ref. 59153
): High vulnerability (65 of 100) .