Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 61.0 cm TL male/unsexed; (Ref. 40637); max. published weight: 4.7 kg (Ref. 40637); max. reported age: 13 years (Ref. 13400)
Length at first maturity
Lm 24.4, range 12 - 15 cm
Environment
Freshwater; brackish; benthopelagic; depth range 0 - 10 m (Ref. 54002), usually 3 - 6 m (Ref. 54002)
Climate / Range
Tropical; 18°C - 33°C (Ref. 3), preferred ?; 12°S - 21°S
Distribution
Africa: Ngami basin, Okavango River; Cunene River and Mossamedes, Angola; upper Zambezi, Kafue River; middle Zambezi, Lake Kariba and Cabora Bassa since construction of dams. Several countries report adverse ecological impact after introduction (2265). Reported as introduced in Kasanka National Park (upper Congo River basin) in Zambia (Ref. 95585).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal
spines
(total): 15 - 18;
Dorsal
soft rays
(total): 11-15;
Anal
spines: 3;
Anal
soft rays: 9 - 13;
Vertebrae: 30 - 32. Diagnosis: male genital papilla bluntly conical with a narrow flange slightly notched in the middle; jaws enlarged in breeding males, which in this species are normally not less than 30cm TL; scales in lateral line series 31-35, usually 32-33; scales of cheek in 3 full rows; vertebrae 30-32; total number of dorsal rays 28-31. Pectoral fin in adults 34-43% SL (Ref. 2), very long (Ref. 1904). Depth of body 40.5-50.5% SL; color-pattern of non-breeding fish and female always including 3 or 4 conspicuous mid-lateral blotches and a red margin on dorsal and caudal fins; breeding male with red margins broader and brighter and general dark, iridescent purplish-brown color of head, back and flanks, masking the blotches; no series of vertical spots or vertical stripes on caudal fin; nest a simple circular depression (Ref. 2).
IUCN Red List Status (Ref. 115185)
Threat to humans
Potential pest (Ref. 6465)
Human uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes
Tools
Special reports
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Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
2.1 ±0.0 se; Based on diet studies.
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17-0.22; tm=4; tmax=13)
Vulnerability
Moderate vulnerability (40 of 100)
Price category