Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Latidae
Etymology: Lates: Latin, lateo, latere = to be hidden.
Environment / Climate / Range
Freshwater; demersal; potamodromous (Ref. 51243); depth range 10 - 60 m (Ref. 34290). Tropical; 27°N - 7°S
Length at first maturity / Size / Weight / Age
Maturity: Lm 74.3, range 53 - 85 cm
Max length : 200 cm TL male/unsexed; (Ref. 58490); common length : 100.0 cm SL male/unsexed; (Ref. 34290); max. published weight: 200.0 kg (Ref. 3900)
(total): 7 - 8;
(total): 10-14. Caudal fin rounded (Ref. 4967). Pre-orbital and pre-opercular bones armed with spines; a large spine on the free edge of the operculum. Dark greyish-blue dorsally, greyish-silver on flank and ventrally (Ref. 34290).
Africa: Widespread throughout the Ethiopian Region of Africa, occurring commonly in all major river basins including the Nile, Chad, Senegal, Volta and Congo. Present in the brackish waters of Lake Mariout, near Alexandria. Exists in Lakes Albert, Rudolph and Tana. Several countries report adverse ecological impact after introduction.
Inhabits channels, lakes and irrigation canals. Adults inhabit deep water, while juveniles are found in shallow water. Feeds on fish especially clupeids and Alestes (Ref. 13851); smaller fish also feed on larger crustaceans and insects. Juveniles are planktivorous (Ref. 28714). Threatened due to over harvesting (Ref. 58490). No length type given but assumed to be in TL.
Teugels, G.G., C. Lévêque, D. Paugy and K. Traoré, 1988. État des connaissances sur la faune ichtyologique des bassins côtiers de Côte d'Ivoire et de l'ouest du Ghana. Rev. Hydrobiol. Trop. 21(3):221-237. (Ref. 272)
IUCN Red List Status (Ref. 90363)
CITES (Ref. 94142)
Threat to humans
Fisheries: highly commercial; aquaculture: commercial; gamefish: yes
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5006 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00833 - 0.01316), b=3.04 (2.97 - 3.11), based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 4.5 ±0.8 se; Based on diet studies.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17-0.19; tm=2-3).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .