Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Oreochromis: Latin, aurum = gold + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Africa: Lake Jipe and Pangani River (Kenya-Tanzania).
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 20 - ? cm
Max length : 50.0 cm SL male/unsexed; (Ref. 2)
(total): 17 - 19;
soft rays: 10 - 12;
Vertebrae: 32 - 33. Diagnosis: body depth 2.5-2.8 times in SL (Ref. 4967, 55060). Mouth not conspicuously large (Ref. 54836). Teeth of jaws with slender shafts in young, uniformly slender in adults (Ref. 2). Pharyngeal teeth very fine and crowded (Ref. 2, 55060). Dentigerous area of lower pharyngeal jaw with rounded lobes and short apex, its median length nearly always less than that of the blade (Ref. 2). Pectoral fin 34.3-42.2% SL (Ref. 2, 55060), rarely below 36% SL (Ref. 2), reaching origin of anal fin (Ref. 4967, 55060). Mostly with 4 anal spines, sometimes 3 (Ref. 2, 54836), rarely 5 (Ref. 2). Scales with dark centers and golden-yellow edges (Ref. 2). Caudal fin with dark vertical stripes (Ref. 2, 54836, 55060).
Inhabits lakes and rivers (Ref. 4967). Occasionally territorial (Ref. 2). Periphyton browser, additionally feeding on bottom deposits and associated phytoplankton (Ref. 30832). Maternal mouthbrooder (Ref. 54046, 55060).
Breeding pits may be similar to those of O. pangani, consisting of a central pit surrounded by two or three series of smaller pits (Ref. 2, 55060).
Trewavas, E., 1983. Tilapiine fishes of the genera Sarotherodon, Oreochromis and Danakilia. British Mus. Nat. Hist., London, UK. 583 p. (Ref. 2)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Fisheries: commercial; aquaculture: experimental
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01585 (0.00682 - 0.03686), b=3.02 (2.82 - 3.22), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.0 ±0.00 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (50 of 100) .