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; brackish; benthopelagic. Tropical; 3°N - 5°S
Africa: Lakes Manyara, Eyasi, Kitangiri and Singida in Tanzania.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 8 - ? cm
Max length : 28.0 cm SL male/unsexed; (Ref. 4967); 33.3 cm (female)
(total): 12 - 14;
soft rays: 8 - 11;
Vertebrae: 30 - 32. Diagnosis: preorbital bone narrow (Ref. 2) and scaly, with 4 pores (Ref. 2, 4967). Upper profile of head nearly horizontal, concave in specimens 130mm and over; caudal peduncle long, dorsal and anal fins do not reach its posterior end when adpressed (Ref. 2).
Inhabits lakes; grows to only about 13 cm in the more saline lakes Eyasi and Manyara, but attains a bigger size under less saline conditions (Ref. 4967, 54836). Microphagous (Ref. 54840). Mouthbrooder (Ref. 2).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Breeding cycle of about 7 weeks; there is evidence of biparental mouthbrooding (Ref. 2).
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
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (39 of 100) .