Actinopteri (ray-finned fishes) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Nanochromis: Latin, nannus = small + Greek, chromis = a fish, perhaps a perch (Ref. 45335); transvestitus: Specific name derived from the female's more intense coloration; the male is less conspicuous, a feature that is the reverse of many other cichlld species; reversed sexual dichromatism is however common and well-distributed among the chromidotilapines; females are more colorful than males in many of the genera related to Nanochromis (e.g. many Pelvicachromis species)(Ref. 52307). More on authors: Stewart & Roberts.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; pH range: 5.0 - 6.0; dH range: 5 - 12; depth range 1 - 1 m (Ref. 33454). Tropical; 24°C - 26°C (Ref. 2060); 1°S - 4°S
Africa: Lake Mai Ndombe (= Lake Leopold II) (middle Congo River basin) in Democratic Republic of the Congo (Ref. 33454, 52307).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.4 cm SL male/unsexed; (Ref. 5666)
Cave-spawner (Ref. 52307). Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Daget, J., 1991. Nanochromis. p. 270-273. In J. Daget, J.-P. Gosse, G.G. Teugels 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. 4. (Ref. 5666)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .