Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Trematocranus: Greek, trematos = hole + Greek, kranion = skull (Ref. 45335). More on author: Trewavas.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range 4 - 20 m. Tropical; 24°C - 26°C (Ref. 13614); 9°S - 15°S
Africa: Endemic to Lake Malawi. Occurs in the northern and southern parts of the lake.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.2 cm TL male/unsexed; (Ref. 5709)
Inhabits shallow (Ref. 5709, 55954) inshore waters (Ref. 5709). Frequently seen in vegetated areas; feeds on insect larvae and crustaceans that it locates in the soft substrate (Ref. 5595).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maréchal, C., 1991. Trematocranus. p. 516-517. 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. 5709)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.45 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (24 of 100) .