Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Orthochromis: Greek, ortho = straight + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on authors: Greenwood & Kullander.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Africa: endemic to Kalungwishi River, tributary of Lake Mweru, upper Congo River basin in Zambia (Ref. 26626).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.9 cm SL male/unsexed; (Ref. 26626)
Rheophilic (Ref. 52307). Collected from clear, fast-flowing waters. The type series was taken from down to 2 m depth close to the shore, over rocky bottoms. Water temperature was 20.7 °C, pH 6.8, conductivity 25.7 µS, dissolved oxygen 9.3 mg/l (Ref. 26626).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Greenwood, H.P. and S.O. Kullander, 1994. A taxonomic review and redescription of Tilapia polyacanthus and T. stormsi (Teleostei: Cichlidae), with descriptions of two new Schwetzochromis species from the Upper Zaire River drainage. Ichthyol. Explor. Freshwat. 5(2):161-180. (Ref. 26626)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [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 BS (Ref. 93245
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .