Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Orthochromis: Greek, ortho = straight + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
Environment / Climate / Range
Ecology
Freshwater; benthopelagic. Tropical; 25°C - 26°C, preferred ?
Africa: rapids at the exit of Pool Malebo (Ref. 26626), and the Lindi (Ref. 26626, 106290), Wagenia Falls (Ref. 26626, 106245), Lualaba basin and Lake Mweru (Ref. 26626), in Democratic Republic of the Congo.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.2 cm TL male/unsexed; (Ref. 42183)
Short description
Morphology | Morphometrics
Dorsal
spines
(total): 16 - 21;
Dorsal
soft rays
(total): 9;
Anal
spines: 3;
Anal
soft rays: 6 - 8;
Vertebrae: 27 - 30. Cheek squamation, 1-3 rows of scales; chest squamation, minute, deeply embedded, often with bilaterally scaleless area (Ref. 28906). Nape and nuchal scales smaller than polyacanthus, deeply embedded, appearing naked (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(1):161-180. (Ref. 26626)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthLength-frequenciesMorphometricsMorphologyLarvaeLarval dynamicsRecruitmentAbundance
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates of some properties based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00701 - 0.03755), b=3.02 (2.82 - 3.22), based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Resilience (Ref.
69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low vulnerability (12 of 100) .