Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Cichlasomatinae
Etymology: Hoplarchus: Greek, hoplon = weapon + Greek, archos = anus (Ref. 45335). More on author: Heckel.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 5.5 - 6.0; dH range: 5 - 10. Tropical; 27°C - 30°C (Ref. 40602)
South America: Amazon River basin, in the Negro, Preto da Eva, Urubu and Jamari rivers in Brazil; also in tributaries of the upper Orinoco River basin.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 32.0 cm TL male/unsexed; (Ref. 40637); max. published weight: 730.00 g (Ref. 40637)
Inhabits rivers (Ref. 12251). Also found in swamps and lakes; feeds on aquatic insects and crustaceans during high water, also on fishes during low water seasons (Ref. 40602). Maximum length 35 cm TL (Ref. 2060).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Axelrod, H.R., 1993. The most complete colored lexicon of cichlids. T.F.H. Publications, Neptune City, New Jersey. 864 p. (Ref. 12251)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: subsistence fisheries; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02818 (0.01394 - 0.05698), b=2.98 (2.80 - 3.16), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.57 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .