Teleostei (teleosts) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Astronotinae
Etymology: Chaetobranchopsis: Greek, chaite = hair + Greek, brangchia = gills + Greek, opsis = appearance (Ref. 45335).
More on authors: Eigenmann & Ward.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: 1 - 16. Tropical; 24°C - 29°C (Ref. 40602)
South America: Paraná River basin, in the Paraguay River in Brazil and Paraguay, and the Paraná River close to the mouth of the Paraguay River in Argentina; probably in the Amazon River basin in Bolivia and Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.0 cm SL male/unsexed; (Ref. 36377)
Occurs in swamps and flooded grounds with shallow, almost stagnant water, which may either be clear or loaded with sediments. A quiet fish which finds shelter among aquatic plant stocks or amidst tree roots. Its long dense branchiospines suggest microphagous and planktophagous feeding, possibly including small crustaceans (Ref. 35237). It possesses weak teeth, indicating that it is not a predator. Has never been spawned in the aquarium nor are there reports of any spawning in nature (Ref. 12251). May occur together with the following species: Hoplosternum littorale, Parauchenipterus galeatus, Chaetobranchus flavescens, Pterophyllum scalare, Heros efasciatus, Mesonauta guyanae, and Hypselecara temporalis.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36377)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02630 (0.01043 - 0.06634), b=3.01 (2.79 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.50 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec<1000).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).