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: Australoheros: From the Latin word 'australis' meaning southern, and the name Heros, after the nominotypic genus of the heroini tribe.
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 6.5 - 7.0; dH range: 5 - 12. Subtropical; 25°C - 30°C (Ref. 1672)
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 19.3 cm SL male/unsexed; (Ref. 56003); common length : 18.0 cm TL male/unsexed; (Ref. 36377); max. reported age: 10 years (Ref. 40602)
(total): 15 - 17;
soft rays: 7 - 9. This species differs from its congeners in having a lower jaw longer than upper and mouth pointing upwards; has the shortest dorsal scale cover and the least scaled dorsal and anal fins among (together with A. tembe); with four abdominal bars (present in more than 80% of individuals as compared to 50% or less in all other species (Ref. 74689).
South America: Coastal drainages of Uruguay and Rio Grande do Sul, Brazil; Paraná River basin, lower part of Paraná River in Argentina.
An opportunistic diurnal feeder, eating detritus and plant material, preying on small aquatic animals, including small fish. Very resistant to low temperatures. (Ref. 59043). Common in creeks, rivers, swamps and lakes (Ref. 74689). This species is an easy open spawner that lays its eggs on a stone or piece of wood (Ref. 12251). Both parents care for the eggs and fry (Ref. 12251). Consumed locally. Reported to reach 25.0 cm SL (Ref. 59043).
?í?an, O. and S.O. Kullander, 2008. The Australoheros (Teleostei: Cichlidae) species of Uruguay and Paraná River drainages. Zootaxa 1724:1-51.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: of no interest; aquarium: commercial
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03470 (0.01708 - 0.07048), b=3.08 (2.89 - 3.27), based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.48 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=10; Fec=300-1,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .