Classification / Names
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Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Cichlinae
Etymology: Australoheros: From the Latin word 'australis' meaning southern, and the name Heros, after the nominotypic genus of the Heroini tribe.
Tribe; macaensis: Named 'macaensis' in allusion to the river basin where the species was collected.
More on authors: Ottoni & Costa.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
South America: Rio Macaé basin in southeastern Brazil.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 7.4 cm SL male/unsexed; (Ref. 79631)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 16; Dorsal soft rays (total): 10 - 11; Anal spines: 7 - 8; Anal soft rays: 8 - 9; Vertebrae: 26. Distinguished from other congeners by the combination of the following characters: caudal vertebrae 12; absence of mark on side of head; head with a depression near the snout in individuals above 3.0 cm SL; wide ectopterygoid; arms of epibranchial 2 with two long tubular processes; arm of epibranchial 1 long; 25 proximal radials on dorsal-fin base; 13-14 proximal radials on anal-fin base; pre-orbital depth 55.8-58.8% HL; interorbital width 43.9-47.9% HL; arms of vertical trunk bar 7 with the same width; dorsal-fin spines 16; dorsal-fin rays 10-11; anal-fin rays 8-9; scales on lower lateral line row 8-10; snout not robust; rib pairs 11; and pre-orbital depth 55.8-58.8% HL (Ref. 79631).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ottoni, F.P. and W.J.E.M. Costa, 2008. Taxonomic revision of the genus Australoheros Rican & Kullander, 2006 (Teleostei: Cichlidae) with descriptions of nine new species from southeastern Brazil. Vertebrate Zoology 58(2):207-232. (Ref. 79631)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01380 (0.00659 - 0.02894), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.6 se; based on size and trophs of closest relatives
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).