Australoheros Tavaresi

📖 Overview

Australoheros Tavaresi (Australoheros tavaresi), first described by Ottoni, 2012 is a small fish in the family Cichlidae (order Cichliformes). Adults typically reach 7.90 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Cichlidae kept in the hobby.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 16 - 17; Dorsal soft rays (total): 10 - 11; Anal spines: 7 - 8; Anal soft rays: 8 - 9; Vertebrae: 26. Distinguished from all other species of Australoheros (except A. facetus) by having prognathous mouth (vs. isognathous); from species of the A. facetus, A. forquilha, A. kaaygua and A. scitulus species groups, and from A. acaroides, A. ykeregua, A. angiru and A. taura by having 12 caudal vertebrae (vs. 13 - 15) and 14 precaudal vertebrae (vs. 12 - 13); from species of the A. facetus, A. forquilha and A. kaaygua species groups by having three abdominal bars in all stages of life (vs. always four abdominal bars in juveniles, and adults with three bars in about 50% and four in about 50% of all specimens examined); from A. perdi by having 26 total vertebrae (vs. 25); from A. ykeregua by the absence of dark marks on the suborbital region (vs. presence); from A. agiru by having a conspicuous rounded caudal-fin base spot (vs. spot very narrow or absent); from all its congeners of the A. autrani species group (except A. mattosi and A. montanus) by having a fewer body depth (39.0 - 42.2% SL in A. tavaresi vs. 45.7 - 50.9% SL in A. autrani, 44.6 - 49.0% SL in A. barbosae, 47.3 - 51.2% SL in A. ipatinguensis, 46.6 - 49.8% SL in A. macacuensis, 44.0 - 48.2% SL in A. macaensis, 43.8 - 50.1% SL in A. muriae, 42.6 - 46.1% SL in A. paraibae, 47.4 - 51.3% SL in A. ribeirae, 43.7 - 46.0% SL in A. robustus, 44.0 - 48.2% SL in A. saquarema, 42.6 - 50.3% SL in A. capixaba); from A. saquarema, A. muriae, A. robustus, A. barbosae, A. macacuensis, A. ipatinguensis, A. paraibae and A. ribeirae by having a longer caudal peduncle (caudal peduncle length 9.8 - 11.6% SL in A. tavaresi vs. 6,6 - 8,0% SL in A. ipatinguensis, 6.7 - 9.0% SL in A. saquarema, 5.1 - 7.9% SL in A. macacuensis, 5.5 - 8.7% SL in A. barbosae, 7.1 - 8.9% SL in A. muriae, 6.4 - 8.1% SL in A. paraibae, 7.4 - 9.2% SL in A. robustus and 6.6 - 9.1% SL in A. ribeirae); from A. barbosae, A. macacuensis, A. paraibae, A. ribeirae and A. saquarema by having a fewer preorbital depth (51.2 - 60.0 % SL in A. tavaresi vs. 60.5 - 65.3% SL in A. barbosae, 62.2 - 65.4% SL in A. macacuensis, 60.4 - 65.2% SL in A. paraibae, 64.2 - 73.3% SL in A. ribeirae, 66.0 - 69.1% SL in A. saquarema); from A. macacuensis and A. montanus sp. n. by having arms of trunk bar 7 with the same width (vs. posterior arm of trunk bar 7 wider than anterior one); from A. mattosi by having anal-fin base squamation beginning at the sixth anal-fin spine (vs. anal-fin base squamation beginning at the third anal-fin spine); and from A. ribeirae by having a fewer head depth (head depth 80.6 - 94.2% HL vs. 95.4 - 98.9% HL) .

🌀 Behaviour

Behavioural data for Australoheros Tavaresi is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical South America: Upper rio Tietê drainage, upper rio Paraná basin in São Paulo, Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🦠 Common Diseases

The following diseases are known to affect Australoheros Tavaresi.

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute