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💧 Freshwater Least Concern 🌡️ Tropical

Australoheros Mattosi

Australoheros mattosi Ottoni, 2012
Max Length
9.3 cm
Max Weight
Lifespan
Trophic Level
3.2
Depth
Climate
Tropical
Resilience
Vulnerability
14.00/100
Typical Length
Depth Zone
pelagic

📖 Overview

Overview information for Australoheros Mattosi is currently being compiled by our editorial team.

Scientific Name
Australoheros mattosi
Authority
Ottoni, 2012
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
9.3 cm
Trophic Level
3.2
Vulnerability
14.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 16 - 17; Dorsal soft rays (total): 9 - 10; Anal spines: 6 - 8; Anal soft rays: 8 - 9; Vertebrae: 26. Can be diagnosed 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 by having anal-fin base squamation beginning at the third anal-fin spine (vs. anal-fin base squamation beginning at the sixth anal-fin spine); from A. autrani, A. barbosae, A. ipatinguensis, A. macaensis, A. macacuensis, A. muriae, A. paraibae, A. robustus, A. saquarema and A. montanus by having fewer proximal radials on anal-fin base (12 in A. mattosi vs. 13 in A. ipatinguensis, A. macacuensis, A. robustus and A. montanus; 13 - 14 in A. autrani, A. barbosae, A. macaensis, A. muriae and A. paraibae; and 14 - 15 in A. saquarema); from A. tavaresi by having mouth isognathous (vs. prognathous); and from A. ribeirae by having last dorsal-fin spine shorter (last dorsal-fin spine length 13.2 - 15.4% SL vs. 16.0 - 16.8% SL) .: elongated.

🌀 Behaviour

Behavioural data for Australoheros Mattosi is currently being reviewed.

🦐 Diet

Diet information for Australoheros Mattosi is currently being compiled.

🥚 Reproduction

Reproduction data for Australoheros Mattosi is currently being compiled.

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical South America: Rio Paraopeba and rio das Velhas drainages, rio São Francisco basin in Minas Gerais state, Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.0138 × L3.21 (TL)
Max TL
9.3cm
Dorsal Spines
17
Dorsal Rays
10
Anal Spines
7
Anal Rays
9
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ottoni, 2012

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