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💧 Freshwater Data Deficient 🐠 Aquarium 🌡️ Tropical

Australoheros Montanus

Australoheros montanus Ottoni, 2012
Max Length
10.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Australoheros Montanus (Australoheros montanus), first described by Ottoni, 2012 is a small fish in the family Cichlidae (order Cichliformes). Adults typically reach 10.30 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 Data Deficient.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Cichlidae kept in the hobby.

Scientific Name
Australoheros montanus
Authority
Ottoni, 2012
Habitat
Freshwater
Climate
Tropical
IUCN Status
DD
Max Length
10.3 cm
Trophic Level
3.2
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 10 - 11; 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 (except A. macacuensis) by having posterior arm of trunk bar 7 wider than anterior one (vs. arms with the same width) from A. autrani, A. capixaba, A. macacuensis, A. macaensis, A. saquarema and A. ribeirae by having a complete red bar on posterior margin of caudal fin (vs. absence of red regions on caudal fin in A. autrani, A. capixaba, A. macacuensis, A. macaensis, A. saquarema and A. ribeirae; and two red regions on posterior margin of caudal-fin, one dorsal corner and other ventral corner in A. robustus and A. paraibae); from A. saquarema, A. muriae, A. robustus, A. barbosae, A. macacuensis, A. ipatinguensis, A. paraibae and A. ribeirae by having a longer caudal pedulce (caudal pedulce length 10.1 - 11.9 % SL in A. montanus sp. n. 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. macaensis and A. saquarema by not having depression on snout (vs. depression on snout present in specimens above 30.0 mm SL, just above eyes); from A. macacuensis by having fewer teeth along posterior margin of ceratobranchial 5 (22 - 24 vs. 25 - 29); from A. macacuensis, A. macaensis and A. autrani by having trunk bars usually forked ventrally (vs. never forked ventrally); 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); from A. tavaresi by having mouth isognathous (vs. prognathous) .

🌀 Behaviour

Behavioural data for Australoheros Montanus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 👄 Mouth Brooder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
3.2±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.01445 × L3.08 (TL)
Max TL
10.3cm
Dorsal Spines
16
Dorsal Rays
11
Anal Spines
7
Anal Rays
9
Vertebrae
26

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Tropical
Described By
Ottoni, 2012

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