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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Astyanax Totae

Astyanax totae Ferreira Haluch & Abilhoa, 2005
Max Length
8.2 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
17.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Found in headwater stream with clear water, light to moderate water current and bottom consisting of stones, sand and moderate amount of vegetal debris . Feeds most frequently on microcrustaceans (Cladocera and Copepoda), insect larvae (Chironomidae), adult insects and plant fragments .

Scientific Name
Astyanax totae
Authority
Ferreira Haluch & Abilhoa, 2005
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
8.2 cm
Trophic Level
2.9
Resilience
High
Vulnerability
17.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Distinguished from most species of Astyanax by the vertically elongated humeral spot, slightly expanded above the lateral line to posterodorsal margin of opercle, followed by a midlateral dark stripe expanded from the humeral region to the median caudal-fin rays, maxilla with 2-5 teeth (usually 3) and anal fin with 15-18 branched rays .

🌀 Behaviour

Behavioural data for Astyanax Totae is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Cascata of the upper rio Iguaçu basin in Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01047 × L3.11 (TL)
Max TL
8.2cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
17.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Ferreira Haluch & Abilhoa, 2005

👥 Community & Contribute

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