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💧 Freshwater Least Concern 🌡️ Tropical

Astyanax Microschemos

Astyanax microschemos Bertaco & Lucena, 2006
Max Length
5.5 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
12.00/100
Typical Length
-
Depth Zone
-

📖 Overview

The type locality is about 2 m wide brook with clear water, segments with rapids, riparian vegetation and a substrate of stones and rocks; associated with Characidium sp., Neoplecostomus sp. and Trichomycterus sp. .

Scientific Name
Astyanax microschemos
Authority
Bertaco & Lucena, 2006
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
5.5 cm
Trophic Level
3
Resilience
High
Vulnerability
12.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Vertebrae: 35 - 36. A member of the Astyanax scabripinnis species complex that distinguishes from species outside this complex by having anal fin with 14-18 branched rays and body depth shallow (26.9-29.7% of SL). Differs from other species of the species complex by its shallow body depth (26.9-29.7% SL) and the smaller interorbital width (26.9-30.4% HL) . : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Astyanax Microschemos is currently being reviewed.

🦐 Diet

Diet information for Astyanax Microschemos is currently being compiled.

🥚 Reproduction

Reproduction data for Astyanax Microschemos is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Rio Itapemirim drainage in Espirito Santo State, Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01047 × L3.11 (TL)
Max TL
5.5cm
Vertebrae
36

🌡️ 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
12.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Bertaco & Lucena, 2006

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