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💧 Freshwater Critically Endangered 🌡️ Tropical

Austrolebias Ephemerus

Austrolebias ephemerus Neto, 2019
Max Length
3.2 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Inhabits highly seasonal environment, in small temporary pools, with muddy bottom and slightly turbid water. Maximum length based on type specimen, to be replaced with a better reference .

Scientific Name
Austrolebias ephemerus
Authority
Neto, 2019
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
CR
Max Length
3.2 cm
Trophic Level
3.1
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

This species can be distinguished from other congeners by the following combination of characters: posterior margins of pectoral fins vertical between bases of 5th and 7th anal fin rays in females, greater number of gill rakers on 1st branchial arch, a lower head width in both sexes, a small number of neuromasts in the preopercular series, urogenital papilla attached 60-100% of its length to anal fin males, more rows of scales in transversal series, location of dorsal fin origin relative to the neural spines in both sexes, and reduction in number of dorsal and anal fin rays in both sexes.: fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Austrolebias Ephemerus is currently being reviewed.

🦐 Diet

Diet information for Austrolebias Ephemerus is currently being compiled.

🥚 Reproduction

Reproduction data for Austrolebias Ephemerus is currently being compiled.

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
3.1±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
3.2cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.1
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Neto, 2019

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