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💧 Freshwater 🌡️ Tropical

Astyanax Embera

Astyanax embera Valencia, Taphorn, Buckup & Ortega, 2018
Max Length
8.3 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
19.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Astyanax Embera (Astyanax embera), first described by Valencia, Taphorn, Buckup & Ortega, 2018 is a small fish in the family Acestrorhamphidae (order Characiformes). Adults typically reach 8.30 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.

Scientific Name
Astyanax embera
Authority
Valencia, Taphorn, Buckup & Ortega, 2018
Habitat
Freshwater
Climate
Tropical
Max Length
8.3 cm
Trophic Level
2.9
Resilience
High
Vulnerability
19.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

This species, a member of the orthodus species-group of Astyanax, differs from other members of the group by the following characters: differs from villwocki, superbus, gandhiae, bopiensi, boliviensis, yariguies by the absence of a dark stripe on the sides of the body (vs. dark lateral stripe present or anterior prolongation of the caudal peduncle spot extending anteriorly over the silvery lateral stripe); differs from A. orthodus in having the caudal peduncle spot extending onto the ventral and dorsal margins of the caudal peduncle, covering 4-6 horizontal scale rows (vs. covering 2-4 horizontal scale rows on the caudal peduncle) and in having an unpigmented band across the anal-fin rays in both sexes (vs.pigmentation uniform on analfin rays); differs from A. moorii in body depth > 39% SL (vs. < 39% SL), the dorsal-pectoral fin distance > 40.5% SL (vs. < 40.5% SL), maxilla length < 33.5% HL (vs. > 33.5% SH), upper jaw length < 32% HL (vs. > 47% SH) and by the number of lateral-line scales 36-41 (vs. 44-50) .Cross section: compressed.

🌀 Behaviour

Behavioural data for Astyanax Embera 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, Colombia.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01905 × L3.01 (TL)
Max TL
8.3cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
19.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Valencia, Taphorn, Buckup & Ortega, 2018

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