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💧 Freshwater Data Deficient 🌡️ Tropical

Astyanax Yariguies

Astyanax yariguies Mejia, Hernández & Senechal, 2012
Max Length
7.7 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Overview information for Astyanax Yariguies is currently being compiled by our editorial team.

Scientific Name
Astyanax yariguies
Authority
Mejia, Hernández & Senechal, 2012
Habitat
Freshwater
Climate
Tropical
IUCN Status
DD
Max Length
7.7 cm
Trophic Level
2.9
Resilience
High
Vulnerability
15.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 10 - 11; Anal soft rays: 31 - 33; Vertebrae: 35 - 37. Distinguished from other congeners by having the following characters: predorsal scale series regular with 13 scales; maxilla with six teeth; nine scale rows between dorsal-fin origin and lateral line; and snout length 14.9-25.3 % of head length. Can be separated easily from other characins (except for Astyanacinus orthodus) by its coloration pattern consisting of two humeral spots, midlateral stripe formed by anteriorly oriented chevron bars, and horizontally oriented oval-shaped caudal spot that continues over median caudal rays and never reaches a vertical through the last anal-fin ray base. Differs also from species of Astyanax by the combination of 6 teeth in maxilla, 13 scales in a regular predorsal series, 36-39 lateral line scales, 9 scale rows above and 7 scale rows below the lateral line, ii-iii 28-30 anal fin rays, and a maximum body depth 35.4-43.2% of SL . Description:

🌀 Behaviour

Behavioural data for Astyanax Yariguies is currently being reviewed.

🦐 Diet

Diet information for Astyanax Yariguies is currently being compiled.

🥚 Reproduction

Reproduction data for Astyanax Yariguies is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: tributaries of the Río Cascajales, in Río La Colorada basin, Río Magdalena system in Colombia.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01047 × L3.11 (TL)
Max TL
7.7cm
Dorsal Rays
11
Anal Rays
32
Vertebrae
36

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Data Deficient
Assessment Date
2014

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
15.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Mejia, Hernández & Senechal, 2012

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