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💧 Freshwater 🌡️ Tropical

Astyanax Cubilhuitz

Astyanax cubilhuitz Soto, 2017
Max Length
5.3 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Astyanax Cubilhuitz (Astyanax cubilhuitz), first described by Soto, 2017 is a small fish in the family Acestrorhamphidae (order Characiformes). Adults typically reach 5.30 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 cubilhuitz
Authority
Soto, 2017
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
Max Length
5.3 cm
Trophic Level
3
Resilience
High
Vulnerability
11.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 9; Anal soft rays: 21 - 26; Vertebrae: 32 - 33. Astyanax cubilhuitz is distinguised from other congeners in north-eastern Guatemala and Belize by having body depth 35% SL or less (35% or more in A. bacalarensis and A. belizianus), eye larger, diameter 35% HL (vs. 32% or less), mean predorsal length, 52% SL (49% in A. macal and A. petenensis), mean anal-base length, 26% SL (vs. 28% or more), longest anal-fin ray, mean 17% SL (vs. 14%), upper pharyngeal plate oval in shape (crescent-shaped, in A. belizianus); and humeral spot rectangular in shape (vs. indistinct or P-shaped) .: fusiform / normal.

🌀 Behaviour

Behavioural data for Astyanax Cubilhuitz is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical Central America: Río Dolores in Alta Verapaz, Guatemala.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.01047 × L3.11 (TL)
Max TL
5.3cm
Dorsal Rays
9
Anal Rays
24
Vertebrae
33

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Soto, 2017

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