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💧 Freshwater 🌡️ Tropical

Cnesterodon Pampeanus

Cnesterodon pampeanus Taglioretti, Rossin, Irigoitia & Timi, 2025
Max Length
2 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
10.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Cnesterodon Pampeanus (Cnesterodon pampeanus) is a ray-finned fish of the family Poeciliidae. It inhabits freshwater waters. This species can reach a maximum total length of 2 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Cnesterodon pampeanus
Authority
Taglioretti, Rossin, Irigoitia & Timi, 2025
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
2 cm
Trophic Level
3
Resilience
High
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 7; Anal soft rays: 7 - 8; Vertebrae: 31. This species is distinguished from its congeners by the following set of characters: 7-10 irregular dark-brown dashes on the flanks, becoming circular toward the caudal end, with spots covering 1-3 scales in transverse row; dark-brown longitudinal line along flank; males and juvenile females with dark midventral postanal line, extending to caudal peduncle; post-gonopodium blotch absent in flanks of males and juvenile females; bony style at gonopodial tip of adult males relatively short and strongly curved dorsally, bearing a V-shaped ventral structure, formed by two short bony projections at its subdistal end; bony style covered by a broad membrane; terminal filament of gonopodium absent; and snout pointed and long (18.3%-24.9% HL) .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Cnesterodon Pampeanus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Viviparous 🤰 Viviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
Internal

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: Argentina.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.15 (TL)
Max TL
2cm
Dorsal Rays
7
Anal Rays
8
Vertebrae
31

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Taglioretti, Rossin, Irigoitia & Timi, 2025

🦠 Common Diseases

The following diseases are known to affect Cnesterodon Pampeanus.

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