New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

💧 Freshwater Near Threatened 🌡️ Tropical

Swamp toothcarp

Cnesterodon septentrionalis Rosa & Costa, 1993
Max Length
3 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
16.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Swamp toothcarp (Cnesterodon septentrionalis) is a ray-finned fish of the family Poeciliidae. It inhabits freshwater waters. This species can reach a maximum total length of 3 cm. With a trophic level of 3, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Near Threatened on the IUCN Red List.

Scientific Name
Cnesterodon septentrionalis
Authority
Rosa & Costa, 1993
Habitat
Freshwater
Climate
Tropical
IUCN Status
NT
Max Length
3 cm
Trophic Level
3
Resilience
High
Vulnerability
16.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 7; Anal soft rays: 8 - 9.

🌀 Behaviour

Behavioural data for Swamp toothcarp is currently being reviewed.

🦐 Diet

Diet information for Swamp toothcarp is currently being compiled.

🥚 Reproduction

Reproduction data for Swamp toothcarp is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical South America: upper Araguaia River basin, Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00851 × L3.15 (TL)
Max TL
3cm
Dorsal Rays
7
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
16.00/100
Low vulnerability
Trophic Level
3
Predator
Climate Zone
Tropical
Described By
Rosa & Costa, 1993

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Swamp toothcarp ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.