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

💧 Freshwater Extinct 🌡️ Tropical

Stumptooth minnow

Stypodon signifer Garman, 1881
Max Length
-
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
39.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Stumptooth minnow (Stypodon signifer) is a ray-finned fish. It inhabits freshwater waters. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Extinct on the IUCN Red List.

Scientific Name
Stypodon signifer
Authority
Garman, 1881
Habitat
Freshwater
Climate
Tropical
IUCN Status
EX
Trophic Level
2.9
Resilience
Medium
Vulnerability
39.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Stypodon
Stypodon
Species
Stumptooth minnow
Stypodon signifer

🐟 Physical Description

Physical description for Stumptooth minnow is currently being compiled.

🌀 Behaviour

Behavioural data for Stumptooth minnow 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 North America: Mexico.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.1 (TL)

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Extinct
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
39.00/100
Moderate vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Garman, 1881

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Stumptooth minnow ↗
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Spotted incorrect or outdated data?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.