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💧 Freshwater Least Concern 🌡️ Temperate

Riffle minnow

Phenacobius catostomus Jordan, 1877
Max Length
12 cm
Max Weight
Lifespan
Trophic Level
2.9
Depth
Climate
Temperate
Resilience
High
Vulnerability
27.00/100
Typical Length
7.5 cm
Depth Zone
demersal

📖 Overview

Adults inhabit gravel and rubble runs and riffles of creeks and small to medium rivers . Migratory behaviour is undetermined .

Scientific Name
Phenacobius catostomus
Authority
Jordan, 1877
Habitat
Freshwater
Climate
Temperate
Body Shape
Elongated
IUCN Status
LC
Max Length
12 cm
Trophic Level
2.9
Resilience
High
Vulnerability
27.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Phenacobius catostomus can be distinguished by having the following characters: body very long, cylindrical; lips as in suckermouth minnow, P. mirabilis; eyes high on head, directed upwardly; back dark gray-brown; upper side light brown; silver sheen over dusky stripe along side; 56-69 scales on lateral line; 15-19 scales around caudal peduncle .: elongated.

🌀 Behaviour

Behavioural data for Riffle minnow is currently being reviewed.

🦐 Diet

Diet information for Riffle minnow is currently being compiled.

🥚 Reproduction

Reproduction data for Riffle minnow is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal. Temperate; 35°N - 32°N North America: Mobile Bay drainage in southeastern Tennessee, northwestern Georgia and Alabama, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.1 (TL)
Max TL
12cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Temperate
Described By
Jordan, 1877

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Riffle Minnow

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Riffle minnow ↗
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