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

💧 Freshwater Near Threatened 🌡️ Temperate

Olive darter

Percina squamata Gilbert & Swain, 1887
Max Length
13 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
25.00/100
Typical Length
8.9 cm
Depth Zone
-

📖 Overview

Inhabits moderately deep boulder riffles and runs of small to medium rivers . Feeds on hydropsychid caddis larvae and heptageniid mayfly nymphs .

Scientific Name
Percina squamata
Authority
Gilbert & Swain, 1887
Habitat
Freshwater
Climate
Temperate
IUCN Status
NT
Max Length
13 cm
Trophic Level
3.4
Resilience
High
Vulnerability
25.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Olive darter is currently being compiled.

🌀 Behaviour

Behavioural data for Olive darter is currently being reviewed.

🦐 Diet

Diet information for Olive darter is currently being compiled.

🥚 Reproduction

Reproduction data for Olive darter is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Temperate; 36°N - 34°N North America: middle Cumberland River drainage (Big South Fork and Rockcastle River) in Kentucky and Tennessee, and in the upper Tennessee River drainage in North Carolina, Tennessee and Georgia in the USA.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.4±0.4
Food Items

hydropsychid caddis larvae and heptageniid mayfly nymphs (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00575 × L3.13 (TL)
Max TL
13cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Near Threatened
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
25.00/100
Low vulnerability
Trophic Level
3.4
Predator
Climate Zone
Temperate
Described By
Gilbert & Swain, 1887

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Etheostoma squamatus Gilbert & Swain 1887 Synonym

🗺️ 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
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Olive darter ↗
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Spotted incorrect or outdated data?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.