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💧 Freshwater 🌡️ Subtropical

Gurley darter

Etheostoma gurleyense Brownstein, Kim, Wood, Alley, Stokes & Near, 2025
Max Length
6 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
16.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Gurley darter (Etheostoma gurleyense), first described by Brownstein, Kim, Wood, Alley, Stokes & Near, 2025 is a small fish in the family Percidae (order Perciformes). Adults typically reach 6.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Etheostoma gurleyense
Authority
Brownstein, Kim, Wood, Alley, Stokes & Near, 2025
Habitat
Freshwater
Climate
Subtropical
Body Shape
Elongated
Max Length
6 cm
Trophic Level
3.3
Resilience
High
Vulnerability
16.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 10. This species is distinguished from its congeners by the following set of characters: possession of a rare allozyme allele of pyruvate kinase, pigmentation and coloration patterns of nuptial males; ventrolateral vermilion-coloured band is 1?2 scale-rows wide and occasionally interrupted; average of 49.3 lateral line scales, modally 10 dorsal fin spines, and modally 14 pectoral fin rays .: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Gurley darter 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. Subtropical North America: USA.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00676 × L3.12 (TL)
Max TL
6cm
Dorsal Spines
10

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
16.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Brownstein, Kim, Wood, Alley, Stokes & Near, 2025

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