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💧 Freshwater Least Concern 🌡️ Temperate

Potomac sculpin

Cottus girardi Robins, 1961
Max Length
14 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
34.00/100
Typical Length
7.8 cm
Depth Zone
demersal

📖 Overview

Potomac sculpin (Cottus girardi), first described by Robins, 1961 is a small fish in the family Cottidae (order Perciformes). Adults typically reach 14.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Temperate waters. It feeds on a mix of small fish and invertebrates as a mid-level predator. On the IUCN Red List, it is classified as Least Concern.

Scientific Name
Cottus girardi
Authority
Robins, 1961
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
14 cm
Trophic Level
3.3
Resilience
Medium
Vulnerability
34.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Potomac sculpin is currently being compiled.

🌀 Behaviour

Behavioural data for Potomac sculpin is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Temperate; 41°N - 37°N North America: in upper Potomac River drainage in Pennsylvania, Maryland, Virginia and West Virginia in the USA; and in Cowpasture River (in James River drainage) in Virginia.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.3±0.5

📐 Morphometrics

Length–Weight Relationship: W = 0.00832 × L3.16 (TL)
Max TL
14cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
34.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Temperate
Described By
Robins, 1961

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Potomac sculpin
🌍CES vranka Girardova

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 31 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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