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💧 Freshwater Endangered 🌡️ Temperate

Blackside dace

Chrosomus cumberlandensis Starnes & Starnes, 1978
Max Length
7.6 cm
Max Weight
-
Lifespan
4 yrs
Trophic Level
2.6
Depth
-
Climate
Temperate
Resilience
High
Vulnerability
14.00/100
Typical Length
5.5 cm
Depth Zone
demersal

📖 Overview

Adults inhabit rocky pools of headwaters and creeks. They are usually found along undercut banks, near large rocks or among detritus . They feed on attached algal growth and aquatic insect immatures .

Scientific Name
Chrosomus cumberlandensis
Authority
Starnes & Starnes, 1978
Habitat
Freshwater
Climate
Temperate
IUCN Status
EN
Max Length
7.6 cm
Lifespan
4 years
Trophic Level
2.6
Resilience
High
Vulnerability
14.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🐟 Physical Description

Chrosomus cumberlandensis can be distinguished by having the following characters: two dusky stripes along side converge on caudal peduncle, coalesce into wide black stripe on large male; back and upper side with many black specks; 66-81 scales on lateral line; pharyngeal teeth 0,5-5,0; olive to green-gold above, silver white to red below; large male bright red below, behind opercle, and at base of dorsal fin; bright silver pectoral and pelvic fin bases, yellow fins; body moderately compressed; pointed snout and slightly subterminal mouth .

🌀 Behaviour

Behavioural data for Blackside dace 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; non-migratory . Temperate; 38°N - 36°N North America: upper Cumberland River drainage (Big South Fork and above) in Kentucky and Tennessee, USA.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Migration
Non-migratory
Trophic Level
2.6±0.26
Food Items

attached algal growth and aquatic insect immatures (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7.6cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2011

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
14.00/100
Low vulnerability
Trophic Level
2.6
Omnivore / Planktivore
Climate Zone
Temperate
Described By
Starnes & Starnes, 1978

🦠 Common Diseases

The following diseases are known to affect Blackside dace.

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