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💧 Freshwater Least Concern 🌡️ Temperate

Finescale dace

Chrosomus neogaeus Cope, 1867
Max Length
11 cm
Max Weight
-
Lifespan
6 yrs
Trophic Level
2.6
Depth
-
Climate
Temperate
Resilience
Medium
Vulnerability
25.00/100
Typical Length
6 cm
Depth Zone
demersal

📖 Overview

Adults occur in lakes, ponds and sluggish pools of headwaters, creeks and small rivers, usually over silt and near vegetation . They probably feed on insects, crustaceans, and plankton . Spawning probably occurs in the spring . Commonly hybridizes with Chrosomus eos. The hybrids are always females and in some areas are more common than the parental species. Hybrids breed with males of the parental species and consequently can outnumber and even replace one of the parent species .

Scientific Name
Chrosomus neogaeus
Authority
Cope, 1867
Habitat
Freshwater
Climate
Temperate
IUCN Status
LC
Max Length
11 cm
Lifespan
6 years
Trophic Level
2.6
Resilience
Medium
Vulnerability
25.00/100
Migration
Non-migratory
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Chrosomus neogaeus can be distinguished by having the following characters: 63-92 scales on lateral line; pharyngeal teeth 2,5-4,2; large head; large terminal mouth extending under eye; rounded snout; dark brown to gray cape on back and upper side; body well specked with black; dark olive to gold stripe along side, light olive between cape and stripe; silver white below; usually a black caudal spot; clear to yellow fins; and red along side in large males .

🌀 Behaviour

Behavioural data for Finescale dace is currently being reviewed.

🦐 Diet

Diet information for Finescale dace is currently being compiled.

🥚 Reproduction

Reproduction data for Finescale dace is currently being compiled.

🌍 Habitat & Distribution

Freshwater; demersal; non-migratory . Temperate; 62°N - 41°N North America: Atlantic, Great Lakes, Hudson Bay, and upper Mississippi, Missouri, and Peace-Mackenzie River drainages from New Brunswick to Yukon Territory and British Columbia in Canada; south to New York, Wisconsin and Wyoming in USA.

🌿 Ecology

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

insects, crustaceans, and plankton (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L3.03 (TL)
Max TL
11cm

🌡️ 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
25.00/100
Low vulnerability
Trophic Level
2.6
Omnivore / Planktivore
Climate Zone
Temperate
Described By
Cope, 1867

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