River Chub
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Name and Code
Family
Leuciscidae - minnows
Species
Nocomis micropogon
Taxonomic Authority
(Cope 1865)
Common Name(s)
River Chub
French Name
méné bâton
Species Code
193
Family TSN
1198935
Parent TSN
163391
Species TSN
163392
Conservation Status
Global Rank (GRank)
G5 (2016-02-09)
National Rank (NRank)
N4 (2016-02-09)
Provincial Rank (SRank)
S4 (1988-11-22)
COSEWIC Status
Not at Risk (Apr 1988)
SARO Status
Not at Risk
AFS Status
none
Status Notes
none
Ecological Value
Ontario Origin
native/introduced
General Abundance
common
Tolerance
intermediate
Economic Importance
bait fish
Length-Weight Regression Coefficents
Intercept (a)
no data
Slope (b)
no data
Length Basis
n/a
Habitat and Feeding
General Habitat(s)
riverine
Environment
benthopelagic
Trophic Class
planktivore/invertivore
Thermal Regime
coolwater
Habitat Preference
swift currents and pools in medium sized creeks and rivers of high to moderate gradients with clean clear water and gravel to boulder substrates; preferred water temperature 21.7°C
Reproduction
Reproductive Guild
Nonguarders: Brood hiders: Lithophils
Spawning Habitat(s)
riverine
Spawning Season
spring
Spawning Month(s)
May-June
Spawning Temperature (°C)
15-20.5
Fecundity
400-725
Nursery Habitat(s)
riverine
Size and Age
Adult Length (cm)
9.4-21.6 TL
Adult Weight (kg)
0.01-0.14
Age at Maturity (yrs)
2-3 (m); 3 (f)
Maximum Length (cm)
33 TL
Maximum Weight (kg)
0.28
Lifespan (yrs)
4-5
Ontario Records
Record Length (cm)
25.6 TL
Record Weight (kg)
none
Ontario Range Map
River Chub range
Ontario Distribution
tributaries of Lakes Erie, St. Clair, western Lake Ontario and southern Lake Huron, Madawaska River (Ottawa River basin) (introduced)
Photographs
River Chub photograph
River Chub photograph
Notes
bait-bucket introductions have expanded range in Ontario; hybrids with Longnose Dace reported
Information Sources
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