Silver Redhorse
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Name and Code
Family
Catostomidae - suckers
Species
Moxostoma anisurum
Taxonomic Authority
(Rafinesque, 1820)
Common Name(s)
Silver Redhorse
French Name
chevalier blanc
OMNR Code
168
Family TSN
163892
Parent TSN
163927
Species TSN
163933
Conservation Status
Global Rank (GRank)
G5 (2015-08-18)
National Rank (NRank)
N5 (2015-08-18)
Provincial Rank (SRank)
S4 (1988-11-22)
COSEWIC Status
none
SARO Status
none
AFS Status
none
Ecological Value
Ontario Origin
native
General Abundance
uncommon
Tolerance
intermediate
Economic Importance
none
Habitat and Feeding
General Habitat(s)
lacustrine; riverine
Environment
benthic
Trophic Class
invertivore
Thermal Regime
coolwater
Habitat Preference
mud- to rock-bottomed pools and runs of small to large rivers; occasionally lakes and impoundments
Reproduction
Reproductive Guild
Nonguarders: Open substratum spawners: Lithophils
Spawning Habitat(s)
riverine
Spawning Season
spring
Spawning Month(s)
April-June
Spawning Temperature (°C)
9-14.5
Fecundity
14,910-36,340
Nursery Habitat(s)
riverine
Size and Age
Adult Length (cm)
33.8-60.2 TL
Adult Weight (kg)
0.4-2.3
Age at Maturity (yrs)
5-8
Maximum Length (cm)
74 TL
Maximum Weight (kg)
6.75
Lifespan (yrs)
12-26
Ontario Range Map
Silver Redhorse range
Ontario Distribution
widespread throughout the province
Photograph
Silver Redhorse photograph
Notes
sensitive to siltation and pollution; moderately intolerant of turbidity
Ontario Records
Record Length (cm)
68.6 TL
Record Weight (kg)
4.0
Information Sources
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