Name and Code |
Family |
Catostomidae - suckers |
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Species |
Moxostoma valenciennesi |
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Taxonomic Authority |
Jordan 1885 |
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Common Name(s) |
Greater Redhorse |
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French Name |
chevalier jaune |
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Conservation Status |
Global Rank (GRank) |
G4 (2001-02-20) |
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National Rank (NRank) |
N4 (2017-12-28) |
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Provincial Rank (SRank) |
S3 (1997-10-09) |
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AFS Status |
Vulnerable (1) |
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Ecological Value |
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General Abundance |
uncommon |
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Length-Weight Regression Coefficents |
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Habitat and Feeding |
General Habitat(s) |
lacustrine, riverine |
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Trophic Class |
invertivore |
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Habitat Preference |
moderate to swift current riffles, runs and pools of medium to large rivers with clear water and substrates of gravel, cobble or boulders; lakes |
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Reproduction |
Reproductive Guild |
Nonguarders: Open substratum spawners: Lithophils |
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Spawning Habitat(s) |
riverine |
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Spawning Month(s) |
May-June |
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Spawning Temperature (°C) |
13-19 |
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Nursery Habitat(s) |
riverine |
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Size and Age |
Adult Length (cm) |
38.1-61.6 TL |
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Adult Weight (kg) |
0.5-2.2 |
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Age at Maturity (yrs) |
5 (m); 6 (f) |
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Maximum Length (cm) |
80 TL |
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Ontario Records |
Record Length (cm) |
68.8 TL |
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Ontario Range Map |
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Ontario Distribution |
Ottawa River and tributaries, tributaries of Lakes Ontario, Erie, St. Clair and Huron, north to Spanish River, English River, Lake-of-the-Woods |
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Photographs |
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Notes |
sensitive to turbidity, siltation and pollution; use as bait prohibited |
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