Rudd
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Name and Code
Family
Cyprinidae - carps and minnows
Species
Scardinius erythrophthalmus
Taxonomic Authority
(Linnaeus, 1758)
Common Name(s)
Rudd
French Name
gardon rouge
OMNR Code
220
Family TSN
163342
Parent TSN
163612
Species TSN
163613
Conservation Status
Global Rank (GRank)
G5 (1996-09-17)
National Rank (NRank)
NNA (1996-09-05)
Provincial Rank (SRank)
SNA (1997-10-02)
COSEWIC Status
none
SARO Status
none
AFS Status
none
Ecological Value
Ontario Origin
introduced
General Abundance
rare
Tolerance
tolerant
Economic Importance
invasive species
Habitat and Feeding
General Habitat(s)
lacustrine; riverine
Environment
benthopelagic
Trophic Class
invertivore/herbivore
Thermal Regime
coolwater
Habitat Preference
clear, weedy, quiet waters of streams, rivers and lakes
Reproduction
Reproductive Guild
Nonguarders: Open substratum spawners: Phyto-lithophils
Spawning Habitat(s)
lacustrine; riverine
Spawning Season
spring
Spawning Month(s)
May-June
Spawning Temperature (°C)
14-20
Fecundity
23,019-232,000
Nursery Habitat(s)
lacustrine; riverine
Size and Age
Adult Length (cm)
20.7-35.6 TL
Adult Weight (kg)
0.1-0.4
Age at Maturity (yrs)
3 (m); 4 (f)
Maximum Length (cm)
62 TL
Maximum Weight (kg)
3.62
Lifespan (yrs)
11-19
Ontario Range Map
Rudd range
Ontario Distribution
St. Lawrence River, western Lake Ontario, eastern Lake Erie, Wilcox Lake (Lake Ontario watershed); first reported from Ontario waters of St. Lawrence River in 1990
Photograph
Rudd photograph
Notes
indigenous to Europe; expanding its range from United States introductions; tolerant of low dissolved oxygen; hybrids with Golden Shiner reported; adults exhibit schooling behaviour; use as live bait prohibited
Ontario Records
Record Length (cm)
38.5 TL
Record Weight (kg)
none
Information Sources
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Coker, G.A., C.B. Portt, and C.K. Minns. 2001. Morphological and ecological characteristics of Canadian freshwater fishes. Can. MS Rpt. Fish. Aquat. Sci. 2554:iv+89p.
Crossman, E.J., E. Holm, R. Cholmondeley, and K. Tuininga. 1992. First record for Canada of the Rudd, Scardinius erythrophthalmus, and notes on the introduced Round Goby, Neogobius melanostomus. Can. Field-Nat. 106(2):206-209.
Cudmore, B. and N.E. Mandrak. 2011. The baitfish primer: a guide to identifying and protecting Ontario’s baitfishes. Fisheries and Oceans Canada, Bait Association of Ontario, Ontario Ministry of Natural Resources and Ontario Federation of Anglers and Hunters. 40 pp.
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