Bloater
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Name and Code
Family
Salmonidae - trouts and salmons
Species
Coregonus hoyi
Taxonomic Authority
(Milner 1874)
Common Name(s)
Bloater
French Name
cisco de fumage
Species Code
094
Family TSN
161931
Parent TSN
161932
Species TSN
161943
Conservation Status
Global Rank (GRank)
G4 (2011-11-04)
National Rank (NRank)
N4 (2016-02-09)
Provincial Rank (SRank)
S4 (1989-11-22)
COSEWIC Status
Not at Risk (Apr 1988)
SARO Status
Not at Risk
AFS Status
none
Status Notes
none
Ecological Value
Ontario Origin
endemic
General Abundance
common
Tolerance
intolerant
Economic Importance
commercial fishery; forage fish
Length-Weight Regression Coefficents
Intercept (a)
-5.429
Slope (b)
3.111
Length Basis
TL
Habitat and Feeding
General Habitat(s)
lacustrine
Environment
pelagic
Trophic Class
planktivore/invertivore
Thermal Regime
coldwater
Habitat Preference
clear, deep waters (38-121 m), usually 55-91 m, at water temperatures of 1.5-11.4°C; preferred water temperature range 4-7°C
Reproduction
Reproductive Guild
Nonguarders: Open substratum spawners: Litho-pelagophils
Spawning Habitat(s)
lacustrine
Spawning Season
fall-winter
Spawning Month(s)
November-March
Spawning Temperature (°C)
<5
Fecundity
1,387-34,891
Nursery Habitat(s)
lacustrine
Size and Age
Adult Length (cm)
20.3-30.4 TL
Adult Weight (kg)
0.06-0.20
Age at Maturity (yrs)
2-3
Maximum Length (cm)
39.5 TL
Maximum Weight (kg)
0.351
Lifespan (yrs)
9-10 (m); 10-11 (f)
Ontario Records
Record Length (cm)
39.5 TL
Record Weight (kg)
none
Ontario Range Map
Bloater range
Ontario Distribution
Lake Superior, Lake Huron, Lake Nipigon and Lake Ontario (extirpated); last reported from Lake Ontario in 1983; Lake Ontario re-introduction ongoing
Photographs
Bloater photograph
Bloater photograph
Notes
hybrids with Kiyi are reported
Information Sources
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