Kiyi
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Name and Code
Family
Salmonidae - trouts and salmons
Species
Coregonus kiyi
Taxonomic Authority
(Koelz 1921)
Common Name(s)
Kiyi
French Name
cisco kiyi
Species Code
096
Family TSN
161931
Parent TSN
161932
Species TSN
161945
Conservation Status
Global Rank (GRank)
G3G4 (2011-11-04)
National Rank (NRank)
N3 (2017-12-29)
Provincial Rank (SRank)
S31, SX2 (2009-01-06)
COSEWIC Status
Special Concern1, Extinct2 (May 2005)
SARO Status
Special Concern1, Extinct2 (2008)
AFS Status
Possibly Extinct2 (1,2,4)
Status Notes
(1) Upper Great Lakes Kiyi; (2) Lake Ontario subspecies (C. kiyi orientalis)
Ecological Value
Ontario Origin
endemic
General Abundance
uncommon
Tolerance
intolerant
Economic Importance
commercial fishery (historical)
Length-Weight Regression Coefficents
Intercept (a)
-5.0343
Slope (b)
3.077
Length Basis
SL
Habitat and Feeding
General Habitat(s)
lacustrine
Environment
pelagic
Trophic Class
planktivore
Thermal Regime
coldwater
Habitat Preference
clear, cold, deep waters (55-165 m), usually >110 m; preferred water temperature range 3.7-4.6°C
Reproduction
Reproductive Guild
Nonguarders: Open substratum spawners: Litho-pelagophils
Spawning Habitat(s)
lacustrine
Spawning Season
fall
Spawning Month(s)
October-December
Spawning Temperature (°C)
2-4
Fecundity
14,000
Nursery Habitat(s)
lacustrine
Size and Age
Adult Length (cm)
17.3-27.4 TL
Adult Weight (kg)
0.04-0.16
Age at Maturity (yrs)
2-4
Maximum Length (cm)
35.1 TL
Maximum Weight (kg)
0.332
Lifespan (yrs)
7-8 (m); 9-10 (f)
Ontario Records
Record Length (cm)
32.5 TL
Record Weight (kg)
none
Ontario Range Map
Kiyi range
Ontario Distribution
Lake Superior, Lake Huron (extirpated), Lake Ontario (extirpated); last reported from Lake Huron in 1973 and Lake Ontario in 1964
Photographs
Kiyi photograph
Kiyi photograph
Notes
hybrids with Bloater are reported
Information Sources
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