Shortnose Cisco
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Name and Code
Family
Salmonidae - trouts and salmons
Species
Coregonus reighardi
Taxonomic Authority
(Koelz, 1924)
Common Name(s)
Shortnose Cisco
French Name
cisco à museau court
OMNR Code
099
Family TSN
161931
Parent TSN
161932
Species TSN
161947
Conservation Status
Global Rank (GRank)
GH (2011-11-07)
National Rank (NRank)
NH (2002-08-22)
Provincial Rank (SRank)
SH (2008-05-15)
COSEWIC Status
Endangered (April 2017)
SARO Status
Endangered
AFS Status
Possibly Extinct (1,2,4)
Ecological Value
Ontario Origin
endemic
General Abundance
rare
Tolerance
intolerant
Economic Importance
commercial fishery (historical)
Habitat and Feeding
General Habitat(s)
lacustrine
Environment
pelagic
Trophic Class
planktivore
Thermal Regime
coldwater
Habitat Preference
clear, deep waters (22-92 m), typically 50-68 m, at water temperatures of 2-10°C
Reproduction
Reproductive Guild
Nonguarders: Open substratum spawners: Pelagophils
Spawning Habitat(s)
lacustrine
Spawning Season
spring
Spawning Month(s)
April-June
Spawning Temperature (°C)
4-5
Fecundity
15,000
Nursery Habitat(s)
lacustrine
Size and Age
Adult Length (cm)
23.9-31.0 TL
Adult Weight (kg)
0.12-0.23
Age at Maturity (yrs)
2-4
Maximum Length (cm)
37.1 TL
Maximum Weight (kg)
0.539
Lifespan (yrs)
9 (m); 11 (f)
Ontario Range Map
Shortnose Cisco range
Ontario Distribution
Lake Huron (extirpated), Lake Ontario (extirpated); last reported from Lake Ontario in 1964 and Lake Huron (Georgian Bay) in 1985
Photograph
Shortnose Cisco photograph
Notes
possible synonym of Coregonus zenithicus; hybrids with Bloater are reported; may be extinct
Ontario Records
Record Length (cm)
35.0 TL
Record Weight (kg)
none
Information Sources
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COSEWIC. 2016. Canadian wildlife species at risk. October 2016. Committee on the Status of Endangered Wildlife in Canada. Gatineau, QC. iv + 113 pp.
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