Lake Ontario and Great Lakes kiyi COSEWIC assessment and status report: chapter 1
Assessment Summary
Assessment Summary – May 2005
Common name: Lake Ontario kiyi
Scientific name: Coregonus Kiyi Orientalis
Status: Extinct
Reason for designation: Last recorded from Lake Ontario in 1964, the subspecies was driven to extinction by commercial exploitation, and predation/competition by introduced species.
Occurrence: Formerly Ontario
Status history: Designated Special Concern in April 1988. Split into two subspecies (Upper Great Lakes kiyi and Lake Ontario kiyi) in May 2005. The Lake Ontario kiyi was designated Extinct in May 2005. Last assessment based on an update status report.
Assessment Summary – May 2005
Common name: Upper Great Lakes kiyi
Scientific name: Coregonus kiyi kiyi
Status: Special Concern
Reason for designation: Currently found only in Lake Superior, the subspecies has been extirpated from lakes Huron and Michigan, as the result of a complex of factors, which included exploitation and introduced exotic species. The extirpation in lakes Huron and Michigan occurred more than three generations in the past. The remaining population in Lake Superior appears to be stable, and supports a small, regulated fishery. Other threats, such as the introduction of exotic species, which impacted populations in the lower lakes do not appear to be important in Lake Superior.
Occurrence: Ontario
Status history: Designated Special Concern in April 1988. Split into two subspecies (Upper Great Lakes kiyi and Lake Ontario kiyi) in May 2005. The Upper Great Lakes kiyi was designated Special Concern in May 2005. Last assessment based on an update status report.
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