Species Profile

Chinook Salmon East Vancouver Island, Ocean, Summer population

Scientific Name: Oncorhynchus tshawytscha
Taxonomy Group: Fishes
COSEWIC Range: British Columbia, Pacific Ocean
COSEWIC Assessment Date and Status Change: November 2020
COSEWIC Status: Endangered
COSEWIC Status Criteria: C2a(ii)
COSEWIC Reason for Designation: Mature fish in this population return in summer to spawn in the upper reaches of rivers draining the east side of Vancouver Island, from the Koksilah River in the south to the Puntledge River in the north. According to a consensus of expert opinion, fewer than 1000 wild spawners remain in this population. Exploitation rates are relatively high (about 40%), and marine survival estimates have been low for many years. Additional threats include ecosystem modifications (dam construction and channelization) and drought. The contribution of fish from hatcheries confounds the determination of population trends; hatchery-origin spawners may be a continued threat through direct competition and gene flow.
COSEWIC History of Status Designation: Designated Endangered in November 2020.
SARA Status: No schedule, No Status
Date of Listing (yyyy-mm-dd):

No schedule - No Status

Individuals of this species may be protected under Schedule 1 under another name; for more information see Schedule 1, the A-Z Species List, or if applicable, the Related Species table below.

Please note that this information is provided for general information purposes only. For the most up to date and accurate list of species listed under the Species at Risk Act, please see the Justice Laws Website.

Go to advanced search

Quick Links: | Protection | National Recovery Program | Documents

Protection

Federal Protection

Provincial and Territorial Protection

To know if this species is protected by provincial or territorial laws, consult the provinces' and territories' websites.

Top

Documents

PLEASE NOTE: Not all COSEWIC reports are currently available on the SARA Public Registry. Most of the reports not yet available are status reports for species assessed by COSEWIC prior to May 2002. Other COSEWIC reports not yet available may include those species assessed as Extinct, Data Deficient or Not at Risk. In the meantime, they are available on request from the COSEWIC Secretariat.

3 record(s) found.

COSEWIC Status Reports

Response Statements

  • Response Statement - Chinook Salmon, East Vancouver Island, Ocean, Summer population (2022-01-10)

    Mature fish in this population return in summer to spawn in the upper reaches of rivers draining the east side of Vancouver Island, from the Koksilah River in the south to the Puntledge River in the north. According to a consensus of expert opinion, fewer than 1000 wild spawners remain in this population. Exploitation rates are relatively high (about 40%), and marine survival estimates have been low for many years. Additional threats include ecosystem modifications (dam construction and channelization) and drought. The contribution of fish from hatcheries confounds the determination of population trends; hatchery-origin spawners may be a continued threat through direct competition and gene flow.

COSEWIC Annual Reports

  • COSEWIC Annual Report 2020 to 2021 (2021-10-12)

    Over the past year COSEWIC assessed a total of 66 wildlife species, of which 4 were assigned a status of Not at Risk. Of these 66, COSEWIC re-examined the status of 41 wildlife species; of these, 80% were reassessed at the same or lower level of risk. To date and with the submission of this report, COSEWIC’s assessments now include 826 wildlife species in various risk categories including 369 Endangered, 196 Threatened, 239 Special Concern, and 22 Extirpated (i.e. no longer found in the wild in Canada). In addition, 19 wildlife species have been assessed as Extinct, 62 wildlife species have been designated as Data Deficient, and 202 have been assessed as Not at Risk.
Date modified: