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Additional Information

Competing Interests

Charmaine Carr-Harris and Allen S. Gottesfeld are employed by the Skeena Fisheries Commission.

Author Contributions

Charmaine N Carr-Harris conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Allen S. Gottesfeld conceived and designed the experiments, performed the experiments, wrote the paper, reviewed drafts of the paper.

Jonathan Moore conceived and designed the experiments, performed the experiments, wrote the paper, reviewed drafts of the paper.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Fish sampling activities were approved by Simon Fraser University’s Animal Care Committee, permit #1007B-11.

Field Study Permissions

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

All fish sampling activities were conducted under a license to fish for scientific, experimental or education purposes issued by Fisheries and Oceans Canada, license XR 76 2013.

Funding

Financial support for this project was provided by Lax Kw’alaams Fisheries Program, the Liber Ero Foundation, Simon Fraser University, Mitacs, and SkeenaWild Conservation Trust. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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