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The AKSSF program has funded around 1,000 projects since its inception in 2000. Use a key word search to find the projects that interest you, click on a marker in the map to learn more, or explore the filters to refine your search by region, year, objective, etc. (Please note that many of the projects funded prior to 2014 are no longer eligible for AKSSF funding.)

Estimating Escapement of Chilkat River Chinook Salmon Using Transgenerational Mark-Recapture

Synopsis:Chilkat River Chinook salmon have historically been a central stock for subsistence (including customary and traditional) harvest by residents of the Haines region in Southeast Alaska. Recent declines in productivity and failure to meet escapement goals have led to this population being listed as a “stock of management concern” by the State of Alaska and have curtailed subsistence harvest in recent years. This project will estimate escapement of Chilkat River Chinook salmon abundance by implementing an emerging method called “transgenerational mark-recapture” (tGMR) where marking and recapturing is accomplished via genotypic identification of spawners and their offspring. Simulations will be used to assess assumptions and mitigate for potential biases in tGMR, which will help guide future tGMR projects.
Project #:54018
Project Period:8/15/2021 - 12/31/2023
Location(s):Chilkat River
Cost:$149,508
Match:$52,328
Region:Southeast
Federal Fiscal Year:2020
Project Data:https://zenodo.org/records/10600838
Investigator(s)
NameRoleOrganization
Megan McPhee Principal Investigator University of Alaska Fairbanks
Kyle Shedd Co-Principal Investigator ADF&G, Division of Commercial Fisheries
Statement of Work AKSSF Reports
Semiannual Report 5/1/2021 - 10/31/2021 PDF
Semiannual Report 11/1/2021 - 4/30/2022 PDF
Semiannual Report 5/1/2022 - 10/31/2022 PDF
Semiannual Report 11/1/2022 - 4/30/2023 PDF
Completion ReportPDF
Optional Reports
TitleDescription
AKAFS presentation 3/28 These are slides from the presentation that Sam Rosenbaum gave at the annual meeting of the Alaska Chapter of the American Fisheries Society on 3/28/23 in Fairbanks
Presentation 8/22 Slides from Rosenbaum 2022 AFS presentation to accompany semi-annual report covering 5/1-10/31/2022
Reliability of trans-generational genetic mark-recapture (tGMR) for enumerating Pacific salmon Accepted at Evolutionary Applications and is in press, but not published yet; article DOI: 10.1111/eva.13647

For technical support, questions, or comments, please contact Debbie Maas at debbie.maas@alaska.gov.