Salmon Watersheds Program

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New research published in the Canadian Journal of Fisheries and Aquatic Sciences

October 22, 2020

New research has been published in the Canadian Journal of Fisheries and Aquatic Sciences. This research was a collaborative endeavour between the Pacific Salmon Foundation’s (PSF) Salmon Watersheds Program, Fisheries and Oceans Canada Science staff, and post-doctoral researcher – Stephanie Peacock.

Together, we set out to better understand how incomplete and missing information on salmon affects the kinds of assessments of biological status undertaken by the PSF and visualized in the Pacific Salmon Explorer. In most circumstances, we found that biological status assessments are robust to missing information and that incomplete information had very little effect on the accuracy of status assessments. What did matter, however, was the accuracy of catch information. We found that misclassifications of status increased when catch was overestimated, highlighting the need to improve catch allocation to salmon Conservation Units (for example, through genetic stock identification).

This research suggests that status assessments are worthwhile even in the face of incomplete data. Full details on the paper and related findings can be found at: