Passage through submersible and Archimedes pumps results in decreased migration survival in coho salmon yearlings
Stephanie A. Lingard, Hollis Kinnard, Andrew G. Lotto, Kamil Szlachta, Erika J. Eliason, Enda Murphy, Daniel Straker, Eduardo Guimarães Martins, Scott G. Hinch
This study evaluates the survival and behavior of coho salmon yearlings passing through two types of flood-control pumps, finding that while open-Archimedes pumps improve survival compared to conventional radial pumps, they still cause significant latent mortality.
bioRxiv · Sep 17, 2026 · PreprintEcology