Increasing adult mortality in Puget Sound herring may contribute to population declines

Young adult herring from Puget Sound.Margaret Siple/University of Washington

Young adult herring from Puget Sound.Margaret Siple/University of Washington

PSI’s lead ecosystem ecologist Tessa Francis is co-author of a 2017 paper linking increasing adult mortality of Puget Sound herring with regional population declines in the species. The authors report that natural mortality among herring four years and older has doubled in Puget Sound since 1973, suggesting a possible connection to declines at spawning sites near Cherry Point and Squaxin Pass.

The article is published in the ICES Journal of Marine Science and is co-authored by Margaret Siple (lead author) of the School of Aquatic and Fishery Sciences at the University of Washington (UW SAFS), Andrew Shelton of NOAA Fisheries, Tessa Francis of PSI, Dayv Lowry and Adam Lindquist of the Washington Department of Fish and Wildlife, and Tim Essington of UW SAFS.

Citation:

Margaret C. Siple, Andrew O. Shelton, Tessa B. Francis, Dayv Lowry, Adam P. Lindquist, Timothy E. Essington; Contributions of adult mortality to declines of Puget Sound Pacific herring, ICES Journal of Marine Science, , fsx094, https://doi.org/10.1093/icesjms/fsx094

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