Global Synthesis Of Peer-Reviewed Research On Hatchery Impacts On Wild Salmonids (206 Papers, 1970-2021) Says 80 Percent Show Adverse Impacts

For over a century, fish hatcheries across the world have produced salmonids to supply fisheries, mitigate habitat loss and boost depleted stocks. A newly published review of scientific literature examining the impacts of these programs on wild (i.e., naturally produced) salmonids shows that over 80 percent of global, peer-reviewed research on the topic has found that hatchery fish have adverse effects on wild salmonid populations in freshwater and marine environments.

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