2,000-Year-Old Salmon DNA Reveals Secret to Sustainable Fisheries

Genomic analysis of ancient chum salmon bones and cultural knowledge from the Tsleil-Waututh Nation suggest that people in the Pacific Northwest managed fisheries for thousands of years by harvesting males and releasing females.

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A team of scientists partnering with the Tsleil-Waututh Nation, one of the Coast Salish peoples that have inhabited the northwest coast of North America for millennia, has uncovered how local Indigenous communities managed salmon fisheries for thousands of years without exhausting them. Based on ethnographic surveys and genetic data from ancient remains: the key was that fishers harvested mostly males, the researchers report November 10 in Scientific Reports.

“Without the DNA stuff, we wouldn’t be able to trace the history of this Indigenous practice,” says Simon Fraser University archaeologist and lead study author Thomas Royle. “And without the Indigenous knowledge, if we just discovered a bunch of male salmon, we wouldn’t have known what happened.”

“These types of collaborations are the future of ecological studies and require an investment of time and an openness to new ways of seeing the world around us,” Lia Chalifour, a salmon ecology and conservation ...

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  • black and white image of young man in sunglasses with trees in background

    Dan Robitzski

    Dan is a News Editor at The Scientist. He writes and edits for the news desk and oversees the “The Literature” and “Modus Operandi” sections of the monthly TS Digest and quarterly print magazine. He has a background in neuroscience and earned his master's in science journalism at New York University.
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