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Two pathogens linked to salmon well being and survival in British Columbia

Credit score: Drew Farwell/Unsplash

Many wild salmon populations in British Columbia (B.C.) have skilled substantial declines during the last three a long time. New UBC analysis revealed in FACETS helps chart a course in direction of higher safety of untamed salmon.

The examine, led by UBC college of forestry member Arthur Bass and utilizing information generated by the Strategic Salmon Well being Initiative, assessed dozens of pathogens in 1000’s of Chinook and Coho salmon sampled over a decade alongside the B.C. coast.

For the primary time ever, researchers have been capable of determine the pathogens most intently linked to survival of free-ranging Pacific salmon within the ocean: Tenacibaculum maritimum, a bacterium that causes ulcerative illness in salmon and different cultured marine fish worldwide; and piscine orthoreovirus (PRV), a virus that causes illness in Pacific and Atlantic salmon worldwide, however whose affect on salmon in B.C. is vigorously debated.

“This is the first empirical evidence that PRV is negatively impacting wild Pacific salmon in B.C.,” says Dr. Bass, a postdoctoral researcher at UBC’s Pacific Salmon Ecology Conservation Lab. “These two pathogens are common on salmon farms in B.C., and recent studies provide evidence of transmission from farms to wild salmon.”

“Many studies show that high ocean temperatures impact salmon survival, but this new research shows that in some cases pathogen presence can be more important,” notes the examine senior writer Kristin Miller-Saunders, a molecular genetics scientist with Fisheries and Oceans Canada (DFO) and an adjunct professor of fisheries at UBC.

Wild Pacific salmon catches down 80%, according to Indigenous elders

Extra data:
Arthur L. Bass et al, Identification of infectious brokers in early marine Chinook and Coho salmon related to cohort survival, FACETS (2022). DOI: 10.1139/facets-2021-0102

Two pathogens linked to salmon well being and survival in British Columbia (2022, Might 19)
retrieved 19 Might 2022

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Hirak Deb Nath
Hi, I am Hirak Deb Nath. I am working as an Associate Data Analyst and Web Developer at Accenture in the Artificial Intelligence Team. I have 1.5 years of experience in Full Stack Web Development in React and 5 years of experience in Digital Marketing. I run various Blogs and E-commerce businesses in different Categories. I am a News and Media, Business, Finance, Tech, Artificial Intelligence, Cloud Computing, and Data Science Enthusiast. Additionally, I know Java, C, C++, Python, Django, Machine Learning Android Development, SEO, SMM, Figma, Shopify, and WordPress customization.

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