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Global expansion of aquaculture and agriculture facilitates disease emergence and catalyzes transmission to sympatric wildlife populations. The health of wild salmon stocks critically concerns Indigenous peoples, commercial and recreational fishers, and the general public. Despite potential impact of viral pathogens such as Piscine orthoreovirus-1 (PRV-1) on endangered wild salmon populations, their epidemiology in wild fish populations remains obscure, as does the role of aquaculture in global and local spread. Our phylogeographic analyses of PRV-1 suggest that development of Atlantic salmon aquaculture facilitated spread from Europe to the North and South East Pacific. Phylogenetic analysis and reverse transcription polymerase chain reaction surveillance further illuminate the circumstances of emergence of PRV-1 in the North East Pacific and provide strong evidence for Atlantic salmon aquaculture as a source of infection in wild Pacific salmon. PRV-1 is now an important infectious ag
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Support for Wild Sockeye Salmon Management
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Genomic tools offer insight for an iconic species
VANCOUVER, BC, Feb. 10, 2021 /CNW/ - Sockeye salmon are a significant part of the cultural, social, and economic fabric of British Columbia (BC). Responsible stewardship of wild sockeye salmon fisheries is becoming increasingly important as human pressures and environmental changes intensify.
Salmon spawning in the Babine River. Photo Credit: Freshwaters Illustrated (CNW Group/Genome British Columbia)
One of the key challenges in sustainable salmon management is the ability to identify and protect at risk populations within a mixed stock fishery. BC s sockeye fisheries are composed of fish from potentially hundreds of different populations, each with unique life histories, genetic makeup, and levels of productivity (population growth). Current methods for monitoring and protecting less productive, and therefore at risk, salmon populations would benef