B.C. Salmon Farms Hit by Frequent Disease Outbreaks, Threatening Wild Salmon, New Study Finds

A new study with unprecedented access to Atlantic salmon farms in British Columbia reveals frequent disease outbreaks that pose a serious risk to wild salmon populations. The research, which analyzed data from farms across the province, found recurring viral and bacterial infections, including piscine orthoreovirus (PRV) and Tenacibaculum maritimum, among farmed fish. These pathogens can spread to wild salmon migrating near the farms, potentially reducing their survival and reproductive success. The findings raise urgent questions about the federal government's regulation of the aquaculture industry, which has long been criticized for inadequate disease monitoring and reporting. With wild Pacific salmon already facing habitat loss and climate change, the added pressure from farm-origin diseases could push some populations closer to extinction. The study underscores the need for stronger biosecurity measures and transparent data sharing to protect both farmed and wild salmon. Moving forward, policymakers must weigh the economic benefits of salmon farming against the ecological costs to B.C.'s iconic wild salmon runs.