Antioxidants in salmon’s diet give the fish their distinctive colour, but internet rumours proliferate about how farmed salmon achieve the same colour.
The industry says the deterrent is necessary, but evidence suggests the devices pose a significant threat to some marine life, including maiming and killing seals.
Scientists have been trying to pinpoint the exact causes of the declines in some wild Pacific salmon populations for decades.
(Amy Romer)
A study of viral variants finds Piscine orthoreovirus continuously spills over from farmed salmon to wild salmon.
Fishing boat captains jockey for position near the mouth of the Naknek River, which flows into Bristol Bay.
Luis Sinco/Los Angeles Times via Getty Images
Kevin Berry, University of Alaska Anchorage and Brett Watson, University of Alaska Anchorage
The harvesters of the historic wild salmon run out of Bristol Bay, Alaska, were already facing tough competition from relatively cheap and plentiful farmed salmon. Then came the pandemic.