Prolonged drought behind fish kill on Cowichan River: DFO delta-optimist.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from delta-optimist.com Daily Mail and Mail on Sunday newspapers.
Hundreds of dead salmon and trout were discovered in the Cowichan River in mid-July, and now Fisheries and Oceans Canada says the cause of death was likely lesions caused by environmental stress. Warm water and low oxygen levels can make fish more likely to succumb to infection.