“Salmon Confidential,” a documentary about fish farming in British Columbia, is screening at 6 p.m. at the library Thursday, March 13.

The film is presented by Lynn Canal Conservation.

The documentary tells the story of biologist Alexandra Morton, who discovers wild salmon in British Columba are testing positive for European salmon viruses associated with fish farming.

Morton makes her way from courtrooms to remote British Columbia rivers to Vancouver grocery stores and sushi restaurants over…