W5: Are fish farms pushing salmon towards extinction?

Farmed Atlantic salmon is big business in B.C., but the science on whether or not fish farms on the B.C. coast are a threat to the local wild Pacific salmon population is still murky. CTV's Peter Akman wades into the controversy. Subscribe to W5 to watch more videos:    / @officialw5   Connect with W5: For the latest investigations visit: http://www.ctvnews.ca/w5/ For a full video offering visit the CTV News Network: http://www.ctvnews.ca/video?binId=1.8... W5 on Facebook:   / ctvw5   W5 on Twitter:   / ctvw5   --- W5 is Canada’s most-watched investigative, current affairs and documentary program. Tackling major stories and investigations W5 is in its 51st season.