Aquaculture of salmon

Farm fed or wild? Transgenic or unmodified? “Four Fish” author Paul Greenberg says that though the government may approve AquaBounty’s genetically modified salmon, it is failing to protect the environment for wild salmon stocks.

Don Genova reports the controversy over salmon raised in ocean pens in British Columbia has grown beyond environmentalists and Native tribes to researchers and, now, consumers. Restaurants are changing their menus and the debate is spreading south into the United States.

Many critics of ocean fish pens continue to raise concerns about pollution from fish waste, disease, and fish escapes. But the public is eating more farmed fish than ever and British Columbia is set to lift a seven year ban on new fish farms. Cheryl Colopy reports.