Greenpeace seeks to protect Alaska underwater canyons-Commercial fishermen are watching closely.

Bay Area conservationists are back from a dramatic deep sea expedition to research and protect huge underwater canyons in Alaska. The area is the heart of the state’s $1 billion-a-year fishing industry and the canyons may be a vital link in the lifecycle of fish that you eat. http://abclocal.go.com/kgo/story?section=news/assignment_7&id=8894604