Salmon make one of the world's great migrations, but maybe not for much longer. Heath Druzin reveals how a bitter fight over a fish is playing out in America's Pacific Northwest. Show more
Discover 11,128,835 listings and 280,057 playable programmes from the BBC
Salmon make one of the world's great migrations, but maybe not for much longer. Heath Druzin reveals how a bitter fight over a fish is playing out in America's Pacific Northwest. Show more