Conservationists restoring salmon along California’s North Coast have a mantra: A good coho salmon stream looks like a teenager’s bedroom—if teenagers discarded logs and branches instead of dirty clothes. … The first attempts to restore Mendocino’s streams for coho and other salmon began in the 1960s. Decades of logging in the area’s old-growth forests left woody debris in stream channels, creating miles-long barriers. Well-intentioned state conservationists decided to remove it. … Gradually, researchers realized that salmon needed the shelter provided by logjams. 

Other salmon restoration news:

• Los Angeles Times: Opinion: Klamath farmers are looking for ‘balance and stability’ in law implementation​