APPENDIX A. 



Field Definitions 



Channel type (from Carlson 1990) 



Meander Stream channel is located in a flat -bottomed 

 valley with deep pools separated by shallow 

 riffles. The channel appears to shift 

 slightly during each peak flow period. 



Braided Stream channel is located in a flat-bottomed 

 valley with shallow channels and islands. 

 The channel may shift slightly during each 

 peak flow period. 



Canyon Stream channel is structurally controlled by 

 a "V" shaped valley. Rapids and runs 

 characterize the stream flow. Virtually no 

 movement of the channel occurs during peak 

 flow periods. 



Channel Stream channel is artificially straightened 

 by human activities. 



Human Proximity 



Near: 50 meters or more from a maintained trail 

 Adjacent: Less than 50 meters from a maintained 

 trail . 



Logjam 



Two or more trees 7 meters or longer protruding into 

 the main flow of the stream but not 100% submerged. 



Mid-Stream Loafing Site 



An island of rock, wood, sand or gravel at least 30 

 square centimeters in area and isolated by a 3 -meter 

 buffer of water. 



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