Benthic Macroinvertebrates - qualitative estimate of zoobenthos density on rocks 

 (diameter ranging from 10 to 20 cm) pulled from the water; low (less than 10 

 organisms) , moderate (20 to 40 organisms), or high (50 or more organisms). 



water temperature - temperature at sample site (°F). 



Reproduction - evidence of sculpin reproduction based on presence (yes) or absence 

 (no) of young of the year sculpins. 



Discharge - an estimate of the flow at the sample site. 



Vertical Cover - percentage of vegetation, overhanging bank, and woody debris directly 

 over stream surface at a height not greater than 6 feet. 



Trout - present (yes) or not present (no). 



Land Use Present - visual assessment indicating presence (yes) or absence (no) of land 

 use categories in drainage, i.e., undisturbed, grazing, logging, roads, mining, 

 urbanization, channelization. 



