parameter between rivers. This analysis grouped similar sites and similar 

 responses (increase or decrease) by biological parameters. 



All data were thoroughly reviewed to identify any correlations between 

 Physical Site Characteristics, Gravel Removal Area Characteristics, degree 

 of change by the terrestrial biota, and short-term and long-term recovery 

 rates. The following sections include the results of data collection and 

 analysis. 



221 



