experienced much higher fishing pressure than the lower sections, which may have important 

 management implications. 



The economic and ecological impacts of whirling disease affect both anglers and non-anglers 

 within the Montana community. The Madison generates a significant amount of income for the 

 surrounding area, and for the state. This report provides a thorough examination of how whirling 

 disease has affected the Madison River fishery in terms of angler perceptions and trout 

 population trends using existing data. 



Evaluation of 1995 and 1996 Creel Data and its Implications related to Whirling Disease 

 In the Madison River, Montana 



Montana Fish, Wildlife and Pailcs 

 March 12, 2002 



