STUDY NUMBER: 



2.6 



ORGANIZATION ; Montana Department of Fish Wildlife and Parks 

 ( MDFWP ) 



TITLE OF STUDY ; Middle Clark Fork River Tributaries Study 



CONTACT(S) ; Pat Graham - Montana Department of Fish, Wildlife 



and Parks, Helena - 444-5686 



Dennis Workman - Montana Department of Fish, Wild- 

 life and Parks, Missoula - 721-5808 



Rod Berg - Montana Department of Fish, Wildlife 

 and Parks, Missoula - 721-5808 



OBJECTIVE ; Determine the relative importance of tributaries 

 as existing or potential sources of recruitment for trout pop- 

 ulations of the middle Clark Fork River (between the Blackfoot 

 and Flathead Rivers). 



DURATION ; July 1984 - July 1986 



CURRENT STATUS : Fishery surveys are being conducted on all peren- 

 nial tributaries (approximately 25 streams) to determine their 

 potential importance for providing recruitment of rainbow, brown, 

 cutthroat and bull trout to the mainstera of the Clark Fork River. 

 Photographic stations have been established on several streams 

 to record habitat changes with different flow volumes. 



FUTURE ACTIVITIES ; Instream flow requirements for migrant and 

 resident fish will be determined. Factors which may be negatively 

 affecting the fishery (barriers which may hinder or block migrant 

 fish passage, water quality problems, etc.) will be assessed. 

 A management plan will be formulated to maintain and improve 

 the fishery values of tributary streams. A progress report on 

 these activities will be prepared in July of 1986. However, 

 to adequately meet the goals of this study, additional funding 

 will be needed to continue work for a least two additional years 

 beyond July, 1986. 



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