United States Department of the Interior, Oscar L. Chapman, Secretary 

 Fish and f/ildlife Service, Albert M. Day, Director 



YELLOWSTONE LAKE TROUT CREEL CENSUSES, 19^0-51 



by 



Harvey L. Moore and Oliver B. Cope 

 Fishery Research Biologists 

 and 

 Richard E. Beckwith 

 Analytical Statistician 

 U. S. Fish and Wildlife Service^ 



Special Scientific Report: Fisheries No. 81 



CONTENTS 



Page 



Fishing pattern ..... . 2 



Census method .......... ,o ..... |j 



Fishing Bridge Dock ........... 5 



West Thumb Dock <..,..........,..... 11^ 



Fishing Bridge ,.....,.....,,.,.,.. 18 



Lake shore census .......... . ip 



Private boat fishery ................ 23 



Yellowstone River ................ 2? 



Conclusion .............. 29 



Mathematical derivation of creel census estimates |2 



