listed and therefore can be considered as slightly below average in 

 this respect. On the other hand, the Madison River was surpassed by 

 only two other areas in fishing success in terms of pounds of fish 

 per hour and in this respect is considerably above average. 



When comparing rates of catch on lakes and reservoirs in 

 the study area with those of other lakes and reservoirs in the Rocky 

 Mountain region (Table lU) > the reservoirs in the study area fall 

 midway in the list of reservoirs in respect to numbers of fish per 

 hour and therefore may be considered average,, Although two of the 

 listed reservoirs have rates of catch in pounds of fish equal to 

 Hebgen Reservoir (0 o 30 pounds per hour) the two reservoirs are not 

 surpassed in this respect by a single other one of the other bodies 

 of water listed. 



Comparisons of fishing pressure and yield of the Madison 

 River with a variety of other trout streams would be desirable. Un- 

 fortunately, the only streams on which comparable studies have been 

 made are the West Gallatin and North Fork Sun Rivers in Montana,, 

 Fishing and yield determined for a 28-mile stretch of the West Gallatin 

 in 1900 was U60 fisherman-days and 580 fish or UOO pounds of fish per 

 mile (Fish and Wildlife Service 195la); that for 8 miles of the North 

 Fork Sun River, which could be considered to have access comparable 

 to the Madison and West Gallatin, was 253 fisherman-days and h?6 fish 

 or 13h pounds of fish per mile in 1951 (Fish and Wildlife Service 

 1953d) . 



Considering the 98 miles of the Madison River covered in 

 this study, pressure and yield per mile was 231 fisherman-days and 

 535 fish or U9I4 pounds of fish. Although these values are not parti- 

 cularly outstanding when compared to those of the foregoing streams, 

 greater potentialities are suggested for the river as a whole when 

 comparisons are made with certain check areas (Table 7)° For example, 

 in the 5-mile Channel Area, where pressure was 539 fisherman -days per 

 mile, yield was 1,772 fish weighing 1,U87 pounds. In the 11-mile 

 Upper Bear Trap Canyon Area the yield was l,21l4 fish weighing 1,208 

 pounds, with a pressure of U52 fisherman=days per mile. In spite of 

 the fact that the biological and physical conditions might have been 

 such that certain portions of the stream were more productive than 

 others, it still remains that were all portions equally accessible, 

 (i„e , from the point of view of both road network and posting against 

 trespass) the Madison River could stand considerable more pressure and 

 continue to yield high returns to the fishermen „ 



Results of expenditure studies similar to those described 

 in this report have been analyzed for a number of other cold-water 

 fisheries. Results o f these studies are shown comparatively in Tables 

 15 and 16 „ There is considerable variation in the expenditure items 

 listed in Table 15» As has been shown in the cited references and 



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