WEST THUMB DOCK 

 Rowboats s 



This dock is located on the west shore of West Thumb, and is consid- 

 erably more isolated from the tourist centers than is Fishing Bridge dock. 

 About 35 rowboats were available for rent at West Thumb dock during each 

 of the seasons of 1950 and 1951. The census was conducted here in the same 

 manner and pattern as was that for Fishing Bridge dockj that is^ every 

 other day during the 1950 season, and four times each 2-week period during 

 the 1951 season. 



The resulting data for the two years are summarized in table 7« 



A graph of the rates of effort and catch-per=unit=effort for 1950 

 and 1951 (fig. 6) are similar to those of Fishing Bridge dock in that they 

 also are nearly equal for the two years. The "t" test was applied to the 

 grand means of the biweekly means of 1950 and 1951 i'or both the rate of 

 effort and catch=per=unit-effort (table 8). Neither rate showed signif= 

 leant differences between years. Again^ increase in catch is apparently 

 directly related to the increase in niimber of fishermen and fishing 

 effort (figs. 7 and 8), As at Fishing Bridge, this unit of the fishery 

 does not indicate any change in the number of fish available to the fish- 

 ermen utilizing the rental boat facilities at West Thumb dock. 



Table 8 



"t" test of catch-per-unit=effort and 

 effort, rowboat fishery. West Thumb dock, 1950 and 1951 



Effort 

 1950 1951 



2.7U 2.I1O 



2.92 2.38 



3.21 2.75 



3.06 2.91 



3.13 3.12 



3.01 3.01 



2.38 2.79 



2.9211i 2.7657 



7 7 



1.013 



12 



lit 



