The monthly catch pattern for king salmon followed closely the 

 movements and activities of the salmon in the Upper Sacramento River 

 area durinp; the 1948-49 season. As shown in Table 4, the catch 

 inorersed from May to June as the spring run gained force and 

 decreased somewhat in July as the migration subsided and most salmon 

 were resting in deeper holes awaiting spavming maturity. The catch 

 increased again in August as the spring-run salmon started their 

 pre-spawning migrations, and continued to increase in September as 

 the fall migrants started to enter the fishery. A peak catch in 

 October coincided with the peak of the fall migration. The catch 

 dropped sharply in November as migrant salmon became less common, 

 most of the fishing being done on spawning riffles. A small number 

 of salmon was taken in December when nearly all fishing was on salmon 

 spawning areas near Redding. A sizeable winter run appeared in 1949 

 and the salm.on catch presumably increased in January and February in 

 proportion with the number of migrating salmon. These winter-run king 

 salmon also enter the catch in May, June and early July of the following 

 fishing season, when they are caught on their spawning areas. 



For the period from September 1 through December the king salmon 

 sports catch increased from some 3,300 in 1947 to 4,900 in 1948. 

 Estimates of the spawning populations of salmon for these years were 

 constant or slightly smaller in 1948. An increase in the bag limit 

 from two salmon in 1947 to three salmon in 1948 may have contributed 

 somewhat to the increased catch in 1948, although the number of limit 

 catches was not great in either year. The increased catch can more 

 likely be attributed to the greater use of boats in 1948; three boat 

 liveries were in operation in 1947 and eight in 1948, With the in- 

 creased use of boats, the area from which salmon were taken became 

 less restricted and a larger catch resulted. 



The number of fishing efforts for king salmon followed closely 

 the catch pattern, and only one exception was found during the period 

 of this study. This occurred in September, 1948, v/hen the number of 

 fishing efforts fell to some 6,100 from 6,550 in August and the catch 

 increased to about 1,050 from 980 in August. This reversal of the 

 usual trend resulted from a slight increase in the length of the fish- 

 ing effort and catch per hour which more than offset the reduction in 

 fishing efforts. In general, however, it can be said that the number 

 of fishing efforts for salmon varied directly with the number and 

 availability of the salmon. 



The nximber of fishing efforts for salmon decreased from some 

 2 3,400 in 1947 to 21,800 in 1948 for the period of September through 

 December, even though the catch increased in the lattrr vear. The 

 decrease in the number of fishing efforts can be attributed to: 

 (1) the concentrated fishing and greater use of boats in the lower 

 river area with the resultant lessened availability of salmon in 

 the upper river; (2) the closure of tl-iree county bridges to fishing; 

 and (3) the change in the spawning pattern of salmon during the latter 

 season vjhen the most intense spawning was near the middle, rather than 

 the upper end, of the spawning area. 



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