A 
Fig. 9 . (A) Cumulative combined upstream diversions of the Sacramento- 
San Joaquin river systems (1 967/69-1977/78). First data point is sum of 
diversions from 1955-1967. (B) Annual gross upstream diversions of the 
Sacramento-San Joaquin river systems (1967-1978). (C) Annual release of 
yearling chinook salmon juveniles from California State hatcheries (1970- 
1981). (D) Five-year running mean of winter-run spawning salmon past 
the Red Bluff diversion dam (1967/71 -1 980/84). 
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