TABLE 12. — Daily temperature, stream flow and fish count data. Rock Island Dam, September 1959 



^ Ave. of morning and afternoon surface temp, taken with pocket thermometer and given in degrees 

 Fahrenheit . 



^ Start of single shift counting. 



TABLE 13. --Monthly totals of all anadromous fish counted at 

 Rock Island Dam, 1959 



TABLE 14.. --Number and percent of steelhead counted 

 over each fish ladder. Rock Island Dam, 1959 



