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<br />Table 4. Green River estimated spawning period and associated water discharge <br />discharge and temperature ranges at Green River, Utah guage, RK 194 <br />(RM 120). <br /> <br />Date <br /> <br />Discharge (cfs) <br /> <br />Temperature (CO) <br /> <br />20 Jun - 15 Jul 1981 <br />25 Jun - 5 Aug 1982 <br />15 Jul - 25 Aug 1983 <br />15 Jul - 20 Aug 1984 <br /> <br />2270-4600 <br />4650-15600 <br />7810-22000 <br />7240-13500 <br /> <br />23.0-26.0 <br />19.5-27.5 <br />20.0-25.0 <br />20.5-23.0 <br /> <br />a <br />Once daily records. <br /> <br />Table 5. Colorado River estimated spawning period and associated water <br />discharge and temperature ranges at Black Rocks gauge, RK 572 <br />(RM 354). <br /> <br />Date <br /> <br />Mean Daily <br />Discharge (cfs) <br /> <br />Mean Daily <br />Temperature (CO) <br /> <br />5 Jul - 10 Aug 1982 <br />21 Jul - 20 Sept 1983 <br />18 Jul - 15 Sept 1984 <br /> <br />4500-13800 <br />4240-15800 <br />6000-14000 <br /> <br />15.0-25.0 <br />17.5-24.5 <br />17.0-22.0 <br /> <br />22 <br />