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<br />OOGG <br /> <br />CONTENTS-Continued <br /> <br />5 <br />6 <br />7 <br /> <br />Price current meter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Surber sampler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Range of flows at each river station from March 1979 <br />through September 1980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean and standard deviation of cadmium concentrations at all <br />stations during the study period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean and standard deviation of copper concentrations at all <br />stations during the study period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean and standard deviation of iron concentrations at all <br />stations during the study period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean and standard deviation of lead concentrations at all <br />stations during the study period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean and standard deviation of manganese concentrations <br />at all stations during the study period ........................... <br />Mean and standard deviation of zinc concentrations at all <br />stations during the study period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean concentrations of cadmium at all river stations during <br />high and low flows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean concentrations of copper at all river stations during high <br />and low flows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean concentrations of iron at all river stations during high <br />and low flows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean concentrations of lead at all river stations during high <br /> <br />and low flows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean concentrations of manganese at all river stations during <br />high and low flows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean concentrations of zinc at all river stations during high <br /> <br />and low flows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />Mean diversity indices for aquatic macroinvertebrates at <br />all river stations from April 1979 to September 1980 ............... <br />The mean heavy metal content in brown trout livers collected at <br />selected stations by electrofishing on October 2, 1979. . . . . . . . . . . . . . . <br /> <br />8 <br /> <br />9 <br /> <br />10 <br /> <br />11 <br /> <br />12 <br /> <br />13 <br /> <br />14 <br /> <br />15 <br /> <br />16 <br /> <br />17 <br /> <br />18 <br /> <br />19 <br /> <br />20 <br /> <br />21 <br /> <br />v <br /> <br />Page <br /> <br />17 <br />18 <br /> <br />26 <br /> <br />26 <br /> <br />27 <br /> <br />27 <br /> <br />28 <br /> <br />28 <br /> <br />29 <br /> <br />29 <br /> <br />30 <br /> <br />30 <br /> <br />30 <br /> <br />31 <br /> <br />31 <br /> <br />32 <br /> <br />32 <br />