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<br />TABLE 3
<br />
<br />Annual mean discharge and water quality, Green River at Greendale and
<br />lensen, Utah, 1947 to 1966 (compiled from USGS data)
<br />
<br /> Mean Total co~a:~~ce Suspended
<br /> Water discharge I1eO, dissol ved sediment
<br /> year- (ds) (ppm) solids (ppm) (micromhos) pH (ppm)
<br /> Greendale
<br /> 1956--57 2,877 197 476 705 7,5
<br /> 1957-58 2,430 173 404 624 7.9
<br /> 1958-59 1,576 169 439 662 7,9
<br /> 1959-60 1,375 190 473 716 7,9
<br /> 196~1 1,032 191 540 784 8,0
<br /> 1961~2 2,919 192 447 685 7,7
<br />.. Flaming Gorge Darn closed
<br />. 1962--63 231 215 653 951 7,8
<br /> 1963~4- 1,555 193 465 695 7,7
<br /> 196 '1--65 2,227 194 551 769 7.8
<br /> - 1965~6 1,633 182 536 786 7.9
<br />;
<br /> I ensen
<br /> 1947-48 4,215 176 399 617 7,9
<br /> 1948-49 4,708 191 457 709 7,9 1,930
<br /> 1949-50 5,659 196 479 741 7,6 1,950
<br /> 1950-51 5,073 186 425 ,,&40 7.7 1,220
<br /> 1951-52 6,230 187 471 700 7,7 2,430
<br /> 1961~2 6,016 164 333 522 7.7 1,620
<br /> Flaming Gorge Darn closed
<br /> 1962--63 1,458 175 526 758 7,6 756
<br /> 1963-64- 2,825 185 408 612 7.7 828
<br /> 1964-65 4',797 164 371 552 7.6 1,190
<br /> 1965-66 3,214 165 413 615 7.7 703
<br />. . A water year runs from October 1 through September 30 of the following year.
<br />
<br />dam, mean sediment concentration was 870 ppm (range: 703-1,190
<br />ppm; Table 3).
<br />Turbidity was measured at each fish collection station and was
<br />lowest at Little Hole (less than 25 Jackson Turbidity Units), Highest
<br />values were found at Island Park (up to 5,000 JTU) .
<br />
<br />FISH DISTRIBUTION-POST IMPOUNDMENT (1963-1966).
<br />The species composition and relative abundance of fish populations at
<br />seven sampling stations between Flaming Gorge Dam and the mouth
<br />of the White River were described in the present study (Table 4).
<br />Relative abundance of each species was arbitrarily classified as "rare",ca:aS fOf)ql
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