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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />SITE 9 (RM 297.2) <br /> <br />Site 9 was a long downstream chute channel located against the shore below the Jensen Bridge (RM <br />297.2). This backwater had an area of 1,220 m2 and a maximum depth of 4.0 ft. By February 1, much of <br />the shallow regions (< 0.5 ft) had frozen solid, reducing the area of suitable habitat to 610 m2. On <br />February 22 similar ice conditions existed, however dissolved oxygen concentrations in the back third of <br />the backwater were below 3.0 mgll (range 1.4 to 2.9 mg/l). The combination of free water loss due to ice <br />formation and habitat exclusion from low D.O. levels reduced useable habitat to approximately 500 m2. <br />Even with wintertime reduction in habitat of more than 50 percent this area was still sufficiently large to <br />shelter fish during the winter. <br /> <br /> <br /> <br /> ~ -... <br />i 20 feet <br />o....-o.-.J <br />A 200 foot baseline B <br /> <br /> <br /> <br />Bathymetric map of Site 9 (RM 297.2), showing waters edge and 1 ft contour lines. <br /> <br /> <br /> <br />Photographs of Site 9 (RM 297.2) taken September 1993 (top) and February 1994 (bottom). <br />