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~_ During periods of lover flow (less than 1,500 cfs), several tempo- <br />rary backwaters are created. These backwaters were the ones sampled <br />this Pall for youngrof-the-year fisb. It appears creation of these <br />backwaters are ^ade possible at low floe because of the inf luence of <br />Lake Powell on the river inducing suspended solids to "fall out" of <br />suspension and creating an accumulation of sand oo the river bottom. <br />'this process occurs gradually over several months to forte an uneven <br />bottom profile that helps in creating backwater habitat. This process <br />is repeated annually. <br />Although eater quality measurements were limited to gathering <br />eater temperature information, a few general observations about water <br />quality conditions were made. The upstream drainage is highly erosive <br />and vas reflected in the high rate of sediment deposition. Conductiv- <br />ity of the water, as indicated by relative electrofishing efficiency, <br />varied considerbly, but overall appeared to stay high. In general, <br />poor water quality is a limiting factor to fish species composition. <br />Fisheries <br />Fish sampling in this section of river was accomplished primarily <br />by electrofishing sad seining although a few fish were collected by <br />entanglesent netting. A summary of the fish collected from <br />electrofishing from this section of river is presented below. <br />8 <br />