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<br /> <br />. <br /> <br />South Fork to Rio Grande Canal <br /> <br /> <br />330 Shifts in the summer and fall flows will not signifioantly <br /> <br /> <br />affeot trout habitat from the South Fork to the Rio Grande Canal, a <br /> <br /> <br />17~ile distanoe. Likewise, reduotion of mean flows by one-third in <br /> <br /> <br />winter will not be partioularly hannful to trout habitat but lowered <br /> <br /> <br />minimum flows. on the other hand. will reduoe the amount of trout <br /> <br /> <br />food produoed, A large part of the ohannel will be oompletely de- <br /> <br /> <br />watered frequently whenever streamflow falls below 84 seoond-feet. <br /> <br /> <br />This pattern of flow, inundating and then exposing large areas of <br /> <br /> <br />streambed. will be destruot! ve to bottan dwelling organisms, important <br /> <br /> <br />as fish food, However. when oompared to oondi tions on upstream reaohes. <br /> <br /> <br />winter habitat in this part of the Rio Grande will be relatively <br /> <br /> <br />favorable as a result of South Fork inflows. <br /> <br /> <br />Rio Grande Canal to Monte Vista <br /> <br /> <br />34. The streamflow in this 15-mile reaoh of the river fran <br /> <br /> <br />the Rio Grande Canal near Del Norte to Monte Vista will be a oanposite <br /> <br /> <br />of the routed flows at Del Norte and Alamosao Late summer flows will <br /> <br /> <br />be inoreased to provide water for downstream diversions but in winter <br /> <br /> <br />both the minilnum and mean flows will be reduoed, These lowered flows. <br /> <br /> <br />whioh will impair habitat by exposing the ohannel bottom to de- <br /> <br /> <br />hydration. will outweigh the favorable late summer flows, <br /> <br /> <br />Monte Vista to Alamosa <br /> <br /> <br />350 Flows along the 30 miles from Monte Vista to Alamosa. like <br /> <br /> <br />the previous reaoh. will be a oomposi te of the routed flows a t the <br /> <br /> <br />same gaging stations but will more nearly approaoh the Alamosa flows, <br /> <br /> <br />In the upper half of the stretoh. the water neoessary for supplying <br /> <br />, <br /> <br />17 <br /> <br />1171 <br /> <br />