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The principal fishery in the upper Green River <br />was trout and was valued at $12,180 per mile. <br />Harvest was by both residents and nonresidents <br />and average 0.72 fisherman per mile per day. <br />Moose, antelope, sheep, deer, and elk were <br />harvested by hunters. Harvest in the Green <br />River Basin comprised 28% of the moose, 4% of <br />the antelope, 11% of the mountain sheep, 8% of <br />the elk, and 4% of the deer harvested within <br />the state. Reservoir development was concluded <br />to pose positive impacts for aquatic organisms <br />but would have a significant negative impact on <br />stream fisheries. Negative impacts-were forseen <br />for game animals. <br />57. Binns, N. A. 1976. Colorado river cutthroat ENDANG. FISH <br />trout--slowing the slide to extinction. MANAGEMENT <br />Proceedings Western Association State Game HABITAT ALT. <br />and Fish Commissioners 56:282-283. GREEN R. <br />5 <br />The Colorado River cutthroat trout (Salmo <br />clarki pleuriticus) is the native trout of <br />Wyoming's Green River drainage. Hybridization <br />and competition with introduced rainbow trout <br />and other cutthroat trout strains, as well as <br />habitat changes associated with man's timbering, <br />livestock, irrigation and oil operations, have <br />eliminated this trout to a handful of streams. <br />A variety of measures have been used to aid <br />this trout. Stocks in several streams have <br />been isolated by fish barriers, limiting <br />hybridization of exotic trout. Habitat improve- <br />ment, and transplants are being planned. <br />Although not presently endangered to the extent <br />of warranting placement on the threatened or <br />rare and endangered species list, its situation <br />is precarious. <br />58. Binns, N. A. 1977. Evaluation of trout habitat <br />that would be impacted by Cheyenne's <br />proposed Phase II water development in the <br />North Fork Little Snake drainage. Wyoming <br />Game and Fish Department, Fish Division, <br />Administrative Report. Project No. 5076- <br />09-6002. 21 pp. <br />To assess probable impact of a proposed trans- <br />basin water diversion from the North Fork <br />Little Snake River drainage on stocks of <br />WATER DIV. <br />HABITAT <br />FLOW <br />ENDANG. FISH <br />5 <br />33 <br />