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i 1 1 1 1 1 ANNOTATED BIBLIOGRAPHY Hunter G.N., and O.A. Parson. 1943. A Stream Census of the Fryingpan River, 1942-1943. Colorado Game and Fish Department. Fryingpan River This study provided an early description of the Fryingpan River and the existing fishery. The Fryingpan River at that time was fed by numerous tributaries, which were directly influenced by snowmelt. The amount of water removed for irrigation had no noticeable effects on trout populations. The average gradient was measured at 86 feet per mile. Pool and riffle habitat was abundant and river banks were generally open and accessible. Fish species included rainbow trout, brown trout, cutthroat trout, eastern brook trout, and sculpin. A wide range of biological data was reported in the results of this study. Researchers found approximately 300 pounds/mile of food available to trout in the form of aquatic macroinvertebrates. Ephemeroptera, Trichoptera, and Diptera made up the majority of the food organisms. The populations of aquatic food organisms did not seem to fluctuate throughout the year. Examination of stomach contents indicated that a lazge percentage of terrestrial organisms were consumed along with aquatic organisms. Numerous areas of cover for fish were observed in the form of cut banks, tree roots, brush, logjams, and slow moving sections of water. Water temperature ranged from 47 to 62 degrees F. Stream width was measured between 40 and 100 feet with an average of 65. Diatoms and algae were found throughout the stream. No dead or diseased trout were found. Several tributaries were suspected of providing good spawning azeas. Stocking Records were given for 1937 through 1941. Migration studies conducted in 1942 and 1943 showed an even division between upstream migration, downstream migration, and no migration. Hoppe, RA. and L.M. Finnell. 1970. Aquatic Studies on Fryingpan River, Colorado -1969-1970. Colorado Division of Wildlife. Fort Collins, Colorado. Fryingpan River The purpose of this study was to make recommendations for improving the conditions for spawning of rainbow trout and brown trout in the Fryingpan River. Studies performed in the winter of 1969-1970 included thermographs, surveys of spawning redds and electro- fishing. It was recommended that the same outlet be used for water release from Ruedi Dam between October 15 and July 1. This was to ensure that adequate water flow would be maintained over the eggs for the duration of the incubation period. It was also recommended that temperature readings be reported daily starting October 1. Once water temperature has reached 48 F, or on October 15, whichever comes first, the release from ' Fryingpan-Roaring Fork Literature Review February 27, 2002 Miller Ecological Consultants, Inc. Page 5