COLORADO (Cont. ) 



Larimer County; began April 1949, expected to close Novennber 1959; $10,000; 



James Boyd, Leader; a limited number of mimeographed reports are available. 

 Address correspondence to: W . D. Klein, Game and Fish Dept. , 1530 Sherman 



St., Denver, Colo. 



2. Fishhook and Lost Lake Studies (FA: F-l-R in part). 



This investigation is designed to give return-to-the-creel information on marked 

 plants of rainbow and native trout fry, 3- and 5 -inch fish, and information on 

 fishing pressure and success. Also, limited limnological studies, food habit 

 studies, 'and age and growth studies are being conducted. The lakes are above 

 the 10, 000-foot elevation and are reached only by a 6-nnile pack. 



On the Continental Divide, northwest portion of Colorado; began June 1948, planned 

 for 5 Vz years; #3,500; C. A. Weberg, Proj. Ldr; limited number of n:iimeo- 

 graphed reports available after August 1, 1953. 



Address correspondence to: W. D. Klein, Game and Fish Dept. , 1530 Sherman St. , 

 Denver, Colo. 



3. Experimental Fertilization of the High Elevation, Relatively Unproductive Trout 



Lake (FA: F-l-R in part). 



The objective of the study is to deternnine the relative effectiveness of commercial 

 fertilizer in increasing the productivity of a high, unproductive trout lake. The 

 water in these lakes contains only minute quantities of dissolved solids. Plank- 

 ton has been used as the indices of the value of the fertilization program initiated. 



Near top of Medicine Bow Range of Mountains, Larimer County; began June 1951, 

 planned for 4 Vz years; $3,500; limited number of mimeographed reports avail- 

 able after August 1, 195 3. 



Address correspondence to: Dr. John R. Olive, Dept. of Zoology, A. k M. College, 

 Fort Collins, Colo. 



4. Skaguay Reservoir Studies (FA: F-l-R in part). 



These studies are designed to provide information for the management of fluctuating 

 water level trout reservoirs. The return to the creel of marked plants of 

 hatchery-reared rainbow trout of legal size is being studied. Kokanee salmon 

 have been stocked on an experimental basis. The spawning migration is being 

 studied by means of a trap in the inlet stream. Food habit studies of the more 

 important species is under way and limnological studies are being carried out 

 in detail. 



Teller County; began April 1952, continuing; $10,000; R. L. Moore, Proj. Ldr.; 



limited number of mimeographed reports available after August 1, 1953. 

 Address correspondence to: W. D. Klein, Game & Fish Dept. , 1530 Sherman St. , 



Denver, Colo. 



5. Forest Lake Return, To-The -Creel Studies (FA: F-l-R in part). 



The objective of this study is to obtain data on contribution to the creel of sinnilar 

 plants of rainbow and brook trout approximately two inches long. The fishing 

 intensity, methods, and fisherman success are recorded, accompanied by ob- 

 servations on food habits, and rate of growth of the fish. 



