COLORADO (Cont. ) 



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 from marked 

 plants of hatchery-reared rainbow trout of various sizes is being studied. 

 Kokanee salmon have been stocked on an experimental basis, spawning migra- 

 tions are being intensively studied, and a study of the contribution of naturally 

 produced trout to the creel is under way. Intensive sucker control work is 

 being carried out and the practicality of various methods of sucker control is 

 being determined. Every effort will be made to determine the effectiveness of 

 sucker reductions on the game fish population. 



Teller County; began April 1952, indefinite; $10,000; R. L. Moore, Leader; 

 reports available. 



Address inquiries to: W. D. Klein, as in No. 1 above. 



5. Forest Lake Return-to-the-Creel Studies. (FA: F-l-R in part) 



The primary objective of the study is to obtain data on contribution to the 

 creel of sinnilar plants of rainbow and brook trout approximately two inches 

 long. Also, return to the creel information is being obtained on a plant of 

 native fry made in the lake prior to the initiation of the project. The fishing 

 intensity, methods and fisherman success are recorded. Data is also being 

 obtained on food habits and rate of growth of the fish. 



Delta County; began June 1952, to close October 1954; $3,500; P. T. Barrows, 

 Leader; reports available. 



Address inquiries to: W. D. Klein, as in No. 1 above. 



6. Bonny Reservoir Project. 



A study of the limnological and fishery conditions of this impoundment to 

 aid in establishing a management program for the future. 



Yuma County; began March 10, 1954, to close 1958; $5,800; Robert L. Jones, 

 Leader. 



Address inquiries to: Robert L. Jones, Game and Fish Departnnent, Bonny 

 Reservoir, Burlington, Colo. 



7. Holbrook Lake Project. 



A physical, chemical and biological survey coupled with a habitat improve- 

 nnent and population manipulation program is being carried out in order to de- 

 termine if sport fishing can be improved in this impoundment. 



Otero County; began January 1, 1953, to close 1958; $7, 000; Eugene Cook, 

 Leader. 



Address inquiries to: Eugene Cook, Game and Fish Department, 502 Colo- 

 rado, Ordway, Colo. 



8. Greeley Lakes Project. 



An experimental management program including a general survey of the 

 physical, chemical and biological conditions, and some habitat improvement work 

 toward improvement of the sport fishing of these waters. 



Three impoundments in Weld County; began January 5, 1953, to close 1955; 

 $8,500; Robert Evans, Leader. 



Address inquiries to: Robert Evans, Colorado Game and Fish Department, 

 775 Linden Street, Ft. Collins, Colo. 



Colorado Cooperative Fisheries Research Unit 



1. Recreational Trout Fishing. 



Objective of the project is an evaluation of experimental regulations which 

 include a size limit of 12 inches on trout, and a creel limit of 3-5 fish. The 

 problem will be approached through (1) creel census, under present regulations 



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