IDAHO (Cont. ) 



7. The Size and Timing of Anadromous Fish Runs Above McNary Dam. 



As part of a comprehensive fishery research program sponsored by the 

 Corps of Engineers, this study is designed to determine the numbers of the 

 several species of salmon and steelhead trout and their time of arrival at 

 various proposed dam-sites on the Snake River and its tributaries. 



U. S. Army Corps of Engineers cooperating; Columbia River and tributaries 

 between McNary Dam and Rock Island Dam; began July 1, 1953, continuing; $16, 000; 

 Ralph Pirtle, Leader. 



Address inquiries to: Jannes C. Simpson, as in No. 1 above. 



University of Idaho 



1. A LiiTinological Study of Pend Oreille Lake with Special Emphasis on the Ecology 

 of the Kokanee. 



The objective of this study has been the measurement and evaluation of changes 

 in selected physical, chemical, and biological features of Pend Oreille Lake, 

 caused wholly or in part by the construction of large dams on the outlet and major 

 inlet of the lake. 



Idaho Fish and Game Department cooperating; Pend Oreille Lake; began 

 June 1952, to close June 1954; Raymond G. Stross, Leader. 



Address inquiries to: Virgil S. Pratt, Idaho Cooperative Wildlife Research 

 Unit, University of Idaho, Moscow, Idaho. 



2. Age, Growth, and Migration of Steelhead Trout in the Clearwater River, Idaho. 



This investigation is one of the first attempts to collect life history informa- 

 tion on a population of steelhead trout which have long spawning migrations. A 

 total of 551 adults, 10 percent of the 1952 run, were measured, weighed, and 

 scale sampled. Fresh- and salt-water age and growth, condition factor, sex 

 ratio, and speed of migration, both of spring-run and fall-run fish are studied. 



Idaho Fish and Game Department cooperating; Washington Water Power dam, 

 Clearwater River, Lewiston; began January 1952, to close February 1954; 

 Charles R. Whitt, Leader. 



Address inquiries to: Virgil S. Pratt, as in No. 1 above. 



ILLINOIS 



Department of Conservation 



Fish Management and Development on State-owned and Other Waters in Illinois. 



Fisheries investigations, management, and development procedures are 

 being performed on water areas throughout the State. Fisheries biologists work 

 on State waters and with pond and lake owners to create and maintain good fish- 

 ing areas, improve habitat, and plan new water development. They recommend 

 and supervise such work as fish population studies, coarse fish removal, popu- 

 lation manipulations by using chemicals, plant control procedures, stocking needs. 



Statewide; began July 1950; continuing; $60, 000. 



Address inquiries to: Sam A. Parr, Superintendent, Division of Fisheries, 

 Department of Conservation, Room 121, State Capitol, Springfield, Ul. 



Creation of New Fishing Waters. 



A program for the creation of new fishing waters is being undertaken in 

 areas now devoid of good angling waters, using State and Federal Aid funds. Dur- 

 ing 1953. the Red Hills Lake Development (F-4-D) was completed. 



Statewide; began July 1946; continuing; $100,000. 



Address inquiries to: Sam A. Parr, as in No. 1 above. 



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