OREGON (Cont. ) 



8. Suttle Lake Blueback (Sockeye) Salmon Fingerling Survival Study 



This project is being conducted in conjunction with attempts to establish 

 a blueback salnnon run in Suttle Lake which is connected to the Columbia 

 River by the Deschutes System. Liberations of blueback fingerlings have 

 been made in Suttle Lake since 1952 by the Fish Commission of Oregon. 



The survival of fingerlings planted in the fall and leaving the lake the 

 following spring is measured at a counting station at the outlet of the lake. 



Since 1954, all bluebacks released in Suttle Lake have been fin-nnarked. 

 Sport fishery surveys have been made at the lake to determine the contribution 

 of marked bluebacks to the sport fishery. 



U. S. Fish and Wildlife Service cooperating; Suttle Lake; began 1954, 

 continuing; Robert L. Rulifson, Leader; reports available. 



Address inquiries to: Robert L. Rulifson, Fish Commission Research 

 Laboratory, Routel, Box 31A, Clackamas, Oregon. 



9. Gnat Creek Weir Studies 



Gnat Creek weir, with downstream and upstream fish counting facilities, 

 was completed in 1955 on a small tributary of the Columbia River to provide 

 detailed information on the ecology of salmon and steelhead. 



Fin-marking experiments have been undertaken to determine the best tinne 

 for releasing hatchery- reared fall chinook salmon. A second study will be 

 started this winter to compare survival to maturity of hatchery- reared and 

 stream-reared silver salmon fingerlings. 



Similar weir studies at another station on Spring Creek, a tributary of 

 an Oregon coastal stream, have been conducted for several years by the Fish 

 Commission. Detailed information on the stream survival of silver salmon 

 to migrant size has been obtained at the Spring Creek weir. 



U. S. Fish and Wildlife Service cooperating; twenty miles east of Astoria 

 on Gnat Creek; began September 1955, continuing; $10,000; Ernest R. Jeffries, 

 Leader; reports available. 



Address inquiries to: Ernest R. Jeffries, Fish Commission Research 

 Laboratory, Route 1, Box 31A, Clackamas, Oregon. 



10. Hydrographic Studies of Oregon Bays 



In view of proposed pulp plants on certain Oregon bays, these studies have 

 been conducted to determine the flushing action of the bays affected. Data col- 

 lected during the studies are helpful in determining how long pollutants dumped 

 into a particular bay at various points would be retained. 



Office of Naval Research, Oregon State College cooperating; Coastal bays 

 of Oregon; began June 1955, continuing; Lowell D. Marriage, Leader; reports 

 available. 



Address inquiries to: Lowell D. Marriage, Fish Commission of Oregon, 

 301 State Office Building, Portland 1, Oregon. 



Game Commission 



1 . Fish Lake 



The objective of the acquisition of Fish Lake comprising approximately 

 30 surface-acres was to provide for active fishery management and free public 

 use. 



Harney County; began September 1956, closed November 1956; $12, 000; 

 Clifton Lemons, Leader. 



Address inquiries to: A. V. Meyers, Federal Aid Coordinator, Oregon 

 State Game Commission, P. O. Box 4136, Portland, Oregon. 



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