CALIFORNIA (Cont. ) 



University of California, Dept. of Zoology 



1. Sagehen Creek Experimental Wildlife and Fisheries Project. 



Survival and migration of trout on a year-round basis are being studied by using 

 two-way fish traps for catching trout moving in and out of streams and by diver- 

 sion through side channels. These movements are being correlated with records 

 of water and seasonal conditions. A fish marking program is being developed 

 to enable accurate record keeping. 



Located 15 miles north of Truckee, in the Truckee River drainage; began June 1951, 



planned for an indefinite, long term; $10,000. 

 Address correspondence to: Dr. Paul R. Needham, Dept. of Zoology, Univ. of 



California, Berkeley 4, Calif. 



Fish and Wildlife Service, Branch of Fishery Biology 



1. Limnology and Biology of High Sierra Lakes (Proj. Z5). 



The object of this project is to determine the relationship between biological, 



physical, chemical, thermal, climatic, and seasonal conditions and the growth 



and abundance of trout as a means of understanding those factors that limit 



or control productivity to improve basic fertility and trout management practices. 



Convict Creek Basin, Calif. ; Hdqtrs. : Reno, Nevada; began July 1951, to be conn- 



pleted in September 1953; Norman Reimers, Leader. 

 Address correspondence to: Reed S. Nielson, Chief, California-Nevada Inland 



Fishery Investigations , Reno, Nev. 



2. Survival of Hatchery-reared and Wild Trout in Streanns (Proj. 26). 



The objective is to evaluate the extensive and expensive practice of stocking hatchery- 

 reared, catchable-size rainbow trout in streams and to determine the factor or 

 factors that limit their survival as a means of establishing improved stocking 

 practices and procedures. 



Hdqtrs. : Reno, Nev. ; began October 1950, to be completed October 1955; Reed S. 



Nielson, Leader. 

 Address correspondence to: Reed S. Nielson, Chief, California-Nevada Inland 



Fishery Investigations , Reno, Nev. 



COLORADO 



Game and Fish Department 



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



The objectives are to study fishing methods, use of the lake by anglers, and the 

 return to the creel of all plants of hatchery-reared fish. Also, the limnology, 

 ecological relationships, food habits of all species present, loss of throwback 

 trout, and spawning migrations are studied. A complete check on fishermen is 

 possible. Stocked trout are marked. 



