THIRTY-FIFTH mKNNIAL REPORT 



33 



greatest present problems is the maintenance of suitable environment 

 for fishes as a result of encroaching civilization they will be called 

 upon to supply much of the necessary biological information for the 

 Division's programs for pollution control and check dam, fish ladder 

 and fish screen construction. 



Furthermore, each man has been assigned a special project of state- 

 wide importance to be carried on over a period of years. These special 

 projects include fish disease studies and their application to hatchery 

 operation, analysis of sport catch statistics, study of the environmental 

 relationship of trout and other fishes and the continuation of the 

 Steelhead and salmon studies with emphasis on the completion of the 

 Wiaddell Creek work. 



The pollution control work which is growing of greater import- 

 ance in fisheries work with the further development of the State is 

 handled as a joint operation of this Bureau and the Bureau of Patrol. 

 This detail is under the direction of Paul A. Shaw and a separate 

 report is made upon it by him. Too great an emphasis can not be 

 made on the importance of this work to fish conservation. ^h\ Shaw 

 has also rendered great service to the Bureau during the biennium in 

 carrying on chemical work in connection with hatchery operations. 



The following table indicates the hatchery units that were in 

 operation or partial operation during the three years or portions 

 thereof that are included within the biennium. 



Alpiuo 

 Biisin Ci-tM'k 

 Big Creek 

 Blackwood 

 Brookdale 

 Biirney Crecli 

 rold Creek 

 Domiiiffo Sprinf;s 

 Fall Creek 

 Feather River 

 Fern Creek 

 Poorest Home 

 Fort Seward 

 Hot Creek 

 Huntington Lake 

 Kaweah 

 Kinffs River 

 r^ake Almanor 

 Madera 

 Mt. Shasta 

 -Mt. Sha.sta 



Experimental 

 Mt. Tallae 

 .Mt. Whitney 

 Prairie Creek 

 Tahoe 

 Yosemite 

 Tuba River 



TABLE I— HATCHERIES 



1937 

 Alpine 

 Basin Creek 

 Big Creek 

 Blackwood 

 Brookdale 

 Burney Creek 

 Central Valleys 

 Cold Creek 

 Fall Creek 

 Feather River 

 Fern Creek 

 Forest Home 

 Fort Seward 

 Hot Creek 

 Huntington I^ake 

 Kaweah 

 Kings River 

 T nke Almanor 

 Madera 

 .Mt. Shasta 

 Mt. Shasta 



Experimental 

 Mt. Tallae 

 .Mt. Whitney 

 T'rairie Creek 

 Tahoe 

 Yosemite 

 Yul)a River 



1'.>3S 



Alpine 

 Basin Creek 

 Big Creek 

 Brookdale 

 Burney Creek 

 Central Valleys 

 Fall Creek 

 Feather River 

 Fern Creek 

 Forest Home 

 Fort Seward 

 Hot Creek 

 Huntington T.ake 

 Kaweah 

 Lake Almanor 

 Madera 

 Mt. Shasta 

 Mt. Shasta 



Experimental 

 :Mt. Tallae 

 Mt. Whitney 

 T'rairie Creek 

 Tahoe 

 Yosemite 

 Y'uba River 

 Snow Mountain 



The reduction in the number of hatcheries operated during 1938 

 was in large part the result of the storm damage previously recounted, 

 one exception being the Blackwood Tanks. This plant consists of 12 



3 — 65726 



