FORTY-FIRST BIENNIAL REPORT 111 



been kept. Since 1925 there have been 16 years in which the king salmon have 

 been counted. The average annual count for this period is 12,068. An electric eye 

 counting device was tested and found reasonably successful. It is recommended that 

 next year the racks be left in the river until the silver salmon run is completed and 

 longer if possible. 



Shasta River fish count, Siskiyou County, 1949-50. Submitted March 10, 1950. 



4 pp., including 2 tables. 



Abstract : The Shasta River counting station was put in operation on Sep- 

 tember 15 and was maintained until January 19, when high water caused a rotten 

 timber to give way and several sections of the racks were washed away. The first 

 king salmon passed through the racks on September 28, the last October 14 ; 

 total king salmon count was 193. The first silver salmon was counted on October 24, 

 the last on December 20; total 312. The first steelhead apjieared on Octol)er 3 and 

 to the time the racks washtul out 401 fish were counted through ; probably the 

 greatest part of the run occurred after this. It is recommended that if a new station 

 can be established before September, 1950 the present station be abandoned; if this 

 cannot be done the present station should be used to count the king salmon run 

 only. 



Creel census, Shasta River, Siskiyou County, April 29, 1950. Submitted June 8, 

 1950. 6 pp., including 3 tables. 



Abstract: On the opening day of the 1950 fishing season a creel census wa.s 

 made on the lower 7 miles of the Shasta River. 48 anglers were interviewed 

 and 63 fish measured. 109 anglers were counted and 200 estimated to have fished 

 the section on the opening day. The estimated catch per day was 11.5 and the catch 

 per hour was 4.35. All fish seen were immature steelhead ranging in length from 

 4.5 to 9.5 inches, with an average of 7.0 inches. Rough estimates of the pressure 

 on this section of the river indicate that while fishing lasted (April 29-May 21) the 

 total catch in this section was 8,500 fish, largely 2-year old steelhead. 



Sacramento River Experimental Streard, 1949 report. Sul)mitted May 22, 

 1950. 21 pp., 11 tallies. 



Abstract : Results of the creel census on the South and Middle Forks of 

 the Sacramento River and on 14 lakes and 2 tributary streams are reported. Results 

 of shocking experiments on the South Fork are given. Following is a brief summary 

 for the 2 forks : South Fork — 439 anglers ; 2,581 total catch ; catch per hour 2.59 ; 

 wild rainbow trout 2,077 ; hatchery rainbow trout 470 ; eastern brook 14. Middle 

 Fork — 179 anglers; 1,555 total catch; catch per hour 2.55; wild rainbow trout 

 1,184 ; hatchei-y rainbow trout 371. 



Pine Creek Basin, Modoc County, Stream Improvement Project. Submitted 

 June 16, 1950. 4 pp. 



Abstract : Recommendations are made for lake and stream improvement 

 in Pine Creek Basin, Modoc ("ounty. The following projects are recommended : 



1. A rock and dirt fill dam to form a 15-acre lake in Pine Basin meadow. 



2. A rock and dirt fill dam to deepen a small lake already in existence. 



3. Several small dams to form pools in Pine Creek itself. Up to 10 such small 

 dams could be constructed. 



Wales, J. H., and M. Coots 



Creel census. May 1, 1949. Klamath River, Siskiyou Countv. Submitted June 6, 

 1949. 3 pp. 



Abstract : The Klamath River was checked on opening day from Copco 

 to Humboldt line, a distance of 134 miles. Anglers counted, 357. Estimated catch 



5 fish per angler or 1,785 fish. All immature steelhead, average length 7.0 inches. 



Wales, J. H., and E. R. German 



Castle Lake trout investigation, 1949 season. Second phase : Eastern brook 

 trout. Submitted May 16, 1950. 23 pp., including 20 tables. 



Abstract : Catch for 1949 was 4,928 trout in 1,067 angler days ; 4.6 fish 

 per day ; 1.78 fish per hour. Of yearling eastern brook planted in 1947, 48 percent 

 had been caught by end of 1949 season. Of fingerling eastern brook planted in 1947, 

 21 percent had been taken by end of 1949 season. Of the eastern brook fingerlings 

 planted in 1948, significantly more were caught with mark of LV and Ad than of 

 Ad mark alone. High survival of plants has caused reduction in food and in growth. 

 Fingerling plant after two yeai's in lake averages only 6.7 inches. 



