58 FISH AND GAME COMMISSION 



Titles and Abstracts of Administrative Reports Submitted by the 

 Biological Staff July 1, 1946, to June 30, 1948 



CALHOUN, Alexander J. 



Observations of the Striped Bass Fishery in the Saornmonto Delta Area 

 during April and May of 1946. Submitted July 11, 11)4(5, .".(J pp., 4 tables, 

 6 figures. 



Aistract : Methods used in sampling the livery boat fishery are described. 

 Fishing effort and average daily catch at Frank's Tract are discussed. Length fre- 

 quencies and sexual maturity of the catch are discussed. The fishery in the main 

 San Joaquin River is described. Average daily catch was between 1 and 2 bass 

 per angler day in most samples taken. Fish were ripe almost without exception, 

 and females averaged 26.5 inches, males averaged 18.5 inches, in the samples 

 measured. Migration and spawning time, as revealed by catch observations, are 

 taken up. The desirability of a closed season during the time of spawning is dis- 

 cussed, and it is concluded that such a measure has little to recommend it. 



1944 Angling Catch Records of California. Submitted December 12, 1946. 

 18 pp. and tables. 



Abstract: Results of the postal card survey of California angling catches in 

 1944 are presented. An estimated 1,420,000 striped bass were caught. Other esti- 

 mates pertaining to the 1944 striped bass catch are derived and discussed. Other 

 species are not considered because of the restricted scope of the 1944 survey. 



Progress Report on Studies of Striped Bass Reproduction in the Central 

 Valley, with a preliminary evaluation of the threat of the Delta Cross-Channel 

 to the striped bass population. Submitted November 20, 1947. 49 pp., 3 figures. 

 Absti'act: Distribution and abundance of early stages of striped bass in 

 the Central Valley in 1947 on the basis of tow-net samples are outlined. Behavior 

 of eggs, larvae and fry in response to currents is discussed, and it is concluded 

 that prediction of losses of small bass at the Delta-Mendota pumps is impossible 

 on the basis of present information. 



Analysis of 1946 Striped Bass Party Boat Fishing Effort. Submitted 

 March 9, 1948. 7 pp., 1 table. 



Abstract: This report presents a breakdown of 1946 party boat permits 

 issued in the San Francisco office by type of operator, as well as estimates of fish- 

 ing effort expended by the various types, and for the striped bass party boat fishery 

 as a whole. 



CURTIS, Brian 



The Status of the Salton Sea Mullet Fishery. Submitted October 30, 1946. 

 5 pp., 2 tables. 



Abstract: Recapitulation of 1946 catch shows totals of 30,000 fish weighing 

 174,000 pounds, lowest since resumption of fishery in 1943, but probably due in 

 part to death of many mullet in late 1945. Catch per net unit 3.5 pounds. No signi- 

 ficant index of depletion. Maintenance of present regulations is recommended for 

 1947, with a biological study to delimit the spawning season. 



Report of the activities of the biological staff of the Bureau of Fish Con- 

 servation for the 39th Biennium, July 1, 1944, to June 30, 1946. Submitted 

 November 15, 1946. 



..rr.1-- ^^«'''a<^^-' Describes the activities of the staff. Printed in large part in 

 Thirty-ninth Biennial Report of the Division of Fish and Game" as part of the 

 report of the Bureau of Fish Conservation. 



The Frog Lake (Nevada County) Fishery in 1946. Submitted April 7, 

 1947. 14 pp., 5 tables, 1 figure. 



Abstract: Four years of planting 15,000 RT annually, after four years of 

 planting equal number of RT, EB and BN, leave the BN still dominant in the 

 catch (58 percent). Poor showing of RT is discussed; gill netting of large BN 

 IS recommended, and test of fall-spawning RT survival vs. spring-spawning stock. 



Catch estimates and creel counts in California. Prepared for presentation 

 on June 4, 1947, at Santa Fe meeting of Western Association of State Game and 

 Fish Commissioners. 13 pp. 



Abstract: Description of mail questionnaire used in sampling angler's catch 

 and of methods of estimate. Estimates are given for the years 1936-1943. Correla- 

 tion with survival data from creel counts indicates that only about one-eighth 

 of total trout catch results from hatchery planted trout. 



DILL, William A. 



Trout and Salmon of California. 10 pp. 



The Warm-Water Fishes of California Fresh Waters. 10 pp. Both sub- 

 mitted January 21, 1948. 



Abstract: Brief discussions and descriptions of the various fishes, prepared 

 for use at the wardens' schools conducted by the Bureau of Patrol. 



