FORTY-SECOND BIENNIAL REPORT 179 



APPENDIX I 



TITLES AND ABSTRACTS OF ADMINISTRATIVE REPORTS 



SUBMITTED BY THE BIOLOGICAL STAFF OF THE 



BUREAU OF FISH CONSERVATION 



July 1, 1950, to June 30, 1952 

 Abell, Dana L. 



A review and proposed revision of the investigational and management program 

 for Millerton Lake, Fresno/Madera counties. Submitted November 28, 1951. 20 p., 

 plus one figure. 



Abstract : A brief review of prevailing conditions of the fishing and limnology of 

 Millei'ton Lake and a program of study and management for the next five years is 

 given. The investigational part includes a series of cove and shoreline studies, a 

 littoral transect, a general survey, continued creel census, and tagging. Emphasis in 

 management is indefinite as yet, but will probably be directed at improving shelter 

 and basic fertility, controlling wave erosion, and regulating mixed populations of 

 fish and other organisms to benefit the fishing maximally. Public relations and re- 

 ports will also receive emphasis with an eye toward describing the true value of this 

 type of reservoir as a fishing lake. 



Beck, Ralph V. 



Preliminary report on the Owens River development project (Inyo County). Sub- 

 mitted September 13, 1950. 19 p., including 1 table and 2 figures. 



Abstract : The section of the Owens River from Birchim Canyon to the Los An- 

 geles aqueduct intake is about 150 miles long with an estimated average flow of 

 about 400 c.f.s. Survey work has been carried on intermittently, including two canoe 

 trips down parts of the river. This river section is comparatively lightly fished, 

 chiefly by local anglers. Most of the fishing pressure is from "Five Bridges" upstream 

 to Birchim Canyon. Dense streamside cover limits the "bank fishermen" and swift 

 and turbulent currents limit boat fishermen. High summer temperatures and abund- 

 ance of mosquitoes discourage fishing. However, temperatures at the river are sev- 

 eral degrees cooler than in surrounding areas. Mosquito control measures may prove 

 feasible. River characteristics are as follows: extremely meandering; cover dense 

 with occasional open areas ; margins chiefly "cutbank" type with some swampy 

 areas ; gradient even with few riffles or pool and no falls ; bottom composed of fine 

 gravel, sand, mud, and silt ; moderately turbid ; temperatures vary from 42° F. in 

 January to 67° F. in June (higher summer temperatures probably occur). Fishes 

 known to be present include rainbow trout, brown trout, suckers, carp, chubs, and 

 mosquito fish. Work remaining to be done is outlined and tentative recommenda- 

 tions are made. 



Bell, Robert R. 



Creel check at Holy Jim Creek, Orange County, 1951. Submitted August 29, 1951. 

 9 p., including 3 tables. 



Abstract: Covers data, discussion and analysis of a creel check on a small trout 

 stream. The stream offers only one mile of fishing water and is supported by hatchery 

 plantings. Results : 



1. Fifty percent of the planted fish were returned to the angler in three weeks, 

 with the catch declining to less than 1 percent at the end of this period. 



2. The wild trout take was less than 10 percent of the total catch, with no holdover 

 of previous year's planting. 



Calhoun, A. J. 



Lake Merced (San Francisco County) catch records for 1950. Submitted March 

 30, 1951. 18 p., including 3 tables, 1 figure, 5 appendices. 



Abstract : 1950 catch records, weight-length data, and stocking records outlined. 

 40,000 angler days yielded an estimated 16,000 rainbow trout, average weight 21.4 

 ounces. The initial plant following chemical treatment averaging 3 ounces in Janu- 

 ary 1950 when stocked attained an average weight of 2 pounds ten months later. Cost 

 and recreational values are discussed. 



