Yorba Linda Reservoir, Orange County, is owned by the Anaheim Union Water Company, which allows 

 no public fishing, but permits the Department of Fish and Game to operate the reservoir as a brood 

 pond. In this photograph warm-water game fishes are being seined for use in restocking Puddingstone 

 Reservoir, Los Angeles County. Puddingstone had previously been treated chemically to rid it of rough 



fish by department personnel. 



Intensive studies were made on several selected waters, especially Clear 

 Lake in Lake County, Millerton Lake in Fresno and Madera Counties, 

 and waters in the Colorado River Basin. These were supplemented by 

 widespread sampling of the populations of young fish in a large series 

 of reservoirs throughout the State. Results generally indicated adequate 

 largemouth black bass reproduction but inadequate forage for the bass of 

 the year's hatch, resulting in low survival of bass fingerlings. 



To correct this situation, forage fishes, principally golden shiners, were 

 introduced into a number of waters, as listed in the section on "Fish 

 Introductions. " It is too early to evaluate the effects of these introduc- 

 tions. Meanwhile, studies of other species of forage fishes have been made. 

 At present, the threadfin shad (Signalosa) and fathead minnow (Pime- 

 phales promelas) appear to hold considerable promise. In addition, inves- 

 tigations have been conducted of the suitability of white bass (Morone 

 chrysops) and other predator species for introduction into California 

 waters, especially our large fluctuating reservoirs. Other work in con- 

 nection with the warm-water fisheries is described elsewhere in this 

 report. 



