TWENTY-SEVENTH BIENNIAL REPORT. 



43 



weak embryos. These succumbed early in the season, but the remainder, 

 319,000 were distributed in the lakes of the higli Sierra and in lakes in 

 the Yosemite National Park. Keports received from a number of lakes 

 where these fish have been introduced are. that they are thriving and 

 making a rapid growth. The golden trout is a very delicate tish and is 

 not resistant to bacterial infection of a pathogenic nature. This, no 

 doubt, is due to the fact that these fish have inhabited the pure water of 

 the high Sierra range, that is free from bacteria and fungoid growths for 

 many ages and have not the resistance of the species that liave their 

 range in lower altitudes or the exotic species that have been introduced 

 into this state from the eastern states and Europe. 



The golden trout l)y their liright colors, fall prey to the other species. 

 They will not thrive where other species of trout are livinti: and should 

 only be planted in waters where no other species of predaeeous fish 

 exist. No collection of golden trout eggs was made during 1921 or 1922, 

 as we were desirous of determining the results of the plants already 

 made. We would recommend that the golden trout distribution be con- 

 fined only to the barren lakes of the high Sierra range, until at such 

 time as a resistant stock of these fish can l)e propagated. 



RAE LAKES STATION. 



The Rae Lakes Egg Collecting Station was operated during the sea- 

 sons of 1920, 1921 Vnd 1922. During these three seasons, 1,488,0()() 

 eggs were collected. The fish do not yield over 250 eggs each on an 

 average caused by the lack of proper food in the lake owing to the high 

 altitude, 10,500 feet. The eggs are delicate and considerable extra care 

 must be given them in the early stages to produce strong fry. As soon 



im" 



^.-r-* 



|Lj#^-^^ 



Fig. 12. On the 



lit. i:;.00O ft-et, Willi raiiilxiw tiout 



; 12. On the summit, i.j.ihju n-ei, wmi laiin--" n.-uu 

 ■f-^gs from Rae Lakes, .July 20, 1920. Photograph by 

 L. .1. Stinnett. 



