ALASKA FISHEKIES AND FUE INDUSTRIES, 1911. 



69 



During the year there has been considerable outlay at the station 

 in the way of permanent improvements, including the erection of an 

 additional building for housing the employees, also the construction 

 of a retaining wall along the banlc of the stream adjoining the hatchery 

 grounds. The application of white paint to the interior of the 

 hatchery, including the outsides of the troughs and the trough 

 standards, makes the hatching room much lighter and more con- 

 venient to work in. 



An order of the President dated February 1, 1906, set apart and 

 reserved as a site for the Yes Lake salmon hatchery certain described 

 land and water areas, including Yes Lake and its catchment basin, 

 its outlet, and portions of the shore lands thereof, a total of approxi- 

 mately 55 square miles. In pursuance of this order, regulations were 

 established prohibiting fishing operations in the reserved waters at 

 all times other than when the run of salmon into the lake appeared 

 to be in excess of the number required to fill the hatchery to its 

 capacity. During the run of salmon each season a deputy is stationed 

 on the bay to see that the regulations are observed. 



Following are condensed meteorological data secured at the Yes 

 Lake station during the fiscal year 1911: 



Meteorological Observations at Yes Bay. 



AFOGNAK. 



From the 30,725,000 red salmon eggs collected principally during 

 the month of August, 1910, a total of 26,755,000 fry were hatched, a 

 loss of about 12 per cent. The planting of these fry in waters tribu- 

 tary to Afognak Lake continued into June, 1911. From 405,000 

 humpback eggs taken in August, 1910, plants of .364.150 fry occurred. 

 The average number of eggs per female red salmon for the season as 



