PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1024 398 



Apjplegate Creeic (Oreg.) suhstation. — Early in the 5"ear retaining 

 corrals of a combined area of 6,000 square feet were built along the 

 north shore line below the barrier in Applegate Creek and were very 

 sucoessfully used during the succeeding runs of silver and steelhead 

 salmon for holding immature fish pending the ripening of their eggs. 

 Climatic conditions at this point were very unfavorable to fish culture. 

 As there was almost a complete absence of rain, the water level in 

 the creek throughout the entire year was never above the normal 

 summer stage, and there were only a few days when it was high 

 enough to give fish ready access to the traps. Notwithstanding this 

 drawback the results of the season's fish-cultural work compare 

 favorably with those of recent years. In the course of the fishing 

 season, extending from November to May, 5,470,000 eggs of the 

 silver salmon and 3,504,000 of the steelhead were secured. No ill 

 effects from the low water level were noticeable while the eggs were 

 undergoing incubation, though the liberation of the steelhead finger- 

 lings carried over from the preceding year at an unusually early period 

 was necessitated. The distributions from this substation included 

 shipments of eyed eggs to Hawaii, Czechoslovakia, Poland, France^ 

 and to a number of State hatcheries. 



Sandy River (Oreg.) suhstation. — Since the Portland Electric Power 

 Co. has extended the walls of its canal to a point where the entire 

 flow of the river may be diverted, there are times when fish-cultural 

 operations at this point are quite impracticable. In fact, it is not 

 uncommon to find the river bed dry for a distance of 8 miles or more, 

 and it seems to be only a matter of time when this once beautiful 

 stream will be quite devoid of its famous salmons and trouts. For- 

 tunately, the run of steelhead salmon occurs in the early spring 

 months, and owing to this fact the species may be able to maintain 

 itself in the river for a much longer period than the species running 

 at other seasons of the year. 



The year's egg collections, obtained under most difficult conditions, 

 amounted to 1,823,918 of the chinook, silver, and steelhead salmons. 

 From this stock a good percentage of fish was realized for distribution. 



Sahnon (Idaho) suhstation.— As at other points in the field subor- 

 dinate to the Clackamas station, a successful season's fish-cultural 

 work was experienced at this substation. From local streams, includ- 

 ing the Pahsimeroi River and Lemhi Creek, approximately 9,500,000 

 chinook-salmon eggs were taken, and as the rearing capacity of the 

 Salmon hatchery was not large enough to accommodate all of them, 

 the surplus eggs had to be transferred to points nearer the coast for 

 incubation. However, it is not considered good fish-cultural practice 

 to ship salmon eggs from the upper tributaries of the Colmnbia River 

 to points nearer its mouth, and with the view of obviating this neces- 

 sity in the future an effort is being made to increase the hatching and 

 rearing facilities at Salmon so that all eggs taken in that region here- 

 alter may be cared for locally. 



By way of experiment 125,000 chinook-salmon eggs were sent from 

 the Little White Salmon station to the Salmon hatcher}'. It is 

 planned to mark some of the fish resulting from these eggs before re- 

 leasing them for the purpose of ascertaining if the homing instinct of 

 these so-called "fall run" fish will be strong enough to induce them, 

 to ascend the Columbia and Snake Rivers to a point hundreds of 

 miles above the tributary selected as spawning grounds by their 



