^fe;^5ii 



Care During Transportation. 



The fry and fingerlings of most species are distributed in spring and early 

 summer. The cans containing these young fish are accompanied from the 

 hatcheries by a messenger, who cares for them during the railway journey. The 

 water in the cans must be kept constantly aerated, so that the fish will not 

 suffocate from lack of oxygen. Unless special apparatus is provided, this is 

 done by hand, water being dipped up from the top of the can and allowed to fall 

 back from a height. Such attention is required at least every half hour. The 

 water must also be kept cool, with the use of ice, if necessary. The applicant is 

 notified by telegraph on what train the fish will be shipped. If he does not meet 

 the train, they cannot be delivered, but are carried on by the messenger to the 

 next station where an applicant awaits a shipmnt^ 



The same car is required during the journey from the railway station to 

 the streams that is given by the messenger on the train. Under no circumstances 

 must the fry or fingerlings be kept in the cans over night without attention. It 

 is necessary to take them directly to their destination and plant them at once. 

 They should be protected as much as possible from jarring while being trans- 

 ported by wagon, to prevent injury to the young fish from being thrown against 

 the sides and bottom of the cans. 



Importance of Water Temperature. 



Just before actually placing the fish in the water, attention must be given 

 to the temperatures of the water in the can and in the stream. If this vital point 

 is neglected, the entire planting may be for naught, for a difference of only a 



In the Early Morning 



few degrees between the two waters will kill young fish. A twenty-five cent dairy 

 thermometer will show whatever variation there is. However sm^ll the variation 

 may be, the temperatures must be equalized by dipping water from the can into 

 the stream, and from the stream into the can, a little at a time. Another method 

 Is to stand the can in the stream, but this takes much longer. 



Planting. 



When the temperature is right, the can may be emptied. The fish may be 

 dipped out. or carefully poured from the can. In the latter cast, the mouth of 

 the can should be held no more than a few inches above the stream, so that 

 the fry will not be jarred by the Impact of the water. The fish should be spread 

 out as much as possible, some being planted in one place, and others a little 

 further away. No more than 500 fingeslings or 2000 fry should be planted per 

 mile in a small stream. The food supply will be in danger of exhaustion in over- 



fit.OCk6(l WfltCFB 



Artificial Stream Pools and Side Pools. 



One of the very best means that can be adopted for the protection of the 

 fry of stream fish is the building of artificial stream pools. These are formed 

 by daipmning up the headwaters of rivulets and little spring creeks. A number of 



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