PUBLIC DOCUMENT No. 25. 39 



In aerating, a copper screen which keeps the small fry away 

 from the dipper and the splash of the water should be used. 

 Little aerating is necessary, and the fry will live in good con- 

 dition for thirty to forty-five minutes without aeration. 



Liberate yellow and pike perch fry in small quantities over 

 a wide area in the grass near the shore, where food may be 

 found. Keep the cans covered lightly to prevent strong light 

 from entering, since the fish are inclined to congregate in the 

 bright light, and in so doing may smother. 



Dippers and screens should be returned with as little damage 

 as possible in boxes provided for that purpose. See that all cans 

 are properly tagged and returned at once to the hatchery. 



FISH SALVAGE. 



In the town of Falmouth, seining of white perch is carried 

 on in the spring, and in the fall from November 10 until the 

 ponds freeze. Several new locations will be tried out for a fresh 

 supply, in order that the used ponds may restock naturally. 

 Bullheads have been taken with traps from private ponds in the 

 Hubbardston Reservation. Bass have been obtained from North 

 Watuppa Lake at Fall River. Landlocked smelts have been dis- 

 tributed to ponds from Onota Lake, notably those stocked with 

 salmon. In several instances, during high water in the rivers, 

 stranded fish were rescued from the overflow. 



In the future the work of the salvage of fish will play an 

 important part in the activities of the Commission. Plans are 

 now under way toward extending this work to private waters, 

 particularly reservoirs and other ponds where public fishing is 

 prohibited, in order to place the fish from these waters in 

 places available to the fishing public. Likewise, more extensive 

 work is contemplated in rescuing stranded fish from streams in 

 times of overflow or during drought. By this means thousands 

 and even millions of adult fish can annually be provided for 

 the public waters in addition to the output of the hatcheries. 



The proper performance of this important work will entail 

 the services of specially trained men, who will devote to it their 

 entire time for several months each year. A large automobile 

 truck fitted w r ith the requisite equipment for salvage, such as 



