34 TRANSPORTATION OF FISH. 



"Very young fish can be- transported much more 

 safely and with less care than older ones, but I 

 am unable to say whether they can endure as 

 great a degree of cold as older ones. I have 

 never made the experiment, but suppose the cold 

 would not prove injurious to even newly hatched 

 fish. 



Another reason why young fish are much more 

 easily transported than older ones is, that they do 

 not exhaust the water so rapidly; but as eggs are 

 so much more easily conveyed from place to place 

 than the living fish, I would recommend to all 

 persons who wish to stock streams or ponds, to 

 procure the eggs by all means, as it is far more 

 convenient and less hazardous to transport them 

 than the living fish. 



I have kept in my house, in a glass jar, the 

 capacity of which does not exceed two quarts, a 

 great number of newly hatched trout for weeks, 

 by changing the water no oftener than once a 

 day; and as far as I could discover, they did just 

 as well as though they had been put in running 

 water. 



M. Costa has frequently kept young salmon and 

 trout in glass jars for a long time without chang- 

 ing water, by putting aquatic plants into the jar 

 immediately after the fish are hatched. 



