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MAKING A FISHERY. 



Amateur 

 hatcheries. 



Ponds for 

 growing year- 

 lings. 



of breeding from healthy, vigorous, well-con- 

 ditioned, and large fish. They are also aware 

 of the dangers of continual inbreeding, and 

 therefore never lose an opportunity of intro- 

 ducing into their ponds trout of good strain 

 that they can purchase. 



Stocking can, of course, be carried out by 

 establishing a regular hatchery with troughs, 

 water supply, &c, either taking eggs from the 

 indigenous trout or purchasing them from a 

 pisciculturist, hatching them in troughs and 

 growing them up to any size required. Many 

 amateurs have tried these experiments, but 

 most have failed from some cause or another. 

 Some have taken the ova from their own fish, 

 and been discouraged by the ever-present diffi- 

 culty of finding female and male ripe at the 

 same time. Some, having taken the ova and 

 carefully deposited them in the hatching troughs, 

 have been amazed to find that the water was 

 not sufficiently pure or the supply not sufficiently 

 constant, and hence the result obtained has been 

 too poor to warrant their continuing the experi- 

 ment. Some, again, have hatched out a fair 

 proportion of the ova and then been alarmed at 

 the mortality at the commencement of the 

 feeding stage. 



Some, having overcome all these difficulties, 

 have proceeded to construct ponds as to which 



