REARING PONDS AND STREAMS. 57 



CHAPTER VIL 

 REARING PONDS AND STREAMS. 



IT AVING traced the practical treatment and man- 

 * agement of the young fishes until the time when 

 they require to be removed from the feeding box, we 

 now turn to the question of the choice, modification, 

 or adaptation, as the case may be, of any existing 

 facilities for the further rearing of the fry, until they 

 are able to reproduce their species or be turned into 

 the open river to look out for themselves. Lucky 

 indeed is the man who can see on his estate such a 

 place as is well suited to his requirements, without 

 much outlay. A good and unfailing supply of pure 

 water, if possible well stocked with natural food, 

 though this is not to be entirely depended on, and a 

 sloping piece of ground, with a good firm bottom of 

 chalk or gravel, will, with care and attention, and 

 good management, enable a man, with his head set on 

 the right way, to do practically all he wants. There 

 are, however, a few points to be considered before 

 proceeding to active operations. 



Firstly, is the stream especially liable to either flood 

 or drought ; if the former, a side cutting controlled by 

 a sluice or sluices is advisable. This cutting must 

 have an exit below the contemplated ponds or stream, 

 so as to guard against any overflow at the screens, 

 which would admit of the escape of the fishes, always 



