HOW TO STOCK TBOTIT-STREAMS. 



11 



brook, and from the brook to the pond, just wben tJbey think 

 fit. A large piece of perforated zinc should be placed in the 

 brook, at the mouth of the inlet (A), to prevent the entrance of 

 fish, rats, or rubbish; and if there is not sufficient fall in the 

 brook to cause the water to flow through the redd, a small 

 dam may be required across the brook below A. 



This arrangement can be made by any labouring man for 

 something under £2 ; but, of course, where expense is no object, 

 a considerable amount of money may be spent in brickwork, 

 settling-pond, filter, &c. Fig. 2 shows the trench, inlet, and 



BROOK 



BROOK 



Fig. 2. Simple Arrangement for Trout Breeding (Section). 



outlet, in section. With lakes and large rivers already con- 

 taining trout or other depredatory fish, unless trout of 

 41b. or upwards can be purchased and turned in — a costly 

 proceeding — the best plan is to thoroughly stock the small 

 tributary streams ; Loch Leven has been so stocked with great 

 success. Ninety per cent, or more of the fry placed in rivers 

 containing numerous trout, pike, perch, &c., get eaten up. 

 Besides putting in fish, great attention should be paid to 

 making the stream suitable for trout, increasing the food- 

 supply, &c. — a branch of the subject which I have not space 

 to deal with. 



" Stocking," a pamphlet published at the Howietoun Fishery, 

 Stirling; Livingstone Stone's "Domesticated Trout," published 

 by Sampson Low, Marston, & Co. ; and the "History of 

 Howietoun," by Sir James Maitland, are useful works on trout- 

 culture. 



