PRACTICAL CARP CULTURE. 



above what you design for high-water mark. There is then no room for 

 the dwelling of the rodent above the water leveL 



PLAN OF A CARP POND. 



The digram shows a fmall valley surrounded by little hills. A creek 

 runs across this valley, and the farmer concludes to make a carp pond on 

 this spot. The first step in the doing of this is lo alter or correct the bed 

 of the creek. Tt is led to the right along the foot of the hill (c r). Next 

 the dam (d) is located and built, at the same time the ditches (c d), the 

 collector (c} and the outer collector (o c) are formed, the material thus 

 obtained being used on the dam. The dam (d) runs first across the valley, 

 then forming a right angle it runs alongside of the creek to protect the 

 pond against the wild water of the latter. L is a lock in the creek which 

 can be opened or closed at will. P"rom here the pond is supplied with 

 water. A second lock in the supply channel, which leads to .7", is supplied 

 with some arrangement, a wooden box with slatted sides, a box of gravel, 

 or a wire netting, to keep out wild fish. 



The form of the bottom of a pond must depend on its size and shape 

 and the purpose for which it is to be used. If there is but one pond t 

 which is to be the home of the carp winter and summer, the pond must 

 be arranged to that end, and must have both shallow and deep water. 

 The carp thrive best in warm water; the reason is twofold. They are 

 adapted to the higher temperature, and the higher temperature produces 

 more food for them in the form of insects, larvse and worms. They will 

 stand a temperature of ninety degrees before dying. In long-continued 

 hot spells, In shallow water subject to the direct rays of the sun, it is not 

 uncommon for the temperature to range from eighty-five to ninety de- 

 grees. The carp then need a cooler, deeper place to retreat to. In winter 

 the shallow water is too cold, and they seek the deeper water for warmth. 

 Many carp eullurists have lost their fish during the winter season, and 



