[147] POND CULTURE. Qi^ 



jority of them should, if possible, be caught iu deep water. The fish- 

 eries should be carried ou as rapidly as possible, so that not too nianv 

 of the fry perish, and they soon get again in fresh water— in autumn 

 in the winter ponds and in spring- in the raising ponds. The spawn- 

 ing carp must be handled just as tenderly as the fry during the fish- 

 eries and during their transfer to the raiding ponds, as the least in- 

 jury done to them will hurt not only them but also the fry. Although 

 any injury done to the spawning fish is not as serious after spawning as 

 prior to it (as probably they will be sold immediately or after a short 

 stay iu the stock ponds), it is self-evident that, owing to their size and 

 their value, they must be handled with care. 



While thefisheriesaregoingon in the spawning ponds, the fry should at 

 once be sorted and arranged iu two or three classes. The best way to do 

 this is to put the fry in the sorting-vans covered with linen and to wash 

 them, care being taken that the water does not fall on them too heavily. 

 ; Experienced men should attend to the sorting, and should place thein 

 in the tubs, from which they are taken with nets or dippers, counted, 

 put in the kegs and at once carried to their destination. It should not 

 be omitted to weigh a fevr of each sort as a test. The necessary hints 

 regarding the transportation of spawning carp have already been given 

 , in a former chapter. In these fisheries it is even more necessary than 

 I in other fisheries to have a sufficient number of carts on hand (better 

 I too many than too few), as the quantity of young fish cannot be calcu- 

 lated beforehand with any degree of certainty. If the fry have to be 

 transported a considerale distance — as will be the case on extensive 

 , pond farms— the kegs should be refilled with clear fresh water every 

 ] two hours; and if this is not found near at hand, one should not hesi- 

 j tate to go out of his way to obtain it. In order not to let the water foil 

 on the fry too heavily, so as to injure or kill them, it should be poured 

 into the kegs through a bunch of straw. The kegs must first be filled 

 I with poud water, so as to avoid a too sudden change of temperature 

 I which is apt to injure the fry. Care should therefore be taken not to 

 I pour in during transportation too much cold water at one time, because 

 I this would cool the temperature too rajfidly. If the fish are only to be 

 I conveyed a short distance,*it will not be necessary to add any water, 

 i Raising po7u1 fisheries. — The raising pond fisheries are carried on in 

 the same manner as those in the stock ponds and spaAvuing ponds. In 

 j sorting the fish, however, it will be necessary only to distinguisli two 

 j kinds, small and large ones. To divide the fish into three classes will 

 I be necessary only if the pond had originally been stocked with (isli 

 ) varying greatly in size; and this should, if possible, be avoided. A 

 I few of each sort should be weighed for a test, which can easily be done 

 t in a few minutes. The weight and number of the fish are carefully 

 ! noted down. 



, Summer and iv inter fisheries. — A few remarks must be added regarding 

 the summer and winter fisheries. Both of these fisheries will occur only 



