558 KEPORT OF COMMISSIONER OF FISH AND FISHERIES. [92] 



of tlie third year, and tlial, tliorerorc, in slaitini;- a ])0)id farm three years 

 instead of two are \\itliout result, and also that when the (-han^e is made 

 IVom the three to the four years' ])eriod, one year will be without any 

 ])roht; but by the suiplus of the fourth and fifth year this dilferenec 

 is e<juali/ced; and from that time on the farm will annually yield a sur- 

 ])lus, mainly caused by its reorjianization. it furtlier follows from this 

 that the ])iodueti\('ness of a pond iaim will i>Teatly depend on usin^- 

 a rational method; Jbr the same results as those given abo\e luiAe been 

 attained in i)raetiee by reor;j;anizing- a larije jjond farm, where, without 

 increasinj^' the total stoek of llsh, tlu^ yield was doubled. It is therefore 

 a great mistake to sell three years' earp weighing about 1.5 pounds 

 apiece, while that juefhod must be considered the most rational by which 

 the ])ond cultivator succeeds in raising in two years carp weighing two 

 ])onnds and finding a leady market i"or them. The fish Avhich are to 

 i'orm the stock of the stock j)onds are taken irom the raising i)onds. 



The inimber of fish to be ]>laced in the stoek ])onds de])ends on the 

 nature of the soil, the (juantily of ibod, the location, and water sujjply 

 of the jjond, and on the age and weight ol" the fish to be ])laced in it. 

 Yoji Iveider says : "The number of fish to l)e jdaced in a stock pond de- 

 pends solely on its ca])acity lor furnishing Ibod; good ponds should bo 

 stocked at the late of about 2','>0, and poor ones of loO fish ])er lu'ctare. 

 But if fish which ha\"e only spent one year in the raising i)ond are i)laced 

 in stoek ])onds which are fished clean eveiy year, oidy 230 fish should be 

 counted per hectare. In order, liowever, to deri\e still greater benefit 

 irom huge stock' ]>onds, the nund)er may be still lower; but if this is 

 done no fish of piey shoidd be allowed in the stock i)onds. ]iut this 

 should oidy be done if one thiidcs that the losses would l)e greater if 

 jnore fish were ])]aced in the pond."* 



Keimann says: " Eveiy s(piare rod of stock ]»ond area should receive 

 one carp I'rom the raising j»onds; the age of such eaq) should be three 

 years; metlium stock ponds should receive one carp i)er li square rods 

 (/. ('., ])er hectare, 470 and.'JlO, resi)e('tively), and poor stock ])onds should 

 receive 1 three-year-old carp I'or from 2 to 3 scpiare j'ods (?'. c, per hec- 

 tare, 150 and 23(>, res])ectively)." 



Eeimann says in anothei- place: "Some peo])le take, 'as a general 

 rule, lor a one year's course in the stock ponds, carp weighing fully one- 

 half pound apiece, and, if ])ossible, those which have reached the age of 

 three years, and for stock i)onds which are fished clean every year car]> 

 weighiug 1,1^ to H ])ounds, also three years old. According to the 

 greater or less size of the stock ponds, and their greater or less capacity 

 tor furnishing food, such peoi)le will stock a i)ond area of 120 square 

 rods with GO, 50, 45, and sometimes with oidy 40 fish {i. c, 240, 200, ISO, 

 IGO, respectively, per hectare)."! 



The proper time for stocking the stock ponds is autumn, immediately 



* Vou Reider, J)as Game d^r.J'mhm} 18^5, 

 t Ileimaua, pp. 86, 87, 



