XXII -REPORT ON THE PROPAGATION AND GROWTH OF CARP. 



By Mr. Eckardt-Lubbinchen.* 



[From Circular No. 1, 1880, of the Deutsche Fischeni-Verein, Berlin, February 12, 1880.] 



As experiments continued for several years have fully proved that it 

 is possible to ship embryonized carp-eggs and young carp a long dis- 

 tance, I must draw attention to the transportation of carp-eggs and of 

 carp 7 to 14 days old. 



There is not another pond-fish which can utilize the food contained in 

 the water to so high a degree as the carp. 



Unfortunately, it has hitherto been impossible to raise the carp indus- 

 try to the place which properly belongs to it in our system of economy, 

 chiefly because it was not possible to obtain the necessary supply of 

 carp-eggs and young carp, which were in great demand, and therefore 

 fetched a high price. This evil may be remedied by the most recent in- 

 vestigations of our pisciculturists, which have fully established the pos- 

 sibility and practicability of successfully shipping carp-eggs and young 

 carp. By their nature the carp-eggs are not at all suited for transporta- 

 tion. Their shell is very tender and easily broken, and, moreover, these 

 eggs are hatched five to ten days after impregnation if the temperature 

 is -f 20° to 15° Reaumur, and the sun shines brightly. A special method 

 must therefore be employed. Although this method is undoubtedly 

 open to many improvements, I have felt encouraged to send embryonized 

 carp-eggs to America, and hope that most of them will arrive in a healthy 

 condition. 



I am prepared to gather the naturally impregnated carp-eggs clinging 

 to plants or pieces of wood, to estimate their number, and to send them 

 away in specially-prepared boxes. 



As the embryo of the carp and the young fish itself develop with 

 remarkable rapidity, it will be necessary, immediately after their arrival 

 at the place of destination, to take out the inner box, and, without open- 

 ing it, to place it in the water in which the young fish shall be hatched, 

 and then to open the box after it has been in the water for at least an 

 hour. The contents of the box should then be emptied at once into a fiat 

 box measuring about 1 to 2 cubic meters, having two openings covered 

 w'th wire-gauze, and placed in the same pond. Here the eggs should 

 remain until the young fish slip out. The grates should be of iron wire, 



*Herr Kittergutsbesitzer Eckakdt-Lubbinchen: "Bericht iiber Earpfenvcrmeh- 

 rung."— [Translated by Herman Jacobson.] ^ 



