54 



Hokkaido, the North Eastern parts of Japan and districts facing- 

 the sea of Japan, where as many as 50,000,000 or 70,000,00a 

 are liberated annually, fish eggs hatched while the number of for the 

 last year reached 85,000,000. Within recent years rice paddy 

 fields are utilized for the purpose of bringing up young carp 

 which practice is gradually spreading over the country. 



According to the utilization made in 1907 the number of 

 piscicultural grounds is 32,125 with an area of 106,396 areas. 

 Shores, lakes and pools still available for the purpose cover 

 343,137 acres. Thus it will be seen that the future of the 

 industry is full of promise. We publish herewith statistics of the 

 principal fish produced in the piscicultural grounds already 

 established. 



OUTPUT OF PISCICULTURE. 



Descriptions. 



1905. 



1906. 



1907. 



Porphyra. 



Yen. 

 684,229 



Yen. 

 1,176,618 



Yen. 

 1,432,899 



Short- razor-clam . 



341,868 



339,170 



205,634 



Oysters. 



527,646 



153,018 



167,808 



Pearls. 







41 1,000 



Arc Shell. 



II 



34,527 



44,794 



Carp. 



482,805 



343,857 



382,684 



Grey-Mullet. 



90,570 



169,831 



200,683 



Eels 



42,688 



135,992 



157,590 



Tortoise. 



9,782 



9,705 



10,479 



Other Kinds. 



241,547 



442,872 



705,887 



Total. 



2,430,145 



2,805,590 



3,719,458 



Below are given 

 (i) The Marine 



explanations of the exhibits. 



Piscicultural Distribution Map Exhibited 



by the Fishery Bureau. 



