ported in 1968, indicated that chum salmon grow 

 more rapidly in brackish water than in fresh water or 

 salt water. These experiments are being repeated at 

 Yamada to develop procedures for increasing 

 growth rate during the time that the tlsh are held in 

 tanks on shore. 



Also, ne.\t year lioka and his associates plan to 

 transfer chum salmon fry to salt water at various 

 ages from 9 to 90 days in order to determine the 

 optimum time. They also would like to test other 

 species, such as the pink salmon, O. gorhushci, and 

 the king or chinook salmon, O. tsluiwyr.sclia, from 

 Hokkaido, and possibly the coho salmon, O. 

 kisutcli, from the United States. 



In summary, the Iwate Prefectural salmon culture 

 station at Yamada is located at a delightful place for 

 experimental aquaculture. The only limiting factor 

 appears to be the high temperature of the water 

 during the summer and the adverse effects of this 

 may be overcome by selection of species or races of 

 salmon, use of hybrids, or treatment to prevent or 

 alleviate the effects of Vibrio and other diseases 

 which are accelerated by high temperatures. Both 

 domestic and export demands are excellent and it 

 appears probable that commercial salmon culture in 

 the marine environment will be economical. 



BIBLIOGRAPHY 



FUJIYA. M. 



1%9. Farming fisheries in Japan. Long Island Univ., Grad. 

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 FURUKAWA, A. 



1971. Outline of the Japanese marine aquiculture. Jap. 

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196.'!. Studies on propagation of yellowtail (Seriola qiiin- 

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HARADA, T.. H. KUMAl. K. MIZUNO. O. MURATA. M. 

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 HARADA. [., K. MIZUNO. O MURATA. S. 

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1971. On the artificial fertilization and rearing of larvae in 

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 HARADA, T., S. UMEDA, O. MURATA. H. KUMAI. and 

 K. MIZUNO. 



1966. On the growth and rearing methods of the fry of 

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INOUE. M. 



1970. Possibility of tuna cultivation and propagation. [In 

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JAPAN FISHERIES ASSOCIATION. 



1971. Fisheries of Japan. Jap. Fish. Assoc. 45 p. 

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(No date but after 1%6.) Surface culture of salmon and 

 trout and some problems thereof. [In Japanese.] J. Fish. 

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1968. Studies on several diseases of fingerling dog salmon 

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1968. Studies on the growth ot fingerling dog salmon 

 (Oncorhynchus kcla) in relation to salinity. [In Japanese, 

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 4:1-6. 

 (No date.) Comparative study of surface and mid-depth 

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 OKIYAMA. M. 



1967. Study on the early life history of a flounder, 

 Paralkhlhys otivaceus (TEMMINCK et SCHLEGEL). 

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1970, Studies on the early life histor> of the rainbow runner. 



Elagiitis bipinniilaliis (Quoy & Gaimard) in the Indo-Paci- 



fic Oceans. [In English. Japanese abstr.] Bull. Far Seas 



Fish. Res. Lab. 3:167-186. 

 UDA. M. 



1970. Recent advances in fisheries oceanography of Japan 



from 1967 to 1969. Jap. Soc. Fish. Oceanogr. Advan. Fish 



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