Adding prime costs and costs of fishing, delivery, and processing 

 (C.77 rubles) would allow a profit only at the specified higher 

 stock amount, given certain assumptions because the wholesale 

 market price is 2.82 rubles (witn costs totaling 2.37 and 2.91 

 rubles per kg for the two stock amounts) for fillets. 

 Suoject descriptors: 



Grass carp; Russia; economic feasibility; method evaluation; 

 revenue; costs; returns. 



152 



Minamisawa, A.; Sakai, H. 

 1969. 



Cultivation of a hamachi (Seriola guingueradiata, Temminck et 

 Schlegel) . (Hamachi no yoshoku.) 



Suisan Zoyoshoky Sosho 18: 1-56. (Copy of translation available 

 on loan from NHFS. ) 



Various aspects of Japanese hamachi culture (young or infant 

 yellowtail, Seriola guingueradiata) are discussed. The fry 

 (mojako) are caught in coastal waters; hatcheries have not yet 

 proven feasible. Three types of enclosures are used: diked 

 ponds, net pens (fenced-off areas), and smaller net enclosures 

 (suspended net "boxes", etc.). The advantages and disadvantages 

 of each are discussed, along with design variations. Other 

 topics include fry planting (numbers of fry caught and planted 

 are given by Prefecture for the years 1965-68), environment, feed 

 and growth, diseases, a 12-month description and schedule of 

 culture activities, marketing, and enterprise management 

 considerations. Prices are affected by season, guantity of fish, 

 market (city) , size of fish, freshness and other factors. The 

 fry are caught and planted about early May, and may be harvested 

 about August when they reach 300 g. Winter prices (October to 

 January) are lowest. The fish are killed at the production site 

 beginning in October or may be shipped by boat, rail truck, and 

 even airplane. At-market killing and other preference factors 

 affect price. Prices are highest in the spring when the 

 overwintered fish are marketed. As to management, the importance 

 of feed and labor costs and their reduction are discussed, along 

 with cooperative forms of business. Itemized costs are shown for 

 farms using 4,000 to 20,000 fry (Ehime Prefecture, 1967). 

 By-item percentages of cost are shown for the three methods of 

 culture, based on a sample of 37 firms, Seto Island Sea, 1967. 

 Subject descriptors: 



Yellowtail; hamachi; Japan; methods; technigues; biology; sts; 

 method comparison; economies of scale. 



153 



Priddy, John M.; Culley, Dudley D. , Jr. 



1972. 



Frog culture industry, past, present, future? 



Amer. Fish Farmer World Aguacult. News 3(9): 4-7. 



Bullfrogs are used for education and research as well as food 



70 



