according to source of funds. The total cost of the project is 



$53,732. Nine recommendations concerning future construction of 



such facilities are outlined. Several tables itemize all costs 



in detail. 



Subject descriptors: 



Sewage effluent use; problems; pond culture; experiment; 



facility; engineering design; costs. 



171 



Anderson, lee G. 

 1973. 



An economist looks at mariculture (the assessment of human needs 

 and some problems of applying technology: the mariculture case). 

 Mar. Tech. Sec. J. 7(3): 9-15. 



Topics include economists' approaches to need and demand, 

 mariculture development, and interdisciplinary research 

 strategies in measuring and determining the significance of 

 spillover effects (externalities) of new technology. Social 

 and/or market willingness to pay is posed as a guide to assigning 

 priorities to competing and multiple demands ("needs" qualified) , 

 so long as market imperfections are recognized as limitations. 

 Following a discussion of the technological barriers to 

 mariculture development, previous estimates (Anderson and labb, 

 197 0) of return on investment in shrimp mariculture are 

 reconsidered to demonstrate the importance of underlying data. 

 The effects of higher prices, two instead of one annual food 

 crop, white instead of pink shrimp, and other changes are 

 considered, all with a caution to recognize data limitations. 

 Subject descriptors: 



Concepts; methodology; evaluation; market role; public sector 

 role; sensitivity analysis; externalities. 



172 



Anonymous. 

 1973. 



Aquaculture in Canada, the opportunities and the risks. 

 Canadian Fishermen Ocean Sci. 59(4): 18-21. 



The discussion at a government-industry seminar (Freshwater 

 Institute, Winnipeg, Manitoba, May 31 to June 1, 1973) is 

 summarized. Opportunities for commercial development to 1985 are 

 identified, and priorities are assigned on the basis of demand 

 outlook, technical and economic feasibility, and social payoff 

 (article lists species ranked into three groups, and 

 opportunities in supportive and ancillary service industries are 

 listed unranked) . Legal, institutional, policy, and attitudinal 

 constraints are listed. R&D needs and priorities are given in a 

 high-priority group (ranked as follows: diseases and parasites, 

 genetics, applied research, and culture systems), and in a low 

 priority group (unranked, as follows: marketing, pollution, 

 economics, thermal and nutrient effluents, information flow, 

 pilot projects, environmental management, and improved 



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