and 45 of the 55 pages of the report contain computer program 



listings and printouts, but the report does not contain a program 



documentation (flow diagrams, user guides, term definitions, 



etc. ) . 



Subject descriptors: 



Oysters; closed system culture; systems analysis; sensitivity 



analysis; costs; experiment. 



103 



Gibson, Gary G.; Lund, Dennis S. 



1973. 



A pilot economic study of oyster raft culture in Yaguina Bay, 



Oregon. 



Abstract only is in Proc. Natl. Shellfish Assoc. Convention, 



1972, vol. 73, p. 7. (Authors are with Fish Comm. Oreg. and 



Newport Oyster Co., Newport, Oreg.) 



Based on recorded costs for a single raft (12 ft by 20 ft), 



adjustment of capital costs for larger scale operation (addition 



cf costs f cr concrete anchors, piling, boom logs and harvesting 



eguipment) # and adjustment in the number of 6 ft strings of 



suspended Japanese oyster seed, gross revenue of $3.33, costs of 



$1.37 and net return of $1.96 per string were estimated. A price 



of $20 per bu (in-shell, cocktail-sized oysters, 100 meats per 



pint) and 206 strings per raft were assumed. 



Subject descriptors: 



Oysters; revenue; costs; returns; raft culture. 



104 



Gunter, Gordon; Demoran, William J. 



1971 . 



Mississippi oyster culture. 



Amer. Fish Farmer World Aquacult. News 2(5): 8-12. 



Oyster species, behavior, feeding, shell deposits, commercial 



production, human food nutritional qualities, and cultural 



methods are described. Leased beds are employed in Virginia and 



Louisiana, but not Mississippi and Texas, for example. An agency 



of Mississippi State can open and close oyster reefs, plant 



shells or seed, move oysters for purposes of depurif ication, and 



administer culling and harvest restrictions. The agency is 



credited with a fivefold increase in oyster output in 20 years, 



but its efforts are limited by funding, which is dependent on a 



severance tax. Data for 1960 to 197 are given on amounts of 



shell and seed planted, and oysters moved for depurif ication. 



Subject descriptors: 



Oysters; government assistance; public grounds; industry 



development. 



47 



