collection of gravid mother shrimp, the hatching of young shrimp 

 fcorn eggs spawned by the mother shrimp (using Japanese-derived 

 hatching techniques), the cultivation of the hatched shrimp in 

 open water through the Company's proprietary technology and the 

 harvesting and sale of the cultivated shrimp." 

 Subject descriptors: 



Shrimp; investment; techniques; R&D role; markets; outlook; 

 general description; financing. 



123 



Avault, James W., Jr. 



1972. 



Crayfish farming in the United States. 



Paper presented at the First . International Symposium on 



Freshwater Crayfish, Sept. 12 to 15, 1972, Hinterthal, Salzburger 



Land, Austria. La. State Univ., Cent. Wetland Resour . , Sea Grant 



Preprint No. 897, 23 pp. 



Topics include species, biology, farming, and other items. The 



industry is primarily centered in Louisiana, with live-weigiit 



output of over 10 million pounds annually, valued at $5 million. 



Until recently this came mostly from wild stocks. Rice-field 



ponds, wooded ponds, and open ponds are used in farming, and 



cultural practices are essentially similar. The crop is 



harvested about 1 year after the brood fish are stocked, and lift 



nets and funnel traps of chicken wire are used, as for the wild 



harvest. Professional crayf ishermen are employed by farmers for 



harvesting with compensation of half the value of the live 



crayfish at the market. Productivity ranges generally from 200 



to 800 pounds per acre. Early season farm-raised crayfish bring 



over 60 cents per pound, but the price declines as the wild crop 



enters the market, and price averages about 25 cents per pound. 



At 15 cents per pound, the crayf ishermen find it is not worth 



their while to continue trapping. Pond acreage is increasing in 



Louisiana. There were 12,000 acres in 1969, 25,000 in 1970, and 



40,000 in 1971. 



Subject descriptors: 



Crayfish; crawfish; development; prices; techniques; biology; 



cutlook. 



124 



Avault, James W., Jr.; de la Bretonne, Larry W., Jr.; Jaspers, 



Edmonde J. 



1970. 



Culture of the crawfish, Louisiana's crustacean king. 



Amer. Fish Farmer World Aquacult. News 1(10): 8-14, 27. 



Crawfish (crayfish) biology, behavior, production, cultural 



techniques, market potential for food and bait ("soft craws"), 



and studies are discussed. Crawfish are being reared in three 



types of ponds: rice ponds, wooded ponds, and open ponds. 



Cultural practices are essentially similar in all ponds. Yields 



range from about 200 to 800 pounds per acre generally. Louisiana 



56 



