water outfall of a new steam electric generating plant. Results showed that growth was 

 lower near the plant than those farther removed. Mortality wa.s low and normal for all 

 stations. 



Maryland 3-29-R Donald Pritchard Completed 1967 



Stiidies of the physical processes of movement and dispersion of oyster larvae - The major 

 effort of this study was directed toward analysis of the data derived from earlier attempts 

 to use a tracer fluorescent dye to simulate the movement and spread of oyster larvae, and 

 to use this analysis in the design of a field study. The area chosen for the field study 

 was the Manokin River estuary. 



Maryland 3-75-R Fred Sieling $/^2,100 



Development of disease-resistant oysters (C. Virginica) under field conditions in lower 

 Chesapeake Bay - Oysters on natural bars in the Manokin River are sampled to obtain basic 

 data on year class abundance, amount of cultch material, fouling organisms, and predators 

 present. The level of MSX incidence is studied throughout the study area and selected samples 

 are examined at the BCF laboratory, Oxford. Spat from disease-resistant brood stock are used 

 to repopulate areas where heavy mortalities have occurred. 



Mississippi ,2-28-R David Cook $37,800 



A study of coliform bacteria and Escherichia coli on polluted and unpolluted oyster bottoms 

 of Mississippi and a study of depuration by rebedding - Bacteriological analyses are made 

 routinely of selected areas in Mississippi Sound to determine their sanitary quality. As 

 suitable locations are found, oysters from polluted areas are moved into the area to define 

 the le'ngth.of time required for depuration. Studies are also made of the survival rate of 

 coliform bacteria in the estuarine waters and muds. 



New Hampshire 3-32-R William Ayer $25,200 



An investigation of the possibility of seed oyster production in Great Bay. New Hampshire - 

 Population estimates are being made in selected areas of Great Bay by SCUBA divers. Life 

 history studies are underway to define the time of spawning, survival, and growth. 

 Spat obtained from the BCF laboratory, Milford, have shown excellent growth. Environmental 

 conditions are also being observed. 



New Jersey 3-1-D Christopher Riley $119,140 



Shell planting program Maurice River Cove (Delaware Bay) and Mullica River (Atlantic Coast ) - 



Oyster shells to serve as cultch have been planted on selected beds in the Delaware Bay and 

 Mullica River. Over two million bushels of shells have been planted to enlarge and rehabili- 

 tate seven beds in Delaware Bay and the Mullica River. 



New Jersey 3-3-R Harold Haskin $50,000 



Disease resistant oyster program - Delaware Bay - This project is a continuing study to 

 provide basic knowledge for consistent production of a disease-resistant stock of oyster seed 

 and to increase the yield of marketable oysters from such seed through control of various 

 causes of mortality. These objectives are being approached by experimental testing of 

 disease resistance in the field, experimental approach to control predators, use of 

 lower Delaware Bay spat as seed oysters, and artificial rearing of disease-resistant 

 strains of oysters at the Cape Shore Laboratory. 



New York 3-63-R Arthur Brand, III $30,4-20 



Pond culture of oyster seed in a controlled natural environment - Oyster Pond, in East 

 Hampton, Long Island, is the center of this study. Samples on a semiweekly basis are col- 

 lected and analyzed to determine the biological, physical, and chemical characteristics 

 of the pond. Data on intensity of spawning, setting, and survival are also obtained from spat 

 set on hard bottom areas and rafts. 



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