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An investigation, testing and modifying of gear to harvest oysters and shell : final contract report for the period 1 July, 1973 through 30 June, 1975
Haven, Dexter S. Whitcomb, James P.
Haven, Dexter S.
Whitcomb, James P.
Abstract
During the 1974-75 contract period the hydraulic escalator was modified and tested in the York and Rappahannock Rive r s . The tests showed that the harvester was capable of raising large quantities of oysters from various types of bottoms. Moreover, these oysters were not broken or crushed, were free .of silt or grit , and t he apparatus caused only minima l damage to the bottom . The modification were made from January to April and field testing began in May 1975 in t he York and Rappahannock Rivers on public and leased bottom and on several types of substrate . The device was demonstrated for oyster growers , television companies, the press, representatives of the Virginia Marine Resources Commission, the Maryland Department of Tidewater Fisheries and a representative of the National Marine Fisheries Service. A total of 16 trials or demonstrations were completed which are listed in detail chronologically i n the appendix.
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1975
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Research and Technical Reports, Oyster fisheries -- Virginia -- Equipment and supplies
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Virginia Institute of Marine Science