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Description: |
28 pages : illustrations ; 23 cm |
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General Note: |
At head of title: U.S. Department of the Interior, Fish and Wildlife Service. |
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Bibliography Note: |
Includes bibliographical references (pages 27-28). |
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Contents: Reaction of oysters to stimulation. |
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Summary, Etc. Note: |
Abstract: Reaction of oysters to free chlorine was studied by recording shell movement, measuring the rate of water through the gills, and determining the beat frequency of the lateral cilia of the gills. Live oysters are sensitve to intital treatment with chlorine concentration of 0.01-0.2 parts per million. Great variation in tolerance, observed in the experiments, is associated with the stimulation by chlorine of mucus secretion which acts as a protective coating of tissues. Experiments indicate that effective self-purification of oysters can be attained if their normal shell movements and pumping are not inhibited by free chlorine and the later is only used for disinfecting the shells and sea water. |
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Additional Physical Forms: |
Online version: Galtsoff, Paul S. (Paul Simon), b. 1887. Reaction of oysters to chlorination. Washington : U.S.G.P.O., 1946 (OCoLC)798506908 |