Author : United States Fish Commission
Publisher : Forgotten Books
ISBN 13 : 9780484705462
Total Pages : 556 pages
Book Rating : 4.7/5 (54 download)
Book Synopsis Bulletin of the United States Bureau of Fisheries, 1928, Vol. 44 (Classic Reprint) by : United States Fish Commission
Download or read book Bulletin of the United States Bureau of Fisheries, 1928, Vol. 44 (Classic Reprint) written by United States Fish Commission and published by Forgotten Books. This book was released on 2017-12-25 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Bulletin of the United States Bureau of Fisheries, 1928, Vol. 44 It has been observed, also, by a number of investigators that there ex1sts a definite relation between the temperature of Water and the B. Colt score in the Oysters. Gorham Pease and Gage and Go'rham (1925) have shown that in winter the bacterial content Of oysters taken from polluted waters is abnormally low. Discussing this phenomenon, ' the investigators attributed it to the slowing down of biological activity of the oyster as a result of a reduction of temperature and came to the conclusion that with the' decrease in temperature the oyster passes into a State of hibernation. Round working on the bacteriology of oysters, came to the Conclusion that Oysters close their shells for varying periods of time, depending on temperature. 'according to his Opinion the opening and closing of the shell 18 controlled by the rapidity of metabolic processes, which in turn are controlled by temperature. He failed to support this statement with the experimental data, however. Cumming (1916) has shown that January and February were the months when the B. Colt content of water taken at the mouths of rivers was highest and the Iowest for oysters taken from the same locality. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.