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Report of the Danish Biological Station Volume 12-20

Report of the Danish Biological Station Volume 12-20

Report of the Danish Biological Station Volume 12-20. U S Government

Report of the Danish Biological Station Volume 12-20
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Author: U S Government
Number of Pages: 166 pages
Published Date: 05 May 2014
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
Type: Pdf
ISBN: 9781234195571
Download Link: Report of the Danish Biological Station Volume 12-20
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1905 edition. Excerpt: ... my First Report ou the oysters and oyster fisheries in the Lim Fjord, Report XV for the year 1907, it was explained that many oysters in the Lim Fjord could not reach the standard size 8x3 cm. fixed by the Government; that this should therefore be reduced and that the fishery should be carried on more energetically on the whole than was at present the case, as far too many oysters died of old age without being of use to anybody. To be able to give definite figures for the further elucidation of these questions, I undertook a series of investigations in 1907 ou the stock of oysters in the Lim Fjord at a number of different places. These investigations might easily have been carried out on a larger scale and with larger quantities of oysters, but I believe that what has been done is sufficient, on the one hand to throw light on many points where such was very necessary and on the other to provide a comprehensive view over many points where such was advisable. The investigations have been specially directed to determine, how large the oysters were which were taken by means of the pole-dredge, the dredge and diving respectively on the different banks, thus in other words, how large the oysters were which were growing at the different places; secondly, how the present standard 8x3 cm. and the standard proposed by myself, which is 1 cm. smaller (7x3 cm.), suited these oysters. Further, it appeared during these investigations that diving enabled a good estimate to be made as to how many millions of oysters were living in the fjord at the moment. Such diving investigations were therefore carried out. Lastly, various other investigations of biological interest were undertaken, amongst these marking of oysters. Table I shows the length...

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