The Book The Life-History and Growth of the Pismo Clam, Vol. 7

The Life-History and Growth of the Pismo Clam, Vol. 7

Details Book

  • Autor: Frank W Weymouth
  • Editor: Forgotten Books
  • Relaese Date: 27 September 2015
  • ISBN: 1331943485
  • Format Book: PDF, Epub, DOCx, TXT, Audio, MOBI
  • Number of page: 128 pages
  • File Size: 58MB
  • Rating:


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Description The Life-History and Growth of the Pismo Clam, Vol. 7 de Frank W Weymouth:

Excerpt from The Life-History and Growth of the Pismo Clam, Vol. 7: Tivela Stultorum Mawe On the coast of California are found six or eight species of mollusks which are commercially important. Of these, the amounts marketed are shown in the following table, and to this considerable total must be added those used locally, regarding which no data are available, although the number, in some localities, is known to be large. These animals thus represent a valuable economic asset and there is good reason to believe that their importance can be materially increased. Yet of their life histories - the rate of growth, the age reached, the age of spawning, the productivity and many related problems - we know next to nothing. The introduced soft-shell (Mya) and the eastern oyster have been studied on the Atlantic coast- the native oyster is being investigated (Scofield, 1921: Stafford, 1913, 1918), but for the other native species there exists no body of known facts and only a few scattered observations. While making a survey of the edible bivalves of the State (Weymouth, 1921) this lack was so strikingly apparent that it was thought profitable to work out the life history of at least one important and representative species. The species chosen was the Pismo clam (Tivela stultorum). Commercially the Pismo clam ranks first in importance in California among the clams and third among all the mollusks, being exceeded only by the oyster and the abalone. 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. Details about the writer can not be identified or may be eradicated with the ask from the publisher. You could may be keen on various other guides because of the Frank W Weymouth. We were capable of obtain many of the almost all iformatsii available for you. For writers: site doesn't extend to public access your own training books on the internet pages merely preliminary details about the publication. If you believe that our site is definitely infringing, please email united states over it so if you're truly the author these ebooks, we're going to quickly remove web sites from the web site.

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