January To April Distribution Of The Common Shrimp On The South Atlantic Continental Shelf

Author : William W. Anderson
Publisher : Forgotten Books
ISBN 13 : 9780259103196
Total Pages : 24 pages
Book Rating : 4.1/5 (31 download)

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Download or read book January to April Distribution of the Common Shrimp on the South Atlantic Continental Shelf (Classic Reprint) written by William W. Anderson and published by Forgotten Books. This book was released on 2017-04-18 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from January to April Distribution of the Common Shrimp on the South Atlantic Continental Shelf Work was conducted from the Service's M/V Pelican, a 75 -foot vessel equipped with a level-winding trawling winch and 5, 000 feet of l/2 -inch steel cable operated over a roller on the center stern of the vessel. Trawling was possible in depths up to 200 fathoms, but few hauls were made in depths greater than 100 fathoms. A small winch on the vessel's bow was employed for handling Nansen bottles, bottom grabs and sounding gear. Since the activities were exploratory, a lo-foot tryvnet, in reality a small otter trawl, was used ex clusively. The try - net is commonly used by commercial. Fishermen to locate concen trations of shrimp before setting the larger nets. It operates in the same manner as commercial trawls and proved to be an effective device for sampling an area in previous surveys of the Gulf Coast con ducted by the same vessel and crew. Fail ure to catch shrimp is therefore interpreted with confidence as indicating the absence of shrimp. 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.