A New Freezing Technique for Sampling Salmonid Redds (Classic Reprint) - Couverture souple

Platts, William S.

9781527911932: A New Freezing Technique for Sampling Salmonid Redds (Classic Reprint)

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ISBN 10 : 1527911934 ISBN 13 : 9781527911932

Editeur : Forgotten Books, 2019

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Excerpt from A New Freezing Technique for Sampling Salmonid Redds

The new method, as does the methods used by Walkotten (1976) and Lotspeich and Reid (in press) allows collection of the eggs and alevins in the redd at any stage of development, will function at any air or water temperature or stream depth, and will determine the horizontal and vertical location of the eggs and alevins. The new system uses C02 more efficiently and alleviates problems of clogging from dry ice. The method will take a sample of any size that can be lifted and transported and will allow the complete redd or selected parts of the redd to be yzed in the laboratory in a near natural condition. The method has the potential for improving our estimates of embryo and alevin survival rates and identifying causes of their mortality.

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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.

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�diteur: Forgotten Books
Date d'�dition: 2019
Langue: anglais
ISBN 10: 1527911934
ISBN 13: 9781527911932
Reliure: Broch�
Nombre de pages: 36
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A New Freezing Technique for Sampling Salmonid Redds (Classic Reprint)

William S. Platts, Vance E. Penton

Edit� par Forgotten Books, 2024

ISBN 10 : 1527911934 ISBN 13 : 9781527911932

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Vendeur : Forgotten Books, London, Royaume-Uni

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Paperback. Etat : New. Print on Demand. This book delves into the development of a new method for assessing the distribution of particle sizes within salmonid spawning grounds to study how environmental factors affect embryo and alevin survival rates. The new method utilizes carbon dioxide in a liquid-gas phase to freeze streambed sediment, allowing for the collection of samples in various conditions. This innovative approach offers advantages over existing methods by reducing sample biases, collecting larger and more uniform samples, and increasing the efficiency of carbon dioxide usage. The book provides a detailed description of the new method, including equipment lists, materials, and step-by-step instructions, making it a valuable resource for researchers and practitioners in the field of fisheries science. The insights gained from this method contribute to a better understanding of the factors influencing salmonid reproduction and survival, ultimately aiding in the conservation and management of these important fish populations. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. N� de r�f. du vendeur 9781527911932_0

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