Success of Pink Salmon Spawning Relative to Size of Spawning Bed Materials
Language: English
Published by Forgotten Books, 2018
- Softcover
- New
Seller: Forgotten Books, London, United KingdomForgotten Books
AbeBooks seller since June 2, 2021
Condition: New
£ 13.31
Quantity: Over 20 available
Add to basketItem description from seller
Print on Demand. This book examines the relationship between the composition of the riverbed gravels in salmon spawning grounds and the successful hatching of salmon eggs and development of salmon larvae. The author describes methods for measuring the gravel composition, and presents a relationship between the volume of solids less than a certain minimum dimension and the permeability coefficient of stream bottom materials. This permeability is critical to the survival of eggs and larvae. The author compares gravel composition and permeability of spawning grounds that support varying densities of spawning salmon, demonstrating differences between productive and less productive spawning grounds. The author also discusses temporal changes in gravel composition associated with spawning, logging, and flooding. The findings have significant implications for understanding the factors that affect salmon populations and for managing salmon habitats. 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.…
Seller Inventory # 9781332818761_0
- Title
- Success of Pink Salmon Spawning Relative to Size of Spawning Bed Materials
- Author
- William J. McNeil, Warren H. Ahnell
- Publisher
- Forgotten Books
- Publication year
- 2018
- Condition
- New
- Book Type
- print-on-demand item
- Binding
- Paperback
- Language
- English
- ISBN 10
- 1332818765
- ISBN 13
- 9781332818761
- Seller catalogs
- General Engineering
Permeability of bottom materials is prob ably an important factor limiting fry production in spawning beds. It has been shown how permeability is related to size composition of bottom materials, and it is possible to compare relative permeability of spawning beds by determining average size composi tion. Hence, a simple and direct method of measuring physical properties of spawning beds pertaining directly to their capacity to produce fry has been provided through develop ing techniques for measuring size composi tion of bottom materials. Pronounced differences in size composition of bottom materials were observed among several pink salmon spawning streams. The more productive spawning streams had the highest permeability coefficients.
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Forgotten Books
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Forgotten Books’ Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the quality of the aged text.
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FB &c Ltd
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Forgotten Books publishes hundreds of thousands of rare and classic books.
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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