Distribution Of Spawning Pink Salmon In Sashin Creek Southeastern Alaska And Survival Of Their Progeny
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Distribution Of Spawning Pink Salmon In Sashin Creek Southeastern Alaska And Survival Of Their Progeny
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Author : William J. McNeil
language : en
Publisher:
Release Date : 1966
Distribution Of Spawning Pink Salmon In Sashin Creek Southeastern Alaska And Survival Of Their Progeny written by William J. McNeil and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Fishes categories.
Distribution Of Spawning Pink Salmon In Sashin Creek Southeastern Alaska And Survival Of Their Progeny Classic Reprint
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Author : William J. Mcneil
language : en
Publisher: Forgotten Books
Release Date : 2018-02-21
Distribution Of Spawning Pink Salmon In Sashin Creek Southeastern Alaska And Survival Of Their Progeny Classic Reprint written by William J. Mcneil and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-21 with Business & Economics categories.
Excerpt from Distribution of Spawning Pink Salmon in Sashin Creek, Southeastern Alaska, and Survival of Their Progeny Although the upper area was highly productive of pink salmon fry, it has had intensive spawning only in years when the density of spawners was high. When the density was low, spawners tended to concentrate in the lower area. The validity of the supposition that only highly productive spawning beds are used when escapements are small is questioned. The observations at Sashin Creek indicate that relatively large escapements help ensure complete use of productive spawning beds. 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.
Transplanting Adult Pink Salmon To Sashin Creek Baranof Island Alaska And Survival Of Their Progeny
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Author : William J. McNeil
language : en
Publisher:
Release Date : 1969
Transplanting Adult Pink Salmon To Sashin Creek Baranof Island Alaska And Survival Of Their Progeny written by William J. McNeil and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Baranof Island (Alaska) categories.
Return And Behavior Of Adults Of The First Filial Generation Of Transplanted Pink Salmon And Survival Of Their Progeny Sashin Creek Baranof Island Alaska
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Author : Robert J. Ellis
language : en
Publisher:
Release Date : 1969
Return And Behavior Of Adults Of The First Filial Generation Of Transplanted Pink Salmon And Survival Of Their Progeny Sashin Creek Baranof Island Alaska written by Robert J. Ellis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Baranof Island (Alaska) categories.
Special Scientific Report
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Author :
language : en
Publisher:
Release Date : 1970
Special Scientific Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Fisheries categories.
Pacific Salmon Life Histories
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Author : Cornelis Groot
language : en
Publisher: UBC Press
Release Date : 1991
Pacific Salmon Life Histories written by Cornelis Groot and has been published by UBC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Nature categories.
Pacific salmon are an important biological and economic resource of countries of the North Pacific rim. They are also a unique group of fish possessing unusually complex life histories. There are seven species of Pacific salmon, five occurring on both the North American and Asian continents (sockeye, pink, chum, chinook, and coho) and two (masu and amago) only in Asia. The life cycle of the Pacific salmon begins in the autumn when the adult female deposits eggs that are fertilized in gravel beds in rivers or lakes. The young emerge from the gravel the following spring and will either migrate immediately to salt water or spend one or more years in a river or lake before migrating. Migrations in the ocean are extensive during the feeding and growing phase, covering thousands of kilometres. After one or more years the maturing adults find their way back to their home river, returning to their ancestral breeding grounds to spawn. They die after spawning and the eggs in the gravel signify a new cycle. Upon this theme Pacific salmon have developed many variations, both between as well as within species. Pacific Salmon Life Histories provides detailed descriptions of the different life phases through which each of the seven species passes. Each chapter is written by a scientist who has spent years studying and observing a particular species of salmon. Some of the topics covered are geographic distribution, transplants, freshwater life, ocean life, development, growth, feeding, diet, migration, and spawning behaviour. The text is richly supplemented by numerous maps, illustrations, colour plates, and tables and there is a detailed general index, as well as a useful geographical index.
The Forest Ecosystem Of Southeast Alaska
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Author :
language : en
Publisher:
Release Date : 1974
The Forest Ecosystem Of Southeast Alaska written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Forest ecology categories.
The Forest Ecosystem Of Southeast Alaska
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Author : William R. Meehan
language : en
Publisher:
Release Date : 1974
The Forest Ecosystem Of Southeast Alaska written by William R. Meehan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Fishes categories.
Hydrological Conditions In Clear Lake Texas 1958 66
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Author : Edward J. Pullen
language : en
Publisher:
Release Date : 1969
Hydrological Conditions In Clear Lake Texas 1958 66 written by Edward J. Pullen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Estuaries categories.
Yakima River Basin And Canyon Ferry
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Author : United States. Congress. House. Committee on Natural Resources. Subcommittee on Oversight and Investigations
language : en
Publisher:
Release Date : 1994
Yakima River Basin And Canyon Ferry written by United States. Congress. House. Committee on Natural Resources. Subcommittee on Oversight and Investigations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Law categories.