Author: Jeffrey M. LevengoodPublisher: Baltic University Press
ISBN: 9186189123
Category : Business & Economics
Languages : en
Pages : 384
Book Description
Ecology and Animal Health
Author: Jeffrey M. LevengoodPublisher: Baltic University Press
ISBN: 9186189123
Category : Business & Economics
Languages : en
Pages : 384
Book Description
Issues in Global Environment: Freshwater and Marine Environments: 2011 Edition
Author: Publisher: ScholarlyEditions
ISBN: 146496467X
Category : Science
Languages : en
Pages : 1320
Book Description
Issues in Global Environment: Freshwater and Marine Environments: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Global Environment—Freshwater and Marine Environments. The editors have built Issues in Global Environment: Freshwater and Marine Environments: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Global Environment—Freshwater and Marine Environments in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Global Environment: Freshwater and Marine Environments: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Pacific Salmon Life Histories
Author: Cornelis GrootPublisher: UBC Press
ISBN: 9780774803595
Category : Nature
Languages : en
Pages : 602
Book Description
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.
Microevolution Rate, Pattern, Process
Author: Andrew P. HendryPublisher: Springer Science & Business Media
ISBN: 9401005850
Category : Science
Languages : en
Pages : 528
Book Description
From guppies to Galapagos finches and from adaptive landscapes to haldanes, this compilation of contributed works provides reviews, perspectives, theoretical models, statistical developments, and empirical demonstrations exploring the tempo and mode of microevolution on contemporary to geological time scales. New developments, and reviews, of classic and novel empirical systems demonstrate the strength and diversity of evolutionary processes producing biodiversity within species. Perspectives and theoretical insights expand these empirical observations to explore patterns and mechanisms of microevolution, methods for its quantification, and implications for the evolution of biodiversity on other scales. This diverse assemblage of manuscripts is aimed at professionals, graduate students, and advanced undergraduates who desire a timely synthesis of current knowledge, an illustration of exciting new directions, and a springboard for future investigations in the study of microevolution in the wild.
Canadian Journal of Zoology
Author: Introduction of Pacific Salmonids Into the Delaware River Watershed
Author: Publisher:
ISBN:
Category : Chinook salmon fisheries
Languages : en
Pages : 338
Book Description
The Behavior and Ecology of Pacific Salmon and Trout
Author: Thomas P. QuinnPublisher: UBC Press
ISBN: 0774842431
Category : Nature
Languages : en
Pages : 392
Book Description
The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.
The Muskellunge Symposium: A Memorial Tribute to E.J. Crossman
Author: James S. DianaPublisher: Springer Science & Business Media
ISBN: 1402060491
Category : Science
Languages : en
Pages : 201
Book Description
This book documents proceedings of a symposium on muskellunge developed as a memorial for E.J. Crossman. It focuses on the biology, ecology, and management of muskellunge, Ed’s favorite fish. The papers include surveys of current ecological, behavioral, and management-related issues for muskellunge fisheries. The symposium was developed to bring researchers and anglers together, and was sponsored by Muskies, Inc.
Author: 
Author: