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Download Genetic Stock Composition Analysis Of The Chinook Salmon Oncorhynchus Tshawytscha Bycatch From The 2016 Bering Sea Walleye Pollock Gadus Chalcogrammus Trawl Fishery full books in PDF, epub, and Kindle. Read online Genetic Stock Composition Analysis Of The Chinook Salmon Oncorhynchus Tshawytscha Bycatch From The 2016 Bering Sea Walleye Pollock Gadus Chalcogrammus Trawl Fishery ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Author :
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fur Seal Investigations written by and published by . This book was released on 1969 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cornelis Groot
Publisher : UBC Press
ISBN 13 : 9780774803595
Total Pages : 602 pages
Book Rating : 4.8/5 (35 download)
Download or read book Pacific Salmon Life Histories written by Cornelis Groot and published by UBC Press. This book was released on 1991 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Alaska Geographic Society
Publisher : Graphic Arts Books
ISBN 13 : 0882401335
Total Pages : 93 pages
Book Rating : 4.8/5 (824 download)
Download or read book The Stikine River written by Alaska Geographic Society and published by Graphic Arts Books. This book was released on 1979-01-01 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alaska Geographic is an award-winning series that presents the people, places, and wonders of Alaska to the world. Over the past 30 years, Alaska Geographic has earned its reputation as the publication for those who love Alaska. The series boasts more than 100 books to date, featuring communities from Barrow to Ketchikan, animals from bears to dinosaurs, history from the Russian explorers to today, and natural phenomena from the aurora to glaciers. Written by leading experts in their fields, these books are illustrated throughout with world-class photography and include colorful maps for reference.
Author : Center for Drug Evaluation and Research (U.S.)
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.3/5 (91 download)
Download or read book Report to Industry written by Center for Drug Evaluation and Research (U.S.) and published by . This book was released on 1996 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Glynn Hulley
Publisher : Elsevier
ISBN 13 : 0128144599
Total Pages : 258 pages
Book Rating : 4.1/5 (281 download)
Download or read book Taking the Temperature of the Earth written by Glynn Hulley and published by Elsevier. This book was released on 2019-06-15 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking the Temperature of the Earth: Steps towards Integrated Understanding of Variability and Change presents an integrated, collaborative approach to observing and understanding various surface temperatures from a whole-Earth perspective. The book describes the progress in improving the quality of surface temperatures across different domains of the Earth's surface (air, land, sea, lakes and ice), assessing variability and long-term trends, and providing applications of surface temperature data to detect and better understand Earth system behavior. As cooperation is essential between scientific communities, whose focus on particular domains of Earth's surface and on different components of the observing system help to accelerate scientific understanding and multiply the benefits for society, this book bridges the gap between domains. - Includes sections on data validation and uncertainty, data availability and applications - Integrates remote sensing and in situ data sources - Presents a whole earth perspective on surface temperature datasets, delving into all domains to build and understand relationships between the datasets
Author : Stephen R. Carpenter
Publisher : Cambridge University Press
ISBN 13 : 9780521566841
Total Pages : 404 pages
Book Rating : 4.5/5 (668 download)
Download or read book The Trophic Cascade in Lakes written by Stephen R. Carpenter and published by Cambridge University Press. This book was released on 1996-07-13 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1993 book documents the importance of trophic cascades in aquatic ecology.
Author : Theodore W. Pietsch
Publisher : JHU Press
ISBN 13 : 1421432536
Total Pages : 619 pages
Book Rating : 4.4/5 (214 download)
Download or read book Frogfishes written by Theodore W. Pietsch and published by JHU Press. This book was released on 2020-03-03 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authoritative expert's guide to fascinating frogfishes and their unusual lives. Winner of the PROSE Award for Best Single Volume Reference in Science by the Association of American Publishers Unique among the world's fishes, frogfishes display a bizarre combination of attributes and behaviors that make them a subject of fervent study. Through cunning and trickery, they turn would-be predators into prey; they "walk" across the ocean floor and jet-propel through open water; some lay their eggs in a floating mucoid mass, while others employ complex patterns of parental care; and they are certainly among the most colorful of nature's productions. In Frogfishes, two of the world's leading anglerfish experts, Theodore W. Pietsch and Rachel J. Arnold, bring together an enormous amount of information about these incredible creatures. The only detailed exploration of frogfishes in print, the book touches on everything from their morphology and biomechanics to their diets and habitats. Enhanced with more than 500 spectacular color images, the book also includes • a thorough look at about 5,000 preserved specimens; • an annotated synonymy for all extant taxa, as well as keys and tables to facilitate identification; • insights into frogfish feeding, locomotion, mimicry, and reproductive behavior; • descriptions of recent scientific advances, including the discovery of new species, shifts in geographic distribution, and emerging DNA sequencing techniques; and • tips for frogfish-seeking divers and aquarists that emphasize conservation. Unmasking the mysteries of frogfish evolution and phylogenetic relationships through close examination of their fossil record, morphology, and molecular reconstruction, Frogfishes demonstrates the surprising diversity and beauty of this remarkable assemblage of marine shorefishes.
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309182409
Total Pages : 180 pages
Book Rating : 4.3/5 (91 download)
Download or read book The Oil Spill Recovery Institute written by National Research Council and published by National Academies Press. This book was released on 2003-03-17 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of the 1989 Exxon Valdez Oil Spill in Prince William Sound, Congress passed the Oil Pollution Act of 1990 (OPA 90), and within that legislation, the Oil Spill Recovery Institute (OSRI) was born. This report assesses the strength and weaknesses of this research program, with emphasis on whether the activities supported to date address the OSRI mission, whether the processes used are sound, and whether the research and technology development projects are of high quality
Author : Theodore W. Pietsch
Publisher :
ISBN 13 : 9780295743745
Total Pages : 0 pages
Book Rating : 4.7/5 (437 download)
Download or read book Fishes of the Salish Sea written by Theodore W. Pietsch and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fishes of the Salish Sea is the definitive guide to the identification and history of the marine and anadromous fishes of Puget Sound and the Straits of Georgia and Juan de Fuca. This comprehensive three-volume set, featuring striking illustrations of the Salish Sea's 260 fish species by noted illustrator Joseph Tomelleri, details the ecology and life history of each species and recounts the region's rich heritage of marine research and exploration. Beginning with jawless hagfishes and lampreys and ending with the distinctive Ocean Sunfish, leading scientists Theodore Wells Pietsch and James Orr present the taxa in phylogenetic order, based on classifications that reflect the most current scientific knowledge. Illustrated taxonomic keys facilitate fast and accurate species identification. These in-depth, thoroughly documented, and yet accessible volumes will prove invaluable to marine biologists and ecologists, natural resource managers, anglers, divers, students, and all who want to learn about, marvel over, and preserve the vibrant diversity of Salish Sea marine life. Comprehensive accounts of 260 fish species Brilliant color plates of all treated species Illustrated taxonomic keys for easy species identification In-depth history of Salish Sea research and exploration
Author : Steven K. Thompson
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.3/5 (91 download)
Download or read book Adaptive Sampling written by Steven K. Thompson and published by Wiley-Interscience. This book was released on 1996-06-07 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a viable solution to the long-standing problem of estimating the abundance of rare, clustered populations, adaptive sampling designs are rapidly gaining prominence in the natural and social sciences as well as in other fields with inherently difficult sampling situations. In marked contrast to conventional sampling designs, in which the entire sample of units to be observed is fixed prior to the survey, adaptive sampling strategies allow for increased sampling intensity depending upon observations made during the survey. For example, in a survey to assess the abundance of a rare animal species, neighboring sites may be added to the sample whenever the species is encountered during the survey. In an epidemiological survey of a contagious or genetically linked disease, sampling intensity may be increased whenever prevalence of the disease is encountered. Written by two acknowledged experts in this emerging field, this book offers researchers their first comprehensive introduction to adaptive sampling. An ideal reference for statisticians conducting research in survey designs and spatial statistics as well as researchers working in the environmental, ecological, public health, and biomedical sciences. Adaptive Sampling: Provides a comprehensive, fully integrated introduction to adaptive sampling theory and practice Describes recent research findings Introduces readers to a wide range of adaptive sampling strategies and techniques Includes numerous real-world examples from environmental pollution studies, surveys of rare animal and plant species, studies of contagious diseases, marketing surveys, mineral and fossil-fuel assessments, and more
Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (319 download)
Download or read book US Exclusive Economic Zone (EEZ). written by and published by . This book was released on 1983 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gabriella Bianchi
Publisher : CABI
ISBN 13 : 1845934148
Total Pages : 377 pages
Book Rating : 4.8/5 (459 download)
Download or read book The Ecosystem Approach to Fisheries written by Gabriella Bianchi and published by CABI. This book was released on 2008 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Sustainable use of aquatic ecosystems is high on regional, national and international agendas and central to the implementation of international agreements on biological diversity, responsible fisheries and fish stock management. Since 2001, when political commitments were made to implement the ecosystem approach, countries have begun to incorporate ecosystem considerations into their fisheries management and have met with varied success." "The Ecosystem Approach to Fisheries covers both theoretical andapplied aspects of sustainable management, with a particular emphasis on reviewing concepts and addressing implementation issues in the form of case studies from around the world. Personal experiences are considered from diverse backgrounds and discuss the constraints encountered, strategies identified and best practices to facilitate further implementation."--BOOK JACKET.
Author : National Research Council Canada
Publisher : NRC Research Press
ISBN 13 : 9780660157801
Total Pages : 756 pages
Book Rating : 4.1/5 (578 download)
Download or read book Climate Change and Northern Fish Populations written by National Research Council Canada and published by NRC Research Press. This book was released on 1995 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
Author : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Oceans and Fisheries
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (51 download)
Download or read book Reauthorization of the Magnuson-Stevens Fishery Conservation and Management Act written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Oceans and Fisheries and published by . This book was released on 2003 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : I. L. Boyd
Publisher :
ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (318 download)
Download or read book Steller Sea Lion Research written by I. L. Boyd and published by . This book was released on 1995 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Carl J. Walters
Publisher : Princeton University Press
ISBN 13 : 0691214638
Total Pages : 424 pages
Book Rating : 4.6/5 (912 download)
Download or read book Fisheries Ecology and Management written by Carl J. Walters and published by Princeton University Press. This book was released on 2020-06-30 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative modeling methods have become a central tool in the management of harvested fish populations. This book examines how these modeling methods work, why they sometimes fail, and how they might be improved by incorporating larger ecological interactions. Fisheries Ecology and Management provides a broad introduction to the concepts and quantitative models needed to successfully manage fisheries. Walters and Martell develop models that account for key ecological dynamics such as trophic interactions, food webs, multi-species dynamics, risk-avoidance behavior, habitat selection and density-dependence. They treat fisheries policy development as a two-stage process, first identifying strategies for varying harvest in relation to changes in abundance, then finding ways to implement such strategies in terms of monitoring and regulatory procedures. This book provides a general framework for developing assessment models in terms of state-observation dynamics hypotheses, and points out that most fisheries assessment failures have been due to inappropriate observation model hypotheses rather than faulty models for ecological dynamics. Intended as a text in upper division and graduate classes on fisheries assessment and management, this useful guide will also be widely read by ecologists and fisheries scientists.
Author : Jim Lichatowich
Publisher :
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.3/5 (5 download)
Download or read book Salmon Without Rivers written by Jim Lichatowich and published by . This book was released on 1999-08 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fundamentally, the salmon's decline has been the consequence of a vision based on flawed assumptions and unchallenged myths.... We assumed we could control the biological productivity of salmon and 'improve' upon natural processes that we didn't even try to understand. We assumed we could have salmon without rivers." --from the introduction From a mountain top where an eagle carries a salmon carcass to feed its young to the distant oceanic waters of the California current and the Alaskan Gyre, salmon have penetrated the Northwest to an extent unmatched by any other animal. Since the turn of the twentieth century, the natural productivity of salmon in Oregon, Washington, California, and Idaho has declined by eighty percent. The decline of Pacific salmon to the brink of extinction is a clear sign of serious problems in the region. In Salmon Without Rivers, fisheries biologist Jim Lichatowich offers an eye-opening look at the roots and evolution of the salmon crisis in the Pacific Northwest. He describes the multitude of factors over the past century and a half that have led to the salmon's decline, and examines in depth the abject failure of restoration efforts that have focused almost exclusively on hatcheries to return salmon stocks to healthy levels without addressing the underlying causes of the decline. The book: describes the evolutionary history of the salmon along with the geologic history of the Pacific Northwest over the past 40 million years considers the indigenous cultures of the region, and the emergence of salmon-based economies that survived for thousands of years examines the rapid transformation of the region following the arrival of Europeans presents the history of efforts to protect and restore the salmon offers a critical assessment of why restoration efforts have failed Throughout, Lichatowich argues that the dominant worldview of our society -- a worldview that denies connections between humans and the natural world -- has created the conflict and controversy that characterize the recent history of salmon; unless that worldview is challenged and changed, there is little hope for recovery. Salmon Without Rivers exposes the myths that have guided recent human-salmon interactions. It clearly explains the difficult choices facing the citizens of the region, and provides unique insight into one of the most tragic chapters in our nation's environmental history.
