Download or read book Status of Pacific Salmon and Their Role in North Pacific Marine Ecosystems written by Richard Beamish and published by . This book was released on 2007 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Charrs written by E.K. Balon and published by Springer. This book was released on 1980-04-30 with total page 948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endocrine Disruption in Fish written by David E. Kime and published by Springer Science & Business Media. This book was released on 1998-10-31 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last half-century has shown a dramatic increase in the standard of living of millions of people in Europe, North America and many parts of the Third World. This has, in many ways been brought about by scientific and technical developments which were initiated in the 1940s and 1950s. Promises were then made that nuclear energy would provide electricity so cheap that it would not need metering, pesticides would end malnutrition throughout the world and plastics and other synthetic chemicals would revolutionise our manufacturing industry and our way of life. Whilst some of these promises have been fulfilled, the problems of long-term health risks to humans and wildlife arising from the use, production and disposal of these products were either unknown or deliberately understated. Nuclear power is rendered economically unviable when the real cost of decommissioning and storage of waste for several millenia is included, and the effects on health of both humans and wildlife of early pest eradication programmes with organochlorine pesticides were well documented in Rachel Carson's "Silent Spring". Evidence of the effects of aerosols and refrigerants on depletion of the ozone layer has led to restriction on the use of CFCs, and there is now increasing evidence of climate change resulting from our profligate use of fossil fuels.
Download or read book North Pacific Temperate Rainforests written by Gordon H. Orians and published by University of Washington Press. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The North Pacific temperate rainforest, stretching from southern Alaska to northern California, is the largest temperate rainforest on earth. This book provides a multidisciplinary overview of key issues important for the management and conservation of the northern portion of this rainforest, located in northern British Columbia and southeastern Alaska. This region encompasses thousands of islands and millions of acres of relatively pristine rainforest, providing an opportunity to compare the ecological functioning of a largely intact forest ecosystem with the highly modified ecosystems that typify most of the world's temperate zone. The book examines the basic processes that drive the dynamic behavior of such ecosystems and considers how managers can use that knowledge to sustainably manage the rainforest and balance ecosystem integrity with human use. Together, the contributors offer a broad understanding of the challenges and opportunities faced by scientists, managers, and conservationists in the northern portion of the North Pacific rainforest that will be of interest to conservation practitioners seeking to balance economic sustainability and biodiversity conservation across the globe. Gordon Orians is professor emeritus of biology at the University of Washington. John Schoen is a senior science advisor at Audubon Alaska. Other contributors include Paul Alaback, Bill Beese, Frances Biles, Todd Brinkman, Joe Cook, Lisa Crone, Dave D'Amore, Rick Edwards, Jerry Franklin, Ken Lertzman, Stephen MacDonald, Andy MacKinnon, Bruce Marcot, Joe Mehrkens, Eric Norberg, Gregory Nowacki, Dave Person, and Sari Saunders.
Download or read book Abundance of the Sockeye Salmon Escapement in the Alsek River Drainage 2004 written by and published by . This book was released on 2005 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Management Issues Options written by and published by Dr Sunil Karve. This book was released on with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Early History and Seaward Migration of Chinook Salmon in the Columbia and Sacramento Rivers written by Willis Horton Rich and published by . This book was released on 1920 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interim Synthesis Report written by and published by . This book was released on 1978 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines consequences of outer continental shelf petroleum development in light of current knowledge. Cover title: Environmental assessment of the Alaskan continental shelf.
Download or read book Stratigraphic Framework of the Alaska Peninsula written by Robert L. Detterman and published by . This book was released on 1996 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Systematic Parasitology written by Dr. Sheila Willmott and published by Springer. This book was released on 1981-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migration on the Move written by Carolus Grütters and published by BRILL. This book was released on 2017-07-03 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: Migration on the Move examines the dynamics of migration and asylum law over the past two decades and highlights profound changes that have taken place in these fields as a result of growing EU competences to deal with migration and asylum questions. The book maps the transformation of the migration field by focusing on three interrelated issues: the effects of Europeanization and the shifting power relations that it implies; placing Europe’s laws and policies in a global migration context, and critically examining to whom ‘project’ Europe belongs. The contributors offer a multidisciplinary analysis of key aspects of the migration and refugee crisis and their implications for policies, principles of law, and the treatment of people in Europe today.
Download or read book From the Yenisei to the Yukon written by Ted Goebel and published by Texas A&M University Press. This book was released on 2011-04-01 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: Who were the first people who came to the land bridge joining northeastern Asia to Alaska and the northwest of North America? Where did they come from? How did they organize technology, especially in the context of settlement behavior? During the Pleistocene era, the people now known as Beringians dispersed across the varied landscapes of late-glacial northeast Asia and northwest North America. The twenty chapters gathered in this volume explore, in addition to the questions posed above, how Beringians adapted in response to climate and environmental changes. They share a focus on the significance of the modern-human inhabitants of the region. By examining and analyzing lithic artifacts, geoarchaeological evidence, zooarchaeological data, and archaeological features, these studies offer important interpretations of the variability to be found in the early material culture the first Beringians. The scholars contributing to this work consider the region from Lake Baikal in the west to southern British Columbia in the east. Through a technological-organization approach, this volume permits investigation of the evolutionary process of adaptation as well as the historical processes of migration and cultural transmission. The result is a closer understanding of how humans adapted to the diverse and unique conditions of the late Pleistocene.
Download or read book Paleoecology of Beringia written by David M. Hopkins and published by Elsevier. This book was released on 2013-09-17 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleoecology of Beringia is the product of a symposium organized by its editors, sponsored by the Wenner-Gren Foundation for Anthropological Research, and held at the foundation's conference center in Burg Wartenstein, Austria, 8-17 June 1979. The focus of this volume is on the paradox central to all studies of the unglaciated Arctic during the last Ice Age: that vertebrate fossils indicate that from 45,000 to 11,000 years BP an environment considerably more diverse and productive than the present one existed, whereas the botanical record, where it is not silent, supports a far more conservative appraisal of the region's ability to sustain any but the sparsest forms of plant and animal life. The volume is organized into seven parts. Part 1 focuses on the paleogeography of the Beringia. The studies in Part 2 explore the ancient vegatation. Part 3 deals with the steppe-tundra concept and its application in Beringia. Part 4 examines the paleoclimate while Part 5 is devoted to the biology of surviving relatives of the Pleistocene ungulates. Part 6 takes up the presence of man in ancient Beringia. Part 7 assesses the paleoecology of Beringia during the last 40,000 years
Download or read book Alaska Dinosaurs written by Anthony R. Fiorillo and published by CRC Press. This book was released on 2018-01-02 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anthony Fiorillo has been exploring the Arctic since 1998. For him, like many others, the Arctic holds the romance of uncharted territory, extreme conditions, and the inevitable epic challenges that arise. For Fiorillo, however, the Arctic also holds the secrets of the history of life on Earth, and its fossils bring him back field season after field season in pursuit of improving human understanding of ancient history. His studies of the rocks and fossils of the Arctic shed light on a world that once was, and provide insight into what might be.
Download or read book First Peoples in a New World written by David J. Meltzer and published by Univ of California Press. This book was released on 2009-05-27 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than 12,000 years ago, in one of the greatest triumphs of prehistory, humans colonized North America, a continent that was then truly a new world. Just when and how they did so has been one of the most perplexing and controversial questions in archaeology. This dazzling, cutting-edge synthesis, written for a wide audience by an archaeologist who has long been at the center of these debates, tells the scientific story of the first Americans: where they came from, when they arrived, and how they met the challenges of moving across the vast, unknown landscapes of Ice Age North America. David J. Meltzer pulls together the latest ideas from archaeology, geology, linguistics, skeletal biology, genetics, and other fields to trace the breakthroughs that have revolutionized our understanding in recent years. Among many other topics, he explores disputes over the hemisphere's oldest and most controversial sites and considers how the first Americans coped with changing global climates. He also confronts some radical claims: that the Americas were colonized from Europe or that a crashing comet obliterated the Pleistocene megafauna. Full of entertaining descriptions of on-site encounters, personalities, and controversies, this is a compelling behind-the-scenes account of how science is illuminating our past.
Download or read book Sustainable Fisheries Management written by E. Eric Knudsen and published by CRC Press. This book was released on 2020-02-10 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt: What has happened to the salmon resource in the Pacific Northwest? Who is responsible and what can be done to reverse the decline in salmon populations? The responsibly falls on everyone involved - fishermen, resource managers and concerned citizens alike - to take the steps necessary to ensure that salmon populations make a full recovery. T
Download or read book National Assessment of Shoreline Change written by and published by . This book was released on 2006 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
