Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1975-10 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of Sockeye Salmon Research Karluk River System Alaska 1880 2010 written by Richard Gard and published by . This book was released on 2014 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquatic Ecosystems Interactivity of Dissolved Organic Matter written by Stuart Findlay and published by Academic Press. This book was released on 2003 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overviews of the source, supply and variability of DOM, surveys of the processes that mediate inputs to microbial food webs, and syntheses consolidating research findings provide a comprehensive review of what is known of DOM in freshwater. This book will be important to anyone interested in understanding the fundamental factors associated with DOM that control aquatic ecosystems."--BOOK JACKET.
Download or read book Ecology of Atlantic Salmon and Brown Trout written by Bror Jonsson and published by Springer Science & Business Media. This book was released on 2011-05-03 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Destruction of habitat is the major cause for loss of biodiversity including variation in life history and habitat ecology. Each species and population adapts to its environment, adaptations visible in morphology, ecology, behaviour, physiology and genetics. Here, the authors present the population ecology of Atlantic salmon and brown trout and how it is influenced by the environment in terms of growth, migration, spawning and recruitment. Salmonids appeared as freshwater fish some 50 million years ago. Atlantic salmon and brown trout evolved in the Atlantic basin, Atlantic salmon in North America and Europe, brown trout in Europe, Northern Africa and Western Asia. The species live in small streams as well as large rivers, lakes, estuaries, coastal seas and oceans, with brown trout better adapted to small streams and less well adapted to feeding in the ocean than Atlantic salmon. Smolt and adult sizes and longevity are constrained by habitat conditions of populations spawning in small streams. Feeding, wintering and spawning opportunities influence migratory versus resident lifestyles, while the growth rate influences egg size and number, age at maturity, reproductive success and longevity. Further, early experiences influence later performance. For instance, juvenile behaviour influences adult homing, competition for spawning habitat, partner finding and predator avoidance. The abundance of wild Atlantic salmon populations has declined in recent years; climate change and escaped farmed salmon are major threats. The climate influences through changes in temperature and flow, while escaped farmed salmon do so through ecological competition, interbreeding and the spreading of contagious diseases. The authors pinpoint essential problems and offer suggestions as to how they can be reduced. In this context, population enhancement, habitat restoration and management are also discussed. The text closes with a presentation of what the authors view as major scientific challenges in ecological research on these species.
Download or read book Conservation of Freshwater Fishes written by Gerry Closs and published by Cambridge University Press. This book was released on 2016 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: A global assessment of the current state of freshwater fish biodiversity and the opportunities and challenges to conservation.
Download or read book Mission Without a Map written by Joe Hunt and published by EVOS Trustee Council. This book was released on 2010 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Original version released for publication by the Council in 2009; Rev. ed. released June 2010.
Download or read book Bald Eagles in Alaska written by Philip F. Schempf and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An expansive collection of papers and articles from internationally recognized bald eagle experts. Presented is a complete portrait of the status and ecology of the bald eagle in Alaska.A collection of papers and articles from international bald eagle experts, which present a complete portrait of the status and ecology of the bald eagle in Alaska. Myriad topics include culture, biology, population history and status, conservation and management, the Alaskan habitat from the northern rainforest to the Aleutian Islands, attitudes from diverse groups from the Tlingit to bounty hunters, along with sound scientific data.
Download or read book Inland Fisheries Management in North America written by Christopher C. Kohler and published by . This book was released on 1999 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The book covers fishery assessments, habitat and community manipulations, and common practices for managing stream, river, lake, and anadromous fisheries. Chapters on history; ecosystem management; management processes; communications with the public; introduced, undesirable, and endangered species; and the legal and regulatory frameworks provide the context for modern fisheries management." From fisheries.org.
Download or read book Complex Interactions in Lake Communities written by Stephen R. Carpenter and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its statutory authority (National Science Foundation Act of 1950, as amended), the NSF is directed to both initiate and support basic scientific research. In its Ecology Program, one mode of initiating research is to en courage the development of new ideas through advisory workshops. The NSF is specifically directed to strengthen our nation's research potential. In addition, stimulating new approaches to research will continue to be prominent in the coming years as federal attention is given to increasing the innovativeness and competitiveness of the U. S. in science and engineering. A decision to initiate a workshop does not arise de novo in the Ecology Program. Rather, it emerges from panel discussions, conversations with in vestigators at meetings or on the phone, and from discussions between pro gram officers in the Division of Biotic Systems and Resources. This workshop was developed to provide advice to the NSF and the lim nological community. Some NSF perceptions on future funding for ecolog ical research on lake communities are presented here. Researchers often mentioned a paucity of innovative lake ecology at the community level. This perception was accompanied by a certain frustration since lakes probably have the best empirical data base of any natural environment and should continue to lead in the development of ecological concepts. Members of NSF advisory panels sometimes expressed similar concerns during consid eration of proposals for lake research.
Download or read book Contributions to the Life history of the Sockeye Salmon written by and published by . This book was released on 1914 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal Ecological Systems of the United States written by Howard T. Odum and published by Conservation Foundation. This book was released on 1974-06-01 with total page 1977 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Invasive plants of Alaska written by and published by Government Printing Office. This book was released on 2005 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOTE: NO FURTHER DISCOUNT FOR THIS PRODUCT -- Significantly reduced price -- Overstock List Price Describes invasive, non-native plants moving into Alaska.
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 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.
Download or read book Fauna of the Aleutian Islands and Alaska Peninsula written by Olaus Johan Murie and published by . This book was released on 1959 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic account of the results of a survey made in 1936 and 1937 to aid supervision of the Aleutian Islands National Wildlife Refuge. (AB60374).
Download or read book American Indian Law written by Robert T. Anderson and published by West Academic Publishing. This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This casebook provides an introduction to the legal relationships between American Indian tribes, the federal government and the individual states. The foundational cases are incorporated with statutory text, background material, hypothetical questions, and discussion problems to enliven the classroom experience and enhance student engagement. The second edition includes expanded materials on gaming, international and comparative law, and more photographs, images, and suggestions for links to external sources.
Download or read book Encyclopedia of Prehistory written by Peter N. Peregrine and published by Springer. This book was released on 2001-02-28 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Prehistory represents also defined by a somewhat different set of an attempt to provide basic information sociocultural characteristics than are eth on all archaeologically known cultures, nological cultures. Major traditions are covering the entire globe and the entire defined based on common subsistence prehistory of humankind. It is designed as practices, sociopolitical organization, and a tool to assist in doing comparative material industries, but language, ideology, research on the peoples of the past. Most and kinship ties play little or no part in of the entries are written by the world's their definition because they are virtually foremost experts on the particular areas unrecoverable from archaeological con and time periods. texts. In contrast, language, ideology, and The Encyclopedia is organized accord kinship ties are central to defining ethno ing to major traditions. A major tradition logical cultures. is defined as a group of populations sharing There are three types of entries in the similar subsistence practices, technology, Encyclopedia: the major tradition entry, and forms of sociopolitical organization, the regional sub tradition entry, and the which are spatially contiguous over a rela site entry. Each contains different types of tively large area and which endure tempo information, and each is intended to be rally for a relatively long period. Minimal used in a different way.
