Download or read book Sturgeons and Paddlefish of North America written by G.T.O LeBreton and published by Springer Science & Business Media. This book was released on 2006-01-20 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern North American sturgeons and paddlefish are the result of 100 million years of evolution. Once an integral part of aboriginal culture, their numbers were decimated by overfishing and habitat destruction during the past two centuries. This book details the extensive science aimed at helping these remarkable species recover from the brink of extinction, and describes the historical, biological, and ecological importance of North American sturgeon and paddlefish. The text is enhanced by photographs and detailed line drawings. This comprehensive volume will be an invaluable resource for researchers, educators, and consultants, in academic and government settings, who work to further scientific understanding of these fishes. No other single compilation has documented current information in such detail.

Download or read book Our Living Resources written by and published by . This book was released on 1995 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report provides information on distribution, abundance, and health of birds, mammals, reptiles and amphibians, fishes, invertebrates, plants, terrestrial ecosystems, aquatic ecosystems, coastal and marine ecosystems, riparian ecosystems, the Great Plains, Interior West, Alaska, and Hawaii. It also discusses special issues: global climate change, human influences, non-native species, and habitat assessments.

Download or read book Status and Trends of the Nation s Biological Resources written by and published by . This book was released on 1998 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book White Sturgeon Management Framework Plan written by and published by . This book was released on 1992 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Current Federal Aid Research Report written by and published by . This book was released on 1984 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federal Aid in Fish and Wildlife Restoration written by and published by . This book was released on 1981 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Handbook of Nature written by Frank R. Spellman and published by Government Institutes. This book was released on 2012 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of nature is a complex science involving many different fields from geology and meteorology to biology, zoology, and botany. This complexity indicates nature's broad scope of impact. It is at once beautiful and dangerous, displaying power beyond human control. An understanding of the basic principles and concepts of the study of nature is therefore both enriching and practical. In The Handbook of Nature, authors Frank R. Spellman and Joni Price-Bayer provide a comprehensive guide to the study of nature in terms the layperson can grasp easily. This accessible reference work is for the non-specialist looking for quick, accurate information on all aspects of the study of nature. The handbook is arranged thematically for a logical and user-friendly progression through the material. It includes chapters on the earth's structure and landforms, the atmosphere and weather, water and water sources, and the many different forms of life from single-celled organisms to complex vertebrates. Along with basic natural scientific principles, the authors look closely at the consequences of human interactions with the environment we inhabit. This reference concludes with a glossary and index, and each chapter provides further resources and recommended reading. It is an essential tool for students and professionals alike.

Download or read book Ecology for Nonecologists written by Frank R. Spellman and published by Rowman & Littlefield. This book was released on 2008 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written for anyone who works with chemicals or has a general interest in ecology, this book examines the interrelationship of life forms in our environment and provides straightforward explanations about the complicated interactions among nature and humans. Emphasizing basic concepts, definitions, and descriptions, the author presents illustrative problems in terms of commonly used ecological parameters to provide readers with enough information to make technical and personal decisions about ecology. Funneling the broad, multidisciplinary field of ecology, which incorporates aspects of biology, chemistry, physics, geology, meteorology, agriculture, forestry, and more into a single stream, the author provides those with backgrounds in only a handful, or even none, of these disciplines with an easy-to-read understanding of the functions and values of ecology and its interrelationships with other sciences, including ecology's direct impact on our lives. Organized into three parts, this book examines the fundamentals of ecology, the role of biodiversity, and the practical side of ecology. Readers will examine such topics as biogeochemical cycles, ecological pyramids, and the laws of population ecology. They will also examine species, terrestrial ecosystems, and aquatic systems. Each chapter ends with a Chapter Review Test.

Download or read book Columbia River System Operation Review SOR written by and published by . This book was released on 1996 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1997 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sturgeon biodiversity and conservation written by Vadim J. Birstein and published by Springer Science & Business Media. This book was released on 1997-05-31 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a synthesis of basic biological and conservation data for more than 30 species of sturgeons (Acipenseridae), paddlefishes (Polyodontidae) and their fossil allies in the order Acipenseriformes. Since the Jurassic, the four families of sturgeon-like fish have been restricted to the Holarctic, where until very recently they flourished in most major river systems. Today, however, virtually all species of sturgeons and paddlefishes face difficult conservation issues. Papers in the first section of this volume examine paleontology, systematics, evolution and basic biology of Acipenseriformes. The second section of this volume details current conservation status for most of the world's living species of Acipenseriformes. These papers mark the first attempt to make such a global review of recent data from across the northern hemisphere. The emerging picture is discouraging, for negative anthropogenic impacts range from overfishing to water pollution, to dams and water diversion projects, and all species are threatened to some degree. The third section of the volume considers specific human impacts and responses to conservation issues. These include: the Aral Sea ecological disaster and its impact on native sturgeons; a review of methods for restoring sturgeon populations; the use of molecular techniques in developing conservation strategies; the extreme sensitivity of sturgeons and paddlefishes to overfishing; and the history of a recently convicted caviar poaching ring. The volume's summary reviews the status of all extant species and notes future directions for research on behavior, ecology and population biology that could lead to better co-ordinated international conservation efforts.

Download or read book California s Living Marine Resources written by William S. Leet and published by University Of California, Division of Agriculture and Natural Resources; Califorinia Sea Grant. This book was released on 2001 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 592-page spiral-bound reference provides a baseline of information for all those involved with managing living marine resources in California and chronicles changes that have occurred in many of the state’s fisheries. Organized by marine ecosystems: bays and estuaries, nearshore and offshore. Includes illustrated species descriptions with details of biological knowledge, fishery history, landings data, population status and references. Also includes sections on marine birds and mammals and appendices containing management considerations (by species), a glossary of technical terms and acronyms and fishing gear illustrations. Jointly produced by the California Sea Grant Extension Program and the California Department of Fish and Game following the passage of the Marine Life Protection Act in January 1999.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Initial Northwest Power Act Power Sales Contracts written by and published by . This book was released on 1992 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interior Environment and Related Agencies Appropriations for 2017 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies and published by . This book was released on 2016 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Channel Improvements Columbia and Lower Willamette River Federal Navigation Channel OR WA written by and published by . This book was released on 1999 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Interior Environment and Related Agencies Appropriations for 2008 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Interior, Environment, and Related Agencies and published by . This book was released on 2007 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt: