Questionnaire Survey of Spada Lake Anglers, 1995 PDF Download

Author: Bob Pfeifer
Publisher:
ISBN:
Category : Fishers
Languages : en
Pages : 44

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Author: Bob Pfeifer
Publisher:
ISBN:
Category : Fishing
Languages : en
Pages : 64

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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309301866
Category : Science
Languages : en
Pages : 224

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Book Description
Once ice-bound, difficult to access, and largely ignored by the rest of the world, the Arctic is now front and center in the midst of many important questions facing the world today. Our daily weather, what we eat, and coastal flooding are all interconnected with the future of the Arctic. The year 2012 was an astounding year for Arctic change. The summer sea ice volume smashed previous records, losing approximately 75 percent of its value since 1980 and half of its areal coverage. Multiple records were also broken when 97 percent of Greenland's surface experienced melt conditions in 2012, the largest melt extent in the satellite era. Receding ice caps in Arctic Canada are now exposing land surfaces that have been continuously ice covered for more than 40,000 years. What happens in the Arctic has far-reaching implications around the world. Loss of snow and ice exacerbates climate change and is the largest contributor to expected global sea level rise during the next century. Ten percent of the world's fish catches comes from Arctic and sub-Arctic waters. The U.S. Geological Survey estimated that up to 13 percent of the world's remaining oil reserves are in the Arctic. The geologic history of the Arctic may hold vital clues about massive volcanic eruptions and the consequent release of massive amount of coal fly ash that is thought to have caused mass extinctions in the distant past. How will these changes affect the rest of Earth? What research should we invest in to best understand this previously hidden land, manage impacts of change on Arctic communities, and cooperate with researchers from other nations? The Arctic in the Anthropocene reviews research questions previously identified by Arctic researchers, and then highlights the new questions that have emerged in the wake of and expectation of further rapid Arctic change, as well as new capabilities to address them. This report is meant to guide future directions in U.S. Arctic research so that research is targeted on critical scientific and societal questions and conducted as effectively as possible. The Arctic in the Anthropocene identifies both a disciplinary and a cross-cutting research strategy for the next 10 to 20 years, and evaluates infrastructure needs and collaboration opportunities. The climate, biology, and society in the Arctic are changing in rapid, complex, and interactive ways. Understanding the Arctic system has never been more critical; thus, Arctic research has never been more important. This report will be a resource for institutions, funders, policy makers, and students. Written in an engaging style, The Arctic in the Anthropocene paints a picture of one of the last unknown places on this planet, and communicates the excitement and importance of the discoveries and challenges that lie ahead.

Author: Intergovernmental Panel on Climate Change (IPCC)
Publisher: Cambridge University Press
ISBN: 1009178466
Category : Science
Languages : en
Pages : 1807

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The Intergovernmental Panel on Climate Change (IPCC) is the leading international body for assessing the science related to climate change. It provides policymakers with regular assessments of the scientific basis of human-induced climate change, its impacts and future risks, and options for adaptation and mitigation. This IPCC Special Report on the Ocean and Cryosphere in a Changing Climate is the most comprehensive and up-to-date assessment of the observed and projected changes to the ocean and cryosphere and their associated impacts and risks, with a focus on resilience, risk management response options, and adaptation measures, considering both their potential and limitations. It brings together knowledge on physical and biogeochemical changes, the interplay with ecosystem changes, and the implications for human communities. It serves policymakers, decision makers, stakeholders, and all interested parties with unbiased, up-to-date, policy-relevant information. This title is also available as Open Access on Cambridge Core.

Author: Frederick T. Short
Publisher: Univ of California Press
ISBN: 9780520240476
Category : Nature
Languages : en
Pages : 336

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Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.

Author: H. Douglas Brown
Publisher: Pearson Education ESL
ISBN: 9780134860220
Category : Language acquisition
Languages : en
Pages : 400

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Book Description
Language Assessment: Principles and Classroom Practices is designed to offer a comprehensive survey of essential principles and tools for second language assessment. Its first and second editions have been successfully used in teacher-training courses, teacher certification curricula, and TESOL master of arts programs. As the third in a trilogy of teacher education textbooks, it is designed to follow H. Douglas Brown's other two books, Principles of Language Learning and Teaching (sixth edition, Pearson Education, 2014) and Teaching by Principles(fourth edition, Pearson Education, 2015). References to those two books are made throughout the current book. Language Assessment features uncomplicated prose and a systematic, spiraling organization. Concepts are introduced with practical examples, understandable explanations, and succinct references to supportive research. The research literature on language assessment can be quite complex and assume that readers have technical knowledge and experience in testing. By the end of Language Assessment, however, readers will have gained access to this not-so-frightening field. They will have a working knowledge of a number of useful, fundamental principles of assessment and will have applied those principles to practical classroom contexts. They will also have acquired a storehouse of useful tools for evaluating and designing practical, effective assessment techniques for their classrooms.

Author: Babin, Marcel
Publisher: UNESCO
ISBN: 9231040421
Category : Nature
Languages : en
Pages : 880

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The proliferation of harmful phytoplankton in marine ecosystems can cause massive fish kills, contaminate seafood with toxins, impact local and regional economies and dramatically affect ecological balance. Real-time observations are essential for effective short-term operational forecasting, but observation and modelling systems are still being developed. This volume provides guidance for developing real-time and near real-time sensing systems for observing and predicting plankton dynamics, including harmful algal blooms, in coastal waters. The underlying theory is explained and current trends in research and monitoring are discussed.Topics covered include: coastal ecosystems and dynamics of harmful algal blooms; theory and practical applications of in situ and remotely sensed optical detection of microalgal distributions and composition; theory and practical applications of in situ biological and chemical sensors for targeted species and toxin detection; integrated observing systems and platforms for detection; diagnostic and predictive modelling of ecosystems and harmful algal blooms, including data assimilation techniques; observational needs for the public and government; and future directions for research and operations.

Author: Frederick William Kranz
Publisher:
ISBN:
Category :
Languages : en
Pages : 166

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Author: Sergi Tudela
Publisher: Food & Agriculture Org.
ISBN: 9789251051924
Category : Biodiversity
Languages : en
Pages : 60

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Most of the major impacts of fishing on the ecosystems recorded around the world occur in the Mediterranean. This variety of interactions is due to four main interrelated factors: the wide range of fishing gear and practices; very intensive fishing; a high diversity of exploited habitats, ranging from shallow water to the deep-sea and oceanic domain; and high biological diversity.

Author: Frank M. D'Itri
Publisher: CRC Press
ISBN: 9780873717052
Category : Science
Languages : en
Pages : 632

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Book Description
Chemical Deicers and the Environment provides a complete discussion of chemical deicer technology and history in the United States and Canada. The book describes engineering applications, maintenance procedures, economic evaluations, in addition to environmental problems and concerns relative to the use of chemical deicing. It also provides a technical appraisal of the latest technology to stimulate further research and discussion directed toward achieving a more integrated approach for the application of new deicers that will protect motor vehicles, highways and infrastructures, and the environment. Chemical Deicers and the Environment will be a useful reference volume for scientists, legislators, transportation engineers, environmentalists, consultants, and concerned individuals interested in learning about the economic and environmental advantages and disadvantages of today's chemical deicers.