Download or read book Coastal Hypoxia written by Nancy N. Rabalais and published by American Geophysical Union. This book was released on 2001-01-09 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypoxia occurs when dissolved oxygen falls below the level necessary to sustain most animal life, often due to fertilizer run-off. This volume reviews how the expanding hypoxic zone in the northern Gulf of Mexico has affected living resources in the Louisiana/Texas shelf. Topics of the 23 chapters include impacts of changing Si/N ratios and phytoplankton species composition, the effect of hypoxia and anoxia on the supply and settlement of benthic invertebrate larvae, and ecological effects of hypoxia in fish, sea turtles, and marine mammals. c. Book News Inc.
Download or read book Dissolved Oxygen in the Chesapeake Bay written by Gail B. Mackiernan and published by . This book was released on 1987-03-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay written by National Research Council and published by National Academies Press. This book was released on 2011-09-26 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chesapeake Bay is North America's largest and most biologically diverse estuary, as well as an important commercial and recreational resource. However, excessive amounts of nitrogen, phosphorus, and sediment from human activities and land development have disrupted the ecosystem, causing harmful algae blooms, degraded habitats, and diminished populations of many species of fish and shellfish. In 1983, the Chesapeake Bay Program (CBP) was established, based on a cooperative partnership among the U.S. Environmental Protection Agency (EPA), the state of Maryland, and the commonwealths of Pennsylvania and Virginia, and the District of Columbia, to address the extent, complexity, and sources of pollutants entering the Bay. In 2008, the CBP launched a series of initiatives to increase the transparency of the program and heighten its accountability and in 2009 an executive order injected new energy into the restoration. In addition, as part of the effect to improve the pace of progress and increase accountability in the Bay restoration, a two-year milestone strategy was introduced aimed at reducing overall pollution in the Bay by focusing on incremental, short-term commitments from each of the Bay jurisdictions. The National Research Council (NRC) established the Committee on the Evaluation of Chesapeake Bay Program Implementation for Nutrient Reduction in Improve Water Quality in 2009 in response to a request from the EPA. The committee was charged to assess the framework used by the states and the CBP for tracking nutrient and sediment control practices that are implemented in the Chesapeake Bay watershed and to evaluate the two-year milestone strategy. The committee was also to assess existing adaptive management strategies and to recommend improvements that could help CBP to meet its nutrient and sediment reduction goals. The committee did not attempt to identify every possible strategy that could be implemented but instead focused on approaches that are not being implemented to their full potential or that may have substantial, unrealized potential in the Bay watershed. Because many of these strategies have policy or societal implications that could not be fully evaluated by the committee, the strategies are not prioritized but are offered to encourage further consideration and exploration among the CBP partners and stakeholders.
Download or read book Jellyfish Blooms Ecological and Societal Importance written by J. E. Purcell and published by Springer Science & Business Media. This book was released on 2001 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jellyfish', a group that includes scyphomedusae, hydromedusae, siphonophores and ctenophores, are important zooplankton predatorsthroughout the world's estuaries and oceans. These beautiful creatureshave come to public attention as featured exhibits in aquaria and innews headlines as invaders and as providers of genes used inbiomedical research. Nevertheless, jellyfish are generally consideredto be nuisances because they interfere with human activities bystinging swimmers, clogging power plant intakes and nets of fishermenand fish farms, and competing with fish and eating fish eggs andlarvae. There is concern that environmental changes such as globalwarming, eutrophication, and over-fishing may result in increasedjellyfish populations.The literature reviews and research papers in this volume explore theinteractions between jellyfish and humans. Papers cover the medicalaspects of jellyfish stings, jellyfish as human food and jellyfishfisheries, interactions of jellyfish and fish, effects ofenvironmental changes on jellyfish, effects of introduced ctenophoreson the Black Sea ecosystem, factors causing increases orconcentrations of jellyfish, and others aspects of jellyfish ecology.This is an important reference for students and professional marinebiologists, oceanographers, fishery scientists, and aquarists.
Download or read book Turning the Tide written by Tom Horton and published by Island Press. This book was released on 2003-07-15 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1991, Island Press published Turning the Tide, a unique and accessible examination of the Chesapeake Bay ecosystem. The book took an indepth look at the Bay’s vital signs to gauge the overall health of its entire ecosystem and to assess what had been done and what remained to be done to clean up the Bay. This new edition of Turning the Tide addresses new developments of the past decade and examines the factors that will have the most significant effects on the health of the Bay in the coming years.With new case studies and updated maps, charts, and graphs, the book builds on the analytical power of ten years of experience to offer a new perspective, along with clear, science-based recommendations for the future. For all those who want to know not only how much must be done to save the Bay but what they can do and how they can make a difference, Turning the Tide is an essential source of information.
Download or read book Chesapeake Bay Program Technical Studies written by and published by . This book was released on 1982 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contemporary Issues in Estuarine Physics written by Arnoldo Valle-Levinson and published by Cambridge University Press. This book was released on 2010-01-28 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estuaries are of high socioeconomic importance with twenty-two of the thirty-two largest cities in the world located on river estuaries. Estuaries bring together fluxes of fresh and saline water, as well as fluvial and marine sediments, and contain high biological diversity. Increasingly sophisticated field observation technology and numerical modeling have produced significant advances in our understanding of the physical properties of estuaries over the last decade. This book introduces a classification for estuaries before presenting the basic physics and hydrodynamics of estuarine circulation and the various factors that modify it in time and space. It then covers special topics at the forefront of research such as turbulence, fronts in estuaries and continental shelves, low inflow estuaries, and implications of estuarine transport for water quality. Written by leading authorities on estuarine and lagoon hydrodynamics, this volume provides a concise foundation for academic researchers, advanced students and coastal resource managers.
Download or read book Dissolved Oxygen in the Chesapeake Bay written by Lawrence W. Harding and published by . This book was released on 1992 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chesapeake Bay Study written by and published by . This book was released on 1984 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report -- Summary: Supplement A. Problem identification. Supplement B. Public involvement. Supplement C. The Chesapeake Bay hydraulic model.
Download or read book Chesapeake Bay Restoration written by United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Water and Wildlife and published by . This book was released on 2015 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxygen Dynamics in the Chesapeake Bay written by David E. Smith and published by Schiffer Publishing. This book was released on 1992 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the processes that create and sustain anoxia (the absence of oxygen) and hypoxia (the near absence of oxygen) in bottom waters of the Chesapeake Bay. The authors of the book's four chapters discuss major findings and summarize the gradually developing consensus on the implications of these findings for resource management. William C. Boicourt focuses on the physical aspects of Chesapeake Bay in order to distinguish the role and relative importance of circulation processes in the creation of low dissolved oxygen levels. Thomas C. Malone examines the role of water column processes, including the importance and interaction of nutrients, phytoplankton and zooplankton. Robert Jonas discusses the significance of microbial populations, while W. Michael Kemp and Walter R. Boynton discuss the role and importance of benthicpelagic coupling on Chesapeake Bay dissolved oxygen.
Download or read book Chesapeake Bay Study written by United States. Army. Corps of Engineers. Baltimore District and published by . This book was released on 1978 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystems at the Land Sea Margin written by Thomas C. Malone and published by American Geophysical Union. This book was released on 1999-01-26 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Coastal and Estuarine Studies, Volume 55. Nutrient and contaminant inputs to estuaries and coastal seas, the exploitation of living resources, translocation of nonindigenous species, and habitat loss or modification are among the most significant and sustained anthropogenic alterations of coastal ecosystems. Although the chapters that follow touch on all of these issues, the causes and consequences of nutrient enrichment are emphasized. Nutrient enrichment of estuaries and coastal seas has increased dramatically in recent decades, largely as a consequence of the combustion of fossil fuels and land-use patterns in coastal watersheds related to increases in population density and agriculture. How these changes and the compounding effects of meteorological events and local?]regional expressions of global climate change will play out in terms of ecosystem dynamics are important questions that will drive research and monitoring in the coastal zone for decades to come.
Download or read book Sediment water Fluxes and Sediment Analyses in Chesapeake Bay written by and published by . This book was released on 1996 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chesapeake Bay Tidal Flooding Study written by and published by . This book was released on 1984 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tracings: 60.28.
Download or read book Sediment Diagenesis written by A. Parker and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of sediment diagenesis is of fundamental importance to industry in the evaluation of hydrocarbon and water reservoir rocks. Detailed knowledge of the diagenetic textures, fabrics, and minerals, and a prediction of the regional diagenetic response, partly controls hydrocarbon recovery programmes. In other words, knowledge of the diagenesis can aid (or even control) conservation policy. Similarly, facies and diagenetic trends w.ithin basins can influence exploration policy. This volume incorporates the majority of the principal contributions given to the NATO Advanced Study Institute held in the University of Reading, U.K., from July 12th-25th, 1981, at which the major themes of carbonate and terrigenous clastic sediments were treated sequentially from deposition to deep burial. Eighty selected scientists from twelve NATO and three other countries participated in the Institute. The keynote addresses which acted as the touchstones for discussion are presented here in the expectation that they will stimulate a still wider audience. We gratefully acknowledge the award of a grant from the Scientific Affairs Division of NATO to run the Institute, and also the cooperation of the University of Reading. Mrs. D. M. Powell helped in many ways with the organisation, and also retyped the entire manuscript of this book. A. Parker B. lv. Sellwood vii FACIES, SEQUENCES AND SAND-BODIES OF THE PRINCIPAL CLASTIC DEPOSITIONAL ENVIRONMENTS T.Elliott Department of Geology University College of Swansea Singleton Park, Swansea SA 2 8PP Wales, U.K.
Download or read book Fishery Bulletin written by and published by . This book was released on 1998 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
