Download or read book A Cost effectiveness Analysis of Crassostrea Virginica Restoration as a Possible Nutrient Reducing Method Within Chesapeake Bay A Study of the Great Wicomico River Virginia written by Amanda Ann Wenczel and published by . This book was released on 2007 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chesapeake Bay is currently on the verge of an ecological crisis. Most of the Bay and tributary waters are considered impaired, flora and fauna populations are at all time lows, and there does not appear to be a significant solution in the near future. Over the years, there have been a number of attempts at improving water quality, most notably through wastewater treatment upgrades and changes in agricultural practices. Although these programs have been in place for years, there has been little effect, leading to the increased demand for new initiatives in this field. Additionally, all time low population levels have been recorded for Crassostrea virginica (the eastern oyster), a culturally, economically, and ecologically significant species for the Bay-region. Based on the need to increase both water quality and oyster populations, researchers have proposed a new initiative: the use of oysters' natural ability of filtration to reduce local levels of nutrients. Thus far, research related to this innovative idea has focused on filtration rates and the survivability of restored oyster populations. This thesis attempts to expand upon the current research by conducting a cost-effectiveness analysis on the costs associated with an oyster restoration project in the Great Wicomico River, Virginia as they relate to the amount of nutrients removed by the restored population. The goal of this analysis is to provide a comparison between the unit cost of removing one pound of a nutrient through oyster filtration versus that of the current or proposed alternatives. Based on the preliminary analysis and a Monte Carlo Sensitivity Analysis to account for variability, it was found that oyster restoration projects are not cost-effective solutions to reducing nutrients within Chesapeake Bay. The current alternatives can remove one pound of nitrogen at a cost of between $1.57/lb and $8.56/lb, while according to the Monte Carlo analysis, the oyster restoration project would cost roughly $77.77/lb of nitrogen removed. The results are similar in proportion with phosphorus removal. Overall, this thesis found that oyster filtration is not a cost-effective solution to removing nutrients from Chesapeake Bay, with the recommendation that current alternatives continue until a less-costly method is devised.
Download or read book Progress Report of the Baywide Nutrient Reduction Reevaluation written by Chesapeake Bay Program (U.S.). Nutrient Reevaluation Workgroup and published by . This book was released on 1992 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Restoration Guidelines for Shellfish Reefs written by Simon Branigan and published by . This book was released on 2019-09-25 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The restoration of habitat has become a priority for many citizens and governments as the ecological and societal benefits of these habitats have been become more widely recognised. This publication is intended to provide foundational information to serve as a useful starting pointfor shellfish reef restoration.
Download or read book The Eastern Oyster written by Victor S. Kennedy and published by University of Maryland Sea Grant Publications. This book was released on 1996 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1966 Congress passed the National Sea Grant College Program Act to promote marine research, education, and extension services in institutions along the nation's ocean and Great Lakes coasts. In Maryland a Sea Grant Program -- a partnership among federal and state governments, universities, and industries -- began in 1977, and in 1982 the University of Maryland was named the nation's seventeenth Sea Grant College. The Maryland Sea Grant College focuses its efforts on the Chesapeake Bay, with emphasis on the marine concerns of fisheries, seafood technology, and environmental quality. The first comprehensive review of the biology of the eastern oyster in more than thirty years. The twenty-one chapters synthesize every aspect of oyster biology -- for instance, general anatomy, physiology, the circulatory system, reproduction, genetics, diseases -- and issues related to management and aquaculture.
Download or read book Shellfish Aquaculture and the Environment written by Sandra E. Shumway and published by John Wiley & Sons. This book was released on 2011-11-15 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shellfish Aquaculture and the Environment focuses primarily on the issues surrounding environmental sustainability of shellfish aquaculture. The chapters in this book provide readers with the most current data available on topics such as resource enhancement and habitat restoration. Shellfish Aquaculture and the Environment is also an invaluable resource for those looking to develop and implement environmental best management practices. Edited one of the world's leading shellfish researchers and with contributions from around the world, Shellfish Aquaculture and the Environment is the definitive source of information for this increasingly important topic. View the Executive Summary here: http://seagrant.uconn.edu/publications/aquaculture/execsumm.pdf
Download or read book Diet for a Sustainable Ecosystem written by Benjamin E. Cuker and published by Springer. This book was released on 2020-08-11 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores a specific ecosystem in depth, in order to weave a story built on place and history. It incorporates the theme of a journey to help reveal the environment-human-health-food system-problem. While drawing on a historical approach stretching back to the American colonial era, it also incorporates more contemporary scientific findings. By crafting its story around a specific place, the book makes it easier for readers to relate to the content, and to subsequently use what they learn to better understand the role of food systems at the global scale.
Download or read book World Atlas of Mangroves written by Mark Spalding and published by Earthscan. This book was released on 2010 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This atlas provides the first truly global assessment of the state of the world's mangroves. Written by the leading expert on mangroves with support from the top international researchers and conservation organizations, this full color atlas contains 60 full-page maps, hundreds of photographs and illustrations and a comprehensive country-by-country assessment of mangroves. Included are the first detailed estimates of changes in mangrove forestcover worldwide and at regional and national levels, an assessment of these changes and a country-by-country examination of biodiversity protection. The book also presents a wealth of global statistics on biodiversity, habitat area, loss and economic value which provide a unique record of mangroves against which future threats and changes can be evaluated. Case-studies, written by regional experts, provide insights into regional mangrove issues, including primary and potential productivity, biodiversity, and information on present and traditional uses and values and sustainable management."--Pub. desc.
Download or read book Oyster Reef Habitat Restoration written by and published by . This book was released on 1999 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology of Marine Bivalves written by Richard F. Dame and published by CRC Press. This book was released on 2016-04-19 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring the potential use of bivalves as indicators and monitors of ecosystem health, this book describes live and computer simulated experiments, mesocosm studies, and field manipulation experiments. This second edition discusses major new developments, including phase shifts in many coastal and estuarine ecosystems dominated by suspension-feeding bivalves, the invasion or introduction of alien bivalve species, the rapid growth of environmental restoration focused on bivalves, and the examination of geological history with regard to global climate change and its impact on bivalve-dominated systems.
Download or read book Environmental Toxicity Testing written by K. Clive Thompson and published by John Wiley & Sons. This book was released on 2009-02-05 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: As an integral component of environmental policy, it has become essential to regulate and monitor toxic substances. Past emphasis has been primarily on analytical approaches to the detection of specific, targeted contaminants, thus allowing chemical characterisation. However, toxicity testing or biological assessment is necessary for ecotoxicological evaluation, and this offers marked benefits and advantages that complement chemical analysis. Key issues to be addressed include identification of pertinent tests, reproducibility and robustness of these tests, and cost considerations.This book examines these issues and describes and explains the approaches that have been developed for environmental toxicity evaluations. Advantages, benefits and drawbacks of the strategies and methods are highlighted. Directed equally at ecotoxicologists, industrial chemists, analytical chemists and environmental consultants, this book is written in a way that will prove helpful to both new and experienced practitioners.
Download or read book The Oyster Wars of Chesapeake Bay written by John Wennersten and published by Lulu.com. This book was released on 2007 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the decades after the Civil War, Chesapeake Bay became the scene of a life and death struggle to harvest the oyster.
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 The Oyster written by William Keith Brooks and published by . This book was released on 1905 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Field Guide to Atlantic Coast Fishes written by C. Richard Robins and published by Houghton Mifflin Harcourt. This book was released on 1986 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: The more than 1,000 species descriptions in this guide include information on range and habitat such as depths, bottom types, water temperatures, and salinity. The almost 1,100 illustrations use the Peterson Identification System for quick, accurate field identification.
Download or read book World Atlas of Coral Reefs written by Mark Spalding and published by Univ of California Press. This book was released on 2001 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: An up-to-date, detailed, and fully-illustrated account of the biodiversity and status of coral reefs.
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 Long Island Sound written by James S. Latimer and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Ocean Commission Report identified the need for regional ecosystem assessments to support coastal and ocean management. These assessments must provide greater understanding of physical and biological dynamics than assessments at global and national scales can provide but transcend state and local interests. This need and timeliness is apparent for Long Island Sound, where a multi-state regional restoration program is underway for America’s most urbanized estuary. Synthesis of the Long Island Sound ecosystem is needed to integrate knowledge across disciplines and provide insight into understanding and managing pressing issues, such as non-point sources of pollution, coastal development, global climatic change, and invasive species. Currently, there is a need for a comprehensive volume that summarizes the ecological and environmental dynamics and status of Long Island Sound and its myriad ecosystems. It has been 30 years since a comprehensive summary of Long Island Sound was prepared and 50 years since the pioneering work of Gordon Riley. Major advances in estuarine science are providing new insights into these systems, and yet, the condition of many estuaries is in decline in the face of continuing coastal development. There is an opportunity to lay a foundation for integrative coastal observing systems that truly provide the foundation for improved decision-making. This book will provide a key reference of our scientific understanding for work performed over the past three decades and guide future research and monitoring in a dynamic urbanized estuary.
