Download or read book Environmental and Ecological Benefits and Impacts of Oyster Aquaculture Chesapeake Bay Virginia USA written by M. Lisa Kellogg and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To better quantify the ecological benefits and impacts of oyster aquaculture, we sampled water quality, sediment quality, benthic macrofaunal communities and oysters at four oyster aquaculture sites located on the western shore of Chesapeake Bay in Virginia, USA. At each site, we collected samples from within the footprint of the aquaculture cages and from nearby areas with similar physical and environmental conditions but far enough away to be minimally influenced by aquaculture operations. Data collected from the water column included chlorophyll concentrations, turbidity, pH, dissolved oxygen concentrations, light attenuation, particle concentration, median particle size, total suspended solids and their organic content, and dissolved nutrient concentrations. Sediment and macrofauna community data collected included sediment grain size and organic content and macrofauna identity, abundance, biomass and species richness. In addition to assessing the potential impacts of oyster aquaculture on the water column and benthos, we also assessed differences in the oysters harvested Environmental and ecological benefits and impacts of oyster aquaculture at each site and estimated the total amount of nitrogen and phosphorus harvested at each site. Differences in water quality, sediment quality, and macrofauna community structure between areas within and outside the farm footprint were rare and of small magnitude and varying direction (i.e. negative versus positive impact) when they did occur. Aquaculture sites varied by an order of magnitude in size, annual harvest and harvest per unit area. They also varied by an order of magnitude in the total amount of nitrogen (N) and phosphorus (P) harvested per unit area. In contrast to the negative environmental impacts associated with other forms of animal protein production for human consumption, oyster harvest from aquaculture sites studied here resulted in the removal of 21-372 lbs. of N and 3-49lbs of P per farm per year.
Download or read book Nonnative Oysters in the Chesapeake Bay written by National Research Council and published by National Academies Press. This book was released on 2004-03-09 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonnative Oysters in the Chesapeake Bay discusses the proposed plan to offset the dramatic decline in the bay's native oysters by introducing disease-resistant reproductive Suminoe oysters from Asia. It suggests this move should be delayed until more is known about the environmental risks, even though carefully regulated cultivation of sterile Asian oysters in contained areas could help the local industry and researchers. It is also noted that even though these oysters eat the excess algae caused by pollution, it could take decades before there are enough of them to improve water quality.
Download or read book Environmental and Ecological Benefits and Impacts of Oyster Aquaculture written by M. Lisa Kellogg and published by . This book was released on 2018 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The data described in this addendum are provided to enhance the resolution and/or expand the temporal scope of the information already provided in the final report (Kellogg et al. 2018). High-resolution water quality transect data were collected at all four sites in Summer 2017, at White Stone (Windmill Point site) and Lynnhaven River in Fall 2017, and at White Stone (North Point site) in Spring 2018. During each sampling period, data were collected from multiple transects through and outside of each farm. Resulting data were detrended as needed based on temporal and salinity-related patterns found in data collected outside the farm footprint. Comparison of the resulting data from inside and outside the farm identified significant differences between water quality inside the farm footprint and outside for the majority of site x season combinations for all parameters. However, differences were consistently small enough to have no biologically significant impact, positive or negative, on farm-scale water quality. Benthic macrofaunal communities inside and outside the farms were assessed at White Stone’s Windmill Point site and at the Lynnhaven River site in Fall 2017 and White Stone’s North Point site in Spring 2018. Data on species richness, macrofauna abundance, and macrofauna biomass were compared between samples taken inside the farm footprint and outside the farm footprint for all site x season combinations. These data were compared to data previously reported from Summer 2017 collected at all four aquaculture sites. Overall, patterns in species richness and macrofauna abundance were not consistent across seasons within site, across sites within seasons or within gear type. With the exception of one of the farm sites studied, there was a trend towards increased macrofauna biomass inside the footprint of aquaculture farms. This pattern is consistent with the assumption that food for benthic macrofauna at these sites is enhanced by oyster biodeposition. Overall, we found no biologically significant negative impacts on macrofaunal communities inside aquaculture farms and some evidence that suggests a possible positive impact on benthic macrofauna production.
Download or read book Efforts to introduce non native oyster species to the Chesapeake Bay and the National Research Council s report titled Non Native Oysters in the Chesapeake Bay written by United States. Congress. House. Committee on Resources. Subcommittee on Fisheries Conservation, Wildlife, and Oceans and published by . This book was released on 2004 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Considering the Oyster written by Andrew Stuhl and published by . This book was released on 2007 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chesapeake Bay oyster restoration management research written by United States. Congress. House. Committee on Resources. Subcommittee on Fisheries Conservation, Wildlife, and Oceans and published by . This book was released on 2002 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Ecological Functions of Constructed Oyster Reefs Along an Environmental Gradient in Chesapeake Bay written by Francis Xavier O'Beirn and published by . This book was released on 1999 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 The Oyster Industry of Virginia written by Dexter S. Haven and published by . This book was released on 1978 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Regulation of Environmental Science written by David E. Smith and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The native Chesapeake Bay oyster stocks and harvest are at their lowest level in history, and the Virginia oyster industry is being threatened with economic extinction. A number of factors have contributed to this decline, but the three most often cited are: overfishing; environmental degradation, such as diminished water quality and habitat loss; and oyster disease. Concern over the ecologic and economic impact of this decline has led some Virginia scientists to look for other oyster species which may in the long term be used as a substitute species for "Crassostrea virginica". The introduction of an exotic species of oyster into the Chesapeake Bay has social, economic, ecological and political ramifications. In early spring of 1990 the Virginia Institute of Marine Science (VIMS) of the College of William and Mary submitted a proposal to the Virginia Marine Resources Commission requesting permission to conduct an open water experiment using the Japanese oyster, "Crassostrea gigas", in the York River, one of the tidal rivers of the Chesapeake Bay. The controversy surrounding this proposal and its approval and denial described here, has involved representatives from several state governments, various components of the Chesapeake Bay oyster industry, non-governmental organizations and public interest groups"--National Sea Grant Library publication website.
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 Restoration of the Virginia Oyster Fishery written by Dennis L. Taylor and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diet for a Sustainable Ecosystem written by Benjamin E. Cuker and published by Springer Nature. This book was released on 2020-08-10 with total page 430 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 Potential Listing of the Eastern Oyster Under the Endangered Species Act written by United States. Congress. House. Committee on Resources and published by Amicus. This book was released on 2005 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amicus Readers at level 1 include: a picture glossary, a table of contents, index, websites, and literacy notes located in the back of each book. Additionally, content words are introduced within the text supported by a variety of photo labels. In particular, this title describes the scientific concepts of heat, melting, freezing, and boiling using everyday cooking examples. Includes experiments.
Download or read book Chesapeake Bay Oyster Management Plan written by Chesapeake Executive Council and published by . This book was released on 1989 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
