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Prevalence Of Disease Tissue Abnormalities And Tissue Metal Contents In Eastern Oysters Crassostrea Virginica From Connecticuts Long Island Sound Coastline
Download Prevalence Of Disease Tissue Abnormalities And Tissue Metal Contents In Eastern Oysters Crassostrea Virginica From Connecticuts Long Island Sound Coastline full books in PDF, epub, and Kindle. Read online Prevalence Of Disease Tissue Abnormalities And Tissue Metal Contents In Eastern Oysters Crassostrea Virginica From Connecticuts Long Island Sound Coastline ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Prevalence of Disease, Tissue Abnormalities and Tissue Metal Contents in Eastern Oysters (crassostrea Virginica) from Connecticut's Long Island Sound Coastline by : Gabriel Neil Geist
Download or read book Prevalence of Disease, Tissue Abnormalities and Tissue Metal Contents in Eastern Oysters (crassostrea Virginica) from Connecticut's Long Island Sound Coastline written by Gabriel Neil Geist and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial Trends in Eastern Oyster (Crassostrea Virginica) Tissue Metal Concentrations in Long Island Sound by : David Oshana
Download or read book Spatial Trends in Eastern Oyster (Crassostrea Virginica) Tissue Metal Concentrations in Long Island Sound written by David Oshana and published by . This book was released on 2010 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Disease Prevalence and the Population Genetic Structure of Crassostrea Virginica Along the Georgia Coast by : Sarah Batchelor
Download or read book Disease Prevalence and the Population Genetic Structure of Crassostrea Virginica Along the Georgia Coast written by Sarah Batchelor and published by . This book was released on 2021 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: The Eastern Oyster, Crassostrea virginica, is an ecologically important species that plays a role in protecting shorelines, water filtration, and providing habitat and food for various fish species. Perkinsus marinus and Haplosporidium nesloni are two pathogens currently affecting oyster populations. These pathogens have both been documented as causes of mass mortality events along the East coast. They greatly diminish the health of oysters, resulting in the degradation of oyster tissue, reduction in growth and reproductive ability, and may cause death. In this study, wild oysters were collected from eleven locations along the Georgia coast to investigate the presence, intensity, and impact on the health of local populations. The condition of each oyster was calculated during processing, and qPCR was used to determine the presence and intensity of both P. marinus and H. nelsoni. Additionally, population genetic structure and kinship within and among populations was examined using 20 microsatellite loci. Results showed that >90% of oysters tested were infected by one or both pathogens, and 48.8% of these were cases of co-infection. Intensity of infection varied significantly across sites for both P. marinus and H. nelsoni (p =
Book Synopsis Diseases & Parasites of the Eastern Oyster, Crassostrea Virginica, in Chesapeake Bay by : Chris Dungan
Download or read book Diseases & Parasites of the Eastern Oyster, Crassostrea Virginica, in Chesapeake Bay written by Chris Dungan and published by . This book was released on 2020-11 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication supports the development of oyster aquaculture industries and restored populations of wild oysters in the eastern United States. Both aquaculture and efforts to restore the eastern oyster, Crassostrea virginica, have expanded in recent years, increasing the need for a broader understanding of oyster health. This volume addresses that need by providing detailed information on the histological presentation of diseases and parasites affecting eastern oysters.
Book Synopsis Trace Metals in Eastern Oyster (Crassostrea Virginica) Tissues in Resource Waters, New Hanover County, North Carolina by : Savannah Baird Sherard
Download or read book Trace Metals in Eastern Oyster (Crassostrea Virginica) Tissues in Resource Waters, New Hanover County, North Carolina written by Savannah Baird Sherard and published by . This book was released on 2012 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diseases of Commercially Important Shellfish from Long Island, New York Including Studies on a New Reovirus Isolated from Juvenile American Oysters (Crassostrea Virginica) by : Theodore Richard Meyers
Download or read book Diseases of Commercially Important Shellfish from Long Island, New York Including Studies on a New Reovirus Isolated from Juvenile American Oysters (Crassostrea Virginica) written by Theodore Richard Meyers and published by . This book was released on 1980 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Prevalence of Disease in the Oyster Crassostrea Virginica in Rhode Island by : Retno Andamari
Download or read book The Prevalence of Disease in the Oyster Crassostrea Virginica in Rhode Island written by Retno Andamari and published by . This book was released on 1992 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Disease Prevalence, Intensity, and Kin Structure Within the Eastern Oyster, Crassostrea Virginica, in Oyster Creek, Georgia by : Jessica Watts
Download or read book Disease Prevalence, Intensity, and Kin Structure Within the Eastern Oyster, Crassostrea Virginica, in Oyster Creek, Georgia written by Jessica Watts and published by . This book was released on 2019 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: The eastern oyster, Crassostrea virginica, is both an ecologically and economically important bivalve species that has experienced drastic population declines do to overharvest and habitat degradation. Populations that are impacted by anthropogenic stressors are further driven down by infections with protists like Haplosporidium nelsoni (MSX) and Perkinsus marinus (Dermo). In order to determine the prevalence and intensity of these detrimental infections, a survey was performed in Oyster Creek, Georgia. Of the oysters collected, 80% of them were infected with a single protist or both at relatively low intensities. The infection intensity was variable throughout the creek, whereas the infection prevalence was not variable. Microsatellites were used in order to determine kinship within Oyster Creek and it was found that oysters that were closely related (i.e. full/half/quarter siblings) were more likely to be located on the same reef patch than on different patches.
Book Synopsis Changes in the Growth, Metabolism, Disease Levels and Energy Budget of the American Oyster, Crassostrea Virginica Induced by an Ectoparasitic Gastropod, Boonea Impressa by : Marie Elinor White
Download or read book Changes in the Growth, Metabolism, Disease Levels and Energy Budget of the American Oyster, Crassostrea Virginica Induced by an Ectoparasitic Gastropod, Boonea Impressa written by Marie Elinor White and published by . This book was released on 1986 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Whole Animal and Gill Tissue Oxygen Uptake in the Eastern Oyster, Crassostrea Virginica by : Libby Lucinda Willson
Download or read book Whole Animal and Gill Tissue Oxygen Uptake in the Eastern Oyster, Crassostrea Virginica written by Libby Lucinda Willson and published by . This book was released on 1999 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cellular Responses of Eastern Oysters, Crassostrea Virginica, to Titanium Dioxide Nanoparticles by : Brian Daniel Johnson
Download or read book Cellular Responses of Eastern Oysters, Crassostrea Virginica, to Titanium Dioxide Nanoparticles written by Brian Daniel Johnson and published by . This book was released on 2013 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the continued development and production of a variety of nanomaterials and nanoparticles, their uptake and effects on the biota of marine ecosystems is a concern. In estuarine environments, where these nanomaterials are likely to accumulate, agglomeration rates, interaction with organics, and response to UV radiation are critical in determining the extent of their biological impact. Bivalve molluscs are filter feeders and are highly adapted to internalize nano and micro-sized particles through endocytosis. Because of their filtering abilities and abundance they are commonly used as indicator species for marine contamination. In this study adult eastern oysters, Crassostrea virginica, were exposed to a range of titanium dioxide nanoparticle (Ti02-NP) concentrations (5, 50, 500, and 5000 pg/L) in conjunction with natural UV radiation. In addition, isolated hepatopancreas, gill, and mantle tissues were isolated and exposed to the same Ti02-NP concentrations under similar UV conditions. Analysis of particle size using dynamic light scattering (DLS) reveled agglomeration rates increased with an increase in concentration. Concentration had a significant impact on agglomeration rates, which was in agreement with the dose dependent decrease in lysosomal stability in both the adult oysters as well as in the isolated tissue. Isolated tissues showed accumulation of titanium mainly in the hepatopancreas, which demonstrated a direct correlation to lysosomal stability. Measurements of lipid peroxidation (LPx) as an indicator of oxidative stress did not support the hypothesis that an increase in toxicity will result from exposure to UV radiation. It did however show decreased LPx in the gill and mantle tissue of the adult oysters, suggesting a possible increase in antioxidants in response to the TiC2-NPs. Generally, this study illustrates the possibility of low concentrations of TiO2-NPS to demonstrate sublethal toxicity on oysters, which might be enhanced due to UV radiation.
Book Synopsis Trace Metal Bioavailability in Southeastern United States Estuaries by : Peter B. Jenkins
Download or read book Trace Metal Bioavailability in Southeastern United States Estuaries written by Peter B. Jenkins and published by . This book was released on 2001 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonnative Oysters in the Chesapeake Bay by : National Research Council
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.
Book Synopsis The Immune Response of the Eastern Oyster Crassostrea Virginica by : Heidi Rachel Williams
Download or read book The Immune Response of the Eastern Oyster Crassostrea Virginica written by Heidi Rachel Williams and published by . This book was released on 2008 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eastern oyster, Crassostrea virginica, is constantly exposed to microorganisms and pollutants in the surrounding environment. While cadmium (Cd) has been shown to alter specific immune defense mechanisms, the direct effect of Cd on the inactivation and degradation of bacteria in this animal is unknown. Furthermore, the roles of individual tissues in the distribution, inactivation and degradation of live bacteria introduced into the host remain unclear. First, we determined the effect of Cd on the immune responses of C. virginica at the organismal, cellular and molecular level. Following a chronic Cd exposure, oysters were injected in the adductor muscle with 105 live Vibrio campbellii. Quantitative real-time polymerase chain reaction (Q-PCR) was used to quantify the number of intact bacteria, while selective plating was used to quantify the number of injected bacteria that remained culturable within the tissues and fluids of the whole animal at 10, 30 and 60 min after injection. While Cd did not alter the oyster's ability to inactivate bacteria, Cd exposure induced a significant decrease in the numbers of circulating hemocytes and significant changes in the expression of selected genes as determined by microarray analysis. The gills, digestive gland and hemocytes mounted unique responses to chronic Cd exposure, yet the functional integrity of immune defense at the organismal level was maintained under these conditions. Second, we determined the relative contribution of individual tissues to the antibacterial response of C. virginica following injections of V. campbellii. Numbers of intact bacteria were used to identify sites of bacterial accumulation, while percentages of culturable bacteria were quantified to determine sites of bacteriostasis within the digestive gland, mantle, gills, adductor, gonadal tissues, labial palps and hemolymph at 10, 30, 60 and 120 min after injection. The gonadal tissues contained the greatest concentration of intact bacteria and the lowest percentage of culturable V. campbellii compared to all other tissues. We suggest that the gonadal tissues, when present, are the main site of bacterial accumulation and bacteriostasis. Overall, this study demonstrates the resilience of oysters to bacterial infections by their ability to inactivate bacteria.
Book Synopsis Aquatic Sciences and Fisheries Abstracts by :
Download or read book Aquatic Sciences and Fisheries Abstracts written by and published by . This book was released on 1986 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Intertidal Exposure on Disease, Mortality, and Growth of the Eastern Oyster, Crassostrea Virginica by : Jennafer Christine Malek
Download or read book The Effects of Intertidal Exposure on Disease, Mortality, and Growth of the Eastern Oyster, Crassostrea Virginica written by Jennafer Christine Malek and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tissue Distribution of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in the Adult Eastern Oyster (Crassostrea Virginica Gmelin) and Its Effect on Egg and Larval Survival by : Margy Lee Wintermyer
Download or read book Tissue Distribution of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in the Adult Eastern Oyster (Crassostrea Virginica Gmelin) and Its Effect on Egg and Larval Survival written by Margy Lee Wintermyer and published by . This book was released on 1998 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
