Gotowe bibliografie tematyczne / Oysters

Gotowa bibliografia na temat „Oysters”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 30 lipca 2024

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Artykuły w czasopismach na temat "Oysters"

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Chetveryk, O. V., i N. A. Kravchuk. "The research of the oyster’s market condition: current state and future perspective development on the basis of marketing". Bioeconomics and Agrarian Business 11, nr 1 (29.05.2020): 98–110. http://dx.doi.org/10.31548/bioeconomy2020.01.098.

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The article conducts a marketing study of the oyster market in Ukraine and in the world. In the article was analyze the current state and prospects for future perspective development of the oyster market in Ukraine. The possibility of developing the market of oysters and enterprises of the oyster industry under the conditions of marketing use is considered. The results of the study showed that fisheries in Ukraine are a promising area of agro-industrial production, which provides the population with valuable food and promotes employment. The marketing research was based on the analysis of the supply of oysters in the world and Ukraine, the volume of demand in the domestic market of Ukraine, the characteristics of the main producers of oysters. The analysis suggests that the leading countries in oyster farming are China, Japan and the United States. A study of the dynamics of oyster production in the world showed their constant growth, and in 2018 received 4.7 million tons of oysters. The supply on the domestic market of oysters in Ukraine consists of imports and direct domestic production: 90% - import, 10% - domestic production. Ukraine's oyster imports fell from $ 9.5 million. to 5.98 million dollars, but still occupies the lion's share. The largest domestic producers of oysters are next companies: Silveo LLC (38%), Odyssey LLC (20%), Ocean LLC (13%), Triton-chernomor Company (11%). Despite imports and low domestic production, oyster consumption in Ukraine remains low at 0.9 kg per person per year. The consistently low demand for sea-food and oysters, in particular, is due to the steady deterioration of the economic situation and low purchasing power of the population. A prerequisite for the long-term and perspective development of the oyster market and oyster’s cultivation enterprises is the use of marketing. The most popular for oyster’s enterprises are traditional and cognitive marketing. The most popular instruments of cognitive marketing for the oyster enterprises are creating social videos about cinnamon of seafood, including oysters, organizing of the food festivals and food festivals of the sea-products, have been thoroughly disseminated, as well as take part in other trips, organizing tasting events at the festival and other.
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Lacoste, Arnaud, Fabienne Jalabert, Shelagh K. Malham, Anne Cueff i Serge A. Poulet. "Stress and Stress-Induced Neuroendocrine Changes Increase the Susceptibility of Juvenile Oysters (Crassostrea gigas) to Vibrio splendidus". Applied and Environmental Microbiology 67, nr 5 (1.05.2001): 2304–9. http://dx.doi.org/10.1128/aem.67.5.2304-2309.2001.

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ABSTRACT Oysters are permanently exposed to various microbes, and their defense system is continuously solicited to prevent accumulation of invading and pathogenic organisms. Therefore, impairment of the animal's defense system usually results in mass mortalities in cultured oyster stocks or increased bacterial loads in food products intended for human consumption. In the present study, experiments were conducted to examine the effects of stress on the juvenile oyster's resistance to the oyster pathogen Vibrio splendidus. Oysters (Crassostrea gigas) were challenged with a low dose of a pathogenic V. splendidus strain and subjected to a mechanical stress 3 days later. Both mortality andV. splendidus loads increased in stressed oysters, whereas they remained low in unstressed animals. Injection of noradrenaline or adrenocorticotropic hormone, two key components of the oyster neuroendocrine stress response system, also caused higher mortality and increased accumulation of V. splendidus in challenged oysters. These results suggest that the physiological changes imposed by stress, or stress hormones, influenced host-pathogen interactions in oysters and increased juvenile C. gigasvulnerability to Vibrio splendidus.
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Gilbert, Scott F. "Shells, Gills, and Gonads". Historical Studies in the Natural Sciences 53, nr 3 (1.06.2023): 221–41. http://dx.doi.org/10.1525/hsns.2023.53.3.221.

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The Atlantic oyster of Chesapeake Bay has been the focus of intense economic and ecological pressures. In the 1880s it was the main source for America’s favorite food, and the oyster was overharvested to the point of scarcity. Three scientific discoveries concerning the oyster’s material properties have been paving its way back from the brink of extinction. First, William Keith Brooks studied the embryology of this oyster and showed that its shell served as a necessary part of its life cycle. Second, Roger Newell demonstrated the prodigious water filtration properties of this oyster and linked these properties to its ability to clean the estuary. The discovery of the filtration properties of the oyster was an affordance that enabled the oyster to “partner” with governmental agencies and NGOs who were attempting to restore the bay’s clean water, fish, and birdlife. Third, Standish K. Allen, Ximing Guo, and their colleagues formulated a procedure that enabled the manipulation of oyster development to yield tasty, fast-growing, and disease-resistant triploid oysters. The disease-resistant oysters together with knowledge of the oyster’s life cycle enabled the proliferation of the oyster by conservation groups. The goal of Chesapeake Bay conservation changed from “Save the oyster” to “Plant more oysters; help save the bay.” This paper is part of a special issue entitled “Making Animal Materials in Time,” edited by Laurence Douny and Lisa Onaga.
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Cox, Clayton E., Anita C. Wright, Michael McClelland i Max Teplitski. "Influence of Salmonella enterica Serovar TyphimuriumssrBon Colonization of Eastern Oysters (Crassostrea virginica) as Revealed by a Promoter Probe Screen". Applied and Environmental Microbiology 82, nr 1 (23.10.2015): 328–39. http://dx.doi.org/10.1128/aem.02870-15.

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ABSTRACTAlthoughSalmonellahas been isolated from 7.4 to 8.6% of domestic raw oysters, representing a significant risk for food-borne illness, little is known about the factors that influence their initial colonization bySalmonella. This study tested the hypothesis that specific regulatory changes enable a portion of the invadingSalmonellapopulation to colonize oysters. Anin vivopromoter probe library screen identified 19 unique regions as regulated during colonization. The mutants in the nearest corresponding downstream genes were tested for colonization defects in oysters. Only one mutation, inssrB, resulted in a significantly reduced ability to colonize oysters compared to that of wild-typeSalmonella. BecausessrBregulatesSalmonellapathogenicity island 2 (SPI-2)-dependent infections in vertebrate macrophages, the possibility thatssrBmediated colonization of oyster hemocytes in a similar manner was examined. However, no difference in hemocyte colonization was observed. The complementary hypothesis that signal exchange betweenSalmonellaand the oyster's native microbial community aids colonization was also tested. Signals that triggered responses in quorum sensing (QS) reporters were shown to be produced by oyster-associated bacteria and present in oyster tissue. However, no evidence for signal exchange was observedin vivo. ThesdiAreporter responded to salinity, suggesting that SdiA may also have a role in environmental sensing. Overall, this study suggests the initial colonization of live oysters bySalmonellais controlled by a limited number of regulators, includingssrB.
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Froelich, Brett A., i Rachel T. Noble. "Factors Affecting the Uptake and Retention of Vibrio vulnificus in Oysters". Applied and Environmental Microbiology 80, nr 24 (26.09.2014): 7454–59. http://dx.doi.org/10.1128/aem.02042-14.

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ABSTRACTVibrio vulnificus, a bacterium ubiquitous in oysters and coastal water, is capable of causing ailments ranging from gastroenteritis to grievous wound infections or septicemia. The uptake of these bacteria into oysters is often examinedin vitroby placing oysters in seawater amended withV. vulnificus. Multiple teams have obtained similar results in studies where laboratory-grown bacteria were observed to be rapidly taken up by oysters but quickly eliminated. This technique, along with suggested modifications, is reviewed here. In contrast, the natural microflora within oysters is notoriously difficult to eliminate via depuration. The reason for the transiency of exogenous bacteria is that those bacteria are competitively excluded by the oyster's preexisting microflora. Evidence of this phenomenon is shown usingin vitrooyster studies and a multiyearin situcase study. Depuration of the endogenous oyster bacteria occurs naturally and can also be artificially induced, but both of these events require extreme conditions, natural or otherwise, as explained here. Finally, the “viable but nonculturable” (VBNC) state ofVibriois discussed. This bacterial torpor can easily be confused with a reduction in bacterial abundance, as bacteria in this state fail to grow on culture media. Thus, oysters collected from colder months may appear to be relatively free ofVibriobut in reality harbor VBNC cells that respond to exogenous bacteria and prevent colonization of oyster matrices. Bacterial-uptake experiments combined with studies involving cell-free spent media are detailed that demonstrate this occurrence, which could explain why the microbial community in oysters does not always mirror that of the surrounding water.
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BRILLHART, CRYSTAL D., i LYNN A. JOENS. "Prevalence and Characterization of Salmonella Serovars Isolated from Oysters Served Raw in Restaurants". Journal of Food Protection 74, nr 6 (1.06.2011): 1025–29. http://dx.doi.org/10.4315/0362-028x.jfp-10-443.

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To determine if Salmonella-contaminated oysters are reaching consumer tables, a survey of raw oysters served in eight Tucson restaurants was performed from October 2007 to September 2008. Salmonella spp. were isolated during 7 of the 8 months surveyed and were present in 1.2% of 2,281 oysters tested. This observed prevalence is lower than that seen in a previous study in which U.S. market oysters were purchased from producers at bays where oysters are harvested. To test whether the process of refrigerating oysters in restaurants for several days reduces Salmonella levels, oysters were artificially infected with Salmonella and kept at 4°C for up to 13 days. Direct plate counts of oyster homogenate showed that Salmonella levels within oysters did not decrease during refrigeration. Six different serovars of Salmonella enterica were found in the restaurant oysters, indicating multiple incidences of Salmonella contamination of U.S. oyster stocks. Of the 28 contaminated oysters, 12 (43%) contained a strain of S. enterica serovar Newport that matched by pulsed-field gel electrophoresis a serovar Newport strain seen predominantly in the study of bay oysters performed in 2002. The repeated occurrence of this strain in oyster surveys is concerning, since the strain was resistant to seven antimicrobials tested and thus presents a possible health risk to consumers of raw oysters.
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Kecinski, Maik, Kent D. Messer, Lauren Knapp i Yosef Shirazi. "Consumer Preferences for Oyster Attributes: Field Experiments on Brand, Locality, and Growing Method". Agricultural and Resource Economics Review 46, nr 2 (18.07.2017): 315–37. http://dx.doi.org/10.1017/age.2017.21.

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Oyster aquaculture has experienced tremendous growth in the United States over the past decade, but little is known about consumer preferences for oysters. This study analyzed preferences for oysters with varied combinations of brands, production locations, and production methods (aquaculture vs. wild-caught) using dichotomous choice, revealed preference economic field experiments. Results suggest significant and distinct differences in behavior between first-time and regular oyster consumers. While infrequent oyster consumers were drawn to oysters labeled as wild-caught, experienced oyster consumers preferred oysters raised via aquaculture. These findings will be valuable for growers and policymakers who invest in aquaculture to improve surrounding ecosystems.
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Okronipa, Harriet, Alyssa Abreu, Katie Fiorella, Helena Bentil, Seth Adu-Afarwuah i Brietta Oaks. "Fishery Management Practices and Oyster Consumption Among Oyster-Harvesting Communities in Ghana". Current Developments in Nutrition 6, Supplement_1 (czerwiec 2022): 595. http://dx.doi.org/10.1093/cdn/nzac060.053.

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Abstract Objectives Sustainable management of fisheries is important for improving nutrition and food security. In 2017, an oyster harvesters’ association in Ghana began implementing a 5-month (Nov-Apr) closed season to improve oyster yields of the Densu estuary. It is unknown how much oysters contribute to the diet of women during the open season and whether there is a substantial reduction in oyster consumption during the closed season This study aimed to examine oyster consumption during the open and closed seasons and the perception of the closed season. Methods We recruited women (n = 137) residing in 4 major communities located near the Densu estuary in the Ga-South Municipality of Ghana. We collected data on oyster harvesting and consumption using a survey and a 30-day food frequency questionnaire during the closed (March 2020) and open (August 2020) seasons. The amount of oysters consumed was determined by converting reported portion sizes to grams using average wet weights of oysters purchased in the study area. We used McNemar's test for paired samples to compare differences in the proportion of women who consumed oysters, and Wilcoxon signed-rank test to compare differences in the amount of oysters consumed. Results A majority (63%) of the women were oyster harvesters. Significantly higher proportion of women consumed oysters in the 30 days preceding the interview during the open compared to the closed season (57% vs 13%, p < 0.0001). Among those who consumed oysters, the mean ± SD oysters (wet weight) consumed at a sitting was 218.4 ± 114.7 g, equivalent to 60 oysters, and did not differ between the open (211.6 ± 119.9 g) and closed ((242.8 ± 92.6 g) seasons (P = 0.73). The majority of women were aware of the closed season (87%) and viewed it positively (85%). Conclusions The majority of women in these communities consume oysters during the open season, and are in support of the closed season. Considering that a smaller percentage of women consumed oysters during the closed season, additional research is warranted to further examine the aggregate impacts of oyster management in Ghana on nutrition and household food insecurity, considering both consumption and income impacts. Funding Sources University of Rhode Island.
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Zhang, Ruihua, Xujun Chen, Zhengzhong Wan, Meng Wang i Xinqing Xiao. "Deep Learning-Based Oyster Packaging System". Applied Sciences 13, nr 24 (8.12.2023): 13105. http://dx.doi.org/10.3390/app132413105.

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With the deepening understanding of the nutritional value of oysters by consumers, oysters as high-quality seafood are gradually entering the market. Raw edible oyster production lines mainly rely on manual sorting and packaging, which hinders the improvement of oyster packaging efficiency and quality, and it is easy to cause secondary oyster pollution and cross-contamination, which results in the waste of oysters. To enhance the production efficiency, technical level, and hygiene safety of the raw aquatic products production line, this study proposes and constructs a deep learning-based oyster packaging system. The system achieves intelligence and automation of the oyster packaging production line by integrating the deep learning algorithm, machine vision technology, and mechanical arm control technology. The oyster visual perception model is established by deep learning object detection techniques to realize fast and real-time detection of oysters. Using a simple online real-time tracking (SORT) algorithm, the grasping position of the oyster can be predicted, which enables dynamic grasping. Utilizing mechanical arm control technology, an automatic oyster packaging production line was designed and constructed to realize the automated grasping and packaging of raw edible oysters, which improves the efficiency and quality of oyster packaging. System tests showed that the absolute error in oyster pose estimation was less than 7 mm, which allowed the mechanical claw to consistently grasp and transport oysters. The static grasping and packing of a single oyster took about 7.8 s, and the success rate of grasping was 94.44%. The success rate of grasping under different transportation speeds was above 68%.
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LIU, CHENGCHU, RUIYING CHEN i YI-CHENG SU. "Bactericidal Effects of Wine on Vibrio parahaemolyticus in Oysters". Journal of Food Protection 69, nr 8 (1.08.2006): 1823–28. http://dx.doi.org/10.4315/0362-028x-69.8.1823.

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The bactericidal effects of wines on Vibrio parahaemolyticus in oysters were studied to evaluate potential inactivation of V. parahaemolyticus in contaminated oysters by wine consumption. Shucked whole oyster and oyster meat homogenate were inoculated with V. parahaemolyticus and mixed with red or white wine. Survivals of V. parahaemolyticus in inoculated oysters were determined at 7 and 25°C. Populations of V. parahaemolyticus in inoculated whole oysters (5.52 log most probable number [MPN] per g) decreased slightly to 4.90 log MPN/g (a 0.62-log reduction) after 24 h at 7°C but increased to 7.37 log MPN/g over the same period at 25°C. However, the populations in wine-treated whole oysters decreased by >1.7 and >1.9 log MPN/g after 24 h at 7 and 25°C, respectively. Both red and white wines were more effective in inactivating V. parahaemolyticus in oyster meat homogenate than in whole oyster. Populations of V. parahaemolyticus in oyster meat homogenate (7.8 × 103 MPN/g) decreased rapidly to nondetectable levels (<3 MPN/g) after 30 min of mixing with wine at 25°C (a 3.89-log MPN/g reduction). These results suggest that chewing oysters before swallowing when eating raw oysters may result in greater inactivation of V. parahaemolyticus if wine is consumed. More studies are needed to determine the bactericidal effects of wine on V. parahaemolyticus in the complicated stomach environment.
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Rozprawy doktorskie na temat "Oysters"

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Harding, Juliana Maria. "Ecological interactions between benthic oyster reef fishes and oysters". W&M ScholarWorks, 2000. https://scholarworks.wm.edu/etd/1539616684.

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Restoration of oyster reef structures rehabilitates habitats and the multi-level ecological communities built on eastern oysters (Crassostrea virginica), the keystone species. Quantitative descriptions of ecological interactions within a habitat are required to delineate essential fish habitats for management and protection. Parallel development of primary (oysters) and secondary trophic levels (benthic fishes) offer an ecological metric of restoration progress over time. The interaction between larval oysters and larval fishes (e.g., Gobiosoma bosc, Chasmodes bosquianus) is quantitatively examined. Oyster settlement estimates for Palace Bar reef, Piankatank River, Virginia are of the same order of magnitude as field densities of recently settled oysters. Benthic fish settlement estimates are within an order of magnitude of observed adult densities. Zooplankton community composition around the reef is temporally variable and plankton densities range from 10 2--106 animals per m3 across temporal scales. Nocturnal densities of naked goby and striped blenny larvae around Palace Bar reef were 3 to 4 orders of magnitude higher than densities observed during daylight hours. Diurnal changes in larval fish abundance near Palace Bar reef are related to ambient light intensities and diurnal vertical migration by prey species. Naked goby, striped blenny, and feather blenny (Hypsoblennius hentzi) larvae selectively consumed bivalve veligers, in multi-factorial laboratory feeding experiments. Temporal co-occurrence of larval oysters and larval fishes was not observed in 1996 field collections although historic oyster settlement data strongly support the probability of co-occurrence during most years. Two different methods are used to estimate the larval oyster - larval fish interaction in the absence of field data. Given existing oyster and fish demographics on Palace Bar reef, larval fishes have the capacity to drastically reduce, perhaps eliminate, local veliger populations if they co-occur. The strength of this interaction is directly related to oyster demography-fecundity relationships. In the absence of veligers, larval fishes consume other plankton taxa that are abundant around the reef. Naked gobies and striped blennies are generalists. Oyster reefs provide optimal rather than essential habitat. Reef restoration will facilitate development of related ecological communities by providing optimal habitat conditions for these ubiquitous estuarine species.
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Fogelson, Susan B. "Effects of anoxia of histology, bacteriology, condition index, glycogen levels, and fecundity in the Eastern oyster Crassostrea virginica". Auburn, Ala, 2007. http://repo.lib.auburn.edu/2007%20Spring%20Theses/fogelson_susan_26.pdf.

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Colosimo, Sara L. "Comparison of Perkinsus marinus infection and oyster condition in southeastern North Carolina tidal creeks /". Electronic version (PDF), 2007. http://dl.uncw.edu/etd/2007-2/colosimos/saracolosimo.pdf.

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Chiu, May-chun Helen. "The ecology and energetics of Saccostrea cucullata (Born) : (Bivalvia : Ostreidae) in Hong Kong /". Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18597270.

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Perera, Percy. "Heavy metal concentrations in the Pacific oyster Crassostrea gigas thesis submitted in partial fulfilment of the degree of Master of Applied Science, Auckland University of Technology, September 2004". Full thesis. Abstract, 2004.

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Rubio, Ana M. "Environmental influences on the sustainable production of the Sydney rock oyster Saccostrea glomerata : a study in two Southeastern Australian estuaries /". View thesis entry in Australian Digital Theses Program, 2007. http://thesis.anu.edu.au/public/adt-ANU20080618.091057/index.html.

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Smeilus, Sarah E. "Effects of stock origin on the growth and survival of the eastern oyster, Crassostrea virginica, in southeastern North Carolina /". Electronic version (Miscrosoft Word), 2006. http://dl.uncw.edu/etd/2006/smeiluss/sarahsmeilus.doc.

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Carnegie, Ryan. "Distribution and Impact of the Oyster Parasite Bonamia Ostreae in Maine, and its Detection Using DNA Probes". Fogler Library, University of Maine, 2000. http://www.library.umaine.edu/theses/pdf/CarnegieRB2000.pdf.

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Zwerschke, Nadescha. "Ecological impacts of the spread of non-native oysters and interactions with native oysters". Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709886.

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Non-native species can have negative effects on local ecosystems by interrupting ecosystem functioning and altering biodiversity. Non-native ecosystem engineers, such as oysters, may have substantial impacts on ecosystems, by altering the physical structure of habitats and changing ecological processes within an invaded community. The non-native Pacific oyster, Crassostrea gigas, was introduced to Europe to revive the aquaculture industry, which was weakened following the decline of the native European flat oyster, Ostrea edulis. The introduction of C. gigas and subsequent natural proliferation in many coastal regions of Europe has caused great controversy in the scientific community. Initially, it was argued that C. gigas would have detrimental effects on the recovery of 0. edulis beds and alter the functioning of invaded coastal ecosystems. It has also been argued, however, that the spread of C. gigas often increased local biodiversity and reduced the impacts of coastal erosion. To assess the impact of C. gigas explicitly based on robust empirical evidence, an extensive survey and three field-based experiments were carried out. The aims were to: (i) identify and describe the current distribution of G. gigas populations in Ireland; (ii) test for direct effects of C. gigas on native 0. edulis beds; and (iii) characterise the functional ecology of C. gigas and compare it with the morphologically similar native species, 0. edulis.
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Artabane, Stephen J. "The effects of proximity to a subtidal channel on habitat utilization of intertidal oyster reefs /". Electronic version (PDF), 2006. http://dl.uncw.edu/etd/2006/artabanes/stephenartabane.pdf.

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Książki na temat "Oysters"

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Andrew, Jaeger, red. Oysters. Berkeley, Calif: CelestialArts, 1999.

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Allen, Standish K. Hatchery manual for producing triploid oysters. Seattle, Wash: Washington Sea Grant Program, 1989.

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Narasimham, K. A. Textbook of oyster biology and culture in India. New Delhi: Directorate of Information and Publications of Agriculture, 2007.

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Coen, Loren D. Managing oysters in South Carolina: A five year program to enhance/restore shellfish stocks and reef habitats through shell planting and technology improvements. Charleston, S.C: Marine Resources Center, SCDNR, 2011.

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Burrage, David D. Revitalizing a northern gulf coast oyster fishery: Determination of the cost versus benefits from relaying oysters. [Newport, Or: National Coastal Resources Research and Development Institute], 1991.

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Witney, E. Oyster culture in Queensland. Brisbane: Dept. of Primary Industries, Queensland Government, 1988.

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Queensland. Department of Primary Industries, red. The Queensland oyster fishery: An illustrated history. Brisbane: Queensland Dept. of Primary Industry, 1985.

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Soniat, Thomas M. Gulf of Mexico oyster bibliography. Galveston, Tex. (P.O. Box 1675, Galveston 77553-1675): Sea Grant College Program, Texas A&M University, 1992.

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Hedeen, Robert A. The oyster: The life and lore of the celebrated bivalve. Centreville, Md: Tidewater Publishers, 1986.

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Bosch, Darrell J. Reversing the decline of private oyster planting in the Chesapeake Bay: An evaluation of policy strategies. Blacksburg, Va: Virginia Agricultural Experiment Station, Virginia Polytechnic Institute and State University, 1990.

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Części książek na temat "Oysters"

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Hazeem, Layla J., Mohamed Yusuf i Hashim Al-Sayed. "Pearl oysters in Bahrain". W Coral Reefs and Associated Marine Fauna around the Arabian Peninsula, 145–52. London: CRC Press, 2024. http://dx.doi.org/10.1201/9781003321392-14.

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"Oysters". W How Not to Make a Human, 135–64. University of Minnesota Press, 2019. http://dx.doi.org/10.5749/j.ctvsn3ns7.8.

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"Oysters". W Porcher's Creek, 29–35. University of South Carolina Press, 2020. http://dx.doi.org/10.2307/j.ctvzgb6s4.11.

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"Oysters". W Landscape with Human Figure, 25. Duke University Press, 2002. http://dx.doi.org/10.1215/9780822383413-012.

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"Oysters". W Landscape with Human Figure, 25. Duke University Press, 2020. http://dx.doi.org/10.1515/9780822383413-013.

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Gopakumar, K., i Balagopal Gopakumar. "Oysters". W Health Foods from Ocean Animals, 29–41. CRC Press, 2020. http://dx.doi.org/10.1201/9781003084242-3.

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"Oysters". W Nutritional Marine Life, 114–45. CRC Press, 2014. http://dx.doi.org/10.1201/b17844-9.

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"Oysters". W Landscape with Human Figure, 25. Duke University Press, 2002. http://dx.doi.org/10.2307/j.ctv1198vs7.15.

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Walton, William C., i Darien D. Mizuta. "Oysters". W Reference Module in Food Science. Elsevier, 2022. http://dx.doi.org/10.1016/b978-0-323-85125-1.00158-7.

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"Oysters". W Taste the State, 108–10. University of South Carolina Press, 2021. http://dx.doi.org/10.2307/j.ctv19cw9qd.47.

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Streszczenia konferencji na temat "Oysters"

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Umehara, Akira, Akira Umehara, Satoshi Asaoka, Satoshi Asaoka, Naoki Fujii, Naoki Fujii, Sosuke Otani i in. "ENERGY TRANSFER EFFICIENCIES ON LOWER TROPHIC LEVELS WITH INTENSIVE OYSTER FARMING IN HIROSHIMA BAY, JAPAN". W Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b938e9b6054.06820491.

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In enclosed water areas, organic matters are actively produced by phytoplankton due to abundant nutrient supply from the rivers. In our study area of the semi-enclosed Hiroshima Bay, oyster farming consuming high primary production has been developed since the 1950s, and the oyster production of Hiroshima prefecture have had the largest market share (ca. 60%) in Japan. In this study, species composition of phytoplankton, primary production, and secondary production of net zooplanktons and oysters were determined seasonally at seven stations in the bay between November 2014 and August 2015. In the bay, diatoms including Skeletonema costatum dominated during the period of the study. The primary productions markedly increased during summer (August), and its mean values in the northern part of the bay (NB) and the southern part (SB) were 530 and 313 mgC/m2/d, respectively. The productions of net zooplankton and oyster increased during the warm season, and its mean values in the NB were 14 and 1.2 mgC/m2/d, and in SB were 28 and 0.9 mgC/m2/d, respectively. The energy transfer efficiencies from the primary producers to the secondary producers in the NB and SB were 2.8% and 9.1%, respectively. However, the transfer efficiency to the oysters was approximately 0.3% in the bay. This study clearly showed the spatial difference of the productions and transfer efficiencies, and the low contribution of the production of oysters in secondary productions in Hiroshima Bay.
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Umehara, Akira, Akira Umehara, Satoshi Asaoka, Satoshi Asaoka, Naoki Fujii, Naoki Fujii, Sosuke Otani i in. "ENERGY TRANSFER EFFICIENCIES ON LOWER TROPHIC LEVELS WITH INTENSIVE OYSTER FARMING IN HIROSHIMA BAY, JAPAN". W Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b43169dc569.

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In enclosed water areas, organic matters are actively produced by phytoplankton due to abundant nutrient supply from the rivers. In our study area of the semi-enclosed Hiroshima Bay, oyster farming consuming high primary production has been developed since the 1950s, and the oyster production of Hiroshima prefecture have had the largest market share (ca. 60%) in Japan. In this study, species composition of phytoplankton, primary production, and secondary production of net zooplanktons and oysters were determined seasonally at seven stations in the bay between November 2014 and August 2015. In the bay, diatoms including Skeletonema costatum dominated during the period of the study. The primary productions markedly increased during summer (August), and its mean values in the northern part of the bay (NB) and the southern part (SB) were 530 and 313 mgC/m2/d, respectively. The productions of net zooplankton and oyster increased during the warm season, and its mean values in the NB were 14 and 1.2 mgC/m2/d, and in SB were 28 and 0.9 mgC/m2/d, respectively. The energy transfer efficiencies from the primary producers to the secondary producers in the NB and SB were 2.8% and 9.1%, respectively. However, the transfer efficiency to the oysters was approximately 0.3% in the bay. This study clearly showed the spatial difference of the productions and transfer efficiencies, and the low contribution of the production of oysters in secondary productions in Hiroshima Bay.
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Sverdlov, Eli, i Ilan Bouni. "Pelephone oysters". W ACM SIGGRAPH ASIA 2009 Computer Animation Festival. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1665208.1665264.

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Bouni, Ilan, i Gravity Rhino Group. "Pelephone oysters". W ACM SIGGRAPH ASIA 2010 Computer Animation Festival. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/1900264.1900340.

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Zheng, Yizhe, Yizhe Zheng, Kyohei Hayashi, Kyohei Hayashi, Takumi Matsuno, Takumi Matsuno, Megumu Fujibayashi i in. "INTERACTIONS BETWEEN BIOGEOCHEMICAL ENVIRONMENT AND SUSPENDED OYSTER FARMING IN SHIZUGAWA BAY, JAPAN". W Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b9392311d49.71091477.

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The impacts of human-induced changes in coastal environments on shellfish farming need to be mitigated. Suspended farming species, such as oysters, greatly impact planktonic communities and benthic environments via filter feeding and bio-deposition. To more effec-tively manage coastal environments and achieve ecologically sustainable shellfish farming, interactions between coastal marine environments and aquaculture activities need to be properly assessed. We examined interactions between coastal biogeochemical environments and suspended oyster farming in Shizugawa Bay of northeastern Japan. We found that particulate organic matter (POM) produced at the oyster farm (e.g., exfoliated periphyton and/or oyster feces) locally increased the concentrations of chlorophyll a and daytime dis-solved oxygen in the bottom layer. Based on the estimated budget of POM at the bay scale, the oyster feeding rate was a couple of orders of magnitude lower than the net primary production and POM inputs at the bay boundaries (e.g., offshore and in rivers). The rela-tively high exposure of the bay and high seawater mixing rate may explain the lack of mac-roscale environmental impacts of oyster cultures at the bay scale. We also found that despite the oligotrophic environment, the oyster growth rate was higher in the bay, compared with previous estimates in other coastal areas. To understand the mechanisms sustaining the production of phytoplankton and oysters, further examinations from the perspective of nu-trient cycling in the bay are required.
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Tickle, Evelyn. "Oyster Hack". W 2018 ACSA International Conference. ACSA Press, 2018. http://dx.doi.org/10.35483/acsa.intl.2018.57.

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There is a state of emergency in the USA- catastrophic coastal erosion, rising sea levels at the rate of one-eighth of an inch per year and poor water quality. Oysters can help. Oysters filter the water, removing toxins. Oyster reefs are living infra-structures that protect coastlines from storms and tidal surges. But…many of the world’s existing oyster reefs are functionally impaired. The Chesapeake Bay is dying. Untreated chemical run-off and human waste is creating ‘Dead Zones’ where there is no oxygen to support marine life. Much of Hurricane Sandy’s damage to New York City could have been prevented. In the early 1800’s the Harbor was lined with living oyster reefs. Now, these are dead or dying, fragile and vulnerable. Miami is flooded on a regular basis reports Miami Herald. Our oyster reefs must be revived or rebuilt- they will help. Walls are not the answer. 14% of US coastal cities have massive sea-walls already. National Geographic reports that by 2100 one-third of our coastal cities will be protected by walls, that cost billions of dollars and will not provide protection from the most severe storms. I believe in the power of the oyster. The oyster is an engineer- its reefs and shells work together as a “system of systems” to protect our waters and coastlines. Without them we are sunk, literally, no matter how many engineered systems we humans try to substitute and pay billions of dollars to implement.
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Zheng, Yizhe, Yizhe Zheng, Kyohei Hayashi, Kyohei Hayashi, Takumi Matsuno, Takumi Matsuno, Megumu Fujibayashi i in. "INTERACTIONS BETWEEN BIOGEOCHEMICAL ENVIRONMENT AND SUSPENDED OYSTER FARMING IN SHIZUGAWA BAY, JAPAN". W Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4316a2d899.

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The impacts of human-induced changes in coastal environments on shellfish farming need to be mitigated. Suspended farming species, such as oysters, greatly impact planktonic communities and benthic environments via filter feeding and bio-deposition. To more effec-tively manage coastal environments and achieve ecologically sustainable shellfish farming, interactions between coastal marine environments and aquaculture activities need to be properly assessed. We examined interactions between coastal biogeochemical environments and suspended oyster farming in Shizugawa Bay of northeastern Japan. We found that particulate organic matter (POM) produced at the oyster farm (e.g., exfoliated periphyton and/or oyster feces) locally increased the concentrations of chlorophyll a and daytime dis-solved oxygen in the bottom layer. Based on the estimated budget of POM at the bay scale, the oyster feeding rate was a couple of orders of magnitude lower than the net primary production and POM inputs at the bay boundaries (e.g., offshore and in rivers). The rela-tively high exposure of the bay and high seawater mixing rate may explain the lack of mac-roscale environmental impacts of oyster cultures at the bay scale. We also found that despite the oligotrophic environment, the oyster growth rate was higher in the bay, compared with previous estimates in other coastal areas. To understand the mechanisms sustaining the production of phytoplankton and oysters, further examinations from the perspective of nu-trient cycling in the bay are required.
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Abu-El Humos, Ali, K. Ali, A. Ukpebor, M. Hasan, J. Addy i A. Abu-El Humos. "Oysters' Gape Measurement System". W 2019 International Conference on Computational Science and Computational Intelligence (CSCI). IEEE, 2019. http://dx.doi.org/10.1109/csci49370.2019.00234.

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Sadrfaridpour, Behzad, Yiannis Aloimonos, Miao Yu, Yang Tao i Donald Webster. "Detecting and Counting Oysters". W 2021 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2021. http://dx.doi.org/10.1109/icra48506.2021.9561268.

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AlShamary, Noora Mahmood AlJathelah, Debapriya Mondal i Hutchinson Simon. "Organic Pollutants along the Qatari Coast: A Case Study of the Pearl Oyster (Pinctada radiata)". W Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0007.

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The Qatari marine environment is endangered due to high industrial expansion and anthropogenic pressure over the last few decades. The presence of common contaminants such as total petroleum hydrocarbons (TPHs) and polycyclic aromatic hydrocarbons (PAHs) is a threat to the marine environment. The aim of this study is to determine the environmental threats and risks posed by organic contaminants to Qatar’s marine environment using pearl oyster ‘Pinctada Radiata’ as the indicator study organism. The samples (marine sediment, seawater, and oysters) were collected four times within two years in different seasons from the four sites (Simaisma, Al Khor, Umm Bab, and Al Wakra), on March 2017, December 2017, May 2018, and November 2018. A total of 144 samples were analyzed, 48 samples of seawater, 48 samples of sediment and 48 samples of oysters. Levels of organic contaminants (TPHs and PAHs) were quantified in seawater, marine sediment and oyster tissues (P. radiata). In addition, the TOC and particle sizes were measured in abiotic matrices as well as the temperature, salinity, and pH of seawater in the study areas. Overall, the organic contaminants (TPHs and PAHs) were more readily detected in oyster tissue samples than marine sediment and seawater samples collected from the same areas. The surface seawater samples showed negligible levels of PAHs, while TPHs were ranged from 1.164 to 271.77 μg/L. The concentration of TPHs and PAHs in surface marine sediment were ranged between (75.02 -1751.82) and (4.25 - 36.73) μg/kg dry weight respectively. In oyster tissue samples, the level of TPHs was ranged from 633.33 to 6666.67 μg/kg dry weight, with the highest concentrations measured in Simaisma, while PAHs concentration showed an extreme variation from 25.90 to 2244.03μg/kg dry weight. The present study could, however, provide useful background information for further investigations to understand the presence of organic contaminants in Qatar’s marine environment.
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Raporty organizacyjne na temat "Oysters"

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Blake A Busch, Blake A. Busch. Where are Rhode Island's Remaining Native Oysters? Experiment, styczeń 2023. http://dx.doi.org/10.18258/47700.

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Peter Girguis, Peter Girguis. Do seawater microbes help oysters cope with ocean acidification? Experiment, kwiecień 2023. http://dx.doi.org/10.18258/50593.

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Altman, Safra, R. Harris, S. McKay, Michael Kjelland i Todd Swannack. Oyster reef connectivity : ecological benefits and associated vulnerabilities. Engineer Research and Development Center (U.S.), sierpień 2022. http://dx.doi.org/10.21079/11681/45020.

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Global oyster abundance has declined ~85 % over the past 200 years, primarily because of overharvesting (Beck, Brumbaugh, and Airoldi 2011; Kirby 2004). Healthy oyster reef systems benefit the environment in many ways, including water-quality improvement, shoreline protection, increased biological and habitat diversity, and carbon sequestration. To maintain these environmental benefits, reef-restoration efforts that produce healthy, sustainable oyster reefs are essential. To this end, the US Army Corps of Engineers (USACE) has been involved in reef-restoration projects in many locations, including extensive efforts in the Chesapeake Bay (Virginia, Maryland), coastal regions of New York and New Jersey, and the Gulf of Mexico. There are many benefits to creating and maintaining oyster reef systems that are well connected, for both oysters and other organisms within the reef and surrounding habitats. This technical note presents the current knowledge of benefits and costs to restore oyster-reef connectivity along the East and Gulf Coasts of North America. Connectivity of oyster reefs can refer to the physical location of reefs with respect to one another as well as to the dynamics of the genetic links within a metapopulation or to the extent to which larval transport and recruitment unite reef communities. For the purposes of this technical note, connectivity is defined as the spatial aggregation of reefs, though we address impacts of genetic and larval flow as well. Reef connectivity positively affects many ecosystem services and dynamics but can also have unintended consequences (that is, negative externalities). This technical note reviews the benefits and costs of increasing connectivity and presents a brief example of how trade-offs may occur between these potentially opposing ecological objectives. Here, we focus on the eastern oyster, Crassostrea virginica, which inhabits the East and Gulf Coasts of North America, though many of the concepts and principles discussed may apply to other oyster species as well.
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Evans, Charlotte, Jacob Hargreaves, Victoria Cohen i Iulia Gherman. Risk assessment to support guidance for norovirus outbreaks in oysters. Food Standards Agency, październik 2023. http://dx.doi.org/10.46756/sci.fsa.gfv918.

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This assessment has been commissioned in response to recurring outbreaks of norovirus linked to the consumption of raw oysters. Each outbreak requires food safety and health protection resource to manage, as well as having a direct and indirect impact on consumers and on businesses involved, and further guidance has been requested to deal with norovirus outbreaks.
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Capelle, Jakob, i Pauline Kamermans. Feasibility study on culturing Pacific oysters in the Wadden Sea of Schleswig-Holstein. Yerseke: Wageningen Marine Research, 2017. http://dx.doi.org/10.18174/430123.

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Viliame Waqalevu, Viliame Waqalevu. Potential of the Rewa River oysters in enhancement of community livelihoods and resilience. Experiment, grudzień 2021. http://dx.doi.org/10.18258/23467.

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Struthers, Kim. Natural resource conditions at Fort Pulaski National Monument: Findings and management considerations for selected resources. National Park Service, grudzień 2023. http://dx.doi.org/10.36967/2300064.

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The National Park Service (NPS) Water Resources Division’s Natural Resource Condition Assessment (NRCA) Program initiated an NRCA project with Fort Pulaski National Monument (FOPU) in 2022. The purpose of an NRCA is to synthesize information related to the primary drivers and stressors affecting natural resource conditions at a park and to report conditions for natural resource topics selected by park managers. Resource conditions are evaluated as either a condition assessment or a gap analysis, depending on data availability. For FOPU’s NRCA, managers selected salt marsh, shorebirds, Eastern oyster (Crassostrea virginica), and butterflies as the focal resources. FOPU is comprised of two islands in coastal Georgia, McQueens and Cockspur, which are separated by the Savannah River near its confluence with the Atlantic Ocean. Cockspur Island contains the 19th century masonry fort, Fort Pulaski, and the monument’s visitor services and facilities and is primarily constructed with dredge material from the Savannah River. McQueens Island is almost entirely salt marsh habitat and most of its area is eligible federal wilderness, containing one of Georgia’s oyster recreational harvest areas (RHAs), Oyster Creek RHA. Both McQueens and Cockspur islands are designated as a National Oceanic and Atmospheric Administration Marine Protected Area (MPA), underscoring FOPU’s natural resource significance. Riverine, freshwater, and estuarine wetlands cover 83.81% of FOPU, with the latter accounting for almost 99% of all monument wetlands. Persistently emergent vegetation of smooth cordgrasses (Spartina spp.) and unconsolidated shore represent the dominant wetland types. McQueens Island estuarine wetlands were evaluated for 11 functions and were rated primarily as high functioning, except for the wetland north of Highway 80, where the causeway has altered its ability to function properly. The wetland west of the Highway 80 bend is composed of unconsolidated material so was rated as moderately functioning in carbon sequestration, retention of sediments, and shore stabilization. In contrast, the unconsolidated shore wetland in the Oyster Creek RHA, where the highest concentration of FOPU’s oysters occurs, were rated high for all expected wetland functions. In 2013, over 75% of the total oyster area from within four of Georgia’s RHAs was in the Oyster Creek RHA. A spectral analysis of oyster density in Oyster Creek RHA, comparing 2013 and 2018 images, reported an increase in the high-density class, a decrease in the moderate-low class, and an increase in the no oyster class, with the latter likely a function of how oyster areas were drawn between the images. A successful 2013 enhanced reef project in Oyster Creek RHA reported a pre-enhancement oyster area of 2.68 m2 (28.8 ft2) that increased to 894.2 m2 (0.22 ac) of oysters by 2018. FOPU’s extensive salt marsh habitat and beaches provide critical food sources and habitat for shorebirds in the Atlantic Flyway, especially during the pre-breeding season. The American Oystercatcher (Haematopus palliates), Whimbrel (Numenius phaeopus), and the federally threatened rufa subspecies of Red Knot (Calidris canutus rufa) are identified as high priority species in the flyway and have been observed on Cockspur Island during the Manomet International Shorebird Surveys (2019–2022) at FOPU. The USFWS (2023) is seeking additional critical habitat designation, which will include Cockspur Island, for the rufa subspecies of Red Knot, whose estimated population abundance trend is declining throughout its entire range. FOPU’s non-wetland, upland habitat is primarily located on Cockspur Island and supports vegetation that can serve as host, roost and/or nectar plants for pollinators, especially butterflies. Cedar–Live Oak–Cabbage Palmetto (Juniperus virginiana var. silicicola–Q. virginiana–Sabal palmetto) Marsh Hammock and Cabbage Palmetto Woodland contain the most diversity of beneficial butterfly plants. While a comprehensive butterfly inventory is needed, fall migration surveys have recorded three target species of the Butterflies of the Atlantic Flyway (BAFA): monarch (Danaus plexippus), gulf fritillary (Agraulis vanillae), and cloudless sulphur (Phoebis sennae). Collectively, FOPU’s natural resources are affected by the sea level, which has risen by 0.35 m (1.15 ft) from 1935 to 2022. Hardened shorelines, such as causeways or armored structures, are identified as the greatest threat to the salt marsh habitat’s ability to migrate upland with continued sea level rise. Erosion along Cockspur Island’s north shore is an ongoing issue and FOPU managers have been working with the U.S. Army Corps of Engineers to develop solutions to address the erosion, while also creating habitat for shorebirds. Several agencies routinely monitor for water and sediment pollution in and around FOPU, which, if managed collectively, can inform landscape-level management actions to address drivers that are influencing resource conditions at the ecosystem level.
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Wiggert, Jerry, Brandy Armstrong, Mustafa Kemal Cambazoglu i K. K. Sandeep. Mid-Breton Sediment Diversion (MBrSD) Assessment – Final Report. The University of Southern Mississippi, 2022. http://dx.doi.org/10.18785/sose.001.

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The purpose of this project is to provide managers at the Mississippi Department of Marine Resources (MDMR) with the scientific information needed to accurately address public concerns regarding the potential effects of the Louisiana Coastal Master Plan / Coastal Protection and Restoration Authority (CPRA) Mid-Breton Sediment Diversion (MBrSD) on the jurisdictional waters and resources of Mississippi. The stated design purpose of the MBrSD is to reconnect and re-establish the deltaic sediment deposition process between the Mississippi River and the Breton Sound Basin through a diversion that will deliver up to 75,000 cfs of sediment-laden freshwater. The report presented herein provides model-based guidance on the impact that the introduction of the MBrSD will have on salinity conditions in the Mississippi Sound (MSS) and Mississippi's jurisdictional waters that encompass oyster reef locations. Oysters are key ecosystem health indicators and economic drivers for the State of Mississippi and freshwater diversions into the western MS Sound (WMSS) have recently led to significant, unprecedented environmental impacts resulting in oyster mortality. The potential addition of a new pathway for additional freshwater to be introduced into the MSS requires careful assessment of the potential impacts that may be incurred. This project is designed to assess the impact of implementing the MBrSD on the physical environment in the WMSS. The primary aim is to understand the connectivity between MBrSD-derived freshwater input to Breton Sound on the environmental conditions impacting the oyster reefs of the WMSS near Bay St. Louis. A physical ocean modeling system based on the Coupled Ocean Atmosphere Wave Sediment Transport (COAWST) has been used to simulate the circulation and dynamics over the entire MSS with the analysis presented herein focusing particularly on the western to central MSS. This project demonstrates the importance of applying modeling-based scientific research and the capability of physical ocean circulation models for assessing aquatic ecosystem health, particularly in key oyster reef areas.
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Tonk, Linda, Rob Witbaard, Pim van Dalen i Pauline Kamermans. Applicability of the valve gape monitor to assist with oysters bed (Ostrea edulis) restoration projects. Yerseke: Wageningen Marine Research, 2019. http://dx.doi.org/10.18174/477717.

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Smaal, Aad, Pauline Kamermans, Frank Kleissen, Luca van Duren i Tom van der Have. Flat oysters on offshore wind farms : opportunities for the development of flat oyster populations on existing and planned wind farms in the Dutch section of the North Sea. Yerseke: Wageningen Marine Research, 2017. http://dx.doi.org/10.18174/418092.

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