Tesis sobre el tema "Coral reef bay"
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Evans, Christopher W. "Sewage diversion and the coral reef community of Kane‘ohe Bay, Hawai‘i: 1970- 1990". Thesis, University of Hawai‘i, Honolulu, 1995. http://hdl.handle.net/10125/16332.
Texto completoThesis (M. A.)--University of Hawaii at Manoa, 1995. Includes bibliographical references (leaves 166-175).
Macdonald, Iain Andrew. "Reef growth and framework preservation in a turbid lagoon environment, Discovery Bay, North Jamaica". Thesis, Manchester Metropolitan University, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288141.
Texto completoMaher, Marie A. Bonem Rena Mae. "Comprehensive model for modern lagoonal patch reef systems in Discovery Bay, Jamaica". Waco, Tex. : Baylor University, 2007. http://hdl.handle.net/2104/5029.
Texto completoLacks, Amy L. "Reproductive ecology and distritution of the scleractinian coral Fungia scutaria in Kane‘ohe Bay, O‘ahu, Hawai‘i". Thesis, University of Hawai‘i, Honolulu, 2000. http://hdl.handle.net/10125/16333.
Texto completoThesis (M. A.)--University of Hawaii at Manoa, 2000. Includes bibliographical references (leaves 70-74).
Pichler, Thomas. "Hydrothermal activity in a coral reef ecosystem, Tutum Bay, Ambitle Island, Papua New Guinea". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0022/NQ36791.pdf.
Texto completoBythell, J. C. "A nitrogen budget for the Caribbean elkhorn coral Acropora palmata (lamarck) from the back-reef environment of Tague Bay reef, St. Croix, U.S. Virgin Islands". Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383984.
Texto completoAbeare, Shane. "The Vezo communities and fisheries of the coral reef ecosystem in the Bay of Ranobe, Madagascar". ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2685.
Texto completoWestfield, Isaac T. Dworkin Steve I. "Geochemical fingerprinting of sediments on the Pear Tree Bottom Reef, near Runaway Bay, Jamaica". Waco, Tex. : Baylor University, 2008. http://hdl.handle.net/2104/5289.
Texto completoCooley, Patrick J. "Initiation and growth of mid-Holocene coral reefs, Cleveland Point, Moreton Bay, Queensland". Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/107981/2/Patrick_Cooley_Thesis.pdf.
Texto completoLovenburg, Vanessa. "Omnifarious octocoral observations : ecology and genetics of octocoral communities from Útila, Bay Islands, Honduras". Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:ba3d9aae-77ce-42a6-9de2-7235a57637f6.
Texto completoGoebel, Patrick C. "Distribution, Abundance and Movement of Fish among Seagrass and Mangrove Habitats in Biscayne Bay". NSUWorks, 2016. http://nsuworks.nova.edu/occ_stuetd/403.
Texto completoFakhari, Ahmad. "Wall-Layer Modelling of massive separation in Large Eddy Simulation of coastal flows". Doctoral thesis, Università degli studi di Trieste, 2015. http://hdl.handle.net/10077/11104.
Texto completoThe subject of modelling flow near wall is still open in turbulent wall bounded flows, since there is no wall layer model which works perfectly. Most of the present models work well in attached flows, specially for very simple geometries like plane channel flows. Weakness of the models appears in complex geometries, and many of them do not capture flow separation accurately in detached flows, specially when the slope of wall changes gradually. In many engineering applications, we deal with complex geometries. A possible way to simulate flows influenced by complex geometry using a structured grid, is to consider the geometry as immersed boundary for the simulation. Current wall layer models for the immersed boundaries are more complex and less accurate than the body-fitted cases (cases without immersed boundaries). In this project the accuracy of wall layer model in high Reynolds number flows is targeted, using LES for attached flows as well as detached flows (flows with separation). In addition to the body fitted cases, wall layer model in the presence of immersed boundaries which is treated totally different also regarded. A single solver LES-COAST (IE-Fluids, University of Trieste) is used for the flow simulations, and the aim is to improve wall layer model in the cases with uniform coarse grid. This is in fact novelty of the thesis to introduce a wall layer model applied on the first off-wall computational node of a uniform coarse grid, and merely use LES on the whole domain. This work for the immersed boundaries is in continuation of the methodology proposed by Roman et al. (2009) in which velocities at the cells next to immersed boundaries are reconstructed analytically from law of the wall. In body-fitted cases, since smaller Smagorinsky constant is required close to the walls than the other points, wall layer model in dynamic Smagorinsky sub-grid scale model using dynamic k (instead of Von Karman constant) is applied to optimize wall function in separated flows. In the presence of immersed boundaries, the present wall layer model is calibrated, and then improved in attached and also detached flows with two different approaches. The results are also compared to experiment and resolved LES. Consequently the optimized wall layer models show an acceptable accuracy, and are more reliable. In the last part of this thesis, LES is applied to model the wave and wind driven sea water circulation in Kaneohe bay, which is a bay with a massive coral reef. This is the first time that LES-COAST is applied on a reef-lagoon system which is very challenging since the bathymetry changes very steeply. For example the water depth differs from less than 1 meter over the reef to more than 10 meters in vicinity of the reef, in lagoon. Since a static grid is implemented, the effect of wave is imposed as the velocity of current over the reef, which is used on the boundary of our computational domain. Two eddies Smagorinsky SGS model is used for this simulation.
XXVI Ciclo
1983
Morris, Tamaryn. "Physical oceonography of Sodwana Bay and its effect on larval transport and coral bleaching". Thesis, Cape Peninsula University of Technology, 2009. http://hdl.handle.net/20.500.11838/2038.
Texto completoA collaborative study between Marine and Coastal Management (MCM) and the Oceanographic Research Institute (ORI) was initiated in March 2001 to investigate the physical oceanography of Sodwana Bay, South Africa, and the affects on coral communities resident to the area. A bottom-mounted Acoustic Doppler Current Profiler (ADCP) and three Underwater Temperature Recorders (UTR) were deployed to complement the long-term monitoring UTR deployed on Nine-Mile Reef (NMR) in 1994. The study was terminated after 30 months, whereby all instruments were removed except for the long-term monitoring UTR.
Major, Josef. "Controls on mid-Holocene fringing reef growth and termination in a high latitude, estuarine setting, Wellington Point, Southeast Queensland". Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/63964/1/Josef_Major_Thesis.pdf.
Texto completoForselius, Ellen. "The Good, The Bad and The Seascape : Possible Effects of Climate Change in Tropical People and Ecosystems in the Western Indian Ocean Using a Gender Perspective". Thesis, Stockholms universitet, Institutionen för naturgeografi och kvartärgeologi (INK), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-96064.
Texto completoMohamed, Mizna. "Economic valuation of coral reefs: a case study of the costs and benefits of improved management of Dhigali Haa, a marine protected area in Baa atoll, Maldives". Thesis, University of Canterbury. Biological Sciences, 2008. http://hdl.handle.net/10092/1473.
Texto completoSilva, Bruno Allevato Martins da. "Composição e tafonomia dos foraminíferos bentônicos durante período seco e chuvoso na baía de Tamandaré, PE, Brasil". Niterói, 2017. https://app.uff.br/riuff/handle/1/4772.
Texto completoMade available in DSpace on 2017-10-03T17:34:43Z (GMT). No. of bitstreams: 1 Dissertação Bruno Allevato M. da SIlva.pdf: 2506067 bytes, checksum: a7fd88a86552d0a0f031f1eb05a0b288 (MD5)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Universidade Federal Fluminense. Instituto de Química. Programa de Pós-Graduação em Geoquímica, Niterói, RJ
A baía de Tamandaré, PE, Brasil, é um ambiente recifal que apresenta uma condição ambiental de baixa cobertura de corais. Entre as possíveis causas para esta situação, estão a alta pressão que o turismo exerce na cidade de Tamandaré e a entrada de águas continentais, com grande volume de sedimento e contaminada com resíduos agrícolas e domésticos. Estes fatores apresentam uma variação sazonal, de forma que o primeiro se intensifica no período seco (setembro a fevereiro) enquanto o segundo atua mais forte sobre a baía no perído chuvoso (março a agosto). Entretanto, mesmo com estas pressões antrópicas na baía de Tamandaré, suas águas são classificadas como oligotróficas. Objetivando de avaliar o sedimento recifal da baía de Tamandaré, foram estudados composição e tafonomia dos foraminíferos bentônicos presentes no sedimento de nove amostras do período seco e chuvoso. Os resultados apontaram para uma assembléia de foraminíferos sem características de ambientes recifais, com um Índice FORAM abaixo de 4 em todas as estação, com somente uma exceção no período seco, que classificaram a baía como tendo qualidade de água desfavorável para assentamento de corais. Sazonalmente, há uma diferença entre as assembleias dos períodos seco e chuvoso refletida no número total de gêneros encontrados nos dois períodos, sendo maior no período seco que no chuvoso. Entretanto, em análises estatísticas como SHE e CLUSTER, não foram detectadas variações sazonais, sobre tudo nas estações mais profundas. Entre as razões para a baixa variação das assembleias de foraminíferos nos dois períods, a pouca variação da salinidade e temperatura, influênciadas pelo baixo volume de chuva nos meses da coleta, podem ter sido o principal motivo. Foraminíferos com processos tafonomicos como quebrado ou alteração de cor, representaram 40% a 20% do total de testas analisadas, indicando a ocorrência de ressuspenção do sedimento. Três testas com alteração tafonomica da cor e um quarta sem mudança na cor foram analisadas em MEV/EDS e mostrara a ausência ou pouca distribuição de elementos como Fe e S diferente do que seria esperado e a presença de elementos comuns de argilo minerais. De forma geral, os resultados associaram a baía de Tamandaré como ambiente não usal para assentamento de corais, com assembleias de foraminíferos similares entre os períodos analisados, e tendo como principais fatores físico-químicos que influenciam na composição da assembleia a temperatura, salinidade e ressuspenção
Tamandaré bay, PE, Brazil, it’s a reef environment which shows a low coral coverage. Among the possible causes for this situation are the, high pressures which tourism exert in Tamandaré city and the flow of continental waters, with high volume of sediment and contaminated with agricultural and domestic waste. These factors shows seasonal variation, where the first intensify during the dry season (September to February) whereas the second it’s strongest in the bay during the wet season (March to August). However, even with these anthropic pressures in the Tamandaré bay, those waters are classified as oligotrophic. Aiming evaluated the reef sediment of Tamandaré bay, were studied composition and taphonomy of benthic foraminifera present in the sediment of nine samples of dry and wet season. The results point out a foraminiferal assemblage without characteristics of reef environment, where FORAM Index was below 4 in all stations, with just one exception in the dry season, classifying the bay as have water quality unfavorable for coral attach. Seasonality, there’s just one difference between the assemblage of dry and wet seasons reflected in the total number of generous found in the two seasons, where was bigger during the dry season when compared whit dry season. Otherwise, statistical analyses like SHE and CLUSTER, didn’t detected variations between seasons, manly in the deepest stations. Among the reason for the similar foraminifera assemblage between the two seasons, the few variation of salinity and temperature, influenced by the low rain during the month of collection, seems to be the main reason. Taphonomic processes in foraminifera like broke or color change, represented 40% to 20% of the total test analyzed, suggesting sediment ressuspection. Three tests with color change and one fourth without, were analyzed in MED/EDS and shows the absence or few distribution of elements like Fe and S different of what would be expected and the presence of ordinary elements in clay minerals. All in all, the results associated Tamandaré bay as a environment unusual for coral attach, with a similarity foraminifera assemblages between the season analyzed, and had been as main physic-chemistry factors influence in assemblage composition, the temperature, salinity and ressuspection
Van, den Beld Inge. "Habitats coralliens dans les canyons sous-marins du Golfe de Gascogne : distribution, écologie et vulnérabilité". Thesis, Brest, 2017. http://www.theses.fr/2017BRES0017/document.
Texto completoCold-water coral (CWC) habitats formed by colonial scleractinians, gorgonians, antipatharians and sea pens are biodiversity and biomass hotspots that provide important functions, such as shelter and feeding grounds, to other organisms. But, they are also vulnerable to human activities, because they are long-lived, grow slowly and have a low resistance. Submarine canyons may offer the environmental conditions needed for CWC habitat development, due to their steep topography, complex hydrodynamics and substrate heterogeneity. In the Bay of Biscay, which margin is incised by hundreds of canyons, CWCs are known to exist since the late 19th century, but their distribution, density and functional role remained largely unknown, which impaired their preservation.To increase this knowledge, 24 canyons and three locations between adjacent canyons were visited with an ROV and a towed camera system during 46 dives on 7 cruises. Images were analysed for CWC habitats using the CoralFISH classification system. Within these habitats, corals, associated fauna were identified and substrate cover measured. Litter was identified in 15 out of 24 canyons.Eleven coral habitats constructed by 62 coral morphotypes were observed in the canyons of the Bay of Biscay hosting 191 associated megafaunal morphotypes, including 160 unique morphotypes. The distribution patterns at regional and local scales could be linked to hydrodynamics and sedimentary regimes. Substrate type was an important driver for coral and associated faunal assemblages, distinguishing biogenic, hard substrate and soft substrate habitats. Coral assemblages were similar between biogenic and hard substrate habitats, but the associated fauna was more abundant and diverse on biogenic habitats. The alpha, beta and gamma diversity was surprisingly high on soft substrate habitats, equalling or exceeding that of biogenic habitats.Marine litter was abundant and was mainly composed of plastic items and fishing gear. Litter could co-occur with CWCs and impact them: litter and most CWC habitats were observed at similar water depths and litter was more abundant in areas with a seafloor relief created by biological or geological features. Observations of coral reefs on steeper areas in the canyons and coral debris on flatter areas on the interfluve/upper slope may indicate a potential impact of the fishing industry. This study supports the ongoing effort to create a Natura 2000 network that will protect biogenic and hard substrate habitats, but also points out the need to develop a framework for the preservation of coral habitats on soft substrate
Jacobson, Ellen C. "Light attenuation in a nearshore coral reef ecosystem". Thesis, 2005. http://hdl.handle.net/10125/20795.
Texto completoHaberstroh, Paul R. "Wave-forced porewater mixing and nutrient flux in a coral reef framework". Thesis, 1994. http://hdl.handle.net/10125/10036.
Texto completoHodgson, Gregor. "The effects of sedimentation on Indo-Pacific reef corals". Thesis, 1989. http://hdl.handle.net/10125/10314.
Texto completoUchino, Kanako. "Long-term ecological impacts of dredging on coral reefs in Kaneohe Bay, Oahu". Thesis, 2004. http://hdl.handle.net/10125/11619.
Texto completoHerrera, Sarrias Marcela. "Self-recruitment in a coral reef fish population in a marine reserve". Thesis, 2014. http://hdl.handle.net/10754/336348.
Texto completoHart, Justin R. "Coral recruitment on a high-latitude reef at Sodwana Bay, South Africa : research methods and dynamics". Thesis, 2011. http://hdl.handle.net/10413/7886.
Texto completoThesis (M.Sc.)-University of KwaZulu-Natal, Westville, 2011.
Costen, Andrew Richard. "The sedimentary, hydrodynamic and turbidity regimes at inner shelf coral reefs, Halifax Bay, Central Great Barrier Reef, Australia". Thesis, 1996. https://researchonline.jcu.edu.au/22882/1/01front.pdf.
Texto completoDailer, Meghan L. "Photoecological strategies influencing the invasive success of the invasive marine macrophyte Eucheuma denticulatum on Hawaiian coral reefs". Thesis, 2006. http://hdl.handle.net/10125/20458.
Texto completoRamsay, Peter John. "Sedimentology, coral reef zonation, and late Pleistocene coastline models of the Sodwana Bay continental shelf, Northern Zululand". Thesis, 1991. http://hdl.handle.net/10413/5652.
Texto completoThesis (Ph.D.)-University of Natal, Durban, 1991.
Miao, You-Chun y 苗祐軍. "Planktonic community respiration and organic carbon cycle in a coral reef ecosystem: Nan-Wan Bay, southern Taiwan". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/67733441054640457511.
Texto completo國立臺灣師範大學
生命科學研究所
95
The purpose of this study is to understand potential factors impact on planktonic community respiration (CR) and organic carbon cycle in the water column of coral reef ecosystem in the Nan-Wan Bay, southern Taiwan. Results showed that CR varied between 1.7~ 213 mg C m-3 d-1 during study period. Further analysis showed that the rate was mainly determined by biomass and production of planktonic community, especially phytoplankton. This assumption can be evident by significant relationships observed between integrated values over euphotic zone of CR versus chlorophyll a (Chl-a; 1.8~67 mg Chl m-2) and primary production (PP; 43~569 mg C m-2 d-1; all p < 0.05). In addition, Results also showed that integrated bacterial biomass (BB; 11~1313 mg C m-2) and production (BP; 18~823 mg C m-2 d-1) were significantly regressed against both dissolved and particulate organic carbon (all p<0.01). It suggests that growth of heterotrophic bacteria in this coral reef system might be limited by the amount of organic substrates. The mean ratio of primary production to community respiration (i.e., P/R ratio) was 0.38 ± 0.51, and this indicates that the ecosystem of water column in the Nan-Wan Bay is heterotrophic. This result also suggests that allochthonous organic carbon is needed to support the organic carbon consumption, and organic exudates from the benthos, e.g., corals, might be the most important source in this coral reef ecosystem.
Ban, Stephen Shigeyoshi. "Multiple stressor effects on coral reefs". Thesis, 2014. https://researchonline.jcu.edu.au/40712/1/40712-ban-2014-thesis.pdf.
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