Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 386 for “"Coral"”.
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Coral Reef Flood Protection and Coral Growth Typology
… chosen to be studied in this thesis is the coral and more specifically, how the form and material of coral reefs are able to mitigate the damages of incoming waves as a result of storm surges. The form and materiality of the coral reefs are translated into a modular coastal protection …
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Coral calcification : insights from inorganic experiments and coral responses to environmental variables
Coral calcification is examined using a laboratory model and living corals. In the laboratory model, abiogenic aragonite formed at high saturation state (Ω>~20) had a granular appearance and was enriched in trace elements, similar to centers of calcification and dark bands in corals. Abiogenic …
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Coral calcification : insights from inorganic experiments and coral responses to environmental variables
The mechanisms involved in the formation of coral skeletons are examined using a laboratory model for coral calcification and the growth of living corals under different environmental conditions. Abiogenic aragonite was precipitated from seawater over a range of saturation states (Chapter 1). …
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Coral biomineralization, climate proxies and the sensitivity of coral reefs to CO₂-driven climate
Scleractinian corals extract calcium (Ca²⁺) and carbonate (CO₃²⁻) ions from seawater to construct their calcium carbonate (CaCO₃) skeletons. Key to the coral biomineralization process is the active elevation of the CO₃²⁻ concentration of the calcifying fluid to achieve rapid nucleation and growth …
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Coral biomineralization, climate proxies and the sensitivity of coral reefs to CO2-driven climate change
Scleractinian corals extract calcium (Ca2+) and carbonate (CO2−3) ions from seawater to construct their calcium carbonate (CaCO3) skeletons. Key to the coral biomineralization process is the active elevation of the CO2−3 concentration of the calcifying fluid to achieve rapid nucleation and growth …
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Computational Analysis of Internal Coral Hydrodynamics
… flow dynamics at the interior of branching corals is critical for a full understanding of nutrient uptake, mass transport, wave dissipation, and other essential processes. These physiological processes depend on the local velocity field, local concentration gradients of nutrients and waste, …
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Cayes, Coral, Tourism and Ethnicity in Belize
The development of tourism and more importantly eco-tourism has emerged as a primary objective for the government of Belize, Central America. This study examines two villages Seine Bight and Placencia located on a peninsula occupied by separate ethnic groups (Garifuna and Creole) that is located on …
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Developing A Geospatial Protocol For Coral Epizootiology
… could be used to advance our understanding of coral reef health. Given that different types of spatial analysis, as well as different parameter settings within each analysis, can produce noticeably different results, poor selection or improper use of a given technique would likely lead to …
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Coral adaptations across ecological and evolutionary scales
… species or lineages within a species complex. Corals are excellent organisms in which to study dynamics across large geographic ranges spanning divergent environments. They not only contain many species rich genera and exhibit local adaptation and long-range dispersal potential, but they are …
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Modelling South African cold-water coral habitats
Cold-water corals are found globally but little is known about energy flows associated with these habitats. The degree to which the benthic ecosystems containing cold-water corals are linked to the overlying pelagic ecosystems is also poorly understood. Observational studies have indicated that …
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Run manager module for CORAL laboratory management
… Object Representation for Advanced Laboratories (CORAL). CORAL is the lab manager with which MIT's Microsystems Technology Laboratories hopes to replace its outmoded, fifteen-year-old lab manager. RM will be used to collect and store parameterized information about each step in the device …
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Climate controls on coral growth in the Caribbean
… of the dominant environmental controls on coral growth. Corals exhibit significant responses to environmental variability occurring on multi-annual to decadal timescales, which are significantly longer than the duration of typical laboratory and field-based experiments. Skeletal growth …
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Lipid biomarkers of coral stress : calibration and exploration
Corals are increasingly threatened by warming sea surface temperatures and other anthropogenic changes. The delicate symbiosis between corals and their algal endosymbionts (zooxanthellae) is easily disrupted by thermal stress, leading to bleaching and eventual mortality. The use of lipid ratios as …
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The Past and Present of Maldivian Coral Reefs
Coral reefs are highly diverse, valuable, but fragile ecosystems that are experiencing unprecedented degradation from anthropogenic impacts and climate change. Degraded reefs provide poorer ecosystem services, including reduced shoreline protection and diminished livelihoods through declining reef …
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Deep coral forests from the Island of Sardinia
… be a key factor in the distribution of deep-sea coral as many coral species require hard substrates, particular light and current conditions. Through the combination of non-invasive techniques such as ROV footage coupled with multi-beam surveys in contrasting geological settings, this thesis aims …
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Reconstructing Tropical Pacific Climate Variability from Coral Archives
… extend the observational record into the past; coral records are especially useful as they can offer high-resolution snapshots of sea surface temperature (SST) variability, sometimes as long as hundreds of years. Taken together, these records can be a powerful tool with which to reconstruct …
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Multifunction Polis : lost city of opportunity / Coral Baines.
This thesis examines the Multifunction Polis concept, its possibilities and its failure.
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Coral bleaching responses in Sodwana Bay, South Africa
… study assessed the bleaching response (BR) of coral colonies within the central reef complex in Sodwana Bay, South Africa. Bleach surveys were conducted at 16 sites on 8 reefs over the period of 2007 to 2013. A total of 12 858 coral colonies from 30 taxa were randomly sampled and colonies were …
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Climate controls on coral growth in the Caribbean
Accurate predictions of Caribbean coral reef responses to global climate change are currently limited by a lack of knowledge of the dominant environmental controls on coral growth. Corals exhibit significant responses to environmental variability occurring on multi-annual to decadal timescales, …
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Lipid biomarkers of coral stress : calibration and exploration
Corals are increasingly threatened by warming sea surface temperatures and other anthropogenic changes. The delicate symbiosis between corals and their algal endosymbionts (zooxanthellae) is easily disrupted by thermal stress, leading to bleaching and eventual mortality. The use of lipid ratios as …
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