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 16 of 16 for “"scleractinian corals"”.
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Assessing the risk of ocean acidification for scleractinian corals on the Great Barrier Reef
… impact the photo-physiology of reef-building corals as it can lead to dysfunction of the symbiosis and loss of productivity. The major objective of this thesis was to provide insight into the mechanism of CO₂₋induced bleaching and productivity loss across multiple life-history stages and …
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In Hot Water: Thermal Acclimation is Insufficient to Save Corals in the Anthropocene
<p>Scleractinian corals are animal partners in exquisite symbioses with a suite of algal, microbial, fungal and viral associates comprising miniature ecosystems collectively referred to as a holobiont. In recent decades, ocean warming has jeopardized the delicate balance of the very symbioses that …
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UPPER TRIASSIC CORALS AND CARBONATE REEF FACIES FROM THE MARTIN BRIDGE AND HURWAL FORMATIONS, WALLOWA TERRANE (OREGON)
The diversity and abundance of Late Triassic scleractinian corals and carbonate microfacies were analyzed from the Wallowa terrane (southern Wallowa Mountains, Oregon) in order to determine regional and distant paleogeographic relationships during the Late Triassic time. Systematic identification …
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UPPER TRIASSIC CORALS AND CARBONATE REEF FACIES FROM THE MARTIN BRIDGE AND HURWAL FORMATIONS, WALLOWA TERRANE (OREGON)
The diversity and abundance of Late Triassic scleractinian corals and carbonate microfacies were analyzed from the Wallowa terrane (southern Wallowa Mountains, Oregon) in order to determine regional and distant paleogeographic relationships during the Late Triassic time. Systematic identification …
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Marine Microbial Communities in Health and Disease: an Exploration of Marine Bacterial Associations Across Space, Time, and Potential Roles Against Pathogens in the Context of the Current Global Climate Change Scenario
… the benthic communities from being dominated by scleractinian corals to octocorals, sponges and/or macroalgae dominance. As Caribbean coral reefs have been indicated as a 'hot spot' for marine diseases, this dissertation primarily focused on providing insights into the putative roles of the …
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Coral skeleton density banding: biotic response to changes in sea surface temperature
… bands in the CaCO3 (aragonite) skeleton of scleractinian corals are commonly used as chronometers, where crystalline couplets of high and low density bands represent the span of one year. Isotopic analysis of these density bands provides a sensitive reconstructive tool for paleoclimatology …
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Bet- hedging reproduction strategies in the massive Caribbean coral Favia fragum
… often overlooked as an evolutionary strategy in corals to adapt to environmental conditions associated with climate change. Most environments vary spatially and temporally over the lifespan of corals, and corals use cues from their natal environments as “predictors” of the environment they will …
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Production of Dimethyl Sulphide (DMS) by Scleractinian Coral during Aerial Exposure – Effect of Temperature and Light
… how rates of DMS production in three Scleractinian corals were affected by both aerial exposure and different light and temperature regimes. Coral specimens were acclimated over a 1 month period prior to data collection. Gas samples were collected from corals both prior to and during …
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Investigating the photosynthesis of Symbiodinium in Caribbean gorgonian corals
… of an array of marine invertebrates, including scleractinian corals and octocorals. Studies examining the symbiosis between Caribbean octocorals and Symbiodinium are sparse, even though octocorals blanket the landscape of Caribbean coral reefs. Here, I compared the photosynthetic characteristics …
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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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Biochemical Composition of Caribbean Gorgonian Corals and Their Symbiosis Under Ambeint and Stressful Conditions
Gorgonian corals are the dominant benthic fauna on Caribbean reefs. Unlike scleractinian corals, gorgonian abundance on these reefs has remained stable or has increased. Therefore, to predict how climate change will affect the reef community, it is essential to understand gorgonian physiology under …
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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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Development of proxy seawater records from gorgonian coral skeletons
… record. The isotope and elemental composition of scleractinian corals have proven to be useful tools for palaeoceanographic reconstruction, providing information about the surface and deep oceans on time scales of decades to millennia. <br/>The potential of gorgonian corals (Cnidaria: …
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From micro to macro: the benefits and pitfalls of environmental generalism on coral reefs in the Anthropocene
… and pitfalls of environmental generalism in scleractinian corals exposed to warming temperatures through the lens of physiological ecology. By assessing corals exposed to thermal stress in either the field (e.g. a naturally occurring bleaching event) or in a laboratory setting (e.g. …
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Quantitative ecology reveals scale-dependent structural processes of the Antarctic benthos through time
… mechanisms and competition for two solitary scleractinian cup coral populations at the centimetre scale on the rocky slopes of Powell Basin (~2000 m depth). Using Spatial Point Process Analyses I found that these corals likely produced larvae that settle near their parents, and that the one …