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 113 for “"Coral reef"”.
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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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Examining coral reef ecosystem dynamics using microorganisms and metabolites
… of biodiverse and economically important coral reef ecosystems and are also tightly connected. Metabolites are small organic compounds produced by reef organisms and are the chemical currencies exchanged by unicellular microorganisms (bacteria and archaea) within the seawater. Although …
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Examining coral reef ecosystem dynamics using microorganisms and metabolites
… of biodiverse and economically important coral reef ecosystems and are also tightly connected. Metabolites are small organic compounds produced by reef organisms and are the chemical currencies exchanged by unicellular microorganisms (bacteria and archaea) within the seawater. Although …
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Behavioral ecology of coral reef fishes at spawning aggregation sites
Coral reef fishes aggregate to spawn on certain locations of reefs. This thesis is an extensive investigation of the behavioral and ecological relations between spawning reef fishes, predators and their environment at a spawning aggregation site. Many hypotheses have been proposed regarding the …
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Coral reef soundscapes : spatiotemporal variability and links to species assemblages
Coral reefs are biodiverse ecosystems that are at risk of degradation as a result of environmental changes. Reefs are constantly in a state of flux: the resident species assemblages vary considerably in space and time. However, the drivers of this variability are poorly understood. Tracking these …
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Ecological evaluation of coral reef resources at Kahaluʻu Bay, Hawaiʻi
… objectives of this research were to: assess coral reef resources (coral and fish communities) present at Kahalu´u Bay, Hawai´i; and integrate scientific ecological observations with Traditional Environmental Knowledge (TEK) and cultural practices. This localized assessment is the first to …
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Coral reef soundscapes: spatiotemporal variability and links to species assemblages
Coral reefs are biodiverse ecosystems that are at risk of degradation as a result of environmental changes. Reefs are constantly in a state of flux: the resident species assemblages vary considerably in space and time. However, the drivers of this variability are poorly understood. Tracking these …
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Behavioral ecology of coral reef fishes at spawning aggregation sites
Thesis (Ph. D.)--Joint Program in Biological Oceanography (Massachusetts Institute of Technology, Dept. of Biology; and the Woods Hole Oceanographic Institution), 1998.
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A scientific framework for evaluating coral reef resilience to climate change
… oceans will impact the structure and function of coral reef ecosystems. Consequently, conservation efforts are increasingly focused on identifying and protecting reef communities that demonstrate resilience to these changes. In this thesis, I develop a scientific framework for identifying climate …
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Parametric, Non-Parametric And Statistical Modeling Of Stony Coral Reef Data
Like coral reefs worldwide, the Florida Reef Tract has dramatically declined within the past two decades. Monitoring of 40 sites throughout the Florida Keys National Marine Sanctuary has undertaken a multiple-parameter approach to assess spatial and temporal changes in the status of the ecosystem. …
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A scientific framework for evaluating coral reef resilience to climate change
… oceans will impact the structure and function of coral reef ecosystems. Consequently, conservation efforts are increasingly focused on identifying and protecting reef communities that demonstrate resilience to these changes. In this thesis, I develop a scientific framework for identifying climate …
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Effects of fishing on a coral reef fish assemblage in Northeastern Brazil
Reef fisheries are important activities that support the livelihoods of millions of people. Reef fisheries exploit different habitats and typically target a diversity of species caught with a matching diversity of fishing gears. However, previous studies of reef fisheries have generally lacked …
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Characterizing the ecology of coral reef microorganisms across different scales within the Caribbean
Microorganisms sustain the high productivity of coral reefs and support one of the most diverse, valuable, and threatened ecosystems on Earth. Despite the importance of reef microorganisms, there is a lack of understanding about their ecology, especially on Caribbean reefs. Furthermore, the …
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Energy harvesting using ocean data acquisition system (ODAS) buoy for coral reef monitoring
The threat to coral reefs in the ocean and coastal areas is growing, the main thing that threatens coral reefs is weather changes and human activities. If this is not in concern it will damage the coral reef which is the habitat of most marine life. There are several methods to monitor the coral …
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Cryptobenthic Coral Reef Fishes: Resolving Critical Gaps in Species Delimitation, Sampling Techniques, and Phylogenetic relationships
Cryptobenthic reef fishes (CRF) are the smallest vertebrates on coral reefs but represent about 40% of the fish species and about 50% of fish abundance in coral reef ecosystems. Their diversity can be explained by their extremely limited dispersal abilities and short generation times (promoting …
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Variations in coral reef net community calcification and aragonite saturation state on local and global scales
… NCC will decline by 50% from 1880 to 2100, for a reef of any percent calcifier cover and short reef water residence time. NCC will also decline if percent calcifier cover declines, as evidenced by estimates of NCC in two Caribbean reefs having declined by an estimated 50-90% since 1880. The …
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Variations in coral reef net community calcification and aragonite saturation state on local and global scales
… NCC will decline by 50% from 1880 to 2100, for a reef of any percent calcifier cover and short reef water residence time. NCC will also decline if percent calcifier cover declines, as evidenced by estimates of NCC in two Caribbean reefs having declined by an estimated 50-90% since 1880. The …
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Functional connectivity of coral reef fishes in a tropical seascape assessed by compound-specific stable isotope analyses
… habitats, including mangroves, seagrass beds and coral reefs, is coming under increasing pressure from human activities. Many coral reef fish species are thought to use mangroves and seagrass beds as juvenile nurseries before migrating to coral reefs as adults. Identifying essential habitats and …
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The effect of recreational fishing on targeted fishes and trophic structure, in a coral reef marine park
… E. mathaei reside in the crevices of rock, dead coral or Echinapora coral, which provided refuge from predation and this habitat was more available in the Sanctuary Zone. It is suggested that the availability of this habitat confounded the effects of predation. Macro- algal cover was lower in the …
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