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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 31 for “"Coastal Habitats"”.
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Modern Fair-Weather and Storm Sediment Transport Around Ship Island, Mississippi: Implications for Coastal Habitats and Restoration Efforts
<p>The Mississippi – Alabama barrier island chain is experiencing accelerated sea level rise, decreased sediment supply, and frequent hurricane impacts. These three factors drive unprecedented rates of morphology change and ecosystem reduction. All islands in the chain have experienced land loss on …
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Quantitative Studies of Late Neogene Coastal Environments Using Bivalve Subfossil and Fossil Assemblages
Coastal environments are important in many ways: they provide food and energy for coastal communities, have a variety of unique biologic habitats, and influence global climate. These environments can change due to either anthropogenic or natural phenomena over a wide range of time scales. However, …
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Coastal zone utilization by juvenile fish in the Eastern Cape, South Africa
Many coastal fish exhibit age-specific differential distribution and shallow inshore regiong provide nursery habitats for juveniles of some species. In this study the occurrence of juvenile fish along the Eastern Cape coast was examined with the objective of assessing the importance of coastal …
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Biophysical coupling between turbulence, veliger behavior, and larval supply
… behavior affects larval supply in a turbulent coastal inlet. Gastropod larvae retract their velums and sink rapidly in strong turbulence. Turbulence-induced sinking would be an adaptive behavior if it resulted in increased larval supply and enhanced settlement in suitable coastal habitats. In …
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Spring Landbird Migration along the Northern Coast of the Gulf of Mexico: Multi-Scaled Investigation of Stopover Ecology Within an Urbanized Landscape
… Gulf coast during spring and fall passage. These coastal landscapes are some of the most rapidly developing areas in the U.S. with population growth rates five times higher than that of inland areas. Anthropogenic pressures, along with human-created (e.g., oil spills) and natural disturbances …
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Multi-stressor impacts of ocean warming and acidification on the regeneration andbiomineralisation of <i>Psammechinus miliaris</i>
… calcify spines to maintain function in dynamic coastal habitats. This thesis investigates the response of the coastal sea urchin Psammechinus miliaris to simulated future ocean conditions, focusing on the mechanisms underpinning tube foot regeneration and spine calcification. Through …
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Is The Exotic Brazilian Pepper, Schinus Terebinthifolius, A Threat To Mangrove Ecosystems In Florida?
… these three native species of mangroves in the coastal estuarine system along the east coast of Central Florida in Canaveral National Seashore. The effects of competition were evaluated by testing the ability of S. terebinthifolius to: 1) chemically inhibit growth of mangrove propagules, 2) …
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Can the pathway of abalone aquaculture effluent be traced using carbon and nitrogen stable isotope analysis of kelp Ecklonia maxima and mussels Mytilus galloprovincialis?
… The effects these farms are having on the coastal habitats they occupy are becoming of increasing concern due to the possible negative effects of the effluent discharged from the farm. This study was conducted along the coast of Jacobsbaai (32°58'22.09" Sand 17°53'10.56" E) and Mauritzbaai …
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Selection of Spawning Habitats by Horseshoe Crabs (Limulus polyphemus) along the Complex Connecticut Coast
… of horseshoe crabs and aimed to characterize the coastal habitats of Connecticut by various traits using remote sensing and geographic information system technologies. Data layers representing the coastal area were created within which slope, wave exposure, substrate type, and distance from …
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CHANGES IN THE MORPHOLOGY OF WIDGEON GRASS (RUPPIA MARITIMA) WITH THE ONSET OF REPRODUCTION AND IMPACTS ON FISH ASSEMBLAGES AT THE CHANDELEUR ISLANDS, LA
<p>Seagrasses are important submerged coastal habitats that support nearshore communities. <em>Ruppia maritima</em> (widgeon grass) is a widespread species whose leaves branch extensively when reproductive. The goal of this study was to understand use of reproductive and non-reproductive <em>R. …
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Recruitment of Blue Crab, <i>Callinectes sapidus,</i> Postlarvae to the Back-Barrier Lagoons of Virginia's Eastern Shore
… part of the species' range. In Virginia's coastal lagoons, planktonic blue crab megalopae are most abundant at night on flooding tides, and are not abundant during the daytime or on ebbing tides. This appears to enhance retention within the lagoons, despite the short residence time of water …
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Populations studies on two endemic taxa of southwestern Sardinia: Dianthus morisianus Vals. (Caryophyllaceae) and Anchusa littorea Moris (Boraginaceae)
In the Mediterranean region as elsewhere, intense coastal development has resulted in widespread modification of coastal ecosystems. Here, coastal sand dunes represent an extremely vulnerable habitat to many forms of disturbance, including those connected with recreational tourism which in recent …
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Biophysical coupling between turbulence, veliger behavior, and larval supply
… behavior affects larval supply in a turbulent coastal inlet. Gastropod larvae retract their velums and sink rapidly in strong turbulence. Turbulence-induced sinking would be an adaptive behavior if it resulted in increased larval supply and enhanced settlement in suitable coastal habitats. In …
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Examining coral reef ecosystem dynamics using microorganisms and metabolites
… analyzed microorganisms in Caribbean coral reef habitats over temporal, spatial and reef health gradients as well as metabolites in a spatial reef study. In Chapter 2, I applied a rapid sequencing methodology to corals afflicted with the lethal stony coral tissue loss disease and identified …
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The Role of Backreef Soundscapes and their Spatial Structure for Recruitment of Tropical Marine Larvae
… is a cue used by many marine larvae to orient to coastal habitats including backreef, sponge-dominated hardbottom habitat in the Florida Keys (Florida, USA) – a particularly “noisy” coastal habitat. However, the distance over which acoustic cues are attractive to settlement-stage larvae - is …
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The diversity and functioning of coastal microbial communities
… the nuances of microbial communities. The CBESS (Coastal Biodiversity and Ecosystem Service Sustainability) dataset used here is one such dataset. Random forest analysis, a type of machine learning, was applied here to an expansive dataset of microbial metabarcode reads and environmental measures …
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Examining coral reef ecosystem dynamics using microorganisms and metabolites
… analyzed microorganisms in Caribbean coral reef habitats over temporal, spatial and reef health gradients as well as metabolites in a spatial reef study. In Chapter 2, I applied a rapid sequencing methodology to corals afflicted with the lethal stony coral tissue loss disease and identified …
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The Problem of Being the Problem: creating practice-based fieldworking along climate vulnerable coastlines
… to the threats posed to climate vulnerable coastal habitats from the global phenomenon of sea level rise. It asks, what is response, and how does an approach emerge from bodily encounters with fragile marine cave ecologies . Enquiring how acts of prolonged noticing can bear witness, the …
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The Use of Remote Sensing for Coral Reef Mapping in Support of Integrated Coastal Zone Management: A Case Study in the NW Red Sea - Volume I
… affected in the NW Red Sea, primarily due to coastal development projects supporting the booming tourism industry. Integrated coastal zone management (ICZM), therefore, is urgently needed to protect the coral reefs and conserve these valuable natural resources for future generations. Effective …
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Characterization of Soundscapes in Shallow Water Habitats of the Florida Keys (USA) and Their Influence on the Settlement of Larval Fish and Invertebrates
… soundscapes of three near-shore, benthic habitats: mangrove islands, seagrass meadows, and hard-bottom (Chapter 2); (2) quantify larval settlement within healthy, degraded, and restored hard-bottom areas to test whether habitat degradation altered larval settlement (Chapter 3); (3) …
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