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 27 for “"coastal ecosystem"”.
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Constraining natural and anthropogenic disturbances in the delivery of coastal ecosystem services
Coastal ecosystems provide key services that benefit human wellbeing yet are undergoing rapid degradation due to natural and anthropogenic pressures. This thesis seeks to understand how disturbances impact salt marsh and estuarine ecosystem functioning in order to refine their role in coastal …
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Constraining Natural and Anthropogenic Disturbances in the Delivery of Coastal Ecosystem Services
Coastal ecosystems provide key services that benefit human wellbeing yet are undergoing rapid degradation due to natural and anthropogenic pressures. This thesis seeks to understand how disturbances impact salt marsh and estuarine ecosystem functioning in order to refine their role in coastal …
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Human health and coastal ecosystem risk assessment of the Massachusetts Military Reservation main base landfill groundwater plume
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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Dynamics of baseline stable isotopes within a temperate coastal ecosystem: Relationships and projections using physical and biogeochemical factors
… thesis was to determine isotopic variations in a coastal food web and their relationship with surrounding environmental factors or food sources, to determine the suitability and issues for using such baselines in interpreting trophic links and positions in food webs and predicting shifts in …
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Investigating the physical and ecological drivers of change in a coastal ecosystem: from individual to population scale impacts.
Coastal ecosystems are undergoing unprecedented rates of environmental change. Many of these changes are anthropogenically-driven and linked to long-term, climate-related phenomena. This thesis focusses on ecological change in soft sediment intertidal habitats. One of the largest harbours in …
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Picophytoplankton of the Northeast U.S. Shelf: community composition and dynamics
… change. Predicting the response of marine ecosystems to these changes requires mechanistic knowledge of picophytoplankton ecology. This thesis uses a combination of long-term monitoring, cruise data, population models, and high-throughput sequencing to investigate the dynamics of …
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Picophytoplankton of the Northeast U.S. Shelf: Community Composition and Dynamics
… change. Predicting the response of marine ecosystems to these changes requires mechanistic knowledge of picophytoplankton ecology. This thesis uses a combination of long-term monitoring, cruise data, population models, and high-throughput sequencing to investigate the dynamics of …
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Spatial and Seasonal Patterns of Above- and Belowground Vegetation Biomass and Potential Drivers in the Pascagoula River Delta, MS
<p>Coastal wetlands provide a valuable wealth of services to the greater coastal ecosystem and human communities. However, threats such as sea level rise and conservation projects, such as freshwater diversions, have the potential to alter coastal wetlands in different ways. In this thesis, I …
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O uso e ocupação do solo no entorno do estuário do Rio Gramame e a qualidade da água.
… of Gramame river and quality of water in this coastal ecosystem. Methodological procedures were used GIS techniques in order to understand the land cover in the study area, as well as, data limnological monitoring stations of water quality provided by the Environmental Development …
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Architecture for environmental learning : a National Outdoor Leadership School in Baja, Mexico
… the natural environment. The site is in a desert coastal ecosystem on the east coast of the Baja peninsula. The school is acquiring additional property and has the need for a master plan that looks to their long term needs. The master plan interweaves the issues of building in a small community …
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Effects of shoreline development and freshwater discharge on nekton assemblage and trophic structure in a northern Gulf of Mexico estuary
<p>Coastal salt marshes support a diversity of nekton and facilitate critical ecosystem functions but are threatened by shoreline development and climate change. Therefore, coastal ecosystem managers have begun incentivizing the use of living shorelines (LS), erosion control structures …
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Determining the Trophic Role of Gulf Menhaden (<i>Brevoortia patronus</i>) Using Carbon and Nitrogen Stable Isotopes
… play multiple roles in the Gulf of Mexico coastal ecosystem as filter feeders and as an important food source for many recreationally and economically important finfish. Gulf menhaden also support a large commercial fishery, and little is known about the impact of fishing on the role of …
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Heavy Metal Distribution Across Three Georgia Estuaries Using Coastal Sharks As Sentinel Species
… transitional environments that play key roles in coastal ecosystem functioning by providing essential habitats to ecologically important plant and animal species. Estuaries are exposed to a number of anthropogenic impacts, including heavy metal contamination from human activities. However, few …
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Mimetic Coastal Ocean Modeling In General Coordinates And Using Machine Learning Based Predictions
… are a ubiquitous and fundamental aspect of the coastal ecosystem understanding. However, they rely on extreme geographical conditions and precise dimensional equilibrium to be captured accurately. The General Curvilinear Coastal Ocean Model (GCCOM) was validated, serial and parallel versions for …
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Spatial and Temporal Variability of Particulate and Chromophoric Dissolved Organic Matter Absorption in the Northern Gulf of Mexico
<p>Coastal regions influenced by large freshwater inputs exhibit large variability in absorption and associated optical properties. Therefore, understanding coastal ecosystem processes requires intensive, ongoing sampling. Analysis of the Mississippi and Atchafalaya River plumes took place on board …
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Survival strategies of eelgrass in reduced light
… angiosperm whose role in supporting overall coastal ecosystem productivity has been widely recognized. Understanding eelgrass plant and meadow responses to light reduction has therefore received significant research interest over the last 30 years, while managers have sought tools to identify …
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Unifying ecosystem concepts and mercury biomagnification in an estuarine environment using stable isotopes (delta-carbon-13 and delta nitrogen-15).
… The results of this analysis show that for this coastal ecosystem, no distinction can be made in delta13C and delta15N values between estuarine and marine primary producers and filter-feeding fish, whereas freshwater fish and submerged terrestrial leaf litter were characterised by their …
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Diel and seasonal dynamics of Anaulus australis at Muizenberg Beach, South Africa
… but also contribute to broader knowledge of coastal ecosystem dynamics, with potential implications for conservation and management efforts in these critical environments.
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Ecosystem health in Guánica Bay and La Parguera, Puerto Rico: Remote sensing of ocean color and metal analysis of coral tissue and surficial sediments
… in southwest Puerto Rico, with a coral reef ecosystem at its periphery. This ecosystem is affected by sediments, nutrients, and contaminants from the watershed through the Bay and into the offshore water. This project evaluates Guánica Bay and La Parguera coastal areas through remote sensing …
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Seasonal predictability and interannual variability in coastal planktonic communities
… the predictability and variability of coastal planktonic communities is essential for forecasting ecosystem responses to environmental change and managing marine resources. This thesis examines seasonal predictability, temperature-phenology relationships, and interannual bloom …
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