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 14 of 14 for “"Ocean Sciences"”.
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Rapid extraction of dissolved inorganic carbon from seawater and groundwater samples for radiocarbon dating
… and radiocarbon isotope analysis at the National Ocean Sciences Accelerator Mass Spectrometer Facility at the Woods Hole Oceanographic Institution. The REDICS system was tested using seawater standards collected at 470m and 4000m depth in the Atlantic Ocean and analyzing the extracted CO2. The …
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Rapid extraction of dissolved inorganic carbon from seawater and groundwater samples for radiocarbon dating
… and radiocarbon isotope analysis at the National Ocean Sciences Accelerator Mass Spectrometer Facility at the Woods Hole Oceanographic Institution. The REDICS system was tested using seawater standards collected at 470m and 4000m depth in the Atlantic Ocean and analyzing the extracted CO₂. The …
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Aquatecture : underwater dwellings and sea born structures as paradigms of design
… designer and planner through an effort to bridge ocean sciences, ocean engineering and architectural concerns. With the knowledge thus gained, it may be possible to project further into civilization's potential for cultural development within the limited context of the sea as a dwelling place.
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[Re]connected and on track integrating the Nelson Mandela Bay commuter rail line with the Swartkops area through a re-imagined future
… campus housing the Nelson Mandela University Ocean Sciences Campus. Currently the Swartkops Station sits isolated from its main users - people from the Kwazakhele township - and sits in an area of intense environmental degradation. This corridor of activity becomes defined by the thresholds it …
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Whale entanglements in South African trap fisheries and their potential mitigation through ropeless fishing techniques
The increasing frequency of whale entanglements in fishing gear is a global concern. In South African waters, the west coast rock lobster (WCRL), south coast rock lobster (SCRL) and octopus fisheries are responsible for whale entanglements in trap fishing gear. To better understand the interactions …
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Human disturbance impact on shorebirds at Muizenberg Beach, South Africa, during and prior to the COVID-19 lockdown
The impact of humans on the natural environment has been so extensive that the scientific community has defined a new geological era: the Anthropocene. Coastal ecosystems rank amongst the most threatened of global habitats due to high urban human population density and demand for socio-ecological …
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Assessing techniques to successfully monitor the oceanography of the complex uThukela Marine Protected Area
… for marine life on the Bight. Knowledge of the oceanographic dynamics in the region is essential for understanding the functioning of the ecosystem and the effectiveness of the MPA. This study analysed changes in ocean temperatures at 20 sites along the Bight over a 41-year period using in situ …
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An investigation on humpback whales' distribution in relation to Antarctic sea ice in the IDCR/SOWER dataset
… feeding ecology is inextricably linked to the oceanic features around Antarctica, and to the seasonal sea ice. The changing Antarctic cryosphere in response to climate change threatens not only their habitat but also their prey resources. Understanding the interaction between the changing …
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Seasonal and long-term change in the abundance, accumulation and distribution of beach litter within Table Bay, Cape Town, South Africa
… with regard to the pollution of the world's ocean, particularly by marine debris and plastics. The daily accumulation rates of stranded beach litter were measured at two sites within Table Bay, repeating similar studies from 1994/95 and 2012. Milnerton is a popular recreational beach near the …
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Estimates of length-at-50% maturity of two South African demersal species: Monkfish, Lophius vomerinus, and Kingklip, Genypterus capensis
Long-lived and slow-growing fish species are especially vulnerable to overfishing. Deep-sea species are elusive and difficult to study, making their management challenging. South African monkfish, Lophius vomerinus, and kingklip, Genypterus capensis, are two demersal species living off the west and …
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Building A Mean-state Of Oceanographic Properties (Temperature And Salinity) For The Kwazulu-natal Bight Using The Roms Model: A Contribution Towards Marine Protected Areas Analysis
… the Bight through a series of biological and oceanographic studies and this study forms part of the oceanographic research component that will assist in the decision-making process of MPAs in the region. This study uses a 30-year, high-resolution, regional ROMS simulation to build a …
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Impact of Wind Driven Variability on Sea Surface Temperature and Ocean Colour in False Bay
… driven by the orography. Analyses of the SST and ocean colour imagery show that wind shadows are generally associated with warmer surface waters and higher Chl-a. In contrast, regions of enhanced wind speeds show colder surface waters and decreased chlorophyll concentration. Our results suggest …
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Ocean-surface heterogeneity mapping: exploiting hypertemporal datasets in support of seascape ecology research
… of marine life throughout the world’s oceans. Studies often require both biological and environmental data from a variety of sources, which are increasingly complemented by data acquired using remote sensing and satellite-based sensors. Advances in remote sensing technology have …