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 19 of 19 for “"scuba diving"”.
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Immersive scuba diving simulator using virtual reality
We present Amphibian, a simulator to experience scuba diving virtually in a terrestrial setting. Amphibian is novel because it simulates a wider variety of sensations experienced underwater compared with to existing diving simulators that mostly focus on visual and aural displays. Users rest their …
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The hearing abilities and middle ear functioning of the recreational scuba diver
Scuba diving as a recreational activity has increased in popularity over the past few years. It is believed that repeated exposure to the hyperbaric environment may have a long term effect on the auditory system. The research literature has given a lot of attention to acute injury but is very …
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Understanding Seahorse Distribution and Ecology in Malta through Citizen Science
… encountered by the public (particularly by scuba divers) in Maltese waters and as Malta is considered a centre for recreational Scuba diving in Europe, it was deemed a good candidate for a sub-aquatic citizen science initiative. In this study, citizen science approaches were compared to …
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Spiritual experiences and environmentalism of recreational users in the marine environment: New Zealand surfers and scuba divers
… spirituality to be a dimension of surfing and scuba diving has received far less scientific attention. Surfing and scuba diving are the focus of this research as a means to inform future policy decisions and research on spiritual connections to the marine environment. This study used …
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Ecoturismo Subacuático. Aplicación al Caso Particular de la Evaluación de un Sendero Submarino en las Costas de Maitencillo, V Región, Valparaíso, Chile.
… present thesis is based on the implementation of scuba diving activities in the year 2002, in the local fishing cove of Maitencillo, Fifth region, Chile. The local fishermen manage the exploitation process of a type of protected marine area called benthic resource management and exploitation area …
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Comparison of two methods for sampling invertebrates on submerged vertical walls with diving
… submerged vertical areas and bottoms while scuba diving were made in Silfra, a freshwater fissure in Þingvellir National Park, southwest Iceland. A modified Surber sampler and a constructed manual suction pump sampling system were used to take 20 samples at two depths at a chosen transect in …
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Diver Motivations in Selecting a Diving Destination
… organization when exploring a target market for diving promotion. In addition to strategically marketing to established divers based on the study results, expanding their focus to this overlooked group would contribute to the growth of the industry by increasing the number of divers, improving …
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A mathematical model to simulate physiological adjustments to extreme environments to analyse human responses to adverse environmental conditions
… range, confirming the model's applicability to scuba diving scenarios. The work further developed an extreme underwater environment research laboratory to conduct underwater exposure experiments and research studies. An underwater exposure protocol was developed defining a recreational diving …
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Nutritional ecology of Agalma okeni and other siphonophores from the epipelagic western North Atlantic Ocean
… in their natural environment: was observed by SCUBA diving at 171 stations in warm-water areas of the Western North Atlantic Ocean. Calycophorae and Physonectae showed a two-phase cycle of fishing and swimming. The fishing posture of a siphonophore is determined by its floatation and by the …
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Chromatophore tissue density and skeletal density banding as a measure of the adaptive response of healthy corals to environmental change
… of impacted and diseased corals. Standard SCUBA diving techniques were used to extract 2.5 cm-diameter and 2 to 3 cm-deep coral skeleton-tissue biopsies, collected in triplicate from > 1 m-diameter heads of M. faveolata within the context of coral reef carbonate depositional facies. A …
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Migrations of spiny rock-lobsters, Jasus Lalandii, at Luderitz : environmental causes, and effects on the fishery and benthic ecology
… rock-lobster on the fishing grounds (observed by SCUBA diving) and hence it is feasible that at least a part of the decline in CPUE at Luderitz was due to an alteration in the "normal" pattern of in-offshore migration. The hypothesis that environmental change caused the major decline in …
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The marine geology of Mossel Bay, South Africa
… Africa. Three marine geophysical surveys and scuba diving were used to examine evidence of past sea-level fluctuations and interpret geological deposits on the seafloor. Additional geological mapping of coastal outcrops was carried out to link land and sea features and rock samples were dated …
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Resetting marine environmental baselines for the United Kingdom: what have we really lost?
… damaging non-consumptive activities, such as SCUBA diving or motorised boating, with few regulations in place. Recommendations are made on how to mitigate or manage for these activities so that HPMRs can provide the high levels of ecosystem protection intended whilst still allowing people to …
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Biological diversity in Icelandic groundwater fissures
… All samples and measurements were acquired by scuba diving. Invertebrate assemblages in fissures varied significantly between geographical regions in regards to taxa richness, density and diversity. All crustacean groups were in significantly greater densities in NE Iceland while chirononmids …
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Dredge spoil dispersion from an inner shelf dump-mound
… visual observations by underwater-video and SCUBA diving, and remote sediment sampling. It showed the existence of a natural coarse sand facies with wave-generated megaripples (coarse-grained ripples) which is overlain by a lightly rippled to flat fine sand facies. Repeated surveys indicate …
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Assessing the sustainability of seal tourism at Duiker Island, Hout Bay
… recently in the water through snorkelling and scuba diving activities. Like most wildlife tourism seal snorkelling operators can use their tours to educate clients about seal biology and threats, while providing them with a memorable physical experience with minimal impact on the seals. The …
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Rozdíl spotřeby dýchaného média mezi muži a ženami při jednotné zátěži v přístrojovém potápění
Název: Rozdíl spotřeby dýchaného média mezi muži a ženami při jednotné zátěži v přístrojovém potápění Cíle: Cílem této práce je zjistit, zda a jak je množství dýchaného média závislé na pohlaví potápěčů. Porovnat spotřebu mužů a žen při jednotné zátěži, tedy při jednotném profilu ponoru s maximální …