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 18 of 18 for “"Capture Fisheries"”.
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Managing for long term sustainability of seafood production from bottom tendered wild capture fisheries
Bottom fishing is an important source of anthropogenic disturbance affecting seafloor habitats across the world’s continental shelves. Minimizing these disturbances is a key objective of ocean management; however, opportunities to meet this objective have been hampered by limited information on the …
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An ecosystem-based approach to balancing cage aquaculture, capture fisheries, and biodiversity conservation in Lake Victoria, Kenya
… decreased due to mass extinction. The lake's fisheries transformed from artisanal to industrial, with exotic species displacing the indigenous flock, changes linked to local and global anthropogenic consequences. Cage aquaculture has been established in the lake as a result of dwindling catch …
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Valuation of Global Inland Fisheries Catch to Food Security
… are threatened with extinction. Inland capture fisheries contribute to food and nutritional security, livelihoods and help address the United Nations Sustainable Development Goals. Inland fisheries make a significant economic contribution nationally and globally, with an estimated value …
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Novel Aquafeed Towards A Sustainable Aquaculture
… by both the aquaculture industry and the capture fisheries, however, the flat-lined production of seafood from capture fisheries means aquaculture production should double in number to provide enough protein by 2050. Culturing fish at higher densities is being used as a way to increase the …
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Nature's contributions to people: socio-economic assessments of strategies to conserve natural capital and guide the sustainable provision and equitable distribution of ecosystem services in developing countries
… of the benefits of natural resources such as fisheries and forests. This has occurred in part because policy makers and natural resource users and managers, particularly in developing countries, lack information about the outcomes and impacts of current economic incentives that drive natural …
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Advancing Fisheries and Aquaculture Management with Machine Learning: Bycatch Risk Prediction and Autonomous Mortality Modeling
… role in many fields, including ecology and fisheries sciences. Machine learning models offer many advantages over traditional statistical analysis methods, such as being well suited for analyzing large data sets, capable of incorporating multiple data types in a single model, and able to …
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An analysis of the management and economics of salmon aquaculture
… solution to bridge the gap between declining capture fisheries and increasing seafood demand. However, the environmental impacts it creates have generated criticism. The overall objectives of this dissertation are to examine the economic consequences of environmental issues associated with …
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Modelling and prediction of the evolution of fish farm networks under aquatic disease spread
… between aquaculture sites and recreational fisheries plays a vital role in food security and leisure industries. These transfers form a network linking entities such as farms, hatcheries, and suppliers. When consignments carrying pathogens enter this densely connected system, disease can …
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Experimental Investigation of Elemental Incorporation in the Otoliths of Larval and Juvenile Fish: Implications for Use as Environmental Recorders
… the goals of sustainable management of marine capture fisheries. One of the most promising techniques is the use of elemental signatures in fish otoliths (ear stones), which record valuable life history data and serve as the link between fish and their environment. To validate the assumption …
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Booming illegal abalone fishery in Hangberg: Tough lessons for small-scale fisheries governance in South Africa
Marine capture fisheries around the world are widely perceived to be in a state of crisis, with growing recognition that conventional resource-centred management strategies are insufficient to counter ongoing problems of overexploitation. This is considered particularly true in the small‐scale …
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Examining the mechanisms for and factors affecting benefit sharing in two South African aquaculture projects
… food security, and relieving the pressure of capture fisheries. What remains uncertain is the extent to which these high-level policy interventions translate into benefits for people on the ground who are directly and indirectly affected by them. The aim of this study was to contribute to a …
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Examining the mechanisms for and factors affecting benefit sharing in two South African aquaculture projects
… food security, and relieving the pressure of capture fisheries. What remains uncertain is the extent to which these high-level policy interventions translate into benefits for people on the ground who are directly and indirectly affected by them. The aim of this study was to contribute to a …
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Immunostimulatory effects of different aspects of aquaculture on the host response in the edible sea urchin, paracentrotus lividus
… aquaculture, which may reduce pressures on capture fisheries. The overall objective of this thesis was to look at the immunostimulatory effects of different aspects of aquaculture on the host response of the edible sea urchin, Paracentrotus lividus, which are a prized delicacy (roe) in many …
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Dynamics of Social-ecological Traps: The Case of Small-scale fisheries in the Philippines
… are as follows: (1) Can the small-scale fisheries in the Philippines be characterised as being caught in a social-ecological trap? (2) What are the characteristics and structure of the social-ecological trap in these fisheries? (3) What are the factors that drive small-scale fishery …
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Dynamics of Social-ecological Traps: The Case of Small-scale fisheries in the Philippines
… are as follows: (1) Can the small-scale fisheries in the Philippines be characterised as being caught in a social-ecological trap? (2) What are the characteristics and structure of the social-ecological trap in these fisheries? (3) What are the factors that drive small-scale fishery …
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The contribution of small-scale fisheries to the community food security of one South African coastal community
Small-scale fisheries contribute to the food security of a significant portion of the global population through direct consumption and indirectly as a vital source of income. Approximately, 50 million individuals involved in capture fisheries are small-scale fishers and they contribute to 80 …
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The Contribution of Aquaculture to Poverty Alleviation and Food Security Among the Rural Poor in the Federal Capital Territory (FCT) Abuja
This study examined the impact of aquaculture on poverty alleviation and increased food security among the rural poor in the Federal Capital Territory (FCT) of Nigeria. The rapid rise of hunger and malnutrition around the world mostly affecting the very poor and the needy informed the decision to …
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Extrusion processing of selected fish feed blends containing distillers dried grains with solubles (DDGS)
… increasingly depleted wild fish stocks through capture fisheries. Commonly, fish meal has been used as the primary source to supply fish with essential proteins, but it is expensive. Feed represents over half of the operating costs for aquaculture operations. This study investigated using …