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 504 for “"fishery"”.
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Individual transferable fishery quotas under uncertainty
A model of a fishery with an uncertain fish stock is proposed to compare alternative management systems with individual transferable quotas (ITQs). Assumptions of the model include: (1) the fish stock fluctuates randomly year by year; (2) in-season stock depletion is small; (3) the total allowable …
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Cormorants and the Loch Leven trout fishery
… and a famous commercial brown trout Salmo trutta fishery, where Great Cormorants Phalacrocorax carbo have been shot in large numbers. This thesis describes the foraging behaviour of cormorants wintering on Loch Leven. It summarises changes in wintering numbers over a 32 year period, and reviews …
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The Southern Whale Fishery Company, Auckland Islands
The Southern Whale Fishery Company was a colonising whaling company, with a Royal Charter granted in early 1849. The Company was set up as an attempt to re~establish the declining British Southern Whale Fishery, and was actively promoted by Charles Enderby. The Company was formed after The Messrs. …
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Fishery Interaction Modeling of Cetacean Bycatch in the California Drift Gillnet Fishery to Inform a Dynamic Ocean Management Tool
… lead to interaction between target species in a fishery and marine mammals is a critical aspect in efforts to reduce bycatch. In the California drift gillnet fishery static management approaches and gear changes have reduced bycatch but neither measure ascertains the underlying dynamics causing …
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Fishery and Population Dynamics of Mississippi’s Spotted Seatrout
… is the most popular recreational inshore fishery in Mississippi coastal waters. Because of the popularity of Spotted Seatrout in Mississippi as a recreational target and the magnitude of harvest, quantitative approaches to describe the population and fishery dynamics of the Mississippi …
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Bayesian statistics for fishery stock assessment and management
… work is about the use of Bayesian statistics in fishery stock assessment and management. Multidimensional posterior distributions replace classical parameter estimation in surplus-production and delay-difference models. The maximization of expected utilities replaces the estimation of optimal …
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The fish and fishery of Stocks Reservoir, Lancashire
This study of the fish and fishery of Stocks Reservoir, Lancashire, is the result of contract work undertaken by the researcher for North West Water (NWW). In an attempt to describe the location of the study, relevant information covering the catchment, local geology, reservoir construction and …
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Cooperative fishery and wildlife research units program outputs
The Cooperative Fishery and Wildlife Research Units program is a federal-state-private cooperative program of training, research, and technical assistance. Formally authorized by Congress in 1960, the program actually began 26 years earlier with establishment of wildlife units at land grant …
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Cultivation of microalgae on fishery effluent in industrial environment
Eftir mikinn vöxt á síðustu árum stendur fiskeldi nú frami fyrir því að auðlindir geti orðið takmarkandi fyrir frekari vöxt - viltur fiskur sem notaður er í fóður er ekki óendanleg auðlind. Plöntufóður ræktað á landi gæti komið í stað fisks, en það hefur þó sína ókosti s.s. samkeppni um land við …
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Assessment of the Kaikoura amateur fishery for rock lobsters
… user-value, were tested on the Kaikoura Amateur Fishery for rock lobsters. It was found that amateur harvest of rock lobsters for the Kaikoura Peninsula is a significant proportion of the total harvest. No accurate figure for user value was able to be placed on the amateur fishery.
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DETERMINATION OF CONTAMINANTS IN FISHERY PRODUCTS TO SUPPORT FOOD SAFETY
The contamination of fish and fishery products poses significant challenges to food safety, necessitating a comprehensive understanding of pollutants and their potential risks. This thesis focuses on different contaminants such as Persistent Organic Pollutants (POPs) as defined by the Stockholm …
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Cultural Politics and Mining Development in Alaska's Bristol Bay Fishery
The Bristol Bay fishery in Southwest Alaska boasts the world’s largest remaining commercial harvest of sockeye salmon (Oncorhyncus nerka). In the previous decade, the transnational mining industry has intensified its efforts to develop open-pit mining operations near the headwaters of the region’s …
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Cultural Politics and Mining Development in Alaska's Bristol Bay Fishery
The Bristol Bay fishery in Southwest Alaska boasts the world’s largest remaining commercial harvest of sockeye salmon (Oncorhyncus nerka). In the previous decade, the transnational mining industry has intensified its efforts to develop open-pit mining operations near the headwaters of the region’s …
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The commercial beach-seine fishery in False Bay, South Africa
… lobby that the commercial beach-seine fishery in False Bay was jeopardizing fish stocks and detrimentally affecting the ecology of the Bay. Its main aims were to quantify the current catch and place it in an historical perspective, to describe seasonal patterns in catches and effort and …
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Implementation of fisheries co-management in Mweru- Luapula fishery, Northern Zambia.
… introduction of Co- management in Mweru- Luapula fishery in the early 1990’s by the Department of Fisheries (DOF) aimed at replacing exclusionary state control. However, lack of supporting legislation and funding in most fisheries led to its collapse. Currently, co-management legislation exists …
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An economic evaluation of the Rakaia fishery as a recreation resource
… to determine the economic value of the Rakaia's fishery to its users and to provide data to be included in the irrigation proposals' cost benefit calculation. Two methods were used: Firstly, the travel cost method and secondly an application of compensation principles in the evaluation of the …
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The Use of Fishery Wastes in the Feeds for Farmed Fish
he potential of the three methods of using fishery wastes in commercial feeds for farmed fish was investigated; the first of these is their use in semi-moist feeds. It was found that neither the inclusion of fishery products nor the moisture content of the diet had a significant effect upon the …
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