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 164 for “"Fisheries management"”.
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Fisheries management and flags of convenience
… have brought into focus the need for effective fisheries management and conservation measures. Many states have adopted international instruments or have participated in regional conservation committees to regulate and control fishing activities within their jurisdiction as well as on the high …
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Analysis of catchable trout fisheries management by computer simulation
Although strategies to meet most management objectives are relatively clearcut in single-species catchable trout programs, strategies become much more complex when two or more species are involved. A difficult problem that must be faced in evaluating catchable trout fisheries management strategies …
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Effective fisheries management with few data: A management procedure approach
… seen as an essential requirement for sound fisheries management. An alternative process less commonly adopted for the provision of reliable on-going management advice is called the Management Procedure (MP) approach. This approach is pro-active and strategic rather than reactive and …
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Effective fisheries management with few data: a management procedure approach
… seen as an essential requirement for sound fisheries management. An alternative process less commonly adopted for the provision of reliable on-going management advice is called the Management Procedure (MP) approach. This approach is pro-active and strategic rather than reactive and …
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The application of social judgement analysis to urban fisheries management
… was used to define design criteria for urban fisheries in small ponds and natural waterfronts. The analysis involved (1) compiling a team of expert judges, (2) creating a series of hypothetical cases for ponds and waterfronts, (3) having the experts judge the quality of the cases, and (4) …
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An application of climate change ensemble averaging methods to fisheries management
Fisheries management has a long history, having started gradually in the middle of the 19th century. As the awareness of the importance of managing fisheries increased, the need for fisheries scientists and for methodical research into the dynamics of fish populations arose. The methods and science …
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Pisces: a computer simulator to aid planning in state fisheries management agencies
Some fisheries management activities have clearer relationships with angler consumption than others, end the clarity is usually reflected by the amount of historical data available upon which to base the relationship. Adequate historical data exists to derive the relationships between angler-days …
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Incorporating social science into fisheries management to address challenges from aquatic invasive species
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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Tracking the movement of fish: skipper's logbooks and marine knowledges in fisheries management
Experts in both the line-fisheries and fisheries science sectors specialise in tracking the movement of fish. The knowledge thus gained is integral to both fishing practice and fisheries research, yet the two have often been posited against each other on opposite sides of a spectrum. This …
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Trophic models of the Benguela upwelling system : towards an ecosystem approach to fisheries management
… bottom-up flow control. A new way of approaching fisheries management is proposed according to a 4-step plan using information from ecosystem modelling studies to address the call for "responsible fishing" and the need to take ecosystem effects into account in managing fisheries.
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Walking the bridge from single- to multi-species approaches in Southern African fisheries management
Fisheries management worldwide is in flux with calls for an EAF (Ecosystem Approach to Fisheries) needing to be balanced with the ongoing requirements to provide timeous and realistic assessment-based advice for management ( often with major economic and social consequences), that is typically …
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Movement Ecology and Trophic Dynamics in the northern Gulf of Mexico: Implications for Fisheries Management
… supports lucrative commercial and recreational fisheries ranging from low-trophic-level species, such as penaeid shrimps and forage fishes, to high-trophic-level predators (e.g. Yellowfin Tuna). This thesis contributes to the region’s ecological knowledge, with the primary aim of enhancing …
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Investigating ecosystem-level effects of gillnet bycatch in Lake Erie: implications for commercial fisheries management
… one of the world's largest freshwater commercial fisheries. Bycatch has become a concern in current fisheries management. This study focused on four species in Lake Erie that include two major commercial and recreational species, walleye (Sander vitreus) and yellow perch (Perca flavescens); an …
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Robben Island penguin pressure model: a decision support tool for an ecosystems approach to fisheries management
The African penguin (Spheniscus demersus) population in southern Africa has declined from approximately 575 000 adults at the start of the 20th century to 180 000 adults in the early 1990s. The population is still declining, leading to the International Union for the Conservation of Nature …
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Informing U.S. Caribbean fisheries management through simulation modeling: a case of length-based mortality estimation models
… rates are attractive choices for assessing fisheries with data deficiencies. The U.S. Caribbean is exploring using these models and trying to optimize their commercial sampling program for such a model. A simulation model was constructed to compare two length-based mortality estimators, the …
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Towards Colombian small-scale marine fisheries management: Hacia un manejo de la pesca marina artesanal en Colombia
<p>Small-scale fisheries are an important economic and social foundation for the livelihood of coastal communities in Colombia. Yet artisanal fishing communities are characterized by a low quality of life and a struggle for the basic components of well being, in part because of inadequate marine …
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Evaluating Recruitment Seasonality of Red Abalone (<i>Haliotis Rufescens</i>) to Inform Fisheries Management and Conservation Policy
… understanding population dynamics to inform management and population restoration is critical. Recruitment dynamics of red abalone are poorly understood, with no prior knowledge of seasonal trends. To address this knowledge gap, I assessed monthly (July 2016-June 2017) and annual (2012-2016) …
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Predicting salmonid population ecology from individual fish responses to environmental changes: bridging behaviour, conservation and fisheries management.
Current habitat-association models used in the management of the socio-economically and ecologically important chalk stream salmonid populations fail to incorporate fish behaviour and the interactions between fish with their environment and this limits their ability predicting management-relevant …
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The Portfolio Analysis for Multi-species Fisheries Management in New Zealand: An Application in a Fishing Firm
… of marine species and the sustainability of fisheries development have become critical issues in current scientific research due to over-harvest. The traditional method used to manage fisheries is the single species approach where policy is aimed at maximum sustainable yield. However, with …
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Assessing the implementation efficacy of an ecosystem approach to Fisheries management in the South African sardine fishery
An Ecosystem Approach to Fisheries management (EAF) offers a holistic approach for sustainable fisheries management by extending the traditional target resources-orientated management (TROM) to include wider social-ecological dimensions of fisheries. An EAF requires balancing of multiple, often …
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