Utility And Implications Of No Take Marine Reserves In Fishery Management Strategies
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Utility And Implications Of No Take Marine Reserves In Fishery Management Strategies
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Author : Carey R. McGilliard
language : en
Publisher:
Release Date : 2012
Utility And Implications Of No Take Marine Reserves In Fishery Management Strategies written by Carey R. McGilliard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Fish populations categories.
This work explores (1) the potential for using marine reserves to manage data-poor fish populations, (2) the potential for marine reserves to influence the performance of commonly used stock assessment approaches relative to alternative approaches that explicitly account for a marine reserve, and (3) hypotheses about the role of older females to population persistence and arguments that marine reserves are needed to maintain this role. In Chapter 1, the potential use of the ratio of the density of fish outside a marine reserve to that inside the reserve in a fishery management control rule (DRCR) is evaluated by Management Strategy Evaluation. The cumulative catch under the optimal DRCR was 90% of the cumulative catch from an optimal constant effort rule (CER). A small range of parameter values for the DRCR produced 75% or more of the cumulative catch produced from optimal CERs for a variety of assumptions about biology and initial stock status. The optimal DRCR was most sensitive to movement patterns of larvae and adults and survey variability. In Chapter 2, a simulation model was used to analyze the ability of several stock assessment approaches to estimate current biomass after the implementation of a marine reserve. Results show that assessing populations as a single stock without accounting for a no-take marine reserve and performing separate assessments for fished and protected areas can lead to severely biased estimates of biomass. An assessment approach which explicitly accounted for fish movement was robust to uncertainty in movement patterns. In Chapter 3, two popular hypotheses are modeled; one assumes that older mothers produce larger offspring capable of surviving longer starvation periods than offspring from younger mothers. The other modeled hypothesis is that mothers of different ages spawned in different times or locations. Recruitment variability was 55-65% lower than for control models in the absence of fishing and increased with increases in fishing mortality rates for both models. A marine reserve policy did not benefit measures of sustainability for either model.
Marine Protected Areas
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2001-06-01
Marine Protected Areas written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-06-01 with Science categories.
Although the ocean-and the resources within-seem limitless, there is clear evidence that human impacts such as overfishing, habitat destruction, and pollution disrupt marine ecosystems and threaten the long-term productivity of the seas. Declining yields in many fisheries and decay of treasured marine habitats, such as coral reefs, has heightened interest in establishing a comprehensive system of marine protected areas (MPAs)-areas designated for special protection to enhance the management of marine resources. Therefore, there is an urgent need to evaluate how MPAs can be employed in the United States and internationally as tools to support specific conservation needs of marine and coastal waters. Marine Protected Areas compares conventional management of marine resources with proposals to augment these management strategies with a system of protected areas. The volume argues that implementation of MPAs should be incremental and adaptive, through the design of areas not only to conserve resources, but also to help us learn how to manage marine species more effectively.
The Fishery Effects Of Marine Reserves And Fishery Closures
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Author : Fiona Rachel Gell
language : en
Publisher:
Release Date : 2003
The Fishery Effects Of Marine Reserves And Fishery Closures written by Fiona Rachel Gell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Coral reef conservation categories.
Describes and evaluates the use of marine reserves as a fishery management tool, and concludes that efficacy of this strategy is evidenced by increases in affected fish stocks, increases in affected fishes' biomass, increased catches in areas close to reserve boundaries (known as "fishing-the-line"), inter alia
Marine Protected Areas
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher: Food & Agriculture Org.
Release Date : 2018-11-09
Marine Protected Areas written by Food and Agriculture Organization of the United Nations and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-09 with Science categories.
Building on work presented at the IUCN World Parks Congress (WPC) held in Australia in 2014, this document outlines experiences with aquatic protected areas (PAs), marine protected areas (MPAs) and protected areas in inland waters in the context of livelihoods and food security. It provides a general overview of MPAs and reports on their interface with livelihoods and food security, based on case studies in Africa, Asia, Latin America and Oceania. It also synthesizes the papers conclusions and discusses the observed outcomes of aquatic PAs, together with problems and solutions.
Marine Protected Areas
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 2001-05-01
Marine Protected Areas written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-05-01 with Science categories.
Although the ocean-and the resources within-seem limitless, there is clear evidence that human impacts such as overfishing, habitat destruction, and pollution disrupt marine ecosystems and threaten the long-term productivity of the seas. Declining yields in many fisheries and decay of treasured marine habitats, such as coral reefs, has heightened interest in establishing a comprehensive system of marine protected areas (MPAs)-areas designated for special protection to enhance the management of marine resources. Therefore, there is an urgent need to evaluate how MPAs can be employed in the United States and internationally as tools to support specific conservation needs of marine and coastal waters. Marine Protected Areas compares conventional management of marine resources with proposals to augment these management strategies with a system of protected areas. The volume argues that implementation of MPAs should be incremental and adaptive, through the design of areas not only to conserve resources, but also to help us learn how to manage marine species more effectively.
Modeling The Role Of No Take Marine Reserves In Fisheries Management
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Author : Deidre F. Gilbert
language : en
Publisher:
Release Date : 2002
Modeling The Role Of No Take Marine Reserves In Fisheries Management written by Deidre F. Gilbert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Fishery management categories.
The Role Of Marine Reserves As Fisheries Management Tools
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Author : Trevor J. Ward
language : en
Publisher:
Release Date : 2001
The Role Of Marine Reserves As Fisheries Management Tools written by Trevor J. Ward and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Electronic books categories.
The Controversy Over Marine Protected Areas
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Author : Alex Caveen
language : en
Publisher: Springer
Release Date : 2014-10-17
The Controversy Over Marine Protected Areas written by Alex Caveen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-17 with Technology & Engineering categories.
This book is a critical analysis of the concept of marine protected areas (MPAs) particularly as a tool for marine resource management. It explains the reasons for the extraordinary rise of MPAs to the top of the political agenda for marine policy, and evaluates the scientific credentials for the unprecedented popularity of this management option. The book reveals the role played by two policy networks – epistemic community and advocacy coalition – in promoting the notion of MPA, showing how advocacy for marine reserves by some scientists based on limited evidence of fisheries benefits has led to a blurring of the boundary between science and politics. Second, the study investigates whether the scientific consensus on MPAs has resulted in a publication bias, whereby pro-MPA articles are given preferential treatment by peer-reviewed academic journals, though it found only limited evidence of such a bias. Third, the project conducts a systematic review of the literature to determine the ecological effects of MPAs, and reaches the conclusion that there is little proof of a positive impact on finfish populations in temperate waters. Fourth, the study uses discourse analysis to trace the effects of a public campaigning policy network on marine conservation zones (MCZs) in England, which demonstrated that there was considerable confusion over the objectives that MCZs were being designated to achieve. The book’s conclusion is that the MPA issue shows the power of ideas in marine governance, but offers a caution that scientists who cross the line between science and politics risk exaggerating the benefits of MPAs by glossing over uncertainties in the data, which may antagonise the fishing industry, delay resolution of the MPA issue, and weaken public faith in marine science if and when the benefits of MCZs are subsequently seen to be limited.
Evaluating The Impacts Of Marine Protected Areas On Ecological Processes In Benthic Fisheries
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Author : Katherine Anne Kaplan
language : en
Publisher:
Release Date : 2017
Evaluating The Impacts Of Marine Protected Areas On Ecological Processes In Benthic Fisheries written by Katherine Anne Kaplan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Marine protected areas (MPAs) are increasingly employed worldwide to manage and conserve marine ecosystem services such as fisheries, coastal protection, habitat restoration, biodiversity conservation and tourism. They are frequently used as a place-based approach with the aim of conserving fishery resources by restricting fishing to specific zones. MPAs are particularly useful for managing species that are not highly migratory since these species’ habitats can be restricted to ranges within zoning boundaries. For example, benthic communities and many invertebrate fisheries can be managed by the use of MPAs because their habitat ranges can be delineated and zoned for protection or exploitation. In this work, I have researched ecological interactions in the benthic community of MPAs and evaluated governance strategies used to promote compliance with MPA regulations. Enforcement of MPAs remains one of the key factors in ensuring sustainable resource use for some fisheries, though enforcement mechanisms leading to successful outcomes remain poorly understood worldwide. As a result, it is necessary to consider how different governance strategies used to encourage compliance with MPA regulations may best sustain fishery resources. In chapter one, I have analyzed different strategies used to promote compliance with regulations on ecological indicators of condition in the Greater Caribbean region. I found that the use of both penalties and incentives to promote compliance may help form successful governance strategies. I also have examined ecological relationships affected by the presence of MPAs. In chapter two I evaluate the distribution of an invasive tunicate, its interaction with the Atlantic sea scallop and the impact of the protected area as compared to open areas on this interaction. In chapter three I evaluate how the invasive tunicate interacts with other species of the invertebrate community and how these interactions are altered by the protected area and the presence of fishing. This work enhances our understanding of marine management, though an analysis of MPA governance and ecological interactions shaped by MPAs. Understanding both the governance and ecological aspects of MPAs provides a holistic framework for understanding their utility for marine conservation and management. ...
Policy Proposals And Operational Guidance For Ecosystem Based Management Of Marine Capture Fisheries
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Author : Trevor J. Ward
language : en
Publisher: WWF UK (World Wide Fund for Nature)
Release Date : 2002
Policy Proposals And Operational Guidance For Ecosystem Based Management Of Marine Capture Fisheries written by Trevor J. Ward and has been published by WWF UK (World Wide Fund for Nature) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Ecosystem management categories.