Download or read book Aligning Complex Adaptive Systems Theory and Data limited Assessment Strategies for Improved Fisheries Management written by Kristen Taber Honey and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: By combining SCUBA fieldwork in southern Monterey Bay kelp forests with statistical modeling, this thesis addresses how to successfully implement, monitor, and assess the efficacy of ecosystem-based management* approaches, specifically applied to the California nearshore and U.S. West Coast fisheries. It explores the interaction between marine populations, with an emphasis on fish and fisheries management, and their broader environmental context -- including the social-ecological and management context -- with an aim to develop new tools for scientific understanding and improved management of these populations. Results include the characterization of how fish respond to coastal hydrodynamics on a local scale (e.g., ocean swell, water temperature, and dissolved oxygen) with insight into how to use this knowledge to inform future sampling in California's marine reserves, including adaptive sampling designs that incorporate effects of local hydrodynamic regimes. I then integrate local-scale SCUBA data on fish populations, collected on the scale of a single marine reserve, into fisheries models. In collaboration with NOAA Fisheries scientists, I propose a new analytical method that provides reference points to inform management. We call this method "reserve-based SPR." It is a practical, easy-to-implement, information-limited method (i.e., "data-poor method"). This work brings together conservation-based tools, specifically marine reserves, with fisheries management approaches. Data-poor methods like reserve-based SPR, although subject to many caveats, can often provide scientific guidance to reduce biological and management risks. To organize data-poor fisheries methods into one coherent landscape with case-study examples for managers to use as guidelines, I offer a new framework. This data-poor framework is designed to help managers and stakeholders consider and choose appropriate analytical methods for their specific context. No data-poor method is perfect but many produce "good enough" sustainable yield estimates or ecosystem indicators with bias that is risk-averse and precautionary for population sustainability. Collectively, this thesis is united in its theme of understanding uncertainty and complex, adaptive systems for applied science and management purposes. *NOAA Fisheries (2006) definition of "ecosystem-based management": An approach that takes major ecosystem components and services -- both structural and functional -- into account in managing fisheries. It values habitat, embraces a multispecies perspective, and is committed to understanding ecosystem processes. Its goal is to rebuild and sustain populations, species, biological communities, and marine ecosystems at high levels of productivity and biological diversity so as not to jeopardize a wide range of goods and services from marine ecosystems while providing food, revenue, and recreation for humans.

Download or read book Aligning Stock Assessment and Harvest Strategies in Data limited Multi species Fisheries written by Samuel Johnson and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contemporary fisheries management involves setting quantitative objectives, and establishing decision rules that determine management actions in response to monitoring data. Within that system, feedback harvest strategies are developed via simulation, where various decision rule features are tested against realistic fishery conditions, and are ranked by their relative performance measured against the quantitative fishery objectives. While the adoption of formal harvest strategies has been increasing globally for some time, most contemporary harvest strategies, and their associated stock assessments, continue to be single-species oriented despite a high prevalence of technical interactions in fisheries. Over three research chapters, I use a simulation approach to investigate whether multi-species harvest strategies, based on hierarchical stock assessment models and multi-species reference points that incorporate technical interactions among species, are better suited to the management of data-limited, multi-species fisheries than traditional single-species approaches. First, I use simulation-evaluation to show that the estimation performance of hierarchical multi-stock surplus production models is more robust to declining data quality than a single-stock version of the same model, creating potential for improved information feedbacks in data-limited contexts. Next, I show that TACs set based on hierarchical model estimates of biomass and productivity are better able to maximise yield under all data quantity scenarios, thanks to negatively correlated biases in key management parameters and target harvest rates that acknowledge technical interactions. Finally, I use closed loop simulation to compare the economic and conservation risks of single-species maximum sustainable yield (MSY), multi-species MSY, or maximum economic yield (MEY) harvest strategies. Taken together, the results of my thesis support expanded usage of hierarchical models in fisheries stock assessment and management, which may lead to wider adoption of formal harvest strategies. Further, I show that yields, food security, and/or economic rent can be increased (not always at the same time) by including technical interactions in reference point calculations.

Download or read book Improving Fish Stock Assessments written by Committee on Fish Stock Assessment Methods and published by National Academies Press. This book was released on 1998-03-13 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries data--for example underreporting or changes in the likelihood that fish can be caught with a given type of gear--can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.

Download or read book Impacts of climate change on fisheries and aquaculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-01-06 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report indicates that climate change will significantly affect the availability and trade of fish products, especially for those countries most dependent on the sector, and calls for effective adaptation and mitigation actions encompassing food production.

Download or read book The Future of Fisheries Science in North America written by Richard J. Beamish and published by Springer Science & Business Media. This book was released on 2009-02-07 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries science in North America is changing in response to a changing climate, new technologies, an ecosystem approach to management and new thinking about the processes affecting stock and recruitment. Authors of the 34 chapters review the science in their particular fields and use their experience to develop informed opinions about the future. Everyone associated with fish, fisheries and fisheries management will find material that will stimulate their thinking about the future. Readers will be impressed with the potential for new discoveries, but disturbed by how much needs to be done in fisheries science if we are to sustain North American fisheries in our changing climate. Officials that manage or fund fisheries science will appreciate the urgency for the new information needed for the stewardship of fish populations and their ecosystems. Research organizations may want to keep some extra copies for a future look back into the thoughts of a wide range of fisheries professionals. Fisheries science has been full of surprises with some of the surprises having major economic impacts. It is important to minimize these impacts as the demand for seafood increases and the complexities of fisheries management increase.

Download or read book The Ecosystem Approach to Fisheries written by Gabriella Bianchi and published by CABI. This book was released on 2008 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Sustainable use of aquatic ecosystems is high on regional, national and international agendas and central to the implementation of international agreements on biological diversity, responsible fisheries and fish stock management. Since 2001, when political commitments were made to implement the ecosystem approach, countries have begun to incorporate ecosystem considerations into their fisheries management and have met with varied success." "The Ecosystem Approach to Fisheries covers both theoretical andapplied aspects of sustainable management, with a particular emphasis on reviewing concepts and addressing implementation issues in the form of case studies from around the world. Personal experiences are considered from diverse backgrounds and discuss the constraints encountered, strategies identified and best practices to facilitate further implementation."--BOOK JACKET.

Download or read book Adaptive Environmental Management written by Catherine Allan and published by Springer Science & Business Media. This book was released on 2009-06-05 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive management is the recommended means for continuing ecosystem management and use of natural resources, especially in the context of ‘integrated natural resource management’. Conceptually, adaptive management is simply learning from past management actions to improve future planning and management. However, adaptive management has proved difficult to achieve in practice. With a view to facilitating better practice, this new book presents lessons learned from case studies, to provide managers with ready access to relevant information. Cases are drawn from a number of disciplinary fields, including management of protected areas, watersheds and farms, rivers, forests, biodiversity and pests. Examples from Australia, New Zealand, the USA, Canada, the UK and Europe are presented at a variety of scales, from individual farms, through regional projects, to state-wide planning. While the book is designed primarily for practitioners and policy advisors in the fields of environmental and natural resource management, it will also provide a valuable reference for students and researchers with interests in environmental, natural resource and conservation management.

Download or read book Adaptive Co Management written by Derek Armitage and published by UBC Press. This book was released on 2010-10-01 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Canada and around the world, new concerns with adaptive processes, feedback learning, and flexible partnerships are reshaping environmental governance. Meanwhile, ideas about collaboration and learning are converging around the idea of adaptive co-management. This book provides a comprehensive synthesis of the core concepts, strategies, and tools in this emerging field, informed by a diverse group of researchers and practitioners with over two decades of experience. It also offers a diverse set of case studies that reveal the challenges and implications of adaptive co-management thinking.

Download or read book Adaptive management of fisheries in response to climate change written by ​Bahri, T., Vasconcellos, M., Welch, D.J., Johnson, J., Perry, R.I., Ma, X. & Sharma, R. and published by Food & Agriculture Org.. This book was released on 2021-02-01 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report aims to accelerate climate change adaptation implementation in fisheries management throughout the world. It showcases how flexibility can be introduced in the fisheries management cycle in order to foster adaptation, strengthen the resilience of fisheries, reduce their vulnerability to climate change, and enable managers to respond in a timely manner to the projected changes in the dynamics of marine resources and ecosystems. The publication includes a set of good practices for climate-adaptive fisheries management that have proven their effectiveness and can be adapted to different contexts, providing a range of options for stakeholders including the fishing industry, fishery managers, policymakers and others involved in decision-making. These good practices were linked to one or more of the three common climate-related impacts on fisheries resources: distributional change; productivity change; and species composition change. Therefore, these three impacts can serve as practical entry points to guide decision-makers in identifying good practice adaptation measures suitable for their local contexts. These good practices are based upon transferable experiences and lessons learned from the thirteen case studies across the globe and hopefully will contribute to greater uptake and implementation of climate-adaptive fisheries management measures on the ground.

Download or read book Ecosystems and Human Well being written by Joseph Alcamo and published by . This book was released on 2003 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystems and Human Well-Being is the first product of the Millennium Ecosystem Assessment, a four-year international work program designed to meet the needs of decisionmakers for scientific information on the links between ecosystem change and human well-being. The book offers an overview of the project, describing the conceptual framework that is being used, defining its scope, and providing a baseline of understanding that all participants need to move forward. The Millennium Assessment focuses on how humans have altered ecosystems, and how changes in ecosystem services have affected human well-being, how ecosystem changes may affect people in future decades, and what types of responses can be adopted at local, national, or global scales to improve ecosystem management and thereby contribute to human well-being and poverty alleviation. The program was launched by United National Secretary-General Kofi Annan in June 2001, and the primary assessment reports will be released by Island Press in 2005. Leading scientists from more than 100 nations are conducting the assessment, which can aid countries, regions, or companies by: providing a clear, scientific picture of the current sta

Download or read book How Learning Works written by Susan A. Ambrose and published by John Wiley & Sons. This book was released on 2010-04-16 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for How Learning Works "How Learning Works is the perfect title for this excellent book. Drawing upon new research in psychology, education, and cognitive science, the authors have demystified a complex topic into clear explanations of seven powerful learning principles. Full of great ideas and practical suggestions, all based on solid research evidence, this book is essential reading for instructors at all levels who wish to improve their students' learning." —Barbara Gross Davis, assistant vice chancellor for educational development, University of California, Berkeley, and author, Tools for Teaching "This book is a must-read for every instructor, new or experienced. Although I have been teaching for almost thirty years, as I read this book I found myself resonating with many of its ideas, and I discovered new ways of thinking about teaching." —Eugenia T. Paulus, professor of chemistry, North Hennepin Community College, and 2008 U.S. Community Colleges Professor of the Year from The Carnegie Foundation for the Advancement of Teaching and the Council for Advancement and Support of Education "Thank you Carnegie Mellon for making accessible what has previously been inaccessible to those of us who are not learning scientists. Your focus on the essence of learning combined with concrete examples of the daily challenges of teaching and clear tactical strategies for faculty to consider is a welcome work. I will recommend this book to all my colleagues." —Catherine M. Casserly, senior partner, The Carnegie Foundation for the Advancement of Teaching "As you read about each of the seven basic learning principles in this book, you will find advice that is grounded in learning theory, based on research evidence, relevant to college teaching, and easy to understand. The authors have extensive knowledge and experience in applying the science of learning to college teaching, and they graciously share it with you in this organized and readable book." —From the Foreword by Richard E. Mayer, professor of psychology, University of California, Santa Barbara; coauthor, e-Learning and the Science of Instruction; and author, Multimedia Learning

Download or read book Managing Small scale Fisheries written by Fikret Berkes and published by IDRC. This book was released on 2001 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Managing Small-Scale Fisheries: Alternative directions and methods

Download or read book The Regional Impacts of Climate Change written by Intergovernmental Panel on Climate Change. Working Group II. and published by Cambridge University Press. This book was released on 1998 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cambridge, UK : Cambridge University Press, 1998.

Download or read book A Global Assessment of Fisheries Bycatch and Discards written by Dayton L. Alverson and published by Food & Agriculture Org.. This book was released on 1994 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors estimate that between 17.9 and 39.5 million tons (average 27.0 million) of fish are discarded each year in commercial fisheries. These estimates are based on a review of over 800 papers. The highest quantities of discards are from the Northwest Pacific while tropical shrimp trawl fisheries generate a higher proportion of discards than any other fishery type, accounting for one third of the global total. Of four major gear groups, shrimp trawls stand alone at the top of the list; bottom trawls, long-lines and pot fisheries come next. The third group consists of Japanese high-seas drift net fisheries, Danish seines and purse seines for capelin. Relatively low levels result from pelagic trawls, small pelagic purse seines and some of high seas drift nets. The authors point to inadequate data to determine the biological, ecological, economic and cultural impacts of discards although economic losses run to billions of dollars. However, it appears most likely that socio-cultural attitudes towards marine resources will guide international discard policies. Techniques to reduce bycatch levels including traditional net selectivity, fishing gear development and time/area restrictions, are discussed. Effort reduction, incentive programmes and individual transferable quotas (that make the vessel responsible for bycatch reduction) are seen as promising avenues for the future. However, quick solutions to the problem are unlikely and much more information is required. The publication includes a diskette with the complete Bycatch Database, which was compiled for the study, and a summary of it.

Download or read book The State of World Fisheries and Aquaculture 2020 written by FAO and published by Food and Agriculture Organization of the United Nations. This book was released on 2020-06-01 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 2020 edition of The State of World Fisheries and Aquaculture has a particular focus on sustainability. This reflects a number of specific considerations. First, 2020 marks the twenty-fifth anniversary of the Code of Conduct for Responsible Fisheries (the Code). Second, several Sustainable Development Goal indicators mature in 2020. Third, FAO hosted the International Symposium on Fisheries Sustainability in late 2019, and fourth, 2020 sees the finalization of specific FAO guidelines on sustainable aquaculture growth, and on social sustainability along value chains. While Part 1 retains the format of previous editions, the structure of the rest of the publication has been revised. Part 2 opens with a special section marking the twenty fifth anniversary of the Code. It also focuses on issues coming to the fore, in particular, those related to Sustainable Development Goal 14 and its indicators for which FAO is the “custodian” agency. In addition, Part 2 covers various aspects of fisheries and aquaculture sustainability. The topics discussed range widely, from data and information systems to ocean pollution, product legality, user rights and climate change adaptation. Part 3 now forms the final part of the publication, covering projections and emerging issues such as new technologies and aquaculture biosecurity. It concludes by outlining steps towards a new vision for capture fisheries. The State of World Fisheries and Aquaculture aims to provide objective, reliable and up-to-date information to a wide audience – policymakers, managers, scientists, stakeholders and indeed everyone interested in the fisheries and aquaculture sector.

Download or read book An Assessment of Atlantic Bluefin Tuna written by National Research Council and published by National Academies Press. This book was released on 1994-02-01 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews and evaluates the scientific basis of U.S. management of fisheries for Atlantic bluefin tuna. In particular, it focuses on the issues of stock structure and stock assessments used by the National Oceanic and Atmospheric Administration's National Marine Fisheries Service for management under the International Convention for the conservation of Atlantic Tunas.

Download or read book Ecosystem Based Fisheries Management written by Jason Link and published by Cambridge University Press. This book was released on 2010-10-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Responsible fisheries management is of increasing interest to the scientific community, resource managers, policy makers, stakeholders and the general public. Focusing solely on managing one species of fish stock at a time has become less of a viable option in addressing the problem. Incorporating more holistic considerations into fisheries management by addressing the trade-offs among the range of issues involved, such as ecological principles, legal mandates and the interests of stakeholders, will hopefully challenge and shift the perception that doing ecosystem-based fisheries management is unfeasible. Demonstrating that EBFM is in fact feasible will have widespread impact, both in US and international waters. Using case studies, underlying philosophies and analytical approaches, this book brings together a range of interdisciplinary topics surrounding EBFM and considers these simultaneously, with an aim to provide tools for successful implementation and to further the debate on EBFM, ultimately hoping to foster enhanced living marine resource management.