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Author: Alan Benedict Beardmore
Publisher:
ISBN:
Category :
Languages : en
Pages : 326
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Book Description
Human Dimensions (HD) research in recreational fisheries is predicated on the understanding that successful management depends on knowing what anglers want from their fishing experience. While researchers have long recognized that diversity exists among anglers in terms of attitudes and preferences, few comparative studies account for the role played by diverse fishing opportunities in fulfilling anglers' goals. Instead, most studies focus either on fishing as a general activity or generalize from fishery-specific case studies. Consequently, HD research has faced criticism from fisheries ecologists and managers regarding its management relevance. Leveraging an initiative to develop comprehensive catch and harvest information in the German state of Mecklenburg-Vorpommern (M-V) I collected additional angler information to explore HD constructs. I used recreation specialization as a framework for understanding angler heterogeneity while exploring how resource diversity affects preferred recreational outcomes. First, I examined the link between motivations and behavior, demonstrating that the relative importance of catch and non-catch outcomes depends on target species, and that angler specialization and motivations are related. Second, I used random utility theory to test how well different measures of specialization explain preference heterogeneity observed after accounting for target species, finding centrality-to-lifestyle to be the best predictor. Third, I examined the influence of centrality-to-lifestyle and target species on the importance of several catch and non-catch characteristics related to satisfaction-with-catch. While the model parameters suggested that more and larger fish are universally desired, the relative importance of these characteristics depended on both targeted species and specialization level. For my last study, I presented a case study of particular relevance to conservation of the European eel (Anguilla anguilla) fishery in M-V, by evaluating the effect of proposed regulatory changes on angling effort and harvest. Overall, and regardless of the specialization level, anglers were largely unresponsive to proposed legislation to partially close the fishery, suggesting more drastic measures may be required to meet ecological objectives. Together, these studies reinforce that researchers and practitioners should be wary of applying general insights of HD research to specific situations. Not only does the 'average' angler not exist, but neither does the 'average' fishing trip.
Author: Alan Benedict Beardmore
Publisher:
ISBN:
Category :
Languages : en
Pages : 326
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Book Description
Human Dimensions (HD) research in recreational fisheries is predicated on the understanding that successful management depends on knowing what anglers want from their fishing experience. While researchers have long recognized that diversity exists among anglers in terms of attitudes and preferences, few comparative studies account for the role played by diverse fishing opportunities in fulfilling anglers' goals. Instead, most studies focus either on fishing as a general activity or generalize from fishery-specific case studies. Consequently, HD research has faced criticism from fisheries ecologists and managers regarding its management relevance. Leveraging an initiative to develop comprehensive catch and harvest information in the German state of Mecklenburg-Vorpommern (M-V) I collected additional angler information to explore HD constructs. I used recreation specialization as a framework for understanding angler heterogeneity while exploring how resource diversity affects preferred recreational outcomes. First, I examined the link between motivations and behavior, demonstrating that the relative importance of catch and non-catch outcomes depends on target species, and that angler specialization and motivations are related. Second, I used random utility theory to test how well different measures of specialization explain preference heterogeneity observed after accounting for target species, finding centrality-to-lifestyle to be the best predictor. Third, I examined the influence of centrality-to-lifestyle and target species on the importance of several catch and non-catch characteristics related to satisfaction-with-catch. While the model parameters suggested that more and larger fish are universally desired, the relative importance of these characteristics depended on both targeted species and specialization level. For my last study, I presented a case study of particular relevance to conservation of the European eel (Anguilla anguilla) fishery in M-V, by evaluating the effect of proposed regulatory changes on angling effort and harvest. Overall, and regardless of the specialization level, anglers were largely unresponsive to proposed legislation to partially close the fishery, suggesting more drastic measures may be required to meet ecological objectives. Together, these studies reinforce that researchers and practitioners should be wary of applying general insights of HD research to specific situations. Not only does the 'average' angler not exist, but neither does the 'average' fishing trip.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251072140
Category : Nature
Languages : en
Pages : 194
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Book Description
The importance of recreational fisheries is increasing in many transitional economies. These guidelines focus on recreational fisheries and describe strategies to promote environmentally sustainable and socially responsible management of such fisheries. To this end, the document details policy, managerial and behavioural recommendations for sustainable recreational fisheries.
Author: Robert Arlinghaus
Publisher: Turnshare Ltd. - Publisher
ISBN: 1903343364
Category : Fishery management
Languages : en
Pages : 385
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Book Description
Author: Max Birdsong
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Englische Version: To manage recreational fisheries effectively, researchers and managers must understand angler behaviour across multiple sources of diversity. Anglers themselves are a heterogeneous group, and they interact with a diversity of fishing opportunities across a diversity of social-ecological contexts. The objective of my dissertation was to study angler satisfaction, a key consideration in the management of recreational fisheries, and angler behaviour across these sources of diversity. First, I performed a meta-analysis of angler satisfaction to study the catch and non-catch related determinants of recreational angler satisfaction. The aggregated effect sizes revealed that catch-related (i.e., catch rate, size of largest fish caught, fish harvested) components were more strongly related to angling satisfaction than non-catch related components (e.g., environmental quality). Following the meta-analysis, I used existing angler diary data from contrasting social-ecological contexts in Germany to explore how catch satisfaction and catch et release behaviour varied, and how they may be moderated by situational and social-ecological characteristics. This research revealed that the importance of catch outcomes towards catch satisfaction varied across angler types (i.e., angler specialization), situational, and social-ecological contexts. Similarly, I found that harvest behaviours also varied significantly across these sources of diversity. Altogether, my doctoral research supports the assertion that recreational fisheries researchers need to account for diversity across angler types, situational contexts, and social-ecological contexts. Work that fails to account for these sources of diversity will have the potential to mislead fisheries managers or reduce faith in human dimensions research within recreational fisheries.
Author: World Bank
Publisher: World Bank Publications
ISBN: 0821379143
Category : Technology & Engineering
Languages : en
Pages : 130
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Book Description
'The Sunken Billions: The Economic Justification for Fisheries Reform' shows the difference between the potential and actual net economic benefits from marine fisheries is about $50 billion per year, or some $2 trillion over the last three decades. If fish stocks were rebuilt, the current marine catch could be achieved with approximately half the current global fishing effort. This illustrates the massive overcapacity of the global fleet. The excess competition for the limited fish resources results in declining productivity, economic inefficiency, and depressed fisher incomes. The focus on the deteriorating biological health of world fisheries has tended to obscure their equally critical economic health. Achieving sustainable fisheries presents challenges not only of biology and ecology, but also of managing political and economic processes and replacing pernicious incentives with those that foster improved governance and responsible stewardship. Improved governance of marine fisheries could regain a substantial part of this annual economic loss and contribute to economic growth. Fisheries governance reform is a long-term process requiring political will and consensus vision, built through broad stakeholder dialogue. Reforms will require investment in good governance, including strengthening marine tenure systems and reducing illegal fishing and harmful subsidies. Realizing the potential economic benefits of fisheries means reducing fishing effort and capacity. To offset the associated social adjustment costs, successful reforms should provide for social safety nets and alternative economic opportunities for affected communities.
Author: Matthew Bakker
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
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Book Description
The inclusion of heterogeneous angler preferences could improve recreational fisheries management, yet to date exploration of the influence preference heterogeneity has on spatial patterns of angler effort has received little attention. To address this gap in the literature I developed an agent-based model (ABM) with agent behaviour grounded in a discrete choice experiment (DCE). I applied the agent-based model to the recreational Rainbow Trout fishery in the Omineca Wildlife Management Region, BC, and compared spatial patterns of angler effort and related fishing mortality for four models with varying specifications of preference heterogeneity. My results suggested that accounting for greater preference heterogeneity leads to a concentration of modelled angler effort on a preferred subset of lakes, both for the population and for sub-groups of anglers. Further, my results indicate that changes fishing mortality were not correlated with greater preference heterogeneity, but varied as a result of the changing composition of anglers at each lake site. The modelling approach developed could be used to inform management efforts in the Omineca region, providing insight into the composition and spatial distribution of anglers, in turn furthering efforts to develop group specific fishing experiences.
Author: Tony J. Pitcher
Publisher: John Wiley & Sons
ISBN: 0470995394
Category : Technology & Engineering
Languages : en
Pages : 290
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Book Description
Recreational or sport fishing is important for three major reasons: economic (it is a multi-billion dollar world industry); social (it is embedded in the cultures of many nations; ecological (it affects the environment and food webs in many ways). Recreational Fisheries covers a range of methods, case studies and perspectives on the multidisciplinary evaluation of the benefits and costs of sports fisheries. Tony Pitcher and Charles Hollingworth, the editors of this landmark publication, have drawn together chapters from more than 30 contributors from North America, Europe, Australia and South Africa, providing a truly international perspective on a global industry. Contents include detailed assessments, evaluations and survey mthods of sport fisheries in many countries. This book is an essential reference for anyone active in the management, assessment, policy making or development of sport and recreational fisheries worldwide. All fisheries scientists and managers will require a copy of this important publication. Environmental and aquatic scientists, ecologists and oceanographers will also find this book of great value in their work. Libraries in research establishments, laboratories and universities where fisheries and biological sciences are studied and taught should have multiple copies of this book. Covers a worldwide industry of great commercial importance. Internationally known editors and contributors from four continents. Uses case studies from around the globe to illustrate the subject. A core subject essential to fisheries scientists.
Author: Dustin R. Martin
Publisher:
ISBN: 9781303603945
Category : Fishery management
Languages : en
Pages : 0
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Book Description
Buffering inland fisheries against large-scale changes in ecosystem function, climate regimes, and societal valuations of natural resources requires progressive management approaches that incorporate fish and angler dynamics at large spatial and temporal scales. Current paradigms of inland fishery management generally utilize waterbody-specific, fish-centric frameworks designed to regulate fish populations directly, and anglers indirectly, through fish stock enhancement and harvest regulation. In reality, anglers are the most manageable component of a fishery but management of anglers requires explicit consideration of their behavior (e.g., spatial and temporal patterns of participant use), which, unlike fish populations, operates at a scale larger than a single waterbody. Therefore, a first step in creating a resilient and sustainable recreational fishery requires gaining a thorough understanding of angler behavior so that managers can anticipate current and future management needs. In this dissertation, I used three techniques to describe angler behavior in a region (19 reservoirs) during a 4-year period. Anglers make decisions about where to go fishing using a large amount of information. One piece of information available to them is posts to social media websites. I provided a means to evaluate fishing effort on individual-waterbody and regional scales from posts to an online fishing social network; potentially reducing the need for intensive creel surveys. Anglers also make decisions about how far to drive to participate in angling. I used kernel-density estimation to describe the spatial area of influence of reservoirs; differences in area of influence are likely related to access and amenities, fish community, and angler preferences. Finally, network analysis provided a social-ecological perspective to angler behavior and an explicit link between anglers and the reservoirs that they chose to fish. This angler-reservoir interaction is important to understand for angler recruitment and retention and potential changes in the regional fishery due to management actions. In combination, these techniques provide natural resource agencies with the tools needed for fisheries management agencies to ensure resilient and sustainable inland recreational fishing.
Author: Brett Michael Johnson
Publisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 480
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Book Description
Tradicionaly recreational fishery management has focused on dynamics of individual fish populations. Attempts to improve fish populations center on manipulations of harvest or the population itself. However, outcomes of fishery management actions have been difficult to forecast. Ecological processes within fish communities and angler responses can produce unanticipated effects. This thesis documents my research on these processes in Lake Mendota to make fishery management a more holistic, predictive science. A food web manipulation began in 1987. This project used several fishery management tools to increase the biomass of piscivorus gamefish to evaluate food web manipulation as a water quality management tool. Forecasting and measuring direct and indirect effects of the manipulation were important objetives. To forecast how management would affect piscivore populations, and their consumption of prey, I combined two computer models: an age-structured population model and a bioenergetics model. This technique predicted how size, abundance, and consumption of piscivores changed with stocking rates and sire limits. A walleye stocking program that yielded 8,000 yearling/year doubled consumption demand; adding a 381-mm minimum size limit achieved another 50% increase. To predict consequences of piscivore management for prey populations, I studied predador and prey fish populations. Highley variable prey recuitment made forecasting impacts of piscivory difficult. Based on historic recruitment patterns, enhanced walleye populations could consume 65-100% of young-of-year perch biomass produced in low recruitment years. When recruitment was high walleyes consumed less than 5% of the biomass. Translating predicted piscivore consumption into perch dynamics was accomplished by incorporating prey recruitment uncertainty. Angler response to piscivore enhancements was intense. Angler effort increased four-fold and harvest rates doubled to 60% per year. As a result, forescasts of piscivore consumption demand and the effectiveness of food web manipulation dependend heavily on responses of sport anglers to piscivore populations. Hence, a better understanding of angler dynamics was required before ecological effects of fishery management actions could be predicted. I developed a predatory-prey model to study angler-piscivore interactions. This approach linked angler and fish dynamics, and provided the means to incorporate fish, anglers, and management actions within one framework.
Author: Øystein Aas
Publisher: John Wiley & Sons
ISBN: 0470698144
Category : Technology & Engineering
Languages : en
Pages : 376
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Book Description
Recreational or sports fishing is a multi-billion dollar industry worldwide and in many countries represents an important social and cultural activity. In some regions, it also contributes significant income to tourism and tackle businesses. In addition to its importance from a social and economic standpoint, the impact of recreational fishing on the environment and on food webs can often be substantial. This important book represents the major output from the 4th World Recreational Fishing Conference held in Norway in June 2005. The conference focused on several topics and targeted all stakeholders in the recreational fishing sector, including researchers, managers, NGO representatives and businesses. This book reflects that diversity, encompassing a variety of approaches within its carefully selected and fully peer-reviewed chapters. Global Challenges in Recreational Fisheries is an essential purchase for fisheries managers, multidisciplinary fisheries scientists, marine and freshwater biologists, ecologists and environmental scientists. The book is highly relevant for graduate university courses in fisheries management and fisheries sciences. Libraries in all universities, government fish and wildlife agencies and research establishments where these subjects are studied and taught will need copies of this important publication.
