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Registros recuperados: 18
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A bio-economic evaluation of the potential for establishing a commercial fishery on two newly developed stocks: The Ionian red shrimp fishery ArchiMer
Guillen Garcia, Jordi; Maynou, Francesc; Floros, Christos; Sampson, David; Conides, Alexis; Kapiris, Kostas.
It has recently been shown that two deep-water red shrimp species (Aristeus antennatus and Aristaeomorpha foliacea) have the potential to support a viable fishery in the Greek Ionian Sea (eastern Mediterranean). In this article, we investigate (i) the evolution that this newly developed trawl shrimp fishery may undergo when subjected to different management measures, and (ii) the most suitable extraction rates considering the uncertainties about the resource. We further analyse the effects that potential future fuel price increases and changes in the market may have on the fishery. Forecasting the biological and economic consequences of management actions, as well as the effects of market changes on inputs and outputs before they are applied, may help...
Tipo: Text Palavras-chave: Bio-economic modelling; Market development; Fuel price; Newly developed stocks; Ionian Sea; Red shrimps.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00099/20995/19800.pdf
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A farm level assessment of a novel drought tolerant forage:Tedera (Bituminaria bituminosa C.H.Stirt var. albomarginata). AgEcon
Finlayson, John D.; Real, Daniel; Nordblom, Thomas L.; Revell, Clinton; Ewing, Michael A.; Kingwell, Ross S..
Tedera (Bituminaria bituminosa C.H.Stirt var. albomarginata) is a drought tolerant perennial legume originating in the Canary Islands. This study evaluates the potential role and value of tedera in dryland mixed crop and sheep production systems in southern Australia. Regional variants of the bio-economic model MIDAS are used to assess tedera in farming systems at two locations. The analysis considers the quantity and quality of feed produced by tedera, the ability of other forages to complement or substitute for tedera and its impact on meat versus wool-producing sheep flocks. The results indicate that tedera offers the potential to increase farm profits by up to 26% and be grown on ~28% of a low rainfall mixed enterprise farm. On a high rainfall mixed...
Tipo: Presentation Palavras-chave: Tedera; Drought tolerant; Forage; Legume; Mediterranean-type climate; Autumn feed gap; Bio-economic modelling; Whole farm modelling; Technology evaluation; MIDAS; Model of dryland agricultural system.; Crop Production/Industries.
Ano: 2012 URL: http://purl.umn.edu/124297
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An economic approach to collective management of endemic animal diseases AgEcon
Rat-Aspert, Olivier; Krebs, Stephane.
The control of animal diseases is an issue of particular interest in animal production chains. Because of their direct impact on production, animal diseases generate income shortfalls for farmers. In some cases, diseases may also have lead to human health problems and undermine market access conditions. Because of these potential negative impacts, some diseases are regulated. But for many communicable diseases, much latitude is given to individual control of the disease by farmers. In the case of a communicable disease, individual management therefore generates an externality, as individual decisions have an impact on the level of risk exposure of other farms to the disease. Thus, the collective result of individual management may differ from the...
Tipo: Conference Paper or Presentation Palavras-chave: Animal health economics - Micro modelling – Bio-economic modelling - endemic animal diseases; Animal health economics; Micro modelling; Bio-economic modelling; Endemic animal diseases; Livestock Production/Industries.
Ano: 2011 URL: http://purl.umn.edu/114791
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An Integrated Assessment approach to linking biophysical modelling and economic valuation tools AgEcon
Kragt, Marit Ellen; Bennett, Jeffrey W.; Jakeman, Tony.
Natural resource management (NRM) typically involves complex decisions that affect a variety of stakeholder values. Efficient NRM, which achieves the greatest net environmental, social and financial benefits, needs to integrate the assessment of environmental impacts with the costs and benefits of investment. Integrated assessment (IA) is one approach that incorporates the several dimensions of catchment NRM, by considering multiple issues and knowledge from various disciplines and stakeholders. Despite the need for IA, there are few studies that integrate biophysical modelling tools with economic valuation. In this paper, we demonstrate how economic non-market valuation tools can be used to support an IA of catchment NRM changes. We develop a Bayesian...
Tipo: Report Palavras-chave: Bayesian networks; Bio-economic modelling; Catchment management; Cost-benefit analysis; Environmental values; Integrated assessment and modelling; Non-market valuation; Riparian vegetation; Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/94949
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Bio-economic management strategy evaluation of deepwater stocks using the FLBEIA model ArchiMer
Garcia, Dorleta; Urtizberea, Agurtzane; Diez, Guzman; Gil, Juan; Marchal, Paul.
Deepwater fish are characterized by long lifespans, late maturity and low productivity. This implies slow recovery from low biomass levels and it is, therefore, important to manage these stocks correctly to avoid overfishing. However, these stocks are generally data poor, which it makes difficult to apply quantitative assessment models on which to base their management. The management strategy evaluation (MSE) approach consists in evaluating the performance of management strategies by simulation before their implementation. In the evaluation, the main sources of uncertainty in a fishery system and its management process should be taken into account in order to find robust management strategies. Thus, the MSE approach is relevant to the management of...
Tipo: Text Palavras-chave: Bio-economic modelling; Deep-sea fisheries; Harvest control rules; Management strategy evaluation; Norway; Bay of Biscay; Gibraltar; Atlantic Ocean.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00176/28760/27231.pdf
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Easy winnings? The economics of carbon sequestration in agricultural soils AgEcon
Kragt, Marit Ellen; Pannell, David J.; Robertson, Michael J..
Paper removed temporarily by authors 11/28/11.
Tipo: Conference Paper or Presentation Palavras-chave: Agriculture; Bio-economic modelling; Greenhouse gases; Soil carbon; Agribusiness.
Ano: 2011 URL: http://purl.umn.edu/100575
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Evaluating Agri-Environmental Schemes – The Marginal Costs of Ecosystem Services AgEcon
Sauer, Johannes; Wossink, Ada.
We provide a new approach for assessing the cost of marginal ecosystem changes and the effectiveness of agri-environmental schemes. The approach is based on a theoretical and empirical analysis of the bio-economic production interactions between marketed outputs and non-marketed ecosystem services at the micro level. To frame the economic nature of the problem, we employ a generalized joint production model in combination with cost minimization. The generalized joint production framework allows for the consideration of complementary, substitutive and competitive relationships between agricultural production and non-marketed ecosystem services generation and avoids double counting. From this theoretical model we distinguish three theoretical cases depending...
Tipo: Conference Paper or Presentation Palavras-chave: Agri-environmental services; Bio-economic modelling; Economies of scale and scope; Agricultural and Food Policy; Environmental Economics and Policy; Q18; Q57; Q58..
Ano: 2011 URL: http://purl.umn.edu/99425
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Farm and catchment scale effects of managing dry-land salinity with pastoral and woody perennials AgEcon
Finlayson, John D.; Bathgate, Andrew D.; Hoque, Ziaul; Nordblom, Thomas L.; Theiveyanathan, Tivi; Crosbie, Russell; Mitchell, David.
Dry land salinisation is a significant cause of land and water degradation in Australia. Changing land use from annual to perennial crops has been widely proposed as a means to reduce land degradation and increase the productivity of saline land. However, in many areas annual crops are financially more attractive than perennial crops. Increases in perennial crops might also reduce local stream flows with adverse effects on in-stream values. As such salinity control is likely to involve significant tradeoffs between public and private costs and benefits. This paper considers the impact of planting differing areas of pastoral and woody perennials on farm profitability (P), and water (W) and salt (S) exports from the Little River catchment in New South Wales...
Tipo: Conference Paper or Presentation Palavras-chave: Bio-economic modelling; Linear programming; Farm systems; Catchments; Dryland salinity; Land Economics/Use.
Ano: 2007 URL: http://purl.umn.edu/10409
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Integration of biological, economic and sociological knowledge by Bayesian belief networks: the interdisciplinary evaluation of potential Baltic salmon management plan AgEcon
Levontin, Polina; Kulmala, Soile; Haapasaari, Paivi; Kuikka, Sakari.
There is a growing need to evaluate fisheries management plans in a comprehensive interdisciplinary context involving stakeholders. In this paper we demonstrate a probabilistic management model to evaluate potential management plans for Baltic salmon fisheries. The analysis is based on several studies carried out by scientists from respective disciplines. The main part consisted of biological and ecological stock assessment with integrated economic analysis of the commercial fisheries. Recreational fisheries were evaluated separately. Finally, a sociological study was conducted aimed at understanding stakeholder perspectives and potential commitment to alternative management plans. In order to synthesize the findings from these disparate studies a Bayesian...
Tipo: Conference Paper or Presentation Palavras-chave: Baltic salmon; Bio-economic modelling; Bayesian Belief Network; Expert knowledge; Fisheries management; Commitment and implementation uncertainty; Management plan; Recreational fisheries; Stakeholders.; Resource /Energy Economics and Policy.
Ano: 2010 URL: http://purl.umn.edu/59093
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INVESTIGATING THE ECONOMIC AND WATER QUALITY EFFECTS OF THE 2003 CAP REFORM ON ARABLE CROPPING SYSTEMS: A SCOTTISH CASE STUDY AgEcon
Mouratiadou, Ioanna; Russell, Graham; Topp, Cairistiona; Louhichi, Kamel.
The 2003 Common Agricultural Policy Reform aimed to promote the socio-economic and environmental sustainability of agricultural systems. An important question is how far the Reform has indeed encouraged farmers to contribute to achieving broad economic and environmental goals. The economic and water resource effects of the Reform have been explored for the case study area of the Lunan catchment, which is typical of Scottish arable cropping areas. Land use data analysis, bio-physical modelling and bio-economic modelling were used in combination to identify the effects of a range of scenarios. The results indicate only small changes in the cropping pattern and associated economic and water quality indicators as a result of the Reform, with the main changes...
Tipo: Conference Paper or Presentation Palavras-chave: Common Agricultural Policy; Bio-economic modelling; Water; Land use; Scotland.; Agricultural and Food Policy; Research Methods/ Statistical Methods; Q10; Q18; Q25..
Ano: 2008 URL: http://purl.umn.edu/44797
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MARKETED OUTPUTS AND NON-MARKETED ECOSYSTEMS SERVICES AgEcon
Sauer, Johannes; Wossink, Ada.
We provide a new approach for assessing the cost of marginal ecosystem changes and the effectiveness of green payment schemes. The approach is based on a theoretical and empirical analysis of the bio-economic production interactions between marketed outputs and non-marketed ecosystem services at the micro level. To frame the economic nature of the problem, we employ a generalized joint production model in combination with cost minimization. The generalized joint production framework allows for the consideration of complementary, substitutive and competitive relationships between agricultural production and non-marketed ecosystem services generation and avoids double counting. From this theoretical model we distinguish three theoretical cases depending on...
Tipo: Conference Paper or Presentation Palavras-chave: Ecosystem services; Green payments; Bio-economic modelling; Economies of scale and scope; Program evaluation.; Environmental Economics and Policy; Q18; Q57; Q58..
Ano: 2010 URL: http://purl.umn.edu/91807
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Marketed Outputs and Non-Marketed Outputs: The Marginal Costs of Producing Ecosystem Services AgEcon
Wossink, Ada; Sauer, Johannes.
We provide a new approach for assessing the cost of marginal ecosystem changes and the effectiveness of green payment schemes. The approach is based on a theoretical and empirical analysis of the bio-economic production interactions between marketed outputs and non-marketed ecosystem services at the micro level. To frame the economic nature of the problem, we employ a generalized joint production model in combination with cost minimization. The generalized joint production framework allows for the consideration of complementary, supplementary and competitive relationships between agricultural production and non-marketed ecosystem services generation and avoids double counting. From this theoretical model we distinguish three theoretical cases depending on...
Tipo: Conference Paper or Presentation Palavras-chave: Ecosystem services; Green payments; Bio-economic modelling; Economies of scale and scope; Program evaluation.; Environmental Economics and Policy; Land Economics/Use; Q18; Q57; Q58..
Ano: 2010 URL: http://purl.umn.edu/60804
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Modelling institutional arrangements and bio-economic impacts of catch share management systems. Application to the Bay of Biscay sole fishery ArchiMer
Bellanger, Manuel.
In France, where fishing rights are non-transferable, the management of fishing quotas is essentially delegated to producer organizations (POs). POs are granted collective allocations based on the aggregate fishing rights of their members and are then responsible for managing their fishing opportunities. The goal of this research, which contains theoretical developments as well as empirical analyses applied to the Bay of Biscay sole fishery, is to determine how outcomes of fisheries management are altered by the presence of POs within institutions as compared to alternative governance systems such as individual transferable quotas (ITQs). This dissertation notably brings together bio-economic approaches and institutional analyses to better anticipate the...
Tipo: Text Palavras-chave: Gestion durable des quotas de pêche; Organisations de producteurs; Cogestion; Arrangements institutionnels; Respect des réglementations; Effets redistributifs; Modèle bio-économique; Modèle microéconomique de comportement des pêcheurs; Sustainable management of catch shares; Producer organizations; Co-management; Institutional arrangements; Regulatory compliance; Distributional effects; Bio-economic modelling; Microeconomic model of fishermen behavior.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00392/50357/51058.pdf
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Of sets of offsets: Cumulative impacts and strategies for compensatory restoration ArchiMer
Thebaud, Olivier; Boschetti, Fabio; Jennings, Sarah; Smith, Anthony D.m.; Pascoe, Sean.
Biodiversity offsets are increasingly advocated as a flexible approach to managing the ecological costs of economic development. Arguably, however, this remains an area where policy-making has run ahead of science. A growing number of studies identify limitations of offsets in achieving ecologically sustainable outcomes, pointing to ethical and implementation issues that may undermine their effectiveness. We develop a novel system dynamic modelling framework to analyze the no net loss objective of development and biodiversity offsets. The modelling framework considers a marine-based example, where resource abundance depends on a habitat that is affected by a sequence of development projects, and biodiversity offsets are understood as habitat restoration...
Tipo: Text Palavras-chave: Biodiversity offsets; Compensatory restoration; Cumulative impacts; Habitat-resource interactions; Bio-economic modelling; Social acceptability.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00270/38156/36312.pdf
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Providing Integrated Total Catch Advice for the Management of Mixed Fisheries with an Eco-viability Approach ArchiMer
Briton, Florence; Macher, Claire; Merzereaud, Mathieu; Legrand, Christelle; Fifas, Spyros; Thebaud, Olivier.
Well-established single-species approaches are not adapted to the management of mixed fisheries where multiple species are simultaneously caught in unselective fishing operations. In particular, ignoring joint production when setting total allowable catches (TACs) for individual species is likely to lead to over-quota discards or, when discards are not allowed, to lost fishing opportunities. Furthermore, economic and social objectives have been poorly addressed in the design of fisheries harvest strategies, despite being an explicit objective of ecosystem-based fisheries management in many jurisdictions worldwide. We introduce the notion of operating space as the ensemble of reachable, single-species fishing mortality targets, given joint production in a...
Tipo: Text Palavras-chave: Eco-viability; Mixed fisheries management; Bio-economic modelling; Integrated TAC advice.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00624/73614/73030.pdf
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Risk versus economic performance in a mixed fishery ArchiMer
Gourguet, Sophie; Thebaud, Olivier; Dichmont, C.; Jennings, S.; Little, L. R.; Pascoe, S.; Deng, R. A.; Doyen, L..
Balancing bio-economic risks and high profit expectations is often a major concern in fisheries management. We examine this trade-off in the context of the Australian Northern Prawn Fishery (NPF). The fishery derives its revenue from different prawn species with different dynamics and recruitment processes. A multi-species bio-economic and stochastic model is used to examine the trade-offs between mean profitability of the fishery and its variance, under a range of economic scenarios, fishing capacities and distributions of fishing effort across the various sub-fisheries that comprise the NPF. Simulation results show that the current fishing strategy diversifying catch across sub-components of the fishery entails a compromise between expected performance...
Tipo: Text Palavras-chave: Bio-economic modelling; Uncertainty; Risk-performance trade-offs; Fishing strategy; Northern Prawn Fishery.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00216/32775/31320.pdf
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THE MARGINAL COST OF AGRI-ENVIRONMENTAL SERVICES AgEcon
Sauer, Johannes; Wossink, Ada.
A3_2
Tipo: Conference Paper or Presentation Palavras-chave: Agri-environmental services; Bio-economic modelling; Economies of scale and scope; Environmental Economics and Policy; Land Economics/Use; Research Methods/ Statistical Methods; Q18; Q57; Q58.
Ano: 2010 URL: http://purl.umn.edu/93939
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The role of technical protocols and partnership engagement in developing a decision support framework for fisheries management ArchiMer
Macher, Claire; Bertignac, Michel; Guyader, Olivier; Frangoudes, Katia; Fresard, Marjolaine; Le Grand, Christelle; Merzereaud, Mathieu; Thebaud, Olivier.
In the context of the Common Fisheries Policy Reform, the implementation of multiannual management plans for fisheries and the annual quota negotiations between EU member states has generated a growing demand from stakeholders and managers for integrated advice that goes beyond the usual biological advice. This has led to the emergence of bio-economic tools and methods for the comparison of the biological, economic and social tradeoffs associated with alternative options for fisheries management. A Decision Support Framework (DSF) has been developed in this context, with the objective to tackle technical and methodological challenges to be able to provide bio-economic advices to support decision at national and European level. It is based on a partnership...
Tipo: Text Palavras-chave: Participatory approach; Stakeholder engagement; Decision-support; Bio-economic modelling; Fisheries management; Impact assessment.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00445/55698/57395.pdf
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