ISIS-Fish, a generic and spatially explicit simulation tool for evaluating the impact of management measures on fisheries dynamics

Mahévas, Stéphanie; Pelletier, Dominique

doi:10.1016/j.ecolmodel.2003.04.001

Cited by 75 publications

(64 citation statements)

References 30 publications

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“…12 ISIS-FISH Mahevas & Pelletier, 2004;Pelletier et al, 2009;Drouineau, Mahévas, Pelletier, & Beliaeff, 2006;Drouineau, Mahévas, Bertignac, & Duplisea, 2010;Duplisea, 2010;Lehuta, Mahévas, Petitgas, & Pelletier, 2010;Rocklin, Pelletier, Mouillot, Tomasini, & Culioli, 2010;Lehuta, Mahévas, & Le Floc'h, 2013;Lehuta, Petitgas, et al, 2013;Lehuta, Holland, & Pershing, 2014;Lehuta, Vermard, & Marchal, 2015;Rochet & Rice, 2010;Marchal, Little, & Thebaud, 2011;Marchal, De Oliveira, Lorance, Baulier, & Pawlowski, 2013;Hussein et al, 2011a,b;Vermard et al, 2012;Gasche, Mahevas, & Marchal, 2013;Reecht et al, 2015. 13 BALTIC FLR-SMS Bastardie et al, 2009;Bastardie, Nielsen, & Kraus, 2010;Bastardie, Vinther, Nielsen, Ulrich, & Storr-Paulsen, 2010;Bastardie, Vinther, & Nielsen, 2012;Bastardie, Nielsen, & Vinther, 2015;Nielsen et al, 2011;Feekings et al, (submitted). Macher, Guyader, Talidec, & Bertignac, 2008;Macher et al, 2013;Merzéréaud, Biais, Lissardy, Bertignac, & Biseau, 2013;Merzéréaud et al, 2011;Simmonds et al, 2011;Raveau et al, 2012;Guillén et al, 2013;Guillén, Macher, Merzéréaud, Fifas, & Guyader, 2014;Guillén, Macher, Merzéréaud, Boncoeur, & Guyader, 2015;EU STECF, 2015a…”

Section: Stoch Hcr (Itq Wealth)mentioning

confidence: 99%

Integrated ecological–economic fisheries models—Evaluation, review and challenges for implementation

et al. 2017

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Marine ecosystems evolve under many interconnected and area-specific pressures. To fulfil society's intensifying and diversifying needs while ensuring ecologically sustainable development, more effective marine spatial planning and broader-scope management of marine resources is necessary. Integrated ecological-economic fisheries models (IEEFMs) of marine systems are needed to evaluate impacts and sustainability of potential management actions and understand, and anticipate ecological, economic and social dynamics at a range of scales from local to national and regional. To make these models most effective, it is important to determine how model characteristics and methods of communicating results influence the model implementation, the nature of the advice that can be provided and the impact on decisions taken by managers. This article presents a global review and comparative evaluation of 35 IEEFMs applied to marine fisheries and marine ecosystem resources to identify the characteristics that determine their usefulness, effectiveness and implementation. The focus is on fully integrated models that allow for feedbacks between ecological and human processes although not all the models reviewed achieve that. Modellers must invest more time to make models user friendly and to participate in management fora where models and model results can be explained and discussed. Such involvement is beneficial to all parties, leading to improvement of models and more effective implementation of advice, but demands substantial resources which must be built into the governance process. It takes time to develop effective processes for using IEEFMs requiring a long-term commitment to integrating multidisciplinary modelling advice into management decision-making. K E Y W O R D Sbio-economic models, comparative model evaluation, fisheries management advice, integrated ecological-economic fisheries models, marine spatial planning and cross-sector management, performance criteria and scales and risks, use and acceptance and implementation and communication and flexibility and complexity | INTRODUCTIONThere is a growing need for tools to evaluate policies and assess tradeoffs in management of marine resources and provision of ecosystem services such as fishing, aquaculture, renewable energy, shipping, conservation and recreation (Cormier, Kannen, Elliott, & Hall, 2015;Degnbol & Wilson, 2008;EU 2014;Langlois, Fréon, Steyer, Delgenés, & Hélias, 2014;White et al., 2012). It is necessary to elaborate and apply common principles and broader, interdisciplinary management evaluation in the use of marine space involving several types of activities and sectors Soma et al., 2013;Stelzenmüller et al., 2013;Sundblad et al., 2014). Policymakers need to know the costs and benefits of conserving ecosystem goods and services to manage them sustainably. Moreover, according to an ecosystembased approach to management, specific pressures, associated uncertainties and risks need to be taken into account (Douvere, 2008;Ehler & Douvere, 2009;Gi...

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Section: Stoch Hcr (Itq Wealth)mentioning

confidence: 99%

Integrated ecological–economic fisheries models—Evaluation, review and challenges for implementation

et al. 2017

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“…In order to implement such an approach, it is necessary to understand how extraction of one resource (a top-down pressure at a specific trophic level) affects other species. Predicting such indirect effects requires ecosystem models, such as 'Ecopath with Ecosim' (Christensen & Walters 2004) or 'ISIS-Fish' (Mahévas & Pelletier 2004), which allow users to specify trophic relationships among species in detail. As in all modelling exercises, the reliability of the predictions is dependent on the quality of input data and the robustness of the assumptions made in setting up the model.…”

Section: Implications For Fisheries Managementmentioning

confidence: 99%

Regional variation in the role of bottom-up and top-down processes in controlling sandeel abundance in the North Sea

Frederiksen¹,

Furness²,

Wanless³

2007

Mar. Ecol. Prog. Ser.

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The lesser sandeel Ammodytes marinus is a critically important mid-trophic species in the North Sea ecosystem. Seabirds suffered widespread breeding failures in the North Sea in 2004, due to shortages of sandeels, their principal food. Industrial sandeel fisheries also failed in 2003 to 2005. Explaining why sandeels were in short supply is thus critical to understanding and managing the North Sea ecosystem. Sandeel abundance may be controlled 'bottom-up' by food availability or 'top-down' by predation, including fisheries. The relative importance of these 2 mechanisms may vary over space and time, and failure to take account of such variation may lead to inappropriate management. We summarise the available evidence for top-down or bottom-up control of sandeel abundance in 2 well-studied North Sea regions differing in many biotic and abiotic characteristics. In Shetland, recent low abundance of sandeels coincided with record-high abundance of herring, which may have exerted a top-down predation pressure on sandeels. Off SE Scotland, where adult herrings are scarce, abundance of sandeel larvae was positively correlated with plankton abundance, indicating bottom-up control. Seabird breeding failures in this area in 2004 were linked to extremely low energy content of sandeels. Large-scale sandeel fisheries have not been operating in either area since 2000. Control of food web structure and function in the North Sea is thus likely to be complex, with pronounced regional variation. Improved cooperation between diverse research organisations will be needed to understand this complexity, and future ecosystem-based management of marine bioresources will need to take the results of such research into account.KEY WORDS: Ecosystem function · Herring · Marine food webs · Resource management · Sandeel · Trophic structure Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 337: [279][280][281][282][283][284][285][286] 2007 Default.htm). Recently, there has been strong interest in when and where each of these mechanisms is more important , Worm & Myers 2003, Munch et al. 2005, Scheffer et al. 2005, Ware & Thomson 2005, Halpern et al. 2006. The dominant type of regulation in a specific ecosystem clearly has major implications for resource management and for inferring causes of observed changes in ecosystem components (Cury & Shannon 2004, Hunt & McKinnell 2006.The North Sea is one of the most heavily fished regional seas in the world, and fisheries have undoubtedly had major impacts on ecosystem structure and function over several centuries. In heavily fished systems, trophic structure is simplified and food webs are shortened, probably leading to decreased resilience to environmental perturbations (Pauly & Maclean 2003). Consistent with this hypothesis, rapid climate-driven changes have become apparent in recent years at all trophic levels in the North Sea (Edwards et al. 2002, Beaugrand 2004, Edwards & Richardson 2004, Perry et al. 2005, including top predators such as s...

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“…The bio-economic model used in this study is based on version 3.1.3 of ISIS-Fish Pelletier 2004, Pelletier andMahévas 2005). ISIS-Fish is a generic, spatially and seasonally explicit simulation tool for evaluating the impact of management measures on fisheries dynamics.…”

Section: Base Fishery Modelmentioning

confidence: 99%

Catch-quota balancing in mixed-fisheries: a bio-economic modelling approach applied to the New Zealand hoki (Macruronus novaezelandiae) fishery

Marchal

Francis

Lallemand³

et al. 2009

Aquat. Living Resour.

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-Managing adequately the exploitation of commercial species subject to technical interactions is a key step towards the ecosystem approach to fisheries. We evaluate here, using a bio-economic modelling approach building on the ISIS-Fish simulation platform, the relative impact of total allowable commercial catches (TACC) and of taxes applicable to over-quota landings (deemed value) on the sustainability of a selection of species exploited by the New Zealand hoki (Macruronus novaezelandiae) fishery. We investigate some aspects of the hoki mixed fisheries, consisting of four fleets and nineteen métiers, by considering the technical interactions between hoki and Southern hake (Merluccius australis). The dynamics of effort allocation were modelled using gravity model, using value per unit of effort (VPUE) as attractivity coefficient. Several management scenarios, based on different levels of TACC, effort limits and deemed value have been defined. The impact of these strategies on spawning biomass and catches has been investigated. The results confirm that the deemed value may, in combination with TACC, be an efficient management tool. By increasing the hoki deemed value, we could somehow limit the decrease in the hoki TACC needed to harvest Western hoki sustainably. Constraining hoki fishing also restricts Southern hake fishing in the Chatham Rise and in the West Coast South Island, but leads to increased targeting of this species in the Sub-Antarctic area. The relative costs of renting/buying quota or paying the deemed value are most constraining when the hoki TACC is at relatively low level and when the hoki deemed value is more than 1.5 times the current value.Key words: Fleet dynamics / New Zealand hoki fishery / Deemed value / Fisheries management Résumé -La gestion adéquate de l'exploitation d'espèces commerciales sujettes à des interactions techniques constitue un premier pas dans la direction de l'approche écosystémique des pêches. Nous évaluons ici, au moyen d'une approche de modélisation bio-économique s'appuyant sur la plate-forme de simulation ISIS-Fish, l'impact relatif du total admissible de captures commerciales (TACC) et de taxes appliquées aux débarquements « hors quota » (taxes sur leur valeur estimée), sur la conservation d'une sélection d'espèces exploitées par la pêcherie de hoki (Macruronus novaezelandiae) néo-zélandaise. Nous étudions certains aspects de la pêcherie mixte de hoki, représentée par quatre flottilles et dix-neuf métiers, en considérant les interactions techniques entre le hoki et le merlu austral (Merluccius australis). La dynamique de l'allocation de l'effort de pêche a été modélisée en utilisant un modèle de gravité, dans lequel la valeur par unité d'effort (VPUE) représente le coefficient d'attractivité. On a défini plusieurs scénarios de gestion, basés sur différents niveaux de TACC, de limitation d'effort de pêche et de la taxe. L'impact de ces stratégies sur la biomasse féconde et les captures a été étudié. Les résultats confirment que la taxe, combinée avec les TA...

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ISIS-Fish, a generic and spatially explicit simulation tool for evaluating the impact of management measures on fisheries dynamics

Abstract: to evaluate the impact of management measures on FISHeries.

Cited by 75 publications

References 30 publications

Integrated ecological–economic fisheries models—Evaluation, review and challenges for implementation

Integrated ecological–economic fisheries models—Evaluation, review and challenges for implementation

Regional variation in the role of bottom-up and top-down processes in controlling sandeel abundance in the North Sea

Catch-quota balancing in mixed-fisheries: a bio-economic modelling approach applied to the New Zealand hoki (Macruronus novaezelandiae) fishery

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