Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    We will mail you new results for this query: keywords==MSY
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Moving beyond the MSY concept to reflect multidimensional fisheries management objectives
Rindorf, Anna ; Mumford, John ; Baranowski, Paul ; Clausen, Lotte Worsøe ; García, Dorleta ; Hintzen, Niels T. ; Kempf, Alexander ; Leach, Adrian ; Levontin, Polina ; Mace, Pamela ; Mackinson, Steven ; Maravelias, Christos ; Prellezo, Raúl ; Quetglas, Antoni ; Tserpes, George ; Voss, Rüdiger ; Reid, David G. - \ 2017
Marine Policy 85 (2017). - ISSN 0308-597X - p. 33 - 41.
Inclusive governance - Management objectives - MEY - MSOY - MSY - Sustainability pillars
Maximising the long term average catch of single stock fisheries as prescribed by the globally-legislated MSY objective is unlikely to ensure ecosystem, economic, social and governance sustainability unless an effort is made to explicitly include these considerations. We investigated how objectives to be maximised can be combined with sustainability constraints aiming specifically at one or more of these four sustainability pillars. The study was conducted as a three-year interactive process involving 290 participating science, industry, NGO and management representatives from six different European regions. Economic considerations and inclusive governance were generally preferred as the key objectives to be maximised in complex fisheries, recognising that ecosystem, social and governance constraints are also key aspects of sustainability in all regions. Relative preferences differed between regions and cases but were similar across a series of workshops, different levels of information provided and the form of elicitation methods used as long as major shifts in context or stakeholder composition did not occur. Maximising inclusiveness in governance, particularly the inclusiveness of affected stakeholders, was highly preferred by participants across the project. This suggests that advice incorporating flexibility in the interpretation of objectives to leave room for meaningful inclusiveness in decision-making processes is likely to be a prerequisite for stakeholder buy-in to management decisions.
The MSY concept in a multi-objective fisheries environment - Lessons from the North Sea
Kempf, Alexander ; Mumford, John ; Levontin, Polina ; Leach, Adrian ; Hoff, Ayoe ; Hamon, Katell G. ; Bartelings, Heleen ; Vinther, Morten ; Stäbler, Moritz ; Poos, Jan Jaap ; Smout, Sophie ; Frost, Hans ; Burg, Sander van den; Ulrich, Clara ; Rindorf, Anna - \ 2016
Marine Policy 69 (2016). - ISSN 0308-597X - p. 146 - 158.
Bio-economic - MEY - Mixed fisheries - MSY - Multi species - North Sea

One of the most important goals in current fisheries management is to maintain or restore stocks above levels that can produce the maximum sustainable yield (MSY). However, it may not be feasible to achieve MSY simultaneously for multiple species because of trade-offs that result from interactions between species, mixed fisheries and the multiple objectives of stakeholders. The premise in this study is that MSY is a concept that needs adaptation, not wholesale replacement. The approach chosen to identify trade-offs and stakeholder preferences involved a process of consulting and discussing options with stakeholders as well as scenario modelling with bio-economic and multi-species models. It is difficult to intuitively anticipate the consequences of complex trade-offs and it is also complicated to address them from a political point of view. However, scenario modelling showed that the current approach of treating each stock separately and ignoring trade-offs may result in unacceptable ecosystem, economic or social effects in North Sea fisheries. Setting FMSY as a management target without any flexibility for compromises may lead to disappointment for some of the stakeholders. To treat FMSY no longer as a point estimate but rather as a "Pretty Good Yield" within sustainable ranges was seen as a promising way forward to avoid unacceptable outcomes when trying to fish all stocks simultaneously at FMSY. This study gives insights on how inclusive governance can help to reach consensus in difficult political processes, and how science can be used to make informed decisions inside a multi-dimensional trade-off space.

Combining efforts to make maximum sustainable yields and good environmental status match in a food-web model of the Southern North Sea
Staebler, Mortiz ; Kempf, Alexander ; Mackinson, S. ; Poos, J.J. ; Garcia, Clement ; Temming, A. - \ 2016
Ecological Modelling 331 (2016). - ISSN 0304-3800 - p. 17 - 30.
Multispecies - Mixed fisheries - MSY - GES - ecosystem model - Ecopath with Ecosim
The southern North Sea is the stage of conflicting objectives of beam trawlers targeting flatfish; of shrimp trawlers fishing for brown shrimp with bycatch of juvenile flatfish; and of demersal trawlers, the main fishery on cod, a key predator of shrimp and other groups. To expose trade-offs between the fleets’ objectives and to explore what a possible variant of a multispecies maximum sustainable yield (MSY) could look like, we parameterized an ecosystem model and subjected it to a range of different fishing effort levels of the three fleets. Long-term projections highlighted multiple fishing regimes that lead to catches of at least 30% of all focal stocks' single species MSYs at the same time. Trade-offs between the yields of shrimp fishers and demersal trawlers made higher simultaneous yields impossible. Besides optimizing multispecies catches, we identified effort regimes that satisfied a set of descriptors of good environmental status (GES). We found that GES can only be obtained through low efforts of beam and demersal trawlers, which cannot be aligned with our multispecies MSY variant without accepting trade-offs in fishing yields and/or conservation goals.
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