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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Offshore Wind Farms as Potential Locations for Flat Oyster (Ostrea edulis) Restoration in the Dutch North Sea
Kamermans, Pauline ; Walles, Brenda ; Kraan, Marloes ; Duren, Luca van; Kleissen, Frank ; Have, Tom van der; Smaal, Aad ; Poelman, Marnix - \ 2018
Sustainability 10 (2018)11. - ISSN 2071-1050
Ostrea edulis - native oyster restoration - North Sea - site selection - pilot study - offshore wind farms
The “Dutch Energy Agreement” motivates governments and industries to invest in renewable energy sources, of which offshore wind energy is one of the solutions to meet the agreed target of 16% of the total energy budget from renewable resources by 2023. An option for the multi-use of wind farms is nature-inclusive building, in which the design and construction of wind farms make use of the potential for co-design with oyster bed restoration. This can support the government’s ambitions, for the Dutch North Sea, to achieve biodiversity goals, restore ecosystem functions, and enhance ecosystem services, including future seafood production. For the recovery of flat oyster (Ostrea edulis) beds, knowledge is required about the conditions under which active restoration of this species in the North Sea can be successfully implemented. This paper gives a framework and presents results to determine suitability of wind farms for flat oyster restoration, and provides recommendations for pilot studies. Our analysis showed that a number of wind farms in the Dutch section of the North Sea are suitable locations for development of flat oyster beds. Combining oyster restoration and oyster culture, as a protein source, is a viable option worth investigating.
De Fransen haten hen om hun pulsjes
Kraan, Marloes - \ 2018
Q&A Europese aanlandplicht visserij
Steins, N.A. ; Kraan, M.L. ; Verkempynck, R. ; Molenaar, P. ; Rijnsdorp, A.D. - \ 2018
Yerseke : Wageningen Marine Research - 10 p.
Tussen 2015 en 2019 wordt in het Europese Visserijbeleid gefaseerd een zogenaamde aanlandplicht ingevoerd. Wat houdt die aanlandplicht precies in? Deze vraag en nog 17 andere veelgestelde vragen worden in deze Q&A behandeld.
De bodemberoerende visserij in de Voordelta sinds 2004
Tien, Nicola ; Hintzen, Niels ; Verkempynck, Ruben ; Kraan, Marloes ; Trapman, Brita ; Craeymeersch, Johan ; Asch, Margriet - \ 2017
IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C105/17) - 106
Biorefinery Approach to the Use of Macroalgae as Feedstock for Biofuels
Lopez Contreras, A.M. ; Harmsen, P.F.H. ; Hou, X. ; Huijgen, W. ; Ditchfield, Ariene K. ; Bjornsdottir, Bryndis ; Obata, Oluwatosin O. ; Hreggvidsson, Gudmundur O. ; Hal, Jaap W. van; Bjerre, Anne-Belinda - \ 2017
In: Algal Biofuels / Pereira, Leonel, CRC Press - ISBN 9781498752312 - p. 103 - 139.
Macroalgae (also called seaweeds) have gained attention in recent years as feedstock for the production of fuels and chemicals. This is due to their advantages over traditional terrestrial feedstocks for biorefinery: higher productivity cultivation (amount of biomass produced per unit of surface area) than terrestrial crops, no competition for arable land, lower fresh water consumption during cultivation, and no requirement for fertilizer (van den Burg et al. 2013). In addition, macroalgae have a distinctive chemical composition that differs from lignocelluloses and terrestrial crops, and some 104species are rich in carbohydrates, proteins, fatty acids, and/or bioactive components that make them very suitable for biorefinery (Kraan 2013, van den Burg et al., 2013). For the production of fuels, the most studied routes are the biological conversion of sugars into liquid fuels such as ethanol or butanol, the thermochemical conversion of macroalgae biomass into liquid fuel by hydrothermal liquefaction (HTL), the chemo-catalytic conversion of sugars into furans, and the anaerobic digestion of biomass into methane. Various reviews of the use of macroalgae for biofuels have appeared in recent years, including Chen et al. 2015, Jiang et al. 2016, Milledge et al. 2014, Suutari et al. 2015, Wei et al. 2013. Chen et al. (2015) concluded that biodiesel production from macroalgae seems less attractive than that from microalgae, given the low content of lipids in macroalgae. Therefore, biodiesel from macroalgal lipids was left outside the scope of this chapter.
Towards a better understanding of fisheries behaviour: panel 3.4.22 innovative approaches to fisheries management
Kraan, Marloes - \ 2017
Herziening spieringadvisering
Hammen, T. van der; Winden, J. van der; Kraan, M. ; Tulp, I. - \ 2017
IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C101/17) - 65
Het huidige spieringprotocol voor de openstelling van de visserij op spiering in het IJsselmeer en Markermeer-IJmeer dateert uit 1997 en is herzien in 2007. Het ministerie van LNV heeft aan WMR gevraagd om een advies over de herziening van het huidige afwegingskader (protocol). In 2013 is ook geprobeerd het protocol aan te passen, waarbij is geadviseerd om dit te doen door middel van een ecosysteemmodel (Osmose). Het model bleek niet uitvoerbaar omdat niet alle hiervoor benodigde gegevens en kennis aanwezig was. Om die reden is er nu een meer pragmatische en eenvoudiger aanpak toegepast.
Aberrant intestinal microbiota due to IL-1 receptor antagonist deficiency promotes IL-17- and TLR4-dependent arthritis
Rogier, Rebecca ; Ederveen, Thomas H.A. ; Boekhorst, Jos ; Wopereis, Harm ; Scher, Jose U. ; Manasson, Julia ; Frambach, Sanne J.C.M. ; Knol, Jan ; Garssen, Johan ; Kraan, Peter M. van der; Koenders, Marije I. ; Berg, Wim B. van den; Hijum, Sacha A.F.T. van; Abdollahi-Roodsaz, Shahla - \ 2017
Microbiome 5 (2017)1. - ISSN 2049-2618 - p. 63 - 63.
Autoimmune arthritis - IL-1 receptor antagonist - Microbiota - T helper 17 cells - Toll-like receptors
BACKGROUND: Perturbation of commensal intestinal microbiota has been associated with several autoimmune diseases. Mice deficient in interleukin-1 receptor antagonist (Il1rn -/- mice) spontaneously develop autoimmune arthritis and are susceptible to other autoimmune diseases such as psoriasis, diabetes, and encephalomyelitis; however, the mechanisms of increased susceptibility to these autoimmune phenotypes are poorly understood. We investigated the role of interleukin-1 receptor antagonist (IL-1Ra) in regulation of commensal intestinal microbiota, and assessed the involvement of microbiota subsets and innate and adaptive mucosal immune responses that underlie the development of spontaneous arthritis in Il1rn -/- mice.RESULTS: Using high-throughput 16S rRNA gene sequencing, we show that IL-1Ra critically maintains the diversity and regulates the composition of intestinal microbiota in mice. IL-1Ra deficiency reduced the intestinal microbial diversity and richness, and caused specific taxonomic alterations characterized by overrepresented Helicobacter and underrepresented Ruminococcus and Prevotella. Notably, the aberrant intestinal microbiota in IL1rn -/- mice specifically potentiated IL-17 production by intestinal lamina propria (LP) lymphocytes and skewed the LP T cell balance in favor of T helper 17 (Th17) cells, an effect transferable to WT mice by fecal microbiota. Importantly, LP Th17 cell expansion and the development of spontaneous autoimmune arthritis in IL1rn -/- mice were attenuated under germ-free condition. Selective antibiotic treatment revealed that tobramycin-induced alterations of commensal intestinal microbiota, i.e., reduced Helicobacter, Flexispira, Clostridium, and Dehalobacterium, suppressed arthritis in IL1rn -/- mice. The arthritis phenotype in IL1rn -/- mice was previously shown to depend on Toll-like receptor 4 (TLR4). Using the ablation of both IL-1Ra and TLR4, we here show that the aberrations in the IL1rn -/- microbiota are partly TLR4-dependent. We further identify a role for TLR4 activation in the intestinal lamina propria production of IL-17 and cytokines involved in Th17 differentiation preceding the onset of arthritis.CONCLUSIONS: These findings identify a critical role for IL1Ra in maintaining the natural diversity and composition of intestinal microbiota, and suggest a role for TLR4 in mucosal Th17 cell induction associated with the development of autoimmune disease in mice.
Kritische succesfactoren voor het verduurzamen van stadsdistributie
Pauls-Worm, K.G.J. ; Bloemhof-Ruwaard, J.M. ; Guo, X. - \ 2017
In: Bijdragen Vervoerslogistieke werkdagen 2017 / Kraan, M., Weijers, S., Zezate : University Press - ISBN 9789461975768 - p. 279 - 291.
Plan van aanpak risicomonitoring Roggenplaatsuppletie : Monitoring effecten op de nabijgelegen mosselkweekpercelen
Wijsman, J.W.M. ; Kraan, M. - \ 2017
Yerseke : Wageningen Marine Research (Wageningen Marine Research rapport C037.17) - 51
Keeping humans in the ecosystem
Link, Jason S. ; Thébaud, Olivier ; Smith, David C. ; Smith, Anthony D.M. ; Schmidt, Jorn ; Rice, Jake ; Poos, J.J. ; Pita, Cristina ; Lipton, Doug ; Kraan, M.L. ; Frusher, Stewart ; Doyen, Luc ; Cudennec, Annie ; Criddle, Keith ; Bailly, Denis - \ 2017
ICES Journal of Marine Science 74 (2017)7. - ISSN 1054-3139 - p. 1947 - 1956.
ecosystem-based management - governance - indicators - integrated ecosystem assessment - marine socio-ecological systems - modeling - scenario analysis - stakeholder engagement
The World Ocean presents many opportunities, with the blue economy projected to at least double in the next two decades. However, capitalizing on these opportunities presents significant challenges and a multi-sectoral, integrated approach to managing marine socio-ecological systems will be required to achieve the full benefits projected for the blue economy. Integrated ecosystem assessments have been identified as the best means of delivering the information upon which marine resource management decisions can be made. By their nature, these assessments are inter-disciplinary, but to date have mostly focused on the natural sciences. Inclusion of human dimensions into integrated ecosystem assessments has been lagging, but is fundamental. Here we report on a Symposium, and the articles emmanating from it that are included in this Theme Set, that address how to more effectively include human dimensions into integrated ecosystem assessments. We provide an introduction to each of the main symposium topics (governance, scenarios, indicators, participatory processes, and case studies), highlight the works that emerged from the symposium, and identify key areas in which more work is required. There is still a long way to go before we see end-to-end integrated ecosystem assessments inclusive of all the major current and potential ocean use sectors that also encompass multiple aspects of human dimensions. Nonetheless, it is also clear that progress is being made and we are developing tools and approaches, including the human dimension, that can inform management and position us to take advantage of the multi-sectoral opportunities of sustainable blue growth.
Managing marine socio-ecological systems: picturing the future
Thébaud, Olivier ; Link, Jason S. ; Kohler, Bas ; Kraan, M.L. ; Lopez, Romain ; Poos, J.J. ; Schmidt, Jorn O. ; Smith, David C. - \ 2017
ICES Journal of Marine Science 74 (2017)7. - ISSN 1054-3139 - p. 1965 - 1980.
What do you get when a lawyer, a modeller, an economist, a social scientist and an ecologist talk about the ocean? Besides an interesting conversation, it is likely there will be some consideration of how to solve many of the problems facing marine ecosystems around the world. That is precisely what the MSEAS 2016 symposium on understanding marine socio-ecological systems aimed to do. From 30 May to 3 June in Brest, France, the symposium gathered over 230 participants from around the world and from multiple disciplines to discuss the challenge of explicitly considering the human component in producing synoptic assessments of marine social-ecological systems. The symposium fostered dynamic debates on the inter-disciplinary collaborations needed to support management of ongoing and anticipated growth in multiple ocean uses, with particular consideration of the triple bottom line of ecological, economic and social sustainability. Building on the illustrations produced by a professional cartoonist during the meeting, this graphic novel summarizes the key challenges ahead in understanding marine socio-ecological systems and draws a path for future research endeavours in this domain.
Practical steps toward integrating economic, social and institutional elements in fisheries policy and management
Stephenson, Robert L. ; Benson, Ashleen J. ; Brooks, Kate ; Charles, Anthony ; Degnbol, Poul ; Dichmont, Catherine M. ; Kraan, Marloes ; Pascoe, Sean ; Paul, Stacey D. ; Rindorf, Anna ; Wiber, Melanie - \ 2017
ICES Journal of Marine Science 74 (2017)7. - ISSN 1054-3139 - p. 1981 - 1989.
ecosystem approach - fisheries sustainability - integrated management - integrating social and economic aspects - social-ecological system
While international agreements and legislation call for incorporation of four pillars of sustainability, the social (including cultural), economic and institutional aspects (the ‘human dimension’) have been relatively neglected to date. Three key impediments have been identified: a relative lack of explicit social, economic and institutional objectives; a general lack of process (frameworks, governance) for routine integration of all four pillars of sustainability; and a bias towards biological considerations. Practical integration requires a ‘systems’ approach with explicit consideration of strategic and operational aspects of management; multidisciplinary or transdisciplinary evaluations; practical objectives for the four pillars of sustainability; appropriate participation; and a governance system that is able to integrate these diverse considerations in management. We challenge all involved in fisheries to immediately take five practical steps toward integrating ecological, economic, social and institutional aspects: (1) Adopt the perspective of the fishery as a ‘system’ with interacting natural, human and management elements; (2) Be aware of both strategic and operational aspects of fisheries assessment and management; (3) Articulate overarching objectives that incorporate all four pillars of sustainability; (4) Encourage appropriate (and diverse) disciplinary participation in all aspects of research, evaluation and management; and (5) Encourage development of (or emulate) participatory governance.
Wie mag vissen? : verdeling van vangstrechten in EU-landen
Buisman, Erik ; Kraan, Marloes - \ 2017
Stakeholder participation in marine management: the importance of transparency and rules for participation
Rockmann, C. ; Kraan, M.L. ; Goldsborough, David - \ 2017
In: Conservation for the Antropocene ocean / Levin, Phillip S., Poe, Melissa R., Academic Press - ISBN 9780128053751 - p. 289 - 306.
Conserving nature requires the management of people and managing together with people. Marine management relies on scientific knowledge and expertise but is also inherently political, as it deals with aspects of resource access. Both local knowledge of practitioners and stakeholders' world views, values, and perceptions are important, adding to the scientific knowledge base and to understanding the management context. This chapter synthesizes existing literature and reviews on stakeholder participation. We analyze two marine management cases using eight key features of participation. The analyses illustrate that a participatory process can still not be successful if an underpinning participatory philosophy and clear objectives are lacking, participation is delayed and not well institutionalized. Clarity is needed about the participatory philosophy and process objective. The goal can be sharing knowledge or negotiating a decision. The increased need of stakeholder knowledge requires clarity about which of the two is driving the process. Rules of the game, including roles, responsibilities, and mandate need to be clear to all participants from the beginning.
International stakeholder dialogue on pulse fisheries : report of the second dialogue meeting, Amsterdam, 20 January 2017
Steins, Nathalie A. ; Smith, Sarah ; Strietman, Wouter Jan ; Kraan, Marloes ; Trapman, B.K. - \ 2017
IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C016/17) - 145
pulse trawling - fisheries - fishing methods - fishery policy - stakeholders - pulsvisserij - visserij - vismethoden - visserijbeleid
Frame Survey Curaçao’s fishing fleet 2016
Kraan, Marloes - \ 2017
IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C022/17) - 38
fishing vessels - fisheries - curacao - vissersschepen - visserij - curaçao
A brief inventory of the current fishing capacity (frame survey) of the insular fishing fleet of Curacao was conducted. Curacao is part of the Kingdom of the Netherlands. It lies in the southern Caribbean, approximately 60km off the coast of Venezuela.
Mission report Tanzania : scoping mission marine fisheries Tanzania
Hoof, Luc van; Kraan, Marloes - \ 2017
IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C004/17) - 66
zeevisserij - visserij - voedselzekerheid - zeewieren - samenwerking - handel - tanzania - marine fisheries - fisheries - food security - seaweeds - cooperation - trade
Gebrek aan eenduidigheid over doel: verschillende percepties, onduidelijke communicatie en complexe besluitvorming over aanlandplicht
Kraan, Marloes ; Trapman, Brita - \ 2016
Towards a better understanding of fishers’ behaviour : An multi- / transdisciplinary approach
Kraan, Marloes - \ 2016
Towards a better understanding of fishers’ behaviour : An multi- / transdisciplinary approach
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