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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Nationale Milieudag 2019
Burg, Sander van den - \ 2019
Workshop over zeewier. Licht op groen voor de zee­boerderij
Sessie 1A - Seagriculture - voedsel­productie op zee
Maar liefst 70% van het aardoppervlak bestaat uit water. Anders dan velen verwachten, liggen juist hier tal van mogelijkheden voor voedselproductie met geen of geringe milieu-impact. Met name zeewier biedt veel potentie. Kan dit zeegewas zich ontwikkelen tot de aardappel van de toekomst?
Steenmeel en natuurherstel: een gelukkige relatie of een risicovolle combinatie?
Diggelen, R. van; Bergsma, Huig ; Bijlsma, R.J. ; Bobbink, Roland ; Burg, A. Van den; Sevink, J. ; Siebel, H.N. ; Siepel, H. ; Vogels, J. ; Vries, W. de; Weijters, Maaike - \ 2019
Vakblad Natuur Bos Landschap (2019)155. - ISSN 1572-7610 - p. 20 - 23.
Sinds het midden van de vorige eeuw heeft de Nederlandsenatuur te lijden gehad van overmatige zuur- en stikstofdepositie. Maatregelen om de effecten hiervan te bestrijden, leidden niet altijd tot het gewenste resultaat en hadden soms dermate sterke neveneffecten dat ze eerder ongewenst waren. Sinds kort is steenmeel in beeld als middel dat mogelijk wel de positieve effecten maar niet de neveneffecten heeft. Kennis over de effecten vansteenmeel op gedegradeerde natuur en bos is echter nog lang geen gemeengoed. Op 18 februari 2019 organiseerden de VBNE en het OBN Deskundigen team Droog zandlandschap een discussiedag voor onderzoekers en andere direct betrokkenen rond het onderwerp “Steenmeel als herstelmaatregel” om kennis, inzichten en onzekerheden rond dit thema uit te wisselen en mogelijke richtlijnen te bespreken voor een eventuele toepassing van steenmeel als herstelmaatregel in natuurgebieden.
Prospects for upgrading european seaweeds; a value chain perspective
Burg, S.W.K. van den; Selnes, T. ; Dias, Ana ; Alves, Liliana ; Nuhoff-Isakhanyan, Gohar ; Helmes, Roel ; Daniel, Ana - \ 2019
In: Seaweeds: from tradition to innovation! 23rd international seaweed symposium. - - p. 137 - 138.
Ethics of smart farming : Current questions and directions for responsible innovation towards the future
Burg, Simone van der; Bogaardt, Marc Jeroen ; Wolfert, Sjaak - \ 2019
NJAS Wageningen Journal of Life Sciences (2019). - ISSN 1573-5214
Data ownership - Data sharing - Ethics - Open access - Power distribution - Smart farming - Societal impacts

Sensors, drones, weather satellites and robots are examples of technologies that make farming ‘smart’. In this article we present the results of our review of the literature that concerns the ethical challenges that smart farming raises. Our reading suggests that current ethical discussion about smart farming circles around three themes: (1) data ownership and access, (2) distribution of power and (3) impacts on human life and society. Discussions that fall under these themes have however not yet reached a satisfying conclusion, as there seem to be different ideas at work in the background regarding the purpose and function of digital farms in society. The pros and cons of these rivalling ideas are rarely foregrounded in the discussion. We suggest that future research should focus first on the content of these goals, especially on the content of societal and commercial goals and whether and how they can be combined in differing contexts. This will offer a lead to think about what data ought to be shared with whom, to set preconditions for trust between stakeholders and –eventually- develop appropriate guidelines and codes of conduct for future farming digitalization trajectories.

Development of Offshore Seaweed Cultivation : food safety, cultivation, ecology and economy : synthesis report 2018
Jansen, H.M. ; Tonk, Linda ; Werf, A. van der; Meer, I. van der; Tuinen, S. van; Burg, S. van der; Veen, J. ; Bronswijk, L. ; Brouwers, E. - \ 2019
IJmuiden : Wageningen Marine Research (Wageningen Marine Research report C012/19) - 17
Economic prospects for large-scale seaweed cultivation in the North Sea
Burg, Sander van den; Wakenge, Cito ; Berkhout, Petra - \ 2019
Wageningen : Wageningen Economic Research (Wageningen Economic Research momorandum 2019-012) - 19
The North Sea Farm Foundation pioneers seaweed cultivation in the North Sea. This project addresses the economic prospects of up-scaled production of seaweed, looking at production costs only. Scenarios for future large-scale seaweed production are formulated and evaluated using the EnAlgae economic model. Additionally, Monte Carlo analysis is performed. Based on the findings, we conclude that a significant cost reduction seems possible, with expected cost prices down to €1,200 per ton DM. If all goes well, relatively low-value markets such as the alginate market are within reach. More realistically, a mix of low- and medium-value markets is needed to cover the costs of seaweed production in the North Sea. Current developments show that these markets exist; especially in the food market where seaweeds can be promoted as organic, sustainable and fair trade.
Stel je voor dat Nederland grootschalig zeewier voor de kust gaat telen
Burg, S.W.K. van den - \ 2019
foodlog.nl
Nexus interventions for small tropical islands: case study Bonaire
Geest, Matthijs van der; Slijkerman, D.M.E. ; Mücher, C.A. ; Debrot, A.O. ; Burg, S.W.K. van den; Dominguez Teles, I. ; Henkens, R.J.H.G. ; Ghasemi, Nafiseh ; Kramer, H. ; Meijninger, W.M.L. ; Lotz, L.A.P. - \ 2019
Wageningen Marine Research - 85 p.
Nexus interventions for small tropical islands: case study Bonaire : Food from the Oceans
Debrot, A.O. ; Burg, S.W.K. van den - \ 2019
Wageningen Marine Research - 9 p.
Valuing biomarker diagnostics for dementia care : enhancing the reflection of patients, their care-givers and members of the wider public
Burg, Simone van der; Schreuder, Floris H.B.M. ; Klijn, Catharina J.M. ; Verbeek, Marcel M. - \ 2019
Medicine, Health Care and Philosophy (2019). - ISSN 1386-7423 - 13 p.
Care - Cure - Dementia - Early diagnostics - Ethics - Stakeholder discussion

What is the value of an early (presymptomatic) diagnosis of dementia in the absence of effective treatment? There has been a lively scholarly debate over this question, but until now (future) patients have not played a large role in it. Our study supplements biomedical research into innovative diagnostics with an exlporation of its meanings and values according to (future) patients. Based on seven focusgroups with (future) patients and their care-givers, we conclude that stakeholders evaluate early diagnostics with respect to whether and how they expect it to empower their capacity to (self-) care. They value it, for instance, with respect to whether it (a) explains experienced complaints, (b) allows to start a process of psychological acceptance and social adaptation to the expected degeneration, (c) contributes to dealing with anxieties (with respect to inheritable versions of dementia), (d) informs adequately about when to start preparing for the end of life, (d) informs the planning of a request for euthanasia, or (e) allows society to deal with a growing amount of dementia patients. Our study suggests that information about disease is considered ‘harmful’ or ‘premature’ when recipients feel unable to act on that information in their (self-) care. The results of this research offers input to further ethical research. It invites to adopt a care perspective in evaluation and to seek ways to prevent the ‘harm’ that such diagnostic methods can bring about.

The SUMO conjugation complex self-assembles into nuclear bodies independent of SIZ1 and COP1
Mazur, Magdalena J. ; Kwaaitaal, Mark ; Mateos, Manuel Arroyo ; Maio, Francesca ; Kini, Ramachandra K. ; Prins, Marcel ; Burg, Harrold A. van den - \ 2019
Plant Physiology 179 (2019)1. - ISSN 0032-0889 - p. 168 - 183.

Attachment of the small ubiquitin-like modifier (SUMO) to substrate proteins modulates their turnover, activity, or interaction partners. However, how this SUMO conjugation activity concentrates the proteins involved and the substrates into uncharacterized nuclear bodies (NBs) remains poorly understood. Here, we characterized the requirements for SUMO NB formation and for their subsequent colocalization with the E3 ubiquitin ligase CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1), a master regulator of plant growth. COP1 activity results in degradation of transcription factors, which primes the transcriptional response that underlies elongation growth induced by darkness and high ambient temperatures (skoto-and thermomorphogenesis, respectively). SUMO conjugation activity alone was sufficient to target the SUMO machinery into NBs. Colocalization of these bodies with COP1 required, in addition to SUMO conjugation activity, a SUMO acceptor site in COP1 and the SUMO E3 ligase SAP and Miz 1 (SIZ1). We found that SIZ1 docks in the substrate-binding pocket of COP1 via two valine-proline peptide motifs, which represent a known interaction motif of COP1 substrates. The data reveal that SIZ1 physically connects COP1 and SUMO conjugation activity in the same NBs that can also contain the blue-light receptors CRYPTOCHROME 1 and CRYPTOCHROME 2. Our findings thus suggest that sumoylation stimulates COP1 activity within NBs. Moreover, the presence of SIZ1 and SUMO in these NBs explains how both the timing and amplitude of the high-temperature growth response is controlled. The strong colocalization of COP1 and SUMO in these NBs might also explain why many COP1 substrates are sumoylated.

Assessment of the geographical potential for co-use of marine space, based on operational boundaries for Blue Growth sectors
Burg, S.W.K. van den; Aguilar-Manjarrez, José ; Jenness, Jeff ; Torrie, Melanie - \ 2019
Marine Policy 100 (2019). - ISSN 0308-597X - p. 43 - 57.
Aquaculture - Blue Economy - Blue Growth - Marine governance - Marine spatial planning

The worlds’ oceans and seas have tremendous potential to contribute to the provision of food, feed, energy and natural resources. The emerging concepts of “Blue Growth” and “Blue Economy” have put the development of new marine industries on the political agenda. As marine industries expand, spatial interconnections and industry boundaries are being drawn and the potential for the combined use of marine space is being explored. The aim of this paper is to provide a single source document that summarizes the probable boundaries of marine growth industries, namely aquaculture; offshore wind energy with fixed foundations; floating offshore wind energy; tidal and wave energy; marine biotechnology, seabed mining; and tourism and recreation, based on depth and distance from the shore. This is an important first step in developing a single source document for marine industry boundaries that will help marine spatial planners and researchers develop innovative industry combinations to foster growth in the marine sector. This paper explores marine industry overlaps in four basins: European Atlantic, Baltic/North Sea, Mediterranean/Black Sea and the Caribbean/ Gulf of Mexico. By describing the geographical characteristics of different sea basins, this paper helps to focus marine governance strategies for stimulating combinations of marine industries towards the most promising areas. The methodology developed in this paper was also used to generate 72 country-specific maps and corresponding tables to support marine spatial planning processes at a national level.

Assessing social innovation across offshore sectors in the Dutch North Sea
Soma, K. ; Burg, S.W.K. van den; Selnes, T. ; Heide, C.M. van der - \ 2019
Ocean & Coastal Management 167 (2019). - ISSN 0964-5691 - p. 42 - 51.
Maritime spatial planning - Social innovation - Dutch North Sea - Offshore mussel producton - Offshore seaweed production - Offshore wind production
Activities in the North Sea are intensifying. The European Union instructs maritime spatial planning across member states that motivates coordination of activities, stakeholders, policies, governance levels and nations. Social innovation is a concept addressing ways in which changing attitudes, behaviour or perceptions are leading to new and improved ways of acting jointly within a group and beyond. The main aim of this article is to explore social innovation in maritime spatial planning. Instances of social innovation are assessed across three sectors in the Dutch North Sea: the offshore wind energy, the offshore mussel cultivation and the offshore seaweed farming. The assessment shows that, while existing systems of social innovation are favourable to the offshore wind expansions, the barriers to grow for the offshore mussel sector include low willingness to change within the sector, and disadvantageous governmental support to change. The offshore seaweed farming is in a stage of re-organisation of not yet developed regulations, rules and norms for production offshore and enhanced cooperation, with unsure outcomes. Maritime spatial planning can play a more influential role for change if tackling main challenges, including inclusiveness, accountability, private user rights and realisation of organisation or reorganisation, and if making use of the potentials of knowledge brokers when sectors are advancing with new technologies.
Hatching failure and accumulation of organic pollutants through the terrestrial food web of a declining songbird in Western Europe
Oosten, H.H. van; Burg, Arnold B. van den; Arlt, Debora ; Both, Christiaan ; Brink, Nico W. van den; Chiu, Suzanne ; Crump, Doug ; Jeppsson, Tobias ; Kroon, Hans de; Traag, Wim ; Siepel, Henk - \ 2019
Science of the Total Environment 650 (2019). - ISSN 0048-9697 - p. 1547 - 1553.
Dioxin - DLC - Embryo - Inbreeding - Malformation - Passerine

Population growth in passerine birds is largely driven by fecundity. If fecundity is affected, for instance by hatching failure, populations may decline. We noted high hatching failure of up to 27% per year in relict populations of the Northern wheatear (Oenanthe oenanthe) in The Netherlands, a strongly declining, migratory passerine in Europe. This hatching failure itself can cause population decline, irrespective of other adverse factors. Additionally, we investigated the cause of hatching failure. Unhatched eggs showed egg yolk infections or embryonic malformations, part of which is associated with the actions of dioxin-like compounds (DLCs). Indeed, DLCs appear to bioaccumulate in the local foodweb, where the soil contained only background concentrations, similar to those found at many other locations. DLC concentrations in Dutch eggs were six-fold higher than those in a reference population in Sweden, where egg failure was only 6%. However, Northern wheatears appear to be only moderately sensitive to the actions of DLCs, because of their specific Ah-receptor type which may moderate the receptor mediated effects of DLCs. This indicates that the concentrations of DLCs, although elevated, may not have caused the embryo malformations or the low hatching rates. We discuss whether other toxins may be important or imbalances in the nutrition and if inbreeding may play a larger role than expected.

Sustainable seaweed value-chains : Economics, consumer attitudes and environmental impacts
Burg, S.W.K. van den; Dagevos, J.C. ; Helmes, Roel - \ 2018
Wageningen Economic Research - 8 p.
Making multi-use at sea safe : A Summary of the SOMOS Project
Goossen, C.M. ; Banach, J.L. ; Burg, S.W.K. van den; Hoof, L.J.W. van; Rockmann, C. ; Vredeveld, L. - \ 2018
- 16 p.
LED in rozen het moet beter!
Gelder, Arie de; Burg, Rick van der; Hartog, Ben - \ 2018
Bleiswijk : Wageningen University & Research, BU Glastuinbouw (Rapport Wageningen Plant Research WPR-819) - 34
Red Naomi! roses were grown under full LED and cooling in the summer of 2017 in a similar way as in 2016 with good results. At the end of October 2017, LEDs with an adapted spectrum were placed in 1/3 of the compartment. The quality problem again occurred under the red /blue spectrum, but in a lesser degree. Equal input of heat via the OPACs and pipe rail system had a favourable effect on the temperature distribution in the crop and thus on the development of the stems. Also crop treatments such as cutting strategy and bending have contributed to a better quality. The adjusted spectrum gave slightly larger buds, larger leaves and less thorns. That the “syndrome” was clearly less present under the adjusted spectrum has been confirmed by measures of flower properties, such as bud size, leaf size and number of thorns. In order to achieve sufficient dynamics in air humidity within a 24-hour period, the lightemission screen could not be completely closed. The energy target of 25% savings is realized when compared to a situation where the SON-T would be used as the LED for an equal number of hours. All the heat needed for cultivation, even when using LED lighting, can be collected in the summer by cooling the greenhouse and storage in an aquifer. The shelf life of roses grown under LED was comparable to that of a practical company. The research was conducted by Wageningen University & Research and Delphy in the context of Kas als Energiebron.
Spatial datasets to define operational boundaries within four marine basins delineated by distance from shore, depth, EEZ and protected status, accompanied by maps and statistical summary tables
Jenness, Jeff ; Burg, S.W.K. van den; Aguilar-Manjarrez, José ; Torrie, Melanie - \ 2018
Data in Brief 21 (2018). - ISSN 2352-3409 - p. 2638 - 2642.

This data article provides several datasets delineating, illustrating and summarizing marine regions within exclusive economic zones (EEZs) of 69 coastal states within the Atlantic, Baltic/North Sea, Mediterranean and Caribbean marine basins. Datasets include two GIS feature classes stored in a Version 10.0 file geodatabase: (1) A polygon feature class delineating operational boundaries within EEZs based on sovereign authority, distance bands from shore, depth ranges, and whether the region lies within a recognized protected area, and (2) A polyline feature class of shorelines for each coastal state. Both feature classes are fully described in the metadata. Datasets also include Excel files summarizing each marine basin and coastal state, summarized by area and proportion of all combinations of distance, depth and protected status. Datasets also include maps illustrating and describing all combinations of distance, depth and protection status, plus shoreline length, for each coastal state and for each marine basin. Datasets also include Visual Basic for Applications (VBA) code files used to generate all datasets, summary tables and maps. These datasets support analysis described in “Assessment of the geographical potential for co-use of marine space, based on operational boundaries for Blue Growth sectors” (van den Burg et al., 2018), and allow readers to extend the regional assessments described in that article down to individual country-level assessments.

Lerend beheer met Beheer-op-maat (BOM)
Melman, Dick - \ 2018
Afleidingsmanoevre of burg beheer-wetenschap-beleid?
The significance of social innovation for blue growth in the North Sea
Burg, S.W.K. van den; Soma, K. ; Selnes, T. - \ 2018
In: Innovation and Cooperation in Smart, Sustainable and Inclusive Rural Regions. - Warsaw : European Rural Development Network (Rural areas and development ) - ISBN 9788376587486 - p. 171 - 186.
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