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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    Slow Mill pilot Texel: Voortoets Wet natuurbescherming
    Jongbloed, Ruud ; Keur, Martijn ; Jak, Robbert ; Scholl, Michaela - \ 2020
    Den Helder : Wageningen Marine Research (Wageningen Marine Research rapport C072/20) - 101
    Assessment of the impact of gillnet fishery on seabirds in a possible Natura 2000-area Brown Ridge : intensity, economic value and risk for qualifying seabird species within five optional geographic borders
    Jongbloed, Ruud H. ; Glorius, Sander ; Wal, Jan Tjalling van der; Roskam, Jamal L. ; Hamon, Katell G. - \ 2019
    Den Helder : Wageningen Marine Research (Wageningen Marine Research report C008/20) - 70
    MICROPROOF Micropollutants in Road RunOff : Environmental risk assessment
    Tamis, Jacqueline ; Jongbloed, Ruud - \ 2019
    Netherlands : Wageningen Marine Research (Wageningen Marine Research report C004/20) - 62
    Quickscan mogelijke effecten gaswinning bij Borkumse Stenen op platteoesterrif
    Tamis, J.E. ; Jongbloed, R.H. ; Kamermans, P. - \ 2019
    Den Helder : Wageningen Marine Research (Wageningen Marine Research rapport C033/20) - 20
    In 2018 is een platteoesterrif bij de Borkumse Stenen aangelegd als natuurherstelmaatregel door het Wereld Natuur Fonds. In het gebied zijn ook gasvelden aangetroffen waarnaar proefboringen worden uitgevoerd. In dit rapport is een quickscan uitgevoerd van mogelijke effecten van alle bij gaswinning horende activiteiten op het benthos van de Borkumse Stenen en het aangelegde oesterrif.
    Aanvulling op de passende beoordeling mechanische winning van pieren door Arenicola B.V. op de Vlakte van Kerken (Waddenzee)
    Jongbloed, Ruud H. ; Leopold, Mardik F. - \ 2019
    Den Helder : Wageningen Marine Research (Wageningen Marine Research rapport C125/19) - 45
    HSE Guideline : D2.2
    Jak, R.G. ; Sterenborg, J. ; Jongbloed, R.H. ; Tamis, J.E. - \ 2019
    Brussel : European Commission - 72 p.
    This deliverable of the Space@Sea project provides guidance on Health, Safety and Environmental (HSE) aspects relevant to the design and application of floating modular islands. HSE requirements are very relevant aspects for the further development and future implementation of floating island constructions. The assessment of HSE issues is required to set standard preconditions for the floating island constructions. Particularly, the potential food and feed safety hazards as well as the associated environmental risks that may result from the multi-use platform environment is investigated. The concise guidance presented here is based on different types of information: 1) a hazard inventory (HAZID) elaborated in a risk register, and an evaluation of risks. This work is based on expert meetings and input from the four “application work packages” of the Space@Sea project, i.e. ‘EnergyHub’, ‘Living’, ‘Farming’ and ‘Ports & Logistics’; 2) an inventory of food safety issues in relation to multi-use of islands including aquaculture, based on literature study and 3) an inventory of possible ecosystem-module interactions, i.e. the impact of the floating modules on the ecosystem, and the impact of the ecosystem on food production and the (integrity of) floating structures. The issues considered and their interactions are elaborated in the report in chapters on hazards and risk management, food safety, and ecosystem interactions.
    NatuurVerkenning voor de Noordzee : voorbeeld uitwerking van een Noordzee bijdrage aan de Natuurverkenningen
    Jongbloed, R.H. ; Tamis, J.E. ; Vries, P. de; Piet, G.J. - \ 2019
    Den Helder : Wageningen Marine Research (Wageningen Marine Research rapport C055/19) - 83
    NatuurBalans Noordzee: voorbeeld uitwerking van een Noordzee bijdrage aan de balans van de leefomgeving
    Tamis, J.E. ; Jongbloed, R.H. ; Asjes, A. ; Vries, P. de; Piet, G.J. - \ 2019
    IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C034/19) - 132
    An integrated risk-based assessment of the North Sea to guide ecosystem-based management
    Piet, Gerjan ; Culhane, Fiona ; Jongbloed, Ruud ; Robinson, Leonie ; Rumes, Bob ; Tamis, Jacqueline - \ 2019
    Science of the Total Environment 654 (2019). - ISSN 0048-9697 - p. 694 - 704.
    This study provides an integrated perspective to ecosystem based management (EBM) by considering a diverse array of societal goals, i.e. sustainable food supply, clean energy and a healthy marine ecosystem, and a selection of management measures to achieve them. The primary aim of this exercise is to provide guidance for (more) integrated EBM in the North Sea based on an evaluation of the effectiveness of those management measures in contributing to the conservation of marine biodiversity. A secondary aim is to identify the requirements of the knowledge base to guide such future EBM initiatives.
    Starting from the societal goals we performed a scoping exercise to identify a “focal social-ecological system” which is a subset of the full social-ecological system but considered adequate to guide EBM towards the achievement of those societal goals. A semi-quantitative risk assessment including all the relevant human activities, their pressures and the impacted ecosystem components was then applied to identify the main threats to the North Sea biodiversity and evaluate the effectiveness of the management measures to mitigate those threats.
    This exercise revealed the need for such risk-based approaches in providing a more integrated perspective but also the trade-off between being comprehensive but qualitative versus quantitative but limited in terms of the “focal” part of the SES that can be covered. The findings in this paper provide direction to the (further) development of EBM and its knowledge base that should ultimately allow an integrated perspective while maintaining its capacity to deliver the accuracy and detail needed for decision-making.
    Improving CEA: moving from expert judgement to more quantitative approaches
    Piet, G.J. ; Jongbloed, R.H. ; Tamis, J.E. ; Vries, P. de - \ 2018
    - 1 p.
    Currently the most comprehensive cumulative effects assessment (CEA)
    framework in terms of human activities and their pressures affecting the ecosystem components of the North Sea is still based on semi-quantitative scores from expert judgement. The outcome of this CEA is strongly determined by the estimation of the severity of the interaction which suffers from the fact that it only has three impact categories, i.e. none, chronic and acute, which capture the effect at the level of the individual but without any consideration of how this translates to population -level effect which best represents the actual
    impact risk. Also, while Exposure appears adequately covered with both a spatial and a temporal component (albeit still based on expert judgement), the intensity of the pressure which together with the sensitivity of the population determines the severity and hence the population-level impact risk is ignored. In this study we show how a CEA can be improved by including quantitative information that adequately covers the above issues. We also present a framework that determines the confidence level of the CEA depending on the (quality of the) information used and methodological choices. This framework can be used to guide the development of science to improve the confidence level.
    Habitatgeschiktheid van de Westerschelde voor de stekelrog (Raja clavata)
    Winter, H.V. ; Jongbloed, R.H. - \ 2018
    IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C028/18) - 37
    Kwetsbare soorten voor energie-infrastructuur in Nederland : overzicht van effecten van hernieuwbare energie-infrastructuur en hoogspanningslijnen op de kwetsbare soorten vogels, vleermuizen, zeezoogdieren en vissen, en oplossingsrichtingen voor een natuurinclusieve energietransitie
    Buij, Ralph ; Jongbloed, Ruud ; Geelhoed, Steve ; Jeugd, Henk van der; Klop, Eric ; Lagerveld, Sander ; Limpens, Herman ; Meeuwsen, Henk ; Ottburg, Fabrice ; Schippers, Peter ; Tamis, Jacqueline ; Verboom, Jana ; Wal, Jan Tjalling van der; Wegman, Ruut ; Winter, Erwin ; Schotman, Alex - \ 2018
    Wageningen : Wageningen Environmental Research (Wageningen Environmental Research rapport 2883) - 231
    De cumulatieve impact van energie-infrastructuur kan een belangrijke rol spelen bij de populatieontwikkeling van kwetsbare soorten door sterfte en habitatverlies als gevolg van aanvaringen met die energie-infrastructuur of het verstorende effect van dergelijke infrastructuur. In dit rapport wordt een zo actueel en volledig mogelijk overzicht gegeven van de staat van kennis en de relatieve kwetsbaarheid van vogels, vleermuizen, zeezoogdieren en vissen in relatie tot de impact van windturbines, hoogspanningslijn
    en, waterkrachtcentrales en zonnepaneelvelden. Voor deze soortgroepen en energie-infrastructuur worden de kwetsbare soorten gerangschikt op basis van hun kwetsbaarheid en wordt inzichtelijk gemaakt waar de verspreiding van de kwetsbaarste soorten overlapt met de energie-infrastructuur. We evalueren hoe de cumulatieve impact van energie-infrastructuur op de soortgroepen gekwantificeerd kan worden nu en in de toekomst, en hoe die impact zich verhoudt tot andere antropogene drukfactoren voor de kwetsbaarste soorten. We bespreken mitigatie- en compensatiemaatregelen die in potentie kunnen voorkomen dat Nederlandse populaties van soorten afnemen als gevolg van de huidige en toekomstige energie-infrastructuur op zee en op land. Tot slot worden suggesties gedaan voor het opvullen van de belangrijkste kennishiaten en oplossingsrichtingen die het mogelijk maken de effecten op kwetsbare soorten bij de verdere groei van energie-infrastructuur op land en op zee te minimaliseren.
    Techniques to assess biological variation in destructive data
    Tijskens, L.M.M. ; Schouten, R.E. ; Jongbloed, G. ; Konopacki, P.J. - \ 2018
    In: 8th International Postharvest Symposium. - International Society for Horticultural Science (Acta Horticulturae ) - ISBN 9789462611900 - p. 1383 - 1390.
    Biological variation - Cross-sectional data - Non-destructive data - Technical variation
    Variation is present in all measured data, due to variation between individuals (biological variation) and variation induced by the measuring system (technical variation). Biological variation present in experimental data is not the result of a random process but strictly subject to deterministic rules as found on non-destructive data. The majority of data obtained in research are obtained by destructive techniques. The rules on behaviour and magnitude of variation should however, also apply to these cross sectional data. New techniques have been developed for analysing cross sectional data including the assessment of variation: 1) Probelation. In a set of cross-sectional data, the individual with the highest value at some point in time will resemble the individual with the highest value at previous or future times, and the second highest the second highest at previous times, and so on. One can assign an identification number based on the sorted order of the measured values per measuring point in time. This number can be used as a pseudo fruit number in indexed or mixed effects regression analysis, similar to the data analysis of longitudinal data; 2) Density assessment. For not too complex kinetic processes the density function can be deduced. Measuring a large number of individuals (on a single point in time) provides the possibility to assess directly the variation in the data; 3) Quantile regression. This technique also relies on ranking the data per measuring time. The probelation number is now converted into a probability, and the mean and standard deviation is estimated directly along with the kinetic parameter, using simple non-linear regression. Based on simulated data sets, all three techniques are demonstrated, and the results compared with the input values. Explained parts (R2 adj) obtained are generally well over 90%, provided that the technical variation is not excessively large.
    Description of the Outstanding Universal Value (OUV) of the Proposed Marine Nomination Properties of the Bonaire and Curaçao Marine Parks (BCMP)
    Debrot, Dolfi ; Langley, Josephine ; Vermeij, Mark ; Slijkerman, Diana ; Jongbloed, Ruud ; Beek, Ingrid van; Freitas, John de; Pors, Leon ; Jak, Robert ; Rockmann, Christine ; Cremer, Jenny - \ 2017
    Den Helder : Wageningen Marine Research (Wageningen Marine Research report C003/18) - 184
    Bijvangst door innovatieve visserijmethoden voor wolhandkrab op het IJsselmeer
    Jongbloed, R.H. ; Hoppe, M. van; Hal, R. van - \ 2017
    IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C057/17) - 70
    Habitatgeschiktheidsanalyse voor stekelrog (Raja clavata) in Oosterschelde en Voordelta
    Jongbloed, R.H. ; Overzee, H.M.J. van; Hal, R. van - \ 2017
    IJmuiden : Wageningen Marine Research (Wageningen Marine Research rapport C059/17) - 72
    Cumulative effects assessment: proof of concept marine mammals
    Piet, Gerjan ; Boon, Arjen ; Jongbloed, Ruud ; Meulen, Myra van der; Tamis, Jacqueline ; Teal, Lorna ; Wal, Jan Tjalling van der - \ 2017
    Den Helder : Wageningen Marine Research (Wageningen Marine Research report C002/17) - 107
    marine mammals - marine ecology - environmental impact - environmental assessment - ecological risk assessment - zeezoogdieren - mariene ecologie - milieueffect - milieutoets - ecologische risicoschatting
    This development of the framework and approach for a Cumulative Effects Assessment (CEA) is based on a literature review. The literature identified some key challenges that need to be addressed for CEA to evolve into a consistent, appropriate tool to assist decision-making. These challenges included • A clear distinction of the receptor-led CEA from the dominating stressor-led Environmental Impact Assessment (EIA) approaches and • Enabling CEA to provide ecosystem-relevant information at an appropriate regional scale. Therefore this CEA is explicitly developed to be a receptor-led and fully integrated framework, i.e. involving multiple occurrences of multiple pressures (from single and/or different sources) on multiple receptors, as opposed to other existing approaches dealing with only a subset of those pressures or receptors, hence our use of the phrase iCEA for integrated CEA. As a proof of concept for this iCEA we selected one receptor, the ecosystem component marine mammals. The main conclusions of this exercise (see Chapter 6) are that the iCEA framework and approach presented in this study appear suitable to fulfil its main purpose and ultimately inform the policy process as described in the conception phase. However it should be acknowledged this is only the very first step in a process where through many iterations new information can be introduced and assessed (relative to existing information) based on the criteria provided resulting in an improved iCEA with increasing confidence levels. As more information becomes available the relative importance of impact chains and its corresponding information modules may change giving direction to new areas for research. For further development of this iCEA towards its intended applications we can distinguish between the first purpose, i.e. identification of the main impact chains contributing to the risk that a specific ecosystem component is impacted, which can be achieved with the approach presented here focussing on one specific ecosystem component and the second purpose, i.e. an evaluation of the performance of possible management strategies, which would require all ecosystem components to be included as would be required for ecosystem-based management. Thus to further the development and application of this iCEA towards its (two) purpose(s) the recommendation is to: • Include the available information presented in this report into the iCEA and develop the Bayesian Belief Network such that it can process this information and its associated confidence into an assessment that identifies the main impact chains for the marine mammals. • Extend the framework and approach to (all) the other ecosystem components so that a truly integrated CEA is possible. Note that this is likely to affect the identification of what should be considered the main pressures to guide management. • Improve the information modules that emerged from the evaluation as the most promising to increase the confidence in the outcome of the iCEA. Note that the previous two steps may result in a different prioritisation of the information modules as the importance of pressures and hence impact chains changes.
    Assessing biological and technical variation in destructively measured data
    Tijskens, L.M.M. ; Konopacki, P.J. ; Jongbloed, G. ; Penchaiya, P. ; Schouten, R.E. - \ 2017
    Postharvest Biology and Technology 132 (2017). - ISSN 0925-5214 - p. 31 - 42.
    Biological variation - Cross-sectional data - Non-destructive data - Statistical analysis - Technical variation

    The majority of experimental data are obtained by destructive measuring techniques. Inevitably, in all these data variation is present, sometimes small and negligible, sometimes large, preventing proper analysis and extraction of meaningful information by traditional statistical techniques altogether. In this paper, three systems are presented to analyse destructive (cross-sectional) data, including biological as well as technical variation. The first system involves ranking the data per measuring point in time which provides a pseudo fruit number that can be used in non-linear indexed regression analysis similar as for non-destructive (longitudinal) data. The rationale behind this is that the individual with the highest value at some point in time will resemble the most another individual with the highest value at previous or future times, and the second highest the second highest at previous times, and so on. The second system also relies on this ranking number, but is now converted into a probability, which is used in non-linear regression analysis with quantile functions. The third system is based on optimising the log likelihood of the density function derived from the applied model (i.e., the expected distribution) over the measured data. Simulated data are used to elucidate the power of the three systems. A dataset on mango colour is used to validate the systems on a real-world data set. Although all three systems perform satisfactorily with percentages variability accounted for (R2 adj) well over 90%, a clear preference cannot be given since the choice of the proper analysis system depends on the experimental conditions (number of data, individuals and sampling points in time). Non-linear indexed and non-linear regression with quantile functions delivered the most reliable estimates. The three systems open up the possibility to analyse and reanalyse destructively measured data providing a sufficient large number of individuals and a clear indication of the kinetic model is available.

    Ecological risk assessments to guide decision-making : Methodology matters
    Piet, Gerjan J. ; Knights, Antony M. ; Jongbloed, Ruud H. ; Tamis, Jacqueline E. ; Vries, Pepijn de; Robinson, Leonie A. - \ 2017
    Environmental Science & Policy 68 (2017). - ISSN 1462-9011 - p. 1 - 9.
    Ecosystem component - Ecosystem-based management - Exposure-effect - Pressure - Sector
    Ecological risk assessment is often applied to guide the decision-making process that underpins ecosystem-based management and prioritisation of risk factors for management. Several studies have recently used ecological risk assessment approaches to identify risk factors of greatest concern, but rarely are the underlying methodological decisions discussed in terms of the effect that those decisions have on the outcome of the assessment and ultimately, how that affects prioritisation of risk factors for management. This study therefore evaluates the effect of methodological decisions involving (1) the choice and definition of risk factors, and (2) the calculation of risk scores, providing, where possible, recommendations on what should be the most appropriate methodologies. The definition of risk factors is often determined by the policy context and could result in the comparison of one broadly defined risk meta-factor (e.g. Food Production) with corresponding specific risk factors defined more narrowly (i.e. Oil and Gas production or Offshore Wind). Depending on the method to calculate risk this may result in a systematic bias prioritising any risk meta-factor. For the calculation of individual impact chain risk scores we compared weighted scores with ordinal scores, where the former allows more flexibility to represent the qualitative categories that determine risk and provided results better supported by scientific evidence. A consideration of different risk assessment applications in EBM showed there is no one-size-fits-all solution to this as these methodological decisions need to be considered in concert and the preferred methodology may depend on the context in which the risk assessment is applied. The outcome of the risk assessment should always be accompanied by an explicit consideration of these methodological issues and description of the resulting methodological choices.
    14-3-3epsilon controls multiple developmental processes in the mouse heart
    Gittenberger-de Groot, Adriana C. ; Hoppenbrouwers, Tamara ; Miquerol, Lucile ; Kosaka, Yasuhiro ; Poelmann, Robert E. ; Wisse, Lambertus J. ; Yost, H.J. ; Jongbloed, Monique R.M. ; Deruiter, Marco C. ; Brunelli, Luca - \ 2016
    Developmental Dynamics 245 (2016)11. - ISSN 1058-8388 - p. 1107 - 1123.
    14-3-3 - cardiac outflow tract - coronary artery hypoplasia - endocardial cushion - heart development - mouse - myocardial hypoplasia - ventricular septal defect

    Background: 14-3-3ε plays an important role in the maturation of the compact ventricular myocardium by modulating the cardiomyocyte cell cycle via p27kip1. However, additional cardiac defects are possible given the ubiquitous expression pattern of this protein. Results: Germ line deletion of 14-3-3ε led to malalignment of both the outflow tract (OFT) and atrioventricular (AV) cushions, with resulting tricuspid stenosis and atresia, mitral valve abnormalities, and perimembranous ventricular septal defects (VSDs). We confirmed myocardial non-compaction and detected a spongy septum with muscular VSDs and blebbing of the epicardium. These defects were associated with abnormal patterning of p27kip1 expression in the subendocardial and possibly the epicardial cell populations. In addition to abnormal pharyngeal arch artery patterning, we found deep endocardial recesses and paucity of intramyocardial coronary vasculature as a result of defective coronary plexus remodeling. Conclusions: The malalignment of both endocardial cushions provides a new explanation for tricuspid and mitral valve defects, while myocardial non-compaction provides the basis for the abnormal coronary vasculature patterning. These abnormalities might arise from p27kip1 dysregulation and a resulting defect in epithelial-to-mesenchymal transformation. These data suggest that 14-3-3ε, in addition to left ventricular non-compaction (LVNC), might be linked to different forms of congenital heart disease (CHD). Developmental Dynamics 245:1107–1123, 2016.

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