Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    '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.

    We have a manual that explains all the features 

Records 1 - 20 / 34

  • help
  • print

    Print search results

  • export

    Export search results

  • alert
    We will mail you new results for this query: q=Ziegler
Check title to add to marked list
Assessing broad life cycle impacts of daily onboard decision-making, annual strategic planning, and fisheries management in a northeast Atlantic trawl fishery
Ziegler, F. ; Groen, E.A. ; Hornborg, S. ; Bokkers, E.A.M. ; Karlsen, K.M. ; Boer, I.J.M. de - \ 2018
The International Journal of Life Cycle Assessment 23 (2018)7. - ISSN 0948-3349 - p. 1357 - 1367.
Purpose: Capture fisheries are the only industrial-scale harvesting of a wild resource for food. Temporal variability in environmental performance of fisheries has only recently begun to be explored, but only between years, not within a year. Our aim was to better understand the causes of temporal variablility withing and between years and to identify improvement options through management at a company level and in fisheries management. Methods We analyzed the variability in broad environmental impacts of a demersal freeze trawler targeting cod, haddock, saithe, and shrimp, mainly in the Norwegian Sea and in the Barents Sea. The analysis was based on daily data for fishing activities between 2011 and 2014 and the functional unit was a kilo of landing from one fishing trip. We used biological indicators in a novel hierarchic approach, depending on data availability, to quantify biotic impacts. Landings were categorized as target (having defined target reference points) or bycatch species (classified as threatened or as data-limited). Indicators for target and bycatch impacts were quantified for each fishing trip, as was the seafloor area swept. Results and discussion No significant difference in fuel use was found between years, but variability was considerable within a year, i.e., between fishing trips. Trips targeting shrimp were more fuel intensive than those targeting fish, due to a lower catch rate. Steaming to and from port was less important for fuel efficiency than steaming between fishing locations. A tradeoff was identified between biotic and abiotic impacts. Landings classified as main target species generally followed the maximum sustainable yield (MSY) framework, and proportions of threatened species were low, while proportions of data-limited bycatch were larger. This improved considerably when reference points were defined for saithe in 2014. Conclusions The variability between fishing trips shows that there is room for improvement through management. Fuel use per landing was strongly influenced by target species, fishing pattern, and fisheries management. Increased awareness about the importance of onboard decision-making can lead to improved performance. This approach could serve to document performance over time helping fishing companies to better understand the effect of their daily and more long-term decision-making on the environmental performance of their products. Recommendations Fishing companies should document their resource use and production on a detailed level. Fuel use should be monitored as part of the management system. Managing authorities should ensure that sufficient data is available to evaluate the sustainability of exploitation levels of all harvested species
Deliverable No. 10.1: Quantified SUSFANS scenario drivers ready to be used by the modeling toolbox
Havlik, P. ; Dijk, M. van; Achterbosch, T.J. ; Batka, M. ; Boere, E. ; Folberth, C. ; Frank, S. ; Götz, C. ; Heckelei, T. ; Valin, H. ; Ziegler, F. ; Zurek, M. - \ 2017
SUSFANS - 24 p.
IoT European Large-Scale Pilots – Integration, Experimentation and Testing
Guillén, Sergio ; Sala, Pilar ; Fico, Giuseppe ; Arredondo, María Teresa ; Cano, Alicia ; Posada, Jorge ; Gutiérrez, German ; Palau, Carlos ; Votis, Konstantinos ; Verdouw, C.N. ; Wolfert, J. ; Beers, G. ; Sundmaeker, H. ; Chatzikostas, Grigoris ; Ziegler, Sébastian ; Hemmens, Christopher ; Holst, Marita ; Stahlbröst, Anna ; Scudiero, Lucio ; Reale, C. ; Krco, S. ; Drajic, D. ; Eisenhauer, M. ; Jahn, M. ; Valino, J. ; Gluhak, A. ; Brynskov, M. ; Vermesan, O. ; Fischer, F. ; Lenz, O. - \ 2017
In: Cognitive Hyperconnected Digital Transformation Internet of Things Intelligence Evolution / Vermesan, O., Bacquet, J., River Publishers - ISBN 9788793609112 - p. 221 - 282.
Deliverable No. 5.1: Baseline sustainability assessment of the current state of livestock/fish and fruit/vegetables supply chains
Zanten, H.H.E. van; Hornborg, Sara ; Ziegler, F. ; Tetens, I. ; Leip, Adrian ; Kuiper, M.H. ; Boer, I.J.M. de - \ 2017
SUSFANS - 50 p.
To assess different possible future directions for the EU food system, potential pathways based on a set of innovations need to be identified. The aim of WP5 is to define different pathways towards more sustainable and healthy diets within the EU, without negative implications in the rest of world. This first report of WP 5 makes the case for the two selected case studies based on the current situation, provides as first set of innovation pathways and explores the use of metrics in a spider diagram to assess sustainable FNS. The innovations focus on two cases, ‘livestock and fish case’ and ‘the fruit and vegetable case’. For both supply chains there are concerns regarding the current European diet (too high consumption of livestock and too limited consumption fruit, vegetables and seafood), whereas for livestock and fish production there are also pressing environmental concerns (land use, GHG emissions, fish stock depletion).
Deliverable No. D4.7: Database on farm-level production and sutainability indices assessing sustainable diets
Zimmermann, A. ; Götz, Christian ; Leip, A. ; Zanten, H.H.E. van; Hornborg, Sara ; Ziegler, Friederike - \ 2017
SUSFANS - 45 p.
This paper demonstrates that SUSFANS metrics for assessing the environmental sustainability of the European food system can be effectively produced and applied to assess policy measures and potential innovations that aim at achieving sustainable food and nutrition security in the European Union. The analysis points at important issues that need to be taken into account for the further development and application of metrics.
Deliverable D5.2: Innovation pathways towards future nutrition security : Innovation pathways towards more sustainable production and consumption in the livestock-fish supply chain and their uptake in the SUSFANS models
Zanten, H.H.E. van; Parodi Parodi, A. ; Hornborg, Sara ; Ziegler, F. ; Boer, I.J.M. de - \ 2017
SUSFANS - 62 p.
Our current dietary pattern especially animal source food (ASF), has a strong impact on the environment. Furthermore, in Europe, daily consumption of ASF protein is above dietary recommendation, resulting in an increased risk of chronic non-communicable diseases.The aim of this deliverable was to identify innovations that together can result in a pathway towards sustainable nutrition security by combining production-side strategies (reducing the environmental impact per kg of ASF produced), consumption-side strategies (changing consumption patterns of humans by reducing or replacing ASF), and the circular strategie, (focus on improving the circularity of the food system, and avoiding feed-food competition, and lies in between the production and consumption-side strategies). The paper identifies a set of innovations that has the potential to deliver a pathway towards sustainble healthy diets. These innovations comprise: including insects in livestock and fish feed; reducing meat intake and replacing beef with other ASF products including fish, and including novel protein source e.g. in-vitro meat; a circular strategy centred around using products unfit for human consumption in livestock feed. Data is presented that supports the assessment of the impact of these innovation options on the contribution of ASF in a sustainable and healthy diet, using the SUSFANS toolbox. Similar to this the role of captured seafood - fishing at equilibrium (sustainable yields)- in a suitable diet will be assessed.
Deliverable No. 1.3: Sustainability metrics for the EU food system: a review across economic, environmental and social considerations
Zurek, Monika ; Leip, Adrian ; Kuijsten, Anneleen ; Wijnands, Jo ; Terluin, Ida ; Shutes, Lindsay ; Hebinck, Aniek ; Zimmermann, Andrea ; Götz, Christian ; Hornborg, Sara ; Zanten, Hannah van; Ziegler, Friederike ; Havlik, Petr ; Garrone, Maria ; Geleijnse, Marianne ; Kuiper, Marijke ; Turrini, Aida ; Dofkova, Marcela ; Trolle, Ellen ; Mistura, Lorenza ; Dubuisson, Carine ; Veer, Pieter van 't; Achterbosch, Thom ; Ingram, John ; Brem-Wilson, Joshua ; Franklin, Alex ; Fried, Jana ; Guzman Rodriguez, Paola ; Owen, Luke ; Saxena, Lopa ; Trenchard, Liz ; Wright, Julia - \ 2017
SUSFANS - 78
One of the main objectives of the SUSFANS project is to develop a set of concepts and tools to help policy and decision makers across Europe make sense of the outcomes and trends of the EU food system. This paper proposes a set of metrics for assessing the performance of the EU food system in delivering sustainable food and nutrition security. The performance metrics have been built up through the aggregation of a wide range of variables, which together help to monitor the achievement of four overarching policy goals for the EU food system, namely a balanced diet for EU citizens, reduced environmental impacts, competitive agri-food businesses and equitable outcomes of the food system. The project decided to take a hierarchical approach to aggregating from Individual Variables to Derived Variables to Aggregate Indicators to Performance Metrics. This approach aims at marrying the notion that decision makers want only a small but powerful set of metrics to communicate the findings of the assessment, with the need to substantiate these metrics with the best available data from a large number of sources in a transparent way. In this deliverable the current set up of the performance metrics focus on each individual policy goal. In a related report, the team explores if and how the performance metrics presented here can be quantified using available data and modelling tools, and which of the models of the SUSFANS tool box can estimate which ones of the performance metrics and how (report D1.4). In a final step the SUSFANS team will bring all performance metrics together in an integrated set that will allow a view across all four policy goals and thus across all aspects of sustainable food and nutrition security (forthcoming report D1.5). Further work is the quantification of metrics using case studies and prospective scenario analysis. In addition to their use for monitoring, the proposed metrics are geared towards quantification using selected computational modelling tools. As such, SUSFANS aims to assist in foresight on and the evaluation of transformative changes in the food system with rigour and consistency.
Deliverable 1.1: A Conceptual Framework for Assessing and Devising Policy for Sustainable Food and Nutrition Security in the EU: the SUSFANS conceptual framework
Zurek, M. ; Ingram, J. ; Zimmermann, A. ; Garrone, M. ; Rutten, M. ; Tetens, I. ; Leip, A. ; Veer, P. van 't; Verain, M.C.D. ; Bouwman, Emily ; Marette, Stephan ; Chang, C. ; Latka, C. ; Hornborg, S. ; Ziegler, F.S. ; Vervoort, J. ; Achterbosch, T.J. ; Terluin, I.J. ; Havlik, P. ; Deppermann, A. - \ 2016
SUSFANS - 102 p.
The Mouse Intestinal Bacterial Collection (miBC) provides host-specific insight into cultured diversity and functional potential of the gut microbiota
Lagkouvardos, Ilias ; Pukall, Rüdiger ; Abt, Birte ; Foesel, Bärbel U. ; Meier-Kolthoff, Jan P. ; Kumar, Neeraj ; Bresciani, Anne ; Martínez, Inés ; Just, Sarah ; Ziegler, Caroline ; Brugiroux, Sandrine ; Garzetti, Debora ; Wenning, Mareike ; Bui, Thi P.N. ; Wang, Jun ; Hugenholtz, Floor ; Plugge, Caroline M. ; Peterson, Daniel A. ; Hornef, Mathias W. ; Baines, John F. ; Smidt, Hauke ; Walter, Jens ; Kristiansen, Karsten ; Nielsen, Henrik B. ; Haller, Dirk ; Overmann, Jörg ; Stecher, Bärbel ; Clavel, Thomas - \ 2016
Nature Microbiology 1 (2016). - ISSN 2058-5276

Intestinal bacteria influence mammalian physiology, but many types of bacteria are still uncharacterized. Moreover, reference strains of mouse gut bacteria are not easily available, although mouse models are extensively used in medical research. These are major limitations for the investigation of intestinal microbiomes and their interactions with diet and host. It is thus important to study in detail the diversity and functions of gut microbiota members, including those colonizing the mouse intestine. To address these issues, we aimed at establishing the Mouse Intestinal Bacterial Collection (miBC), a public repository of bacterial strains and associated genomes from the mouse gut, and studied host-specificity of colonization and sequence-based relevance of the resource. The collection includes several strains representing novel species, genera and even one family. Genomic analyses showed that certain species are specific to the mouse intestine and that a minimal consortium of 18 strains covered 50-75% of the known functional potential of metagenomes. The present work will sustain future research on microbiota-host interactions in health and disease, as it will facilitate targeted colonization and molecular studies. The resource is available at www.dsmz.de/miBC.

Volksdijk, BNA Ontwerpstudie "Adaptieve Dijk"
Vries, Sjors de; Broekhuizen, R.E. van; Agricola, H.J. ; Kuiper, Erik ; Blokland, Johan ; Ziegler, Philip ; Aben, Rob - \ 2016
s.n. - 45 p.
Volksdijk; de adaptieve dijk, studielocatie Grebbedijk : De adaptieve dijk; strategieën voor dijktransitie in de komende 100 jaar
Blokland, J. ; Ziegler, P. ; Aben, R. ; Vries, R. de; Broekhuizen, R.E. van; Agricola, H. ; Kuiper, E. - \ 2016
In: Volksdijk; de adaptieve dijk, studielocatie Grebbedijk BNA Onderzoek Amsterdam - p. 32 - 41.
dijken - veiligheid - hoogwaterbeheersing - waterbouwkunde - innovaties - ruimtelijke ordening - gebiedsontwikkeling - dykes - safety - flood control - hydraulic engineering - innovations - physical planning - area development
Hoe kan de dijk weer volwaardig onderdeel worden van de maatschappij, zonder daarbij de veiligheid aan te tasten? Kunnen we onze democratie –die een oorsprong heeft in de waterschappen- herijken en waarde geven? Hoe maken van de dijk als technisch kunstwerk ook een democratisch kunstwerk dat past bij 21ste eeuw? Hoe transformeren we de verkrampte en functioneel eenzijdige dijk in een adaptieve en veelzijdige dijk?
Cumulative dietary exposure to a selected group of pesticides of the trazole group in different European countries according to the EFSA guidance on Probabilistic modelling
Boon, P.E. ; Donkersgoed, G. van; Christodoulou, D. ; Crépet, A. ; Addezio, L. D'; Desvignes, V. ; Ericsson, B.G. ; Strömberg, A. ; Turrini, A. ; Voet, H. van der; Ziegler, P. ; Hamey, P. ; Klaveren, J.D. van - \ 2015
Food and Chemical Toxicology 79 (2015). - ISSN 0278-6915 - p. 13 - 31.
organophosphorus
The practicality was examined of performing a cumulative dietary exposure assessment according to the requirements of the EFSA guidance on probabilistic modelling. For this the acute and chronic cumulative exposure to triazole pesticides was estimated using national food consumption and monitoring data of eight European countries. Both the acute and chronic cumulative dietary exposures were calculated according to two model runs (optimistic and pessimistic) as recommended in the EFSA guidance. The exposures obtained with these model runs differed substantially for all countries, with the highest exposures obtained with the pessimistic model run. In this model run, animal commodities including cattle milk and different meat types, entered in the exposure calculations at the level of the maximum residue limit (MRL), contributed most to the exposure. We conclude that application of the optimistic model run on a routine basis for cumulative assessments is feasible. The pessimistic model run is laborious and the exposure results could be too far from reality. More experience with this approach is needed to stimulate the discussion of the feasibility of all the requirements, especially the inclusion of MRLs of animal commodities which seem to result in unrealistic conclusions regarding their contribution to the dietary exposure.
D4.3 - BSCI final run impact assessment from all cases
Boer, I.J.M. de; Bokkers, E.A.M. ; Berentsen, P.B.M. ; Ziegler, F. ; Krewer, C. ; Sund, V. ; Groen, E.A. ; Veldhuizen, L.J.L. ; Olsen, P. - \ 2014
Wageningen : Animal Sciences Group (EU deliverable (WhiteFish project on automated and differentiated calculation of sustainability for cod and haddock products) ) - 33 p.
D2.3 - Third version of BCSI
Boer, I.J.M. de; Bokkers, E.A.M. ; Berentsen, P.B.M. ; Ziegler, F. ; Krewer, C. ; Sund, V. ; Groen, E.A. ; Veldhuizen, L.J.L. ; Olsen, P. - \ 2014
Wageningen : Animal Sciences Group (EU deliverable (WhiteFish project on automated and differentiated calculation of sustainability for cod and haddock products) ) - 10 p.
Environmental impacts of a demersal freeze trawler on a fishing trip basis
Ziegler, F. ; Groen, E.A. ; Hornborg, S. ; Bokkers, E.A.M. ; Karlsen, K.M. ; Boer, I.J.M. de - \ 2014
Life Cycle Assessment (LCA) quantifies the environmental impact of products, often using annual average data. Fisheries often show high spatial and temporal variability within a year and annual values may be too coarse to identify causes and improvement options on an appropriate level. Using LCA methodology, we analysed two years of data of a demersal freeze trawler targeting cod, haddock, saithe and shrimp mainly in the Norwegian and Barents Seas. The product was a kg of landed fish or shrimp from one fishing trip, frozen at sea. We quantified standard LCA impacts and biotic indicators (e.g. impacts on target and bycatch stocks) showing large variation between fishing trips. Fuel use was the main driver of emission-based impacts. Shrimp trawling was more fuel intensive than fish trawling per kg landed, due to lower catch rates. Bycatch (defined as catch of species other than the main target species) was low due to use of a species-selective grid in shrimp trawling. Fish trawling required less fuel, but landed varying amounts of bycatch. Quantifying environmental impacts of seafood products on a fine scale could help fishing companies, managers and certifiers to better understand the effect of decision-making on the environmental performance of seafood products.
Variability in fuel efficiency of a northeast Atlantic demersal trawl fishery
Groen, E.A. ; Ziegler, F. ; Bokkers, E.A.M. ; Veldhuizen, L.J.L. ; Boer, I.J.M. de; Donnelly, K. ; Sund, V. ; Krewer, C. - \ 2013
Variability in fuel efficiency of a north east Atlantic demersal trawl fishery (extended abstract)
Groen, E.A. ; Ziegler, F. ; Bokkers, E.A.M. ; Veldhuizen, L.J.L. ; Boer, I.J.M. de; Donnelly, K. ; Sund, V. ; Krewer, C. - \ 2013
The purpose of the study was to better understand the variability in fuel efficiency of a Norwegian freeze trawler targeting cod, haddock, saithe and shrimps. Additional goals were to evaluate whether batch is actually a relevant resolution in LCAs and to increase the knowledge about the reasons behind variability. This was done by collecting daily data on fuel use and production for two years. Fishing trips targeting shrimps were shown to be significantly more fuel intensive than those targeting fish such as cod, haddock and saithe. Other actors explaining the difference between fishing trips were distance from port to fishing location, season, weather. Results can be used for internal improvement and as a basis for a simplified tool for environmental assessment.
WP4: Existing strategies to exchange nutrient between firms
Aladjadjiyan, A. ; Baur, F. ; Buysee, J. ; Gaillard, J. ; Hajdu, Z. ; Jacobsen, B. ; Kay, S. ; Marcovecchio, F. ; Sigurnjak, I. ; Timmerman, M. ; Sleen, J.P. van der; Verhoeven, J.T.W. ; Willeghems, G. ; Ziegler, C. - \ 2013
s.n. - 64 p.
Prioritization of improvements in nutrient management
Aladjadjiyan, A. ; Baur, F. ; Buysee, J. ; Gaillard, J. ; Hajdu, Z. ; Jacobsen, B. ; Kay, S. ; Marcovecchio, F. ; Sigurnjak, I. ; Timmerman, M. ; Sleen, P. Van; Verhoeven, J.T.W. ; Willeghems, G. ; Ziegler, C. - \ 2013
INEMAD - WP3 - P3 - D2 - 64 p.
Entwicklung der Darmflora von Sauen bei wechselnden Fasergehalten in der Ration
Sappok, M.A. ; Perez-Gutierrez, O.N. ; Smidt, H. ; Pellikaan, W.F. ; Verstegen, M.W.A. - \ 2013
In: Tagungsband der 12. wissenschaftstagung okologischer landbau, 5-8 März, Bonn, Deutschland. - Bonn : - p. 602 - 603.
Check title to add to marked list
<< previous | next >>

Show 20 50 100 records per page

 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.