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2,709 Research products, page 1 of 271

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  • Open Access English
    Authors: 
    Erb, Karlheinz; Niedertscheider, Maria; Dietrich, Jan Philipp; Schmitz, Christoph; Verburg, Peter H.; Jepsen, Martin Rudbeck; Haberl, Helmut;
    Publisher: Springer Netherlands
    Project: EC | VOLANTE (265104), EC | LUISE (263522)
  • Open Access
    Authors: 
    Khripounoff, Alexis;
    Publisher: PANGAEA
    Project: EC | HERMIONE (226354)
  • Other research product . Other ORP type . 2020
    Open Access
    Authors: 
    Levin-Koopman, Jason;
    Publisher: Wageningen University & Research
    Project: EC | SIM4NEXUS (689150)

    Baseline data and Impacts of Policy Cards for the for the System Dynamics Model of the European Case Study in Sim4Nexus.

  • Open Access English
    Authors: 
    Christensen, A.; Butenschön, M.; Gürkan, Z.; Allen, I. J.;
    Project: EC | MEECE (212085)

    First results of a coupled modelling and forecasting system for fisheries on habitat-bound stocks are being presented. The system consists currently of three mathematically, fundamentally different model subsystems coupled offline: POLCOMS providing the physical environment implemented in the domain of the north-west European shelf, the SPAM model which describes sandeel stocks in the North Sea, and the third component, the SLAM model, which connects POLCOMS and SPAM by computing the physical–biological interaction. Our major experience by the coupling model subsystems is that well-defined and generic model interfaces are very important for a successful and extendable coupled model framework. The integrated approach, simulating ecosystem dynamics from physics to fish, allows for analysis of the pathways in the ecosystem to investigate the propagation of changes in the ocean climate and to quantify the impacts on the higher trophic level, in this case the sandeel population, demonstrated here on the basis of hindcast data. The coupled forecasting system is tested for some typical scientific questions appearing in spatial fish stock management and marine spatial planning, including determination of local and basin-scale maximum sustainable yield, stock connectivity and source/sink structure. Our presented simulations indicate that sandeel stocks are currently exploited close to the maximum sustainable yield, even though periodic overfishing seems to have occurred, but large uncertainty is associated with determining stock maximum sustainable yield due to stock inherent dynamics and climatic variability. Our statistical ensemble simulations indicates that the predictive horizon set by climate interannual variability is 2–6 yr, after which only an asymptotic probability distribution of stock properties, like biomass, are predictable.

  • Other research product . Other ORP type . 2019
    Open Access
    Authors: 
    Bongiorno, Giulia; Bodenhausen, Natacha; Bünemann, Else K.; Brussaard, Lijbert; Geisen, Stefan; Mäder, Paul; Quist, Casper; Walser, Jean-Claude; de Goede, Ron;
    Publisher: Wageningen University
    Project: EC | iSQAPER (635750)

    Nematodes are abundant and diverse in nearly any soil, and directly and indirectly contribute to important soil functions such as nutrient cycling, decomposition, and pest and pathogen regulation. In addition, nematode communities have been shown to be sensitive to agricultural management such as tillage and organic matter additions. As such, soil nematode are promising indicators for soil quality. Morphological assessment of nematode communities and indices such as the maturity index (MI), enrichment index (EI), structure index (SI) and channel index (CI) have been used for soil quality evaluations. Molecular methods to study community composition and diversity offer advantages compared to traditional methods in terms of cost, time, resolution and throughput. Thus far, the use of molecular data to calculate indices has not received much attention. In the present study we used molecular methods to: i) assess the effects of soil management on nematode qPCR counts, alpha- and beta- diversity, and food web indices; ii) identify nematode taxa specific to certain soil management, and iii) investigate the relationship between nematode community parameters with soil chemical, physical and biological parameters. We assessed nematodes communities with metabarcoding in 10 European long-term field experiments to study the effect of tillage (conventional vs reduced) and organic matter addition (low vs high).

  • Open Access English
    Authors: 
    Per Hall;
    Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
    Project: EC | HYPOX (226213)
  • Open Access
    Authors: 
    Soltwedel, Thomas; Schewe, Ingo;
    Publisher: PANGAEA
    Project: EC | HERMIONE (226354), EC | HYPOX (226213)
  • Open Access
    Authors: 
    Boetius, Antje;
    Publisher: PANGAEA
    Project: EC | HERMIONE (226354)
  • Open Access
    Authors: 
    Pérez-Mayol, Silvia; Morales-Nin, Beatriz; Álvarez-Ellacuria, Itziar; Riera-Batle, Inmaculada; Grau, Amàlia; Pastor, Elena; Massutí, Enric;
    Project: EC | MINOUW (634495)

    Póster presentado en el 6th International Otolith Symposium (IOS 2018), celebrado en Keelung (Taiwan) del 15 al 20 abril de 2018. Aphia minuta and Crystallogobius linearis are small-sized neotenic and progenetic species, short lived (<1 year) and are target of a small-scale fishery on the W and central Mediterranean. The fishery operates from December to March in concomitance with their coastal migration and shoaling in winter. The biology of A. minuta was studied on the 90’s[1] whilst nothing is known for C. linearis. Depending of the year the relative abundance of both species in the catches may differ notably with a clear repercussion on the price because C. linearis is less appreciated than A. minuta. The causes of such fluctuations are unknown. No

  • Research data . 2022
    Open Access
    Authors: 
    Aragão, Cláudia; Cabano, Miguel; Colen, Rita; Teodósio, Rita; Gisbert, Enric; Dias, Jorge; Engrola, Sofia;
    Publisher: Zenodo
    Project: FCT | UIDB/04326/2020 (UIDB/04326/2020), EC | MedAID (727315), FCT | UIDP/04326/2020 (UIDP/04326/2020)

    This data set contains the results from a nutritional trial performed at the Centre of Marine Sciences of Algarve (CCMAR, Faro, Portugal) within the framework of WP2 of the MedAID project (Mediterranean Aquaculture Integrated Development, Horizon 2020, GA number 727315). This experiment evaluated the impacts of protein to lipid ratios in low fishmeal/fish oil diets on key performance indicators of gilthead seabream (Sparus aurata, initial weight: 100 g ± 7 g) on-grown during summer temperature conditions. For further information on experimental conditions, please refer to the publication: “Aragão C., Cabano M., Colen R., Teodósio R., Gisbert E., Dias J. and Engrola S., 2022. Modulation of dietary protein to lipid ratios for gilthead seabream on-growing during summer temperature conditions. Aquaculture Reports, 25: 101262. doi:10.1016/j.aqrep.2022.101262”. In addition to properly cite this dataset, it would be appreciated that when using this dataset in a publication the original publication is cited. {"references": ["Arag\u00e3o C., Cabano M., Colen R., Teod\u00f3sio R., Gisbert E., Dias J. and Engrola S., 2022. Modulation of dietary protein to lipid ratios for gilthead seabream on-growing during summer temperature conditions. Aquaculture Reports, 25: 101262. doi:10.1016/j.aqrep.2022.101262."]} Funding: Fundação para a Ciência e Tecnologia (Portugal) project LA/P/0101/2020 and contract DL57/2016/CP1361/CT0033.