July 2014: Final report available!

The final report of the IMPACT project is now available online. Please do not hesitate to contact the project coordinator or project partners for specific questions!

    March 2014: Publication on the use ot catchment properties in species distribution models

    A joint paper of the IMPACT partners from the University of Kiel, colleagues of the Senckenberg Institute, and the Chinese Academy of Science – congratulations!


    10.12.2013: IMPACT E-seminar

    The IMPACT project was presented during an E-seminar organized by CIRF and by the Office International de l’Eau, coordinator of the WaterDiss2.0 project 10.12.2013 from 10:00-12:00.

    03.09.2013: IMPACT stakeholder workshop

    The modelling approach and results of the IMPACT project in the Treene catchment were presented and disussed with stakholders.

    June 2013: Publication on the fish dispersal model FIDIMO

    The GIS based fish dispersal model FIDIMO, which was developed by Johannes Radinger in the IMPACT project, is described in this paper – congratulations!


    June 2013: Publication on a combinded genetic and demographic approach for conservation planning of threatend fish species

    Demographic and genetic data were used to identify fish populations with a high extinction risk – congratulations!


    01.-05.07.2013: IMPACT presentations at SEFS conference

    The modelling approach and results of the IMPACT project were presented at the international SEFS conference 01.-05.07. in Münster (Germany).

    30.05.2013: Publication on asymmetric gene flow which is of interest for fish dispersal

    The authors compared modelled and empirical genetic data to assess how sensitive different methods are to asymmetric gene flow (movement of fish biased up- or downstream) – congratulations!


    02.-03.05.2013: IMPACT workshop in Essen

    IMPACT partners met for a project workshop at the University of Essen.

    06.03.2013: FISHMOVE available – R package to assess movement distances for fish

    An R package was developed based on the literature review to assess the movement distances of fish for dispersal modelling and other applications.


    04.03.2013: Publication of review on dispersal abilities of fish

    The results of a literature review of Johannes Radinger and Christian Wolter on dispersal abilities of fish has been published – congratulations!


    21.02.2013: Publication on the sensitivity of hydrological modelling in the Treene study catchment

    The results of a sensitivity analysis of the hydrological model in the Treene study catchment has been published – congratulations!


    11.02.2013: Publication on substrate preferences of invertebrates

    The substrate preferences of invertebrates was analysed using a large dataset of sand-bed and gravel-bed rivers and published – congratulations!


    21.-25.01.2013: Flow in the Quarteira river – IMPACT strikes Climate Change! – Successful field campaign

    After we had to postpone the field campaign at the Quarteira from winter 11/12 to 12/13, we successfully mapped the study reach in our third study catchment.
    Impact Quarteira wet period



    05.11.2012: Presentation on IMPACT at WaterDiss2.0 workshop

    The modelling approach of IMPACT was presented at a stakeholder workshop of the EU-funded project WaterDiss2.0:


    16.-17.10.2012: Faro workshop

    IMPACT partners met for the fourth project workshop at the University of Algarve in Faro.
    The results of the climate change scenario for our first catchment – the Treene river – are now available. Based on the general climate change scenarios for Northern Germany (small changes of the total precipitation amount but larger variability) we expected more frequent high flow and channel forming events. Very interesting to see that:

    • high and channel forming discharges will rather decrease than increase, and based on the models for channel geometry developed in IMPACT, we do not expect a large effect on channel geometry (cross-section width and depth),
    • summer low flows show the largest changes and significantly decrease, which also affects flow velocity and depth as well as habitat conditions and weighted usable area for fish (according to the hydrodynamic and habitat models).


    24.09.2012: IMPACT presentations at annual conference of DGL

    IMPACT partners gave three presentations at the annuel conference of the German Limnologial Society (DGL) in Koblenz:

    • Mieter für frisch renovierte Wohnung gesucht – Modellierungsansatz zur Prognose der Habitatbedingungen und Besiedlung (renaturierter) Gewässerabschnitte
    • Identifizierung von Quellpopulationen in Fließgewässern: Entwicklung eines Verbreitungsmodells für ausgewählte Fließgewässerorganismen in einem deutschen Tieflandgewässer (Treene) und Vergleich mit aktuellen Modellierungsansätzen aus dem Mittelgebirge
    • FIDIMO (Fish Dispersal Model) – Entwicklung eines Modells zur Prognose der Ausbreitung von Fischen in Fließgewässern


    16.-17.04.2012: Essen workshop

    IMPACT partners met for the third project workshop at the University of Essen.
    In summary: Some technical problems but we are progressing well.

    Winter 2011/2012: No flow in the Quarteira river – Climate Change strikes IMPACT?

    Actually, we planned to have our field campaign at the Quarteira river – our third study catchment – in winter 2011/2012. However, there was exceptionally small precipitation and no discharge during the whole winter. So we had to postpone it to the next winter. Climate Change seems to outrun IMPACT.
    Impact Quarteira dry period



    15.-16.09.2011: Toulouse workshop

    Just after the field campaign at the Célé river, IMPACT partners met for a project workshop at the University Paul Sabatier in Toulouse.
    The main issues were:

    • to give progress reports,
    • to discuss the field campaign at the Célé river and planning of the field campaign at the Quarteira river in Portugal,
    • to discuss methods for modelling biota and the final biological assessment (e.g. Bayesian Networks),
    • to discuss how to develop the climate change and land use scenarios.


    28.09.2011: FIDIMO – Fish Dispersal Model developed and software now available!

    The fish dispersal model FIDIMO was developed by Johannes Radinger based on the Open Source GIS GRASS.
    For mor information on the IMPACT website click here or see the FIDIMO Website.

    11.-14.09.2011: Célé field campaign

    At the second field campaign, the study reach at the Célé river (southwestern France) was mapped. Channel bathymetry, flow, and substrate was mapped, invertebrates and fish were sampled. The weather (and water temperature) was splendid, and discharge was high enough for the measurements. Based on these data, a hydrodynamic and morphodynamic models of the 300 m study reach (“receiving reach”) will be set up to describe the present and future habitat conditions and to calibrate the biological models.
    Impact field campaign at the Célé river



    13.04.2011: Stakeholder meeting

    The German IMPACT partners did present the project to the local authorities, who are responsible for water management and the implementation of the EU-Water Framework Directive in the Treene study catchment (Landesamt für Landwirtschaft, Umwelt und ländliche Räume, Schleswig-Holstein).
    The main issues were:

    • to present the project and the modelling approach,
    • to discuss possible synergies and collaboration,
    • to ask for and consider the needs of the water managers, e.g. in respect to the land-use scenarios and model species.


    10.-11.03.2011: Kiel workshop

    Just after the field campaign at the Treene river, IMPACT partners met for a project workshop at the Christian-Albrechts University in Kiel.
    The main issues were:

    • to give progress reports,
    • to discuss the field campaign at the Treene river and planning of the field campaign at the Célé and Quarteira river,
    • to detail the model parameters (including water quality) and the accuracy needed based on the habitat requirements of the model species,
    • to discuss the model interfaces between the abiotic models and to ensure that the habitat data required by the biologists can be delivered by the abiotic models.


    07.-09.03.2011: Treene field campaign

    During the field campaign at one of the study sites (Treene river, northern Germany), the IMPACT partners mapped channel bathymetry, flow, substrate, and took invertebrate samples. The weather and flow conditions were perfect and mapping was finished within three days. Based on these data, a hydrodynamic and morphodynamic models of the 300 m study reach (“receiving reach”) will be set up to describe the present and future habitat conditions and to calibrate the biological models.
    Impact field campaign at the Treene river



    22.02.2011: Habitat and dispersal modelling workshop

    A habitat and dispersal modelling workshop was organized by the IMPACT partners and hosted by the University of Duisburg Essen 16.02.2011. In IMPACT, species distribution models will be used to identify possible source populations in parts of the catchment where no biological data are available. Dispersal models for fish and invertebrates will be developed in IMPACT to assess the species pool available and the time neccessary for re-colonizing a restored river reach, and habitat models to predict the species composition based on the species pool and the habitat characteristics (flow-velocity, -depth, substrate).
    Impact habitat and dispersal workshop
    After presenting the overall and specific objectives of the projects, the participants discussed and identified several possibilites for cooperation as well as synergies. The workshop was well-timed since virtually all projects just started. All participantes agreed and were very interested to further exchange ideas, results, and to cooperate. For example, several participants will work in the same catchment and agreed to harmonize their study designs so that they can exchange and compare data and results.

    Everybody working on species distribution and dispersal model is invited to join this little but vital group at one of the next meetings – just email the IMPACT partners!

    28.12.2010: Habitat and dispersal modelling workshop

    A habitat and dispersal modelling workshop will be held in Essen 16.02.2011. Dispersal models for fish and invertebrates will be developed in IMPACT to assess the species pool available and the time neccessary for re-colonizing a restored river reach. IMPACT project partners are organizing a workshop to present the modelling approaches and to identify possible collaborations and synergies with two other projects at the University of Duisburg Essen and Senckenberg.

    11.10.2010: IMPACT started!

    Impact partners


    A successful and fruitful kick-off meeting was held in Berlin 07.-08.10.2010. The project partners presented their modelling approaches and discussed model interfaces. Moreover, the consortium started to select near-natural study reaches (“receiving reaches”) and to organize the field campaign.