Euro-limpacs Deliverables

ABSTRACT - DELIVERABLE 50

Report on existing hydrological, climatological and limnological data in a Danube sub-basin including identification of gaps in the data and new analyses to be undertaken

This deliverable contains a description of existing data, a short assessment of gaps in the data and a description of new work to be undertaken in order to reach the objectives of the Task 4.4. It also contains brief details about models developed for phytoplankton and zooplankton communities and potential developments for the analysis of benthos communities as well as integration of models. A summary of existing data is provided including number of data records, minimum, maximum, average and standard deviation. During the last couple of months the data set on hydrology and climate has been enlarged with daily data describing water level of the Danube River discharge, air temperature and water temperature at the Braila station from 1957 up to 2005. This data set will allow a more accurate analysis of the changes (if any) that have occurred in these parameters during the last 50 years. At the same time it will allow the existing time series from the Lower Danube Wetland System on phytoplankton, zooplankton, benthos and macrophytes to be linked with data concerning these climatic and hydrological parameters in an attempt to distinguish between different drivers of changes and, in particular, to tackle the influence of climate changes on river margin systems. The aims of Task 4.4 are

1. Identification of effects of climate change on the buffering capacity of river marginal wetlands (along the lower stretches of large rivers) ? Case study: Lower Danube Wetland System/ Small Island of Braila;

2. Examination of the relationships between riparian wetlands and adjacent surface waters including identification of gaps and requirements for new information.

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