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Danube River

About Danube: The river and its main tributaries connect many European countries

geographical location of the large river

Danube-TeubnerDanube delta, near Tulcea, Romania, 2005:
Meadows and woodland are surrounding the lakes in the delta.
Danube-TeubnerDanube floodplain, near Vienna, Austria, 2008:
A sign that beavers (Castor fiber) were recently at work here.

The second largest river in Europe, the Danube River, connects a large number of countries along its length: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Moldavia, Ukraine and Romania. Other countries connected to the Danube tributaries are Bosnia and Herzegovina, Czech Republic, Slovenia, Montenegro, Switzerland, Italy, Poland, the Republic of Macedonia and Albania. The Danube River, with its tributaries and floodplain systems forms a vital landscape element across many national borders. The Danube River serves as a migration corridor for many plants and animals over long distances in the large Danube River Basin in Europe. Correspondingly an international active member consortium emphasizing diverse aspects of river use and river preservation in the Danube River Basin built the International Commission for the Protection of the Danube River, (ICPDR).

The International Associationof Danube research (IAD) is the scientific network about relating to Danube research founded in 1956 (see further about IAD-history). The elecetd IAD-presidium consists of a president, a vice president an a general secretary are elected at an IAD-General Assembly for a 6-year voting period. The mission statment of the newly elected general secretary in 2018, issues on the rapidely changing Danube River ecosystem over recent decades (R). The IAD bulletin Danube News appears twice a year since 1999. Member country representatives (IAD-MCR) and more than ten expert group leaders who issue on water quality, habitat observation of different biota, nature conservation and sustainable development (IAD-EGL) are building an active network covering the vast majority of Danubian countries joining the IAD for many years. Among other activities as e.g having an observer role in the International Commission for the Protection of the Danube River (ICPDR), IAD organises every second year an international conference. The IAD-conference missions reflect a still ongoing attempt to enhance our understanding for today's changing environment in the Danube River or Danube River Basin. (IAD-conferences).

Studies on algae and other photosynthetic microbes in Danube River  have a long tradition in the history of IAD-conferences from the 1950’s onward. During recent IAD-conferences (IAD conferences 2008-2018), about 12-15% of the presentations of Danube research relates to studies of microbial primary producers floating in the river channel (phytoplankton) or living attached to the river bottom (phytobenthos). These studies describe in detail the frequency distribution of rare and common microbial autotrophs across the Danube River and its tributaries, their response to environmental forces linked to other organisms within the benthic and planktonic community and their use as bioindicators for microhabitat reference conditions. In recent years the wider implication of the response of microbial primary producers to pollution and eutrophication or global climate change has been communicated. situation, quite different from less nutrient rich periods lots of decades before and of recent times.

cited References on this site for Danube River

Teubner K (2018) No doubt about it - the Danube River Ecosystem is changing. (Mission statement by IAD-general secretary) Danube News 38:2. Look-Inside FurtherLink 

Barta V, Janauer GA, Teubner K (2010) Spatial patchiness and similarity of macrophyte assemblages along a cut-off channel of the River Danube in Linz (Austria). In: Proceedings 38th International Conference of IAD, Dresden 2010, Germany, 5 pages Look-Inside FurtherLink 

Strausz V, Janauer GA, Teubner (2006) Predicted changes in macrophyte species composition induced by flooding in a Danube floodplain restoration area in Linz (Upper Austria). In: Proceedings 36th International Conference of IAD. Austrian Committee Danube Research / IAD, Vienna: 428-433. ISBN 13: 978-3-9500723-2-7 Look-Inside FurtherLink