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Mapping of macrophytes in the Danube catchmant area
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Report on botanical research of the Danube River and tributaries in 1999–2006
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Calendar of action realised in 1999-2006
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1999
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Agreement on co-operation with Prof. Dr. G. Janauer (AUT) and mgr. D. Stetak (HUN)
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| 2000
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June
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Meeting on Danube at 1850 rkm - metodical start of mapping of Old
Danube from 1850 to 1811 rkm. Mapping in oxbows
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July
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Workshop "Macrophytes of the River Danube: a quality element of the Water Framework Directive EU
in Mosonmagyarórvár (HUN)
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August
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Expedition DANUBIUS 2000 - mapping in Danube River at 1811-1708 rkm
Mapping in the Ipeľ River (part Zelené-Pinciná)
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October
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Processing of data and elaboration of results in the University in Vienna
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November
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Preparation of two contributions for publication Large Rivers
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| December
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Final report |
| 2001
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July
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Mapping of macrophytes at left bank of the Hrušovská zdrž Water Reservoir and in the seepage
canal near Hamuljakovo
Mapping of makrophytes on Turiec River
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August
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Participation on expedition of research ship Argus (Wiesbaden - D) under projekct JOINT DANUBE SURVEY
(Internacional Commision for the Protection of the Danube River) from Bratislava to Szob (HUN).
Collection and determination of macrophytes
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September
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Presentation of poster on international conference "Water is Life - Take Care of it" in
Bratislava
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November
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Preparation of two contributions |
| 2002
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February
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Kick-Off Workshop in Mosonmagyarórvár (HUN) - consultation about new project Macrophyte Inventory Danube/Corridor and Catchment (MIDCC). A responsible body is University of Vienna, Department of Ecology and Conservation Biology and financially supported by Federal Ministry for Education, Science and Culture in Austria. Nine countries participate in the project yet www.midcc.at
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April
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Contract between MIDCC and Institute of Botany SAS
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July
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Selection of localities for Project Tisza and training program on the Latorica River
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September
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Field work in the inundation of Danube (Devín-Hrušovská zdrž Reservoir)
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October
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Preliminary report
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| 2003
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February
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Co-ordination Workshop in Mosonmagyarovar - presentation of results and approximation of methods
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May
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Two papers in Archiv f. Hydrobiologie Suppl. Large Rivers 174 No 1-2. with first results from Slovakia
(
http://www.schweizerbart.de/pubs/books/es/archivfhyd-142014701-desc.html)
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July
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Field work in the anabranches system of Danube (1761-1708 rkm) and near Čenkov
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September
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Preliminary Report
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| 2004
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February
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Co-ordination Workshop in Mosonmagyarórvár - presentation of results and plant determination
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April
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Participation on the 35th International conference of Association for Danube Research (IAD) in Novi Sad (SERBIA)
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June
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Participation on the "Measurement uncertainity" course in CILISTOV with internetional attendance (8 countries) (10.-11.6)
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| 2005
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February
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4th Workshop MIDCC in Mosonmagyarorvár - Final report (www.midcc.at)
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June
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Monitoring Klátovské rameno arm after 10 years
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August
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Field work - macrophyte distribution on Hron river
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Construction of the Gabčíkovo
hydropower station caused changes in hydrological regime and created a
new situation in distribution of macrophytes, as well as in vegetation
along both banks. The aim of this study was to map present distribution
of macrophytes along fixed sections and to prepare foundations for
future monitoring. Semi-quantitative values of macrophytes were compared
with abiotic data and some relations between distribution of plants end
ecological situations were observed.
Distribution of macrophytes in Slovak reach of Danube was
mapped in three types of water bodies with different environment and management:
i/ The Old Danube River (1839-1811 rkm)
ii/ the anabranch system
iii/ the seepage canal
Succession and content of
aquatic plants changed in dependence on hydrological regime. Succession of
macrophytes started in the Old Danube. Zannichellia palustris is
the first hydrophyte, which overgrows the riverbed covered by a thin layer
of fine sediment. Temporary denuded pools on flat littoral provided favourable
conditions for succession. Semi-natural anabranch system preserved high biodiversity,
24 species in three backwaters were recorded. Also the new artificial habitat -
seepage canal, is rich in species. Some of rare and endangered species, such as
Groenlandia densa, Hippuris vulgaris, Apium repens and Characeae
found here suitable habitats. The distribution of neophyte Elodea
nuttallii rapidly increased in the Slovak part of Danube flood plain.
The aquatic macrophyte vegetation
along selected part of Ipeľ River and adjacent tributaries situated between
Zelené and Pincina villages was investigated in July and August 2000. In the
88 river sections of various length (2-1000 m; overall length was 14.3 km) all
macrophytes were mapped and their quantitative values using standard Kohler´s
method were estimated. By all section some abiotic data, such as character of
banks and sediment type at the bottom, flow of water, etc. were recorded. The
distribution of plants was related to the abiotic data and 3 types of
floristic-ecological zones were recognised and shortly characterised. The results
will be published in Hrivnák, R., Valachovič, M., Ripka, J., 2001: Relation between
macrophyte vegetation and environmental conditions in the Ipeľ River (Slovakia) -
case study. Arch. F. Hydrobiol., (in press.)
The main objective of the project in future is mapping of macrophyte vegetation
in the Ipeľ River with special attention on water quality in border section. Ipeľ
is a border river between Slovakia and Hungary. Aquatic macrophytes represent there
a good indicator for assessment of quality of water bodies senzu Water Framework
Directive of the European Community. The inventory of macrophytes in Ipeľ River was
studied by standard methods - qualitative and quantitative mapping of aquatic plants in
hard and fast lines (defined stretches). The ecological status of river will be described
and display in maps 1: 25 000 using GIS methods. The monitoring in future can give an
available data for pollution control and for studies on relationship between
environmental parameters and the aquatic vegetation. The realisation of project will
be an example of trans-boundary environmental impact assessment.
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