Sampling strategies for phytoplankton investigations in a large river (River Danube, Hungary)

Kiss, Keve Tihamér and Schmidt, A. and Ács, Éva (1996) Sampling strategies for phytoplankton investigations in a large river (River Danube, Hungary). In: Use of algae for monitoring rivers II : proceedings of an international symposium held at the Volksbildungsheim Grillhof, Vill near Innsbruck, 17 - 19 September 1995. STUDIA Studentenförderungs GmbH, Innsbruck, pp. 179-185. ISBN 0395000902


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The results of phytoplankton studies ont he Hungarian stretch of the Danube are analysed with the focus on questions of a sampling frequency. Phytoplankton samples were taken weekly upstream and downstream of Budapest during a long-term project. Six short-term periods were investigated more intensively, with 4-8 samples/day over a 2-4 day period. The qualitative composition of phytoplankton samples were investigated. It is suggested that the sampling frequency should vary during the year in a large eutrophic river like the Danube. It is important to have up-to-date details of water discharge, too. There is a need to know both the present water discharge and the pattern of probable changes int he near future, using forecasts of the water discharge registration service. In mid-winter the sampling frequency can be monthly. Int he adjacent cool seasons, in February-March and in November, sampling shoud be at a 2-3 week frequency. From April to October the frequency can be biweekly in high water periods (during the floods), but we recommend sampling every 7-10 days under low flow conditions. A special „time average” sampling-method is useful int he low water period.

Item Type: Book Section
Subjects: Q Science / természettudomány > QE Geology / földtudományok > QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia
Depositing User: Erika Bilicsi
Date Deposited: 15 Feb 2013 12:53
Last Modified: 15 Feb 2013 12:53

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