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The effect of hydro-morphological modifications of streamflow on compositional features of attached diatom assemblages in Hungarian streams

Stenger-Kovács, Csilla and Padisák, Judit and Soróczki-Pintér, Éva and Ács, Éva and Borics, Gábor and Buczkó, Krisztina and Dam, H. van (2006) The effect of hydro-morphological modifications of streamflow on compositional features of attached diatom assemblages in Hungarian streams. In: Program, abstracts & extended abstracts: 6th International Symposium on Use of Algae for monitoring Rivers. Magyar Algológiai Társaság, Göd, pp. 139-145. ISBN 963 06 0497 3

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Abstract

Hydro-morphological modifications have significant effect on the species composition of attached diatom assemblages. The diversity of natural, undisturbed streams is different from that of the hydromorphologically modified (e. g. dammed) water bodies. The proportion of attached against planktonic species indicated very well of the hydromorphological influences (both upstreams and downstreams). In high altitude sampling sites Stephanodiscus minutulus, in middle altitude sampling sites S. hantzschii, S. minutulus and Adlafia minuscula were the indicator species downstream modifications. Gomphonema angustatum was the only significant indicator for the upstream sampling site sin low altitude, medium fine substrata streams. The downstream modifications were signalled by Amphora veneta, Ctenophora pulchella, while lowland damming by Melosira varians and Cocconeis placentula.

Item Type: Book Section
Additional Information: 6th International Symposium on Use of algae for monitoring rivers. Balatonfüred, 2006.09.12-2006.09.16.
Subjects: Q Science / természettudomány > QE Geology / földtudományok > QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
Q Science / természettudomány > QH Natural history / természetrajz > QH301 Biology / biológia
Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia
Depositing User: Erika Bilicsi
Date Deposited: 03 Dec 2012 09:05
Last Modified: 03 Dec 2012 09:05
URI: http://real.mtak.hu/id/eprint/3464

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