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Benthic Diatom Communities Along pH and TP Gradients in Hungarian and Swedish Streams

Kovács, Csilla and Kahlert, Maria and Padisák, Judit (2006) Benthic Diatom Communities Along pH and TP Gradients in Hungarian and Swedish Streams. Journal of Applied Phycology, 18 (2). pp. 105-117. ISSN 09218971 (print), 1573-5176 (online)

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Abstract

Benthic diatoms are widely used in Europe to assess ecological status of running waters. The aim of this study was to develop models to predict average pH and total phosphorus (TP) for European stream monitoring using combined diatom data-sets from Hungary and Sweden. As first step, the relationship between the measured environmental variables and the distribution of the taxa was checked by classification by using cluster-analysis and CCA. Diatom data separated clearly along the main hydrogeochemical parameters (e.g. alkalinity, pH). Concerning nutrients, TP was the most determinant factor. Predictive value of the TP model (r = 0.96) is high only for the Hungarian data and the pH model (r = 0.97) can be used in both phycogeographical regions.

Item Type: Article
Subjects: Q Science / természettudomány > QD Chemistry / kémia
Q Science / természettudomány > QE Geology / földtudományok > QE02 Geochemistry / geokémia
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: 26 Nov 2012 10:38
Last Modified: 26 Nov 2012 10:38
URI: http://real.mtak.hu/id/eprint/3456

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