Investigation of benthic algal communities, especially diatoms of some Hungarian streams in connection with reference conditions of the water framework directives

É. Ács; K. Szabó; B. Tóth; K. T. Kiss

doi:10.1556/abot.46.2004.3-4.1

Acta Botanica Hungarica

Volume/Issue:: Volume 46: Issue 3-4

Investigation of benthic algal communities, especially diatoms of some Hungarian streams in connection with reference conditions of the water framework directives

Authors:

É. Ács

É. Ács Hungarian Danube Research Station of Hungarian Academy of Sciences H-2131 Göd, Jávorka S. u. 14, Hungary

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K. Szabó

K. Szabó Hungarian Danube Research Station of Hungarian Academy of Sciences H-2131 Göd, Jávorka S. u. 14, Hungary

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B. Tóth

B. Tóth Hungarian Danube Research Station of Hungarian Academy of Sciences H-2131 Göd, Jávorka S. u. 14, Hungary

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, and

K. T. Kiss

K. T. Kiss Hungarian Danube Research Station of Hungarian Academy of Sciences H-2131 Göd, Jávorka S. u. 14, Hungary

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Pages:: 255–278

Online Publication Date:: 22 Jul 2005

Publication Date:: 01 Nov 2004

Article Category:: Journal Article

DOI:: https://doi.org/10.1556/abot.46.2004.3-4.1

Keywords:: Benthic algae; Benthic algae; reference conditions; diatom indices; Water Framework Directive

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Benthic diatom investigations of some Hungarian streams have been carried out in order to find reference sites in assistance to the ecological quality analysis of the different river types according to the Hungarian river typology. On the basis of the coevaluation of biological and chemical parameters, among the investigated streams, some part of Kemence stream seems to be the appropriate reference site for the classification of the highland, siliceous rivers of Hungary. However, further invastigations are needed for the selection of reference sites for the other types of Hungarian river typology. This is the most difficult in the case of lowland rivers, which are exposed to more severe anthropogenic impacts. Important is the question which biological parameters should be investigated and considered when assessing the ecological condition of our waters. In the United States, e.g. the assessment of the relative abundance of Achnanthidium minutissimum is quite widespread (Stevenson and Bahls 1999), the extent of which indicates the level of disturbance. The use of this method is hampered, on one hand, by the fact that A. minutissimum is an early coloniser species which means that if we do not take samples from mature periphyton, we might find it dominant simply because of that, and, on the other hand, that distinguishing between the species varieties is not always unambiguous under light microscope because of its small size, and these can have different ecological needs. It is also recommended to calculate species richness, diversity and evenness (Stevenson and Bahls 1999), but based on our investigations these parameters are not in correlation with water quality. Investigation of other diatom features such as tolerance and sensitivity, some autecological parameters (as it was applied and recommended by Fore and Grafe 2002 for investigating the reaction of diatom associations to anthropogenic disturbances) might also be useful in completing the water quality analysis of rivers, however, these methods need further investigations. Some of the indices (EPI-D, IPS, IBD) calculated with the software Omnidia are suitable for the classification of our rivers, but the investigation of more rivers, flowing through different types of stone are necessary to choose the appropriate indices. The reason for this is that the different indices work with a different register of species and obviously those indices will prove to be suitable the species register of which shows the highest similarity to the diatom associations of the certain water type.

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Acta Botanica Hungarica

Print ISSN:: 0236-6495

Online ISSN:: 1588-2578

Senior editors

Editor(s)-in-Chief: Zoltán BOTTA-DUKÁT
Honorary Editor(s)-in-Chief: Attila BORHIDI

Managing Editors

László LŐKÖS
László PEREGOVITS

Editorial Board

Gy. BORBÉLY (Debrecen)
A. ČARNY (Ljubljana)
A. CSERGŐ (Dublin)
B. CZÚCZ (Paris)
M. HÖHN (Budapest)
K. T. KISS (Budapest)
A. KUZEMKO (Uman)
Z. LOSOSOVÁ (Brno)
I. MÁTHÉ (Szeged)
E. MIHALIK (Szeged)
S. ORBÁN (Eger)
R. PÁL (Butte)
Gy. PINKE (Mosonmagyaróvár)
T. PÓCS (Eger)
K. PRACH (České Budejovice)
E. S. RAUSCHERT (Cleveland)
E. RUPRECHT (Cluj Napoca)
G. SRAMKÓ (Debrecen)
A. T. SZABÓ (Veszprém)
É. SZŐKE (Budapest)
B. TOKARSKA-GUZIK (Katowice)
B. TÓTHMÉRÉSZ (Debrecen)
P. TÖRÖK (Debrecen)

Botta-Dukát, Zoltán
E-mail: botta-dukat.zoltan@okologia.mta.hu

or

Lőkös, László
E-mail: acta@bot.nhmus.hu
Institute: Botanical Department, Hungarian Natural History Museum
Address: Könyves K. krt. 40. H-1097 Budapest, Hungary

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Acta Botanica Hungarica
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