Nature conservation oriented algal biodiversity monitoring investigations in the main arm and some dead arms of the River Tisza I. Benthic diatoms

Ács, Éva and Szabó-Taylor, Katalin and Kiss, Keve Tihamér (2002) Nature conservation oriented algal biodiversity monitoring investigations in the main arm and some dead arms of the River Tisza I. Benthic diatoms. In: Proceedings of the 34th conference in Tulcea, Romania, 2002. Limnological reports (4). Academiei Romane, Bukarest, pp. 111-120. ISBN 9789732709153

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Abstract

Benthic diatoms started to be studied as part of the Hungarian National Biodiversity Monitoring Programme in some dead-arms within the Pilot Project area in 1996 and continued in 2000-2001. The investigations had a nature conservation oriented biodiversity monitoring focus but besides the diversity of diatom communities, the water quality of the dead-arms was also described on the basis of benthic diatom species composition an relative abundance by using the trophic and saprobic condition scale of Hofmann. A considerable nutrient content was detected in the investigated dead-arms; besides algal blooms and the spreading of macrophytes, benthic diatom investigations always supported this fact. On the basis of a German red list several valuable species were found in the studied dead-arm. This valuable algal flora can only be protected by the conservation of the habitats (dead-arms) and its catchments area.

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