Szító András: The ecological state of the Tisa river and its tributaries indicated by the macroinvertebrates. In: Ecological aspects of the Tisa River Basin : 10 years anniversary regional conference 21nd - 24th March 2002., Târgu Mureş, Romania 6. pp. 99-147. (2002)
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Abstract
People start to be aware of the possibility to use the tolerant species as environment indicators. Covering up the ccological demand of different species, we would be able to understand more and more from their signals and to use them in qualification of the ecological changes. The ccological qualification may be on a species level only. The upper species categories are not enough for this work. The lack of bcnthic invertebrates may be often due to the lack of the sediment, like in the Upper Tisa Region. The high individual density of a species may be caused by the optimal food source for them, but extraordinary high in hypertrophic situation sometimes. Oligochactc spccics often producc extreme high individual density, but the spccics richncss is rcduccd to one or two spccics only. Limnodrilus hqffmeisteri is the most tolerant spccics in our investigated regions, it is present in hypertrophic relations. The lack of the tolerant indicator species in an ecosystem may indicate continuous or temporary oxygen depletion, moreover high organic material pollution or chemical poisoning. The monitoring data show a temporary picture about the state of the investigated ecosystems. The continuous and complex works may detect and present the ccological changes. Clean water indicator, moderate tolerant and tolerant spccics were identified.
| Item Type: | Book Section |
|---|---|
| Journal or Publication Title: | Ecological aspects of the Tisa River Basin : 10 years anniversary regional conference 21nd - 24th March 2002., Târgu Mureş, Romania |
| Date: | 2002 |
| Number: | 6 |
| ISSN: | 1418-0448 |
| Page Range: | pp. 99-147 |
| Series Name: | Tiscia monograph series |
| Language: | English |
| Related URLs: | http://acta.bibl.u-szeged.hu/38183/ |
| Uncontrolled Keywords: | Tisza - ökológia |
| Additional Information: | Bibliogr.: p. 146-147. ; összefoglalás angol nyelven |
| Subjects: | 01. Natural sciences 01. Natural sciences > 01.05. Earth and related environmental sciences |
| Date Deposited: | 2016. Oct. 15. 12:25 |
| Last Modified: | 2022. Mar. 04. 13:26 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/10262 |
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