The use of benthic macroinvertebrate families for river quality assessment in Lithuania
| Autor: | Giedrė Višinskienė, Rasa Bernotienė |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Pollution
General Immunology and Microbiology Ecology family taxonomic level QH301-705.5 General Neuroscience media_common.quotation_subject Sampling (statistics) Biology General Biochemistry Genetics and Molecular Biology Taxon Benthic zone River quality Taxonomic rank river quality indices Biology (General) General Agricultural and Biological Sciences benthic macroinvertebrates Invertebrate Biotic index media_common |
| Zdroj: | Open Life Sciences, Vol 7, Iss 4, Pp 741-758 (2012) |
| ISSN: | 2391-5412 |
| Popis: | The aim of this study was to evaluate the influence of environmental factors on the distribution of macroinvertebrate taxa in different sized lowland Lithuanian rivers. A secondary aim was to assess ecological river quality and to determine the most suitable biotic index. A final aim was to determine the most appropriate macroinvertebrate families for river quality assessment in Lithuania. Species composition and quantitative characteristics of benthic macroinvertebrate communities have been investigated using standard kick-sampling method by a standard hand net in 24 different river sites in spring. Physical and chemical environmental parameters were measured in the same study site as the macroinvertebrate sampling. A total of 186 taxa representing 66 families or higher taxonomic ranks of benthic macroinvertebrates have been identified. Water temperature and current velocity influenced the highest number of ivestigated families. Seven of the most tolerant and eleven of the most sensitive macroinvertebrate taxa for hydrochemical parameters related with organic pollution were determined. The DSFI method was founded to be the best index for assessment of ecological status for Lithuanian rivers until more accurate estimation method will be created. |
| Databáze: | OpenAIRE |
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