Linkages among land-use, water quality, physical habitat conditions and selected macroinevertebrate assemblages of the Hron River (Slovakia)
| Autoři | |
|---|---|
| Rok publikování | 2007 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | Acta Universitatis Carolinae Environmentalica |
| Fakulta / Pracoviště MU | |
| Citace | |
| Obor | Ekologie - společenstva |
| Klíčová slova | river habitat survey; endangered species; Atherix ibis; Aphelocheirus aestivalis; Onychogomphus forcipatus |
| Popis | Fourteen sampling sites belonging to four stream zones (epirhithral, metarhithral, hyporhithral, epipotamal) of the Hron River were investigated. At each site, geomorphological, physical (using the River Habitat Survey), chemical and biological data were collected. In 2003 and 2004, macroinvertebrates were collected in two-month intervals with the exception of three winter months; the River Habitat Survey was carried out during summer 2003 and 2004. A total of 1759 individuals representing 8 Odonata taxa, 3 Heteroptera taxa and 25 Diptera (excl. Chironomidae, Simuliidae) taxa were collected, some of them are endangered (Aphelocheirus aestivalis, Heteroptera; Atherix ibis, Diptera) or vulnerable (Onychogomphus forcipatus, Odonata) in Europe. These species are mostly limited to the lowland part of the Hron River. Canonical Corresponce Analysis based on hydromorphological features and physicochemical variables confirmed that macroinvertebrates of the selected sites correspond with original stream zones in the whole catchment. |
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