THE STRUCTURE AND DIVERSITY OF CADDISFLIES SPECIES IN THE LOTIC ECOSYSTEMS OF BAZIAŞ-ORŞOVA SECTOR
| Autor: | Mălina PÎRVU, Răzvan-Liviu PÎRVU |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Annals of West University of Timisoara: Series of Biology, Vol 17, Iss 2, Pp 57-66 (2014) |
| ISSN: | 2285-7044 1582-3830 |
| Popis: | Quantitative macrozoobenthic samples were collected seasonally for two years from the main tributaries of the Danube in the Baziaș-Orșova sector. 7 tributaries were investigated in terms of caddisflies species diversity. Laboratory analysis of samples revealed the existence of 15 species of caddisflies (Insecta: Trichoptera). The Hydropsyche and Rhyacophila genus featured the highest number of specie namely three, followed by the rest with one species each. A significantly higher diversity was determined for the sampling sites located upstream for every lotic ecosystem analyzed comparing with the ones located downstream of various anthropogenic factors. The results indicate a different preference of the caddisflies species for the habitat conditions. |
| Databáze: | OpenAIRE |
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