The human impact on benthic community structure and dynamics of different ecosystems from Lunca Mureșului Nature Park (West of Romania).
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 1
Abstract
The anthropic impact, which takes various forms, changes the water quality parameters and disturb the living environment of benthic macroinvertebrates. The present study aims to track the way pollution sources influence the macrozoobenthic community. Collecting quantitative samples, at different seasons, from Mureș River and Cărămidăriei Lake, within the area of Lunca Mureșului Nature Park before and after each major pollution source, shows the way pollution affects, both qualitatively and quantitatively, the community of benthic invertebrates. 9 groups of benthic invertebrates were identified, their density, abundance and frequency undergoing changes from one station to another and from one season to another. When the river flows through the park, the benthic community reflects strong water quality degradation of Mureș River. The river, naturally flowing on a long distance allows, through the self-purification process, an improvement in water quality emphasized by the occurrence of some sensitive groups to pollution which disappear completely once the tributary stream Mureșelul and other non-purified waters from the town of Pecica flow into the river. The seasonal dynamics of dominant groups (Oligochaeta, Diptera-Chironomidae) suggests a similarity, recording high values within the autumn-winter time interval.
Authors and Affiliations
Andreea Marin, Mălina Dumbravă-Dodoacă, Milca Petrovici, Gabriel Herlo
Keywords
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