caa a22 4500 445892315 CHVBK 20180317145620.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10750-011-0651-2 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0651-2 Spatial distribution patterns of the hyporheic invertebrate communities in a polluted river in Romania [Elektronische Daten] [Oana Moldovan, Erika Levei, Constantin Marin, Manuela Banciu, Horia Banciu, Claudia Pavelescu, Traian Brad, Mirela Cîmpean, Ioana Meleg, Sanda Iepure, Ioan Povară] The purpose of this study was to examine the sensitivity, in a field situation, of the hyporheic fauna to pollution by heavy metals and also to test the use of oxidative stress enzymes produced by this fauna as a sensitive indicator of oxidative stress generated by chemical contamination. This was done by surveying the patterns of distribution, structure, and composition of hyporheic invertebrate communities in one of the most polluted rivers in Romania. Twelve permanent sampling stations with differing water qualities were established along a 180km transect of the Arieş River. Data on hyporheic invertebrate abundance and richness, chemistry of the surface and hyporheic water and interstitial suspended particles were analyzed via multifactorial analyses. In the downstream, more polluted stations, epigean species were less abundant and hyporheic communities, especially macrocrustaceans and oligochetes, became dominant. The higher levels of hyporheic invertebrate biodiversity in the moderately polluted stations compared to highly polluted, and the increase of the number of some hyporheos (especially macrocrustaceans) in the moderately polluted stations, suggested that the hyporheic fauna was more tolerant of heavy metal pollution than the surface water fauna of the area. However, the different richness and abundance of hyporheic fauna in sites of similar water chemistry suggested that additional factors, such as sediment structure are shaping the spatial distribution of hyporheic fauna. Strong correlations between superoxide dismutase (SOD) activity in pooled tissues extracts and some chemical parameters suggest that oxidative stress enzymes may prove to be sensitive indicators of chemical pollution in hyporheic zones. Springer Science+Business Media B.V., 2011 Interstitial fauna nationallicence Crustacea nationallicence Heavy metals nationallicence Oxidative stress enzymes nationallicence Arieş River nationallicence Moldovan Oana "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut Levei Erika National Institute of Research and Development for Optoelectronics, Research Institute for Analytical Instrumentation, Bucharest, Romania aut Marin Constantin "Emil Racovitza” Institute of Speleology, Romanian Academy, Bucureşti, Romania aut Banciu Manuela Faculty of Biology and Geology, "Babeş-Bolyai” University, Cluj-Napoca, Romania aut Banciu Horia Faculty of Biology and Geology, "Babeş-Bolyai” University, Cluj-Napoca, Romania aut Pavelescu Claudia Romanian Waters National Administration, Someş Tisa Division, Cluj-Napoca, Romania aut Brad Traian "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut Cîmpean Mirela Faculty of Biology and Geology, "Babeş-Bolyai” University, Cluj-Napoca, Romania aut Meleg Ioana "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut Iepure Sanda "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut Povară Ioan "Emil Racovitza” Institute of Speleology, Romanian Academy, Bucureşti, Romania aut Hydrobiologia Springer Netherlands 669/1(2011-07-01), 63-82 0018-8158 669:1<63 2011 669 10750 https://doi.org/10.1007/s10750-011-0651-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0651-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Moldovan Oana "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Levei Erika National Institute of Research and Development for Optoelectronics, Research Institute for Analytical Instrumentation, Bucharest, Romania aut NATIONALLICENCE 700 1- Marin Constantin "Emil Racovitza” Institute of Speleology, Romanian Academy, Bucureşti, Romania aut NATIONALLICENCE 700 1- Banciu Manuela Faculty of Biology and Geology, "Babeş-Bolyai” University, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Banciu Horia Faculty of Biology and Geology, "Babeş-Bolyai” University, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Pavelescu Claudia Romanian Waters National Administration, Someş Tisa Division, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Brad Traian "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Cîmpean Mirela Faculty of Biology and Geology, "Babeş-Bolyai” University, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Meleg Ioana "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Iepure Sanda "Emil Racovitza” Institute of Speleology, Romanian Academy, Clinicilor 5, 400006, Cluj-Napoca, Romania aut NATIONALLICENCE 700 1- Povară Ioan "Emil Racovitza” Institute of Speleology, Romanian Academy, Bucureşti, Romania aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 669/1(2011-07-01), 63-82 0018-8158 669:1<63 2011 669 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer