caa a22 4500 445891661 CHVBK 20180317145618.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10750-011-0876-0 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0876-0 Cladoceran assemblages in a karstic lake as indicators of hydrological alterations [Elektronische Daten] [Charo López-Blanco, María Miracle, Eduardo Vicente] The anthropogenic impact on wetlands has increased during the last centuries when infrastructures such as canals or dams, have proliferated. In this article, we have used cladoceran sub-fossils to investigate the effects of a canal on lake El Tobar (Spain). The canal has been transferring water from a reservoir, built in another valley, into this lake since its construction in the mid-1960s. Cladoceran remains were analyzed in two sediment profiles from each of the two sub-basins of the lake. The sedimentary sequences showed that the mentioned human activity provoked a clear shift in the cladoceran community. A PCA was performed with samples from both sub-basins to detect the direction and nature of the changes. Before water transference, the phytophilous chydorid community, represented by Acroperus angustatus in one sub-basin and by both A. angustatus and Graptoleberis testudinaria in the other sub-basin, were well developed. After the construction of the canal and the inflow of additional yet different water from the reservoir, the proportion of chydorids relative to total cladoceran diminished considerably; this was mainly due to the invasion of Bosmina longirostris. These results indicate that the hydrological alteration caused a shift from an oligotrophic, shallower lake with a rich plant-associated cladoceran community to a more eutrophic lake with a predominant planktonic cladoceran community; and that cladoceran remains are a powerful tool to detect hydrological changes and eutrophication. Springer Science+Business Media B.V., 2011 Biological introduction nationallicence Bosmina longirostris nationallicence Cladoceran sub-fossils nationallicence Hydrological alterations nationallicence Lake El Tobar nationallicence López-Blanco Charo Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Valencia, Spain aut Miracle María Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Valencia, Spain aut Vicente Eduardo Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Valencia, Spain aut Hydrobiologia Springer Netherlands 676/1(2011-11-01), 249-261 0018-8158 676:1<249 2011 676 10750 https://doi.org/10.1007/s10750-011-0876-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0876-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- López-Blanco Charo Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Valencia, Spain aut NATIONALLICENCE 700 1- Miracle María Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Valencia, Spain aut NATIONALLICENCE 700 1- Vicente Eduardo Department of Microbiology and Ecology, University of Valencia, 46100 Burjassot, Valencia, Spain aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 676/1(2011-11-01), 249-261 0018-8158 676:1<249 2011 676 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer