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dc.contributor.authorQuevedo, Luis
dc.contributor.authorIbáñez, Carles
dc.contributor.authorCaiola, Nuno
dc.contributor.authorCid, Núria
dc.contributor.authorHampel, Henrietta
dc.contributor.otherAgrosistemes i Medi Ambientca
dc.date.accessioned2019-04-26T11:27:44Z
dc.date.available2019-04-26T11:27:44Z
dc.date.issued2018
dc.identifier.citationQuevedo, L., Ibáñez, C., Caiola, N., Cid, N., & Hampel, H. (2018). Impact of a reservoir system on benthic macroinvertebrate and diatom communities of a large Mediterranean river (lower Ebro river, Catalonia, Spain). Limnetica, 37 (2), 209-228. doi:10.23818/limn.37.18ca
dc.identifier.issn0213-8409ca
dc.identifier.urihttp://hdl.handle.net/20.500.12327/370
dc.description.abstractThis study included the main hydrogeomorphic categories of the lower Ebro River and aimed to detect spatial and temporal patterns of macroinvertebrates and diatoms communities inhabiting downstream a reservoir system. We hypothesized that biological communities will reflect a gradient of alteration related to the distance from the impact (i.e., dams). Surveys conducted along five river sections 2 km long integrating different years and seasons were analyzed. Non-metrical Multidimensional Scaling (MDS), Similarity Percentage Analysis (SIMPER) and 1-way Analysis of Similarities (ANOSIM) were performed to assess spatial and temporal differences in community structure. The relationship between biological and environmental data was investigated with BIOENV routine and a Principal Components Analysis (PCA) was also carried out. Significant differences in the composition of the macroinvertebrate community were found between the section closest to reservoirs (E5) and the rest of the study sections; the present community was also very different of that found in previous studies carried out in the 80’s and 90’s. For the case of diatoms, significant differences in community composition were only found between seasons but not between study sections. As well, indices for ecological status assessment based on both macroinvertebrates (IBMWP) and diatoms (IPS) showed lowest scores at section E5, likely caused by the impact of dams. Macroinvertebrates and diatoms responded rather differently to anthropogenic stressors in the lower Ebro River; macroinvertebrates were more sensitive to hydromorphological impacts, while diatoms were more sensitive to water quality alteration.ca
dc.format.extent20ca
dc.language.isoengca
dc.publisherAsociación Ibérica de Limnologiaca
dc.relation.ispartofLimneticaca
dc.rightsAttribution 4.0 Internationalca
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleImpact of a reservoir system on benthic macroinvertebrate and diatom communities of a large Mediterranean river (lower Ebro river, Catalonia, Spain)ca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versionreprintca
dc.embargo.termscapca
dc.relation.projectIDMICINN-FEDER/ /CGL2006-01487/ES/Efectos de la mejora de la calidad del agua y de la alteración del regimen de caudales sobre las comunidades biológicas del tramo final del rio Ebro/ca
dc.subject.udc504ca
dc.identifier.doihttp://doi.org/10.23818/limn.37.18ca
dc.contributor.groupAigües Marines i Continentalsca


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