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Chloride and sulphate toxicity to Hydropsyche exocellata (Trichoptera, Hydropsychidae): Exploring intraspecific variation and sub-lethal endpoints

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dc.contributor Universitat de Vic - Universitat Central de Catalunya. Centre Tecnològic BETA
dc.contributor.author Sala, Miquel
dc.contributor.author Faria, Melissa
dc.contributor.author Sarasúa, Ignacio
dc.contributor.author Barata, Carlos
dc.contributor.author Bonada, Núria
dc.contributor.author Brucet Balmaña, Sandra
dc.contributor.author Llenas, Laia
dc.contributor.author Ponsá, Sergio
dc.contributor.author Prat, Narcís
dc.contributor.author Soares, Amadeu M.V.M.
dc.contributor.author Cañedo-Argüelles, Miguel
dc.date.accessioned 2017-02-14T17:48:53Z
dc.date.available 2017-02-14T17:48:53Z
dc.date.created 2016
dc.date.issued 2016
dc.identifier.citation Sala, M., Faria, M., Sarasua, I., Barata, C., Bonada, N., Brucet, S., et al. (2016). Chloride and sulphate toxicity to hydropsyche exocellata (trichoptera, hydropsychidae): Exploring intraspecific variation and sub-lethal endpoints. Science of the Total Environment, 566, 1032-1041. es
dc.identifier.issn 0048-9697
dc.identifier.uri http://hdl.handle.net/10854/4913
dc.description.abstract The rivers and streams of theworld are becoming saltier due to human activities. In spite of the potential damage that salt pollution can cause on freshwater ecosystems, this is an issue that is currently poorly managed. Herewe explored intraspecific differences in the sensitivity of freshwater fauna to two major ions (Cl− and SO4 2 −) using the net-spinning caddisfly Hydropsyche exocellata Dufour 1841 (Trichoptera, Hydropsychidae) as amodel organism. We exposed H. exocellata to saline solutions (reaching a conductivity of 2.5 mS cm−1) with Cl−:SO4 2− ratios similar to those occurring in effluents coming from the meat, mining and paper industries, which release dissolved salts to rivers and streams in Spain.We used two different populations, coming fromlowand high conductivity streams. To assess toxicity, we measured sub-lethal endpoints: locomotion, symmetry of the food-capturing nets and oxidative stress biomarkers. According to biomarkers and net building, the population historically exposed to lower conductivities (B10) showed higher levels of stress than the population historically exposed to higher conductivities (L102). However, the differences between populations were not strong. For example, net symmetry was lower in the B10 than in the L102 only 48 h after treatment was applied, and biomarkers showed a variety of responses, with no discernable pattern. Also, treatment effects were rather weak, i.e. only some endpoints, and in most cases only in the B10 population, showed a significant response to treatment. The lack of consistent differences between populations and treatments could be related to the high salt tolerance of H. exocellata, since both populations were collected from streams with relatively high conductivities. The sub-lethal effects tested in this study can offer an interesting and promising tool to monitor freshwater salinization by combining physiological and behavioural bioindicators. es
dc.format application/pdf
dc.format.extent 10 p. es
dc.language.iso eng es
dc.publisher Elsevier es
dc.rights Tots els drets reservats es
dc.rights (c) Elsevier
dc.subject.other Aigua dolça es
dc.subject.other Marcadors bioquímics es
dc.subject.other Imatges -- Processament es
dc.subject.other Aigua -- Salinització es
dc.title Chloride and sulphate toxicity to Hydropsyche exocellata (Trichoptera, Hydropsychidae): Exploring intraspecific variation and sub-lethal endpoints es
dc.type info:eu-repo/semantics/article es
dc.identifier.doi https://doi.org/10.1016/j.scitotenv.2016.05.121
dc.rights.accesRights info:eu-repo/semantics/closedAccess es
dc.type.version info:eu-repo/publishedVersion es
dc.indexacio Indexat a WOS/JCR es
dc.indexacio Indexat a SCOPUS es
dc.contribution.funder Ministry of Education and Science
dc.contribution.funder Marie Curie Cancer Care

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