Chloride and sulphate toxicity to Hydropsyche exocellata (Trichoptera, Hydropsychidae): Exploring intraspecific variation and sub-lethal endpoints
| العنوان: | Chloride and sulphate toxicity to Hydropsyche exocellata (Trichoptera, Hydropsychidae): Exploring intraspecific variation and sub-lethal endpoints |
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| المؤلفون: | Melissa Faria, Núria Bonada, Sergio Ponsá, Sandra Brucet, Carlos Barata, Miguel Cañedo-Argüelles, Laia Llenas, Amadeu M.V.M. Soares, Narcís Prat, Miquel Sala, Ignacio Sarasúa |
| المساهمون: | Universitat de Vic - Universitat Central de Catalunya. Centre Tecnològic BETA |
| المصدر: | RIUVic. Repositorio Institucional de la Universidad de Vic instname |
| بيانات النشر: | Elsevier BV, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | 0106 biological sciences, Pollution, Insecta, Environmental Engineering, media_common.quotation_subject, Population, Industrial Waste, STREAMS, Imatges -- Processament, 010501 environmental sciences, 01 natural sciences, Freshwater ecosystem, Intraspecific competition, Caddisfly, Chlorides, Toxicity Tests, Animals, Environmental Chemistry, Aigua dolça, education, Waste Management and Disposal, 0105 earth and related environmental sciences, media_common, education.field_of_study, biology, Sulfates, Ecology, 010604 marine biology & hydrobiology, Aigua -- Salinització, biology.organism_classification, Spain, Larva, Marcadors bioquímics, Bioindicator, Water Pollutants, Chemical, Environmental Monitoring, Hydropsychidae |
| الوصف: | 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. The research leading to these results has received funding from the People Program (Marie Curie Actions) of the Seventh Framework Program of the European Union (FP7/2007–2013) under grant agreement no. 600388 of REA (TECNIOspring Program) and the Agency for Competitiveness and Business of the Government of Catalonia, ACCIÓ. Melissa Faria acknowledges the Portuguese Foundation for Science and Technology Grant SFRH/BPD/78342/2011 (Programme POPH – QREN through the Portuguese Ministry of Education and Science and the European Social Fund; M.F.). |
| وصف الملف: | application/pdf |
| تدمد: | 0048-9697 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e43a0daea274b483716ec2dc10098864 https://doi.org/10.1016/j.scitotenv.2016.05.121 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....e43a0daea274b483716ec2dc10098864 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00489697 |
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