The macrophytes Potamogeton pusillus L. and Myriophyllum aquaticum (Vell.) Verdc. as potential bioindicators of a river contaminated by heavy metals
| Autor: | Alicia Fernández-Cirelli, M. Noelia Cofré, Carlos A. Harguinteguy, M. Luisa Pignata |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Pollution
010504 meteorology & atmospheric sciences media_common.quotation_subject 010501 environmental sciences 01 natural sciences Analytical Chemistry Ciencias Biológicas POLLUTION Aquatic plant HEAVY METALS AQUATIC PLANTS RIVER Water pollution Spectroscopy 0105 earth and related environmental sciences media_common biology Myriophyllum aquaticum BIOACCUMULATION Bioquímica y Biología Molecular biology.organism_classification Macrophyte Environmental chemistry Environmental science Potamogeton pusillus Bioindicator Surface water CIENCIAS NATURALES Y EXACTAS |
| Popis: | To evaluate the Myriophyllum aquaticum and Potamogeton pusillus macrophytes as indicator organisms of heavy metal pollution in biomonitoring studies of the aquatic ecosystem, the aim of this studywas to determine the Co,Cu, Fe, Mn, Ni, Pb and Zn accumulation in leaves of the those species and the possible relationship to water pollution by thesemetals. Surfacewater, sediment and plantswere collected at 10 sampling sites of the Ctalamochitariver (Argentina). Cooper and Pb concentrations exceeded the limits established for the protection of aquatic life defined by Argentina Legislation (Cu: 2.0 μgL−1, Pb: 2.0 μgL−1) and international norms (Cu: 1.6 μgL−1, Pb: 2.5 μgL−1) in surface water, while Cu and Zn exceeded the limit for ecological screening levels (Cu: 31.6 mgkg−1, Zn: 121.0 mgkg−1) in sediment. Heavy metal concentrationswere found to be higher downstream of Río Tercero city in water and sediments samples, probably related to the contribution of pollutants from the effluent discharge of the city. Both species revealed a high capacity to accumulate heavy metals in its tissues, in areas of the river with higher heavy metals values in the abiotic compartments. Particularly, high accumulation of Co, Cu, Ni and Zn in P. pusillus correlatedwith their concentrations in sediments and Co, Cu, Mnand Zn accumulation in M. aquaticum correlated with the concentrations of these metals in water. These macrophytes reflect spatialvariations of metals in water and sediments of the Ctalamochita river; therefore they are of potential use as heavy metal bioindicators of river pollution. Fil: Harguinteguy, Carlos Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Cofré, María Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Fernandez Cirelli, Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Pque. Centenario. Unidad Ejecutora de Investigaciones En Producción Animal. Universidad de Buenos Aires. Facultad de Ciencias Veterinarias. Unidad Ejecutora de Investigaciones En Producción Animal; Argentina Fil: Pignata, Maria Luisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina |
| Databáze: | OpenAIRE |
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