Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation
In order to determine copper toxicity (LC50) to a local species (Cnesterodon decemmaculatus) in the South American Pilcomayo River water and evaluate a cross-fish-species extrapolation of Biotic Ligand Model, a 96 h acute copper toxicity test was performed. The dissolved copper concentrations tested...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Toxicology |
| Online Access: | http://dx.doi.org/10.1155/2012/849315 |
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| author | María Victoria Casares Laura I. de Cabo Rafael S. Seoane Oscar E. Natale Milagros Castro Ríos Cristian Weigandt Alicia F. de Iorio |
| author_facet | María Victoria Casares Laura I. de Cabo Rafael S. Seoane Oscar E. Natale Milagros Castro Ríos Cristian Weigandt Alicia F. de Iorio |
| author_sort | María Victoria Casares |
| collection | DOAJ |
| description | In order to determine copper toxicity (LC50) to a local species (Cnesterodon decemmaculatus) in the South American Pilcomayo River water and evaluate a cross-fish-species extrapolation of Biotic Ligand Model, a 96 h acute copper toxicity test was performed. The dissolved copper concentrations tested were 0.05, 0.19, 0.39, 0.61, 0.73, 1.01, and 1.42 mg Cu L-1. The 96 h Cu LC50 calculated was 0.655 mg L-1 (0.823-0.488). 96-h Cu LC50 predicted by BLM for Pimephales promelas was 0.722 mg L-1. Analysis of the inter-seasonal variation of the main water quality parameters indicates that a higher protective effect of calcium, magnesium, sodium, sulphate, and chloride is expected during the dry season. The very high load of total suspended solids in this river might be a key factor in determining copper distribution between solid and solution phases. A cross-fish-species extrapolation of copper BLM is valid within the water quality parameters and experimental conditions of this toxicity test. |
| format | Article |
| id | doaj-art-440f1f47b6d74c239bbaf46482455ca4 |
| institution | Kabale University |
| issn | 1687-8191 1687-8205 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Toxicology |
| spelling | doaj-art-440f1f47b6d74c239bbaf46482455ca42025-02-03T05:59:50ZengWileyJournal of Toxicology1687-81911687-82052012-01-01201210.1155/2012/849315849315Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species ExtrapolationMaría Victoria Casares0Laura I. de Cabo1Rafael S. Seoane2Oscar E. Natale3Milagros Castro Ríos4Cristian Weigandt5Alicia F. de Iorio6Bernardino Rivadavia National Museum of Natural History, Avenida Angel Gallardo 470, C1405DJR Buenos Aires, ArgentinaBernardino Rivadavia National Museum of Natural History, Avenida Angel Gallardo 470, C1405DJR Buenos Aires, ArgentinaNational Water Institute, Autopista Ezeiza-Cañuelas, Tramo Jorge Newbery km 1.62 (1802), Ezeiza, C1004AA1 Buenos Aires, ArgentinaNational Water Institute, Autopista Ezeiza-Cañuelas, Tramo Jorge Newbery km 1.62 (1802), Ezeiza, C1004AA1 Buenos Aires, ArgentinaNational Water Institute, Autopista Ezeiza-Cañuelas, Tramo Jorge Newbery km 1.62 (1802), Ezeiza, C1004AA1 Buenos Aires, ArgentinaFaculty of Agronomy, University of Buenos Aires, Avenida San Martín 4453, C1417DSE Buenos Aires, ArgentinaFaculty of Agronomy, University of Buenos Aires, Avenida San Martín 4453, C1417DSE Buenos Aires, ArgentinaIn order to determine copper toxicity (LC50) to a local species (Cnesterodon decemmaculatus) in the South American Pilcomayo River water and evaluate a cross-fish-species extrapolation of Biotic Ligand Model, a 96 h acute copper toxicity test was performed. The dissolved copper concentrations tested were 0.05, 0.19, 0.39, 0.61, 0.73, 1.01, and 1.42 mg Cu L-1. The 96 h Cu LC50 calculated was 0.655 mg L-1 (0.823-0.488). 96-h Cu LC50 predicted by BLM for Pimephales promelas was 0.722 mg L-1. Analysis of the inter-seasonal variation of the main water quality parameters indicates that a higher protective effect of calcium, magnesium, sodium, sulphate, and chloride is expected during the dry season. The very high load of total suspended solids in this river might be a key factor in determining copper distribution between solid and solution phases. A cross-fish-species extrapolation of copper BLM is valid within the water quality parameters and experimental conditions of this toxicity test.http://dx.doi.org/10.1155/2012/849315 |
| spellingShingle | María Victoria Casares Laura I. de Cabo Rafael S. Seoane Oscar E. Natale Milagros Castro Ríos Cristian Weigandt Alicia F. de Iorio Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation Journal of Toxicology |
| title | Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation |
| title_full | Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation |
| title_fullStr | Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation |
| title_full_unstemmed | Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation |
| title_short | Measured Copper Toxicity to Cnesterodon decemmaculatus (Pisces: Poeciliidae) and Predicted by Biotic Ligand Model in Pilcomayo River Water: A Step for a Cross-Fish-Species Extrapolation |
| title_sort | measured copper toxicity to cnesterodon decemmaculatus pisces poeciliidae and predicted by biotic ligand model in pilcomayo river water a step for a cross fish species extrapolation |
| url | http://dx.doi.org/10.1155/2012/849315 |
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