Active avoidance from a crude oil soluble fraction by an Andean paramo copepod

Several oil spills due to ruptures in the pipeline oil systems have occurred at the Andean paramo. A sample of this crude oil was mixed with water from a nearby Andean lagoon and the toxicity of the soluble fraction was assessed through lethal and avoidance assays with a locally occurring copepod (B...

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Veröffentlicht in:Ecotoxicology (London, England). - 1992. - 23(2014), 7 vom: 04. Sept., Seite 1254-9
1. Verfasser: Araújo, Cristiano V M (VerfasserIn)
Weitere Verfasser: Moreira-Santos, Matilde, Sousa, José P, Ochoa-Herrera, Valeria, Encalada, Andrea C, Ribeiro, Rui
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2014
Zugriff auf das übergeordnete Werk:Ecotoxicology (London, England)
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Petroleum Water Pollutants, Chemical
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520 |a Several oil spills due to ruptures in the pipeline oil systems have occurred at the Andean paramo. A sample of this crude oil was mixed with water from a nearby Andean lagoon and the toxicity of the soluble fraction was assessed through lethal and avoidance assays with a locally occurring copepod (Boeckella occidentalis intermedia). The integration of mortality and avoidance aimed at predicting the immediate decline of copepod populations facing an oil leakage. The 24-h median lethal PAH concentration was 42.7 (26.4-91.6) µg L(-1). In the 12-h avoidance assay, 30% avoidance was recorded at the highest PAH concentration (19.4 µg L(-1)). The mortality at this PAH concentration would be of 25% and, thus, the population immediate decline would be of 55%. The inclusion of non-forced exposure testing with the quantification of the avoidance response in environmental risk assessments is, therefore, supported due to underestimation of the lethal assays 
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700 1 |a Moreira-Santos, Matilde  |e verfasserin  |4 aut 
700 1 |a Sousa, José P  |e verfasserin  |4 aut 
700 1 |a Ochoa-Herrera, Valeria  |e verfasserin  |4 aut 
700 1 |a Encalada, Andrea C  |e verfasserin  |4 aut 
700 1 |a Ribeiro, Rui  |e verfasserin  |4 aut 
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