Measured copper toxicity to Cnesterodon decemmaculatus (Pisces : Poeciliidae) and predicted by biotic ligand model in pilcomayo river wate : 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 96h 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 1.42mg Cu L -1. The 96h Cu LC50 calculated was 0.655mg L -1 (0.823-0.488). 96-h Cu LC50 predicted by BLM for Pimephales promelas was 0.722mg 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.
Main Authors: | Casares, M. V., Cabo, L. I., Seoane, R. S., Natale, O. E., Castro Ríos, M., Weigandt, C., Fabrizio de Iorio, A. |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | CALCIUM, CHLORIDE, COPPER, MAGNESIUM, RIVER WATER, SODIUM, SULFATE, ANALYSIS OF VARIANCE, BIOTIC LIGAND MODEL, CONTROLLED STUDY, FISH, LC 50, NONHUMAN, PIMEPHALES PROMELAS, RIVER, SUSPENDED PARTICULATE MATTER, TOXICITY TESTING, WATER QUALITY, CNESTERODON DECEMMACULATUS, PISCES, POECILIIDAE, |
Online Access: | http://ri.agro.uba.ar/greenstone3/library/collection/arti/document/2012Casares |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
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
by: Casares, María Victoria, et al. -
Intersex and liver alterations induced by long-term sublethal exposure to 17α-ethinylestradiol in adult male Cnesterodon decemmaculatus (Pisces: Poeciliidae)
by: Young, Brian Jonathan, et al.
Published: (2017) -
Estudio de la perturbación del desarrollo sexual de Cnesterodon decemmaculatus (Pisces, Poeciliidae) por compuestos con actividad estrogénica
by: Young, Brian Jonathan
Published: (2019) -
Concentrations of major ions in the stream water of the upper basin of the River Duddon, England, 1972-1974 [Dataset]
by: Carrick, T.R., et al.
Published: (1983) -
Exposición de Cnesterodon decemmaculatus a clorpirifós y glifosato. Efectos sobre la actividad de acetilcolinesterasa (AChE) y variaciones estacionales en la relación dosis-respuesta
by: Bernal Rey, Daissy Lisbeth