Acute Sensitivity to Nitokra sp Benthic Copepod to Potassium Dichromate and Ammonia Chloride
DOI:
https://doi.org/10.5132/jbse.2012.01.011Palabras clave:
bioassay, acute sensitivity test, potassium dichromate, ammonium chlorinate, estuarine copepodResumen
The present study assesses acute toxicity of non-ionized ammonia and potassium dichromate using the estuarine benthic copepod Nitokra sp from laboratory cultures. Bioassays with non-ionized ammonia sensitivity were carried out, and the mean. Bioassays with non-ionized ammonia sensitivity were carried out, and the mean of LC(I)50-96h was 1.7 mg.L-1. – LC(I)50-96h was 1.7 mg.L-1. Potassium dichromate was used as reference substance in two distinct periods of exposure and the mean LC(I)50-48h and LC(I)50-96h values were 55.61 mg.L-1and 21.70 mg.L-1, respectively. The organism showed sensitivity to the toxic agents used and good reproducibility of results, indispensable factors for use in ecotoxicological assays.
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Derechos de autor 2012 Ecotoxicology and Environmental Contamination
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