Acute sensitivity to Nitokra sp benthic copepod to potassium dichromate and ammonia chloride | Zendy

E. C. P. M. Sousa | Zendy; L. P. Zaroni | Zendy; Taki Filho | Zendy; L. A. Marconato | Zendy; Aline A. Kirschbaum | Zendy; Marica Gasparro | Zendy

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Acute sensitivity to Nitokra sp benthic copepod to potassium dichromate and ammonia chloride

Author(s) -

E. C. P. M. Sousa,

L. P. Zaroni,

Taki Filho,

L. A. Marconato,

Aline A. Kirschbaum,

Marica Gasparro

Publication year - 2012

Publication title -

ecotoxicology and environmental contamination

Language(s) - English

Resource type - Journals

ISSN - 2317-9643

DOI - 10.5132/jbse.2012.01.011

Subject(s) - potassium dichromate , copepod , potassium , ammonia , potassium permanganate , chemistry , pulp and paper industry , inorganic chemistry , biology , fishery , biochemistry , organic chemistry , engineering , crustacean

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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