Populational effect of a dithiocarbamate (thiram) fungicide on a freshwater cladocerus Daphnia magna
February 17, 2020
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| Article Title: | Populational effect of a dithiocarbamate (thiram) fungicide on a freshwater cladocerus Daphnia magna |
| Authors: | Belaid C., Sbartai I., Djebar M. R. |
| Affiliation: | Laboratory of Cellular Toxicology, Faculty of Sciences, Department of Biology, University of Badji Mokhtar, Annaba, B.P. 12, Annaba, 23000, Algeria |
| Abstract: | Thiram is considered as a potential risk fungicide, which affects principally environment and aquatic organisms which are the most exposed victims. Literature studies have classified Daphnia magna from the key species as well as the water contamination’s bioindicator. However, very limited studies have been published for treating the effects of thiram on daphnids. The current study aims to analyze the growth, reproduction, and neurotoxicity effects of thiram on Daphnia magna in order to obtain knowledge on the risk involved with the emission of these fungicide into the environment. The results obtained from the acute test after 24h-48h of thiram exposure (0.05- 0.10- 0.25- 0.50mg/L) showed an increase in the rate of immobilization. However, the chronic test of 21 days at lower concertation exposure (0.004- 0.008- 0.016- 0.032 mg/L) revealed a decrease in the different growth and reproductive parameters, this inhibition was confirmed by the results of the monitoring of the AchE activity, which decreases suggesting the thiram neurotoxic effect. thiram was found to be toxic to Daphnia magna as it is proved by standardized tests. |
| Keywords: | Thiram, Daphnia magna, cytotoxicity test, acetylcholine esterase, biomonitoring |
| *Correspondence: | Chahrazad Belaid, Laboratory of Cellular Toxicology, Faculty of Sciences, Department of Biology, University of Badji Mokhtar, Annaba, B.P. 12, Annaba, 23000, Algeria, Tel. +(213)777513247, email: biochahra@hotmail.com |
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