Serap Saler
Department of Basic Science, Faculty of Fisheries, Frrat University, 23119, Elazrg, Turkey
Naim Saglam
Department of Fisheries, Faculty of Fisheries, Frrat University, 23119, Elazrg, Turkey
ABSTRACT
The purpose of this study was to determine the acute toxicity and effect of malathion on Daphnia magna which was used as test animals. Daphnids were exposed for 96 h to malathion concentrations ranging from 0.001-4 ppm and death daphnids were counted 24, 36, 48, 72 and 96 h later under a stero microscope. The values of lethal concentration (LC10,50,90) and Lethal time (LT10,50,90) associated 95-99% confidence limits were calculated. Mortality rate between each dosages and mortality rate between 24-96 h depended on time were correlated. LC50 values were changed between 0.740-0.015. LT50 values were found between 110 00 -40 24 . Mortality ratios of Daphnia magna treated with malathion during 96 h period was found significant at 95-99% level (p< 0.001-0.005).
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How to cite this article
Serap Saler and Naim Saglam, 2005. Acute Toxicity of Malathion on Daphnia magna Straus, 1820. Journal of Biological Sciences, 5: 297-299.
DOI: 10.3923/jbs.2005.297.299
URL: https://scialert.net/abstract/?doi=jbs.2005.297.299
DOI: 10.3923/jbs.2005.297.299
URL: https://scialert.net/abstract/?doi=jbs.2005.297.299