The acute toxicity of herbicide roundup ultra in mosquito fish Gambusia affinis

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Research Paper 01/07/2018
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The acute toxicity of herbicide roundup ultra in mosquito fish Gambusia affinis

Adel H. Talib, Abdulmotalib J. AL-Rudainy, Maha A. Gathwan, Baraa M. Thakir, Rana Abdulfattah K
J. Bio. Env. Sci.13( 1), 10-16, July 2018.
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Roundup Ultra it is a general non-selective herbicide were used widely by Iraqi farmers ,we here in determined the median lethal concentration (LC50) of Roundup Ultra herbicide in mosquito fish ( Gambusia affinis) by using several concentrations for studying acute effects of the herbicide (5,8,11,14,17,20,23,26,29,32) mg/l for 72 hours using the automatic transfer method using the SPSS program and using the probite method to assign the LC50 of the pesticide then  recording the behavioral changes that were showed on exposed fish . The results determined the value of LC50 for Roundup Ultra herbicide in mosquito fish was (17.82) mg/l and show that the dead’s fish increased with increasing concentrations. The results show also that behavioral changes as erratic swimming, hyperactivity, loss of equilibrium, increased in speed of gills operculum and touching the aquarium walls, increased with increasing concentrations. Due to the unsafe and excessive use of pesticides in the Iraqi environment, the present research was conducted to detect changes which are caused by the herbicide Roundup Ultra in mosquito fish.


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