Toxicity of Amoxicillin and Erythromycin to Fish and Mosquitoes

El-Nahhal Yasser, Nabila El-Dahdouh
2015 Ecotoxicology and Environmental contamination  
This study characterized the toxicity of Amoxicillin (AM), Erythromycin (ER) and Endosulfan (EN) to fish and mosquito larvae obtained from a certified fish farm and from Wadi Gaza. The acute toxicity tests were determined by calculating mortality percentage of fish and mosquitoes through a gradient concentration of the tested compounds. Mortality percentage, exposure time, LC 50 and LT 50 were taken as indicators of toxicity. The results showed that AM was the potent compound against fish with
more » ... against fish with LC 50 value lower that EN. Toxicity to fish is in the following order: AM > EN > ER whereas the toxicity to mosquitoes is in the following order: ER > EN > AM. Fish are more sensitive to AM than mosquitoes whereas mosquitoes are more sensitive to ER than fish. The interesting outcome of the study is the calculated LC 50 values are far below the concentration found in different water systems. Mixture toxicity of the tested antibiotics indicates antagonistic effect on both fish and mosquitoes.
doi:10.5132/eec.2015.01.03 fatcat:op4yzktw2vgrdky7z5oly7qsmq