Acute Toxicity of The Herbicide Glyphosate on Daphnia magna

Year 2009, Volume: 15 Issue: 02, 204 - 208, 01.05.2009

Zeynep Sarıgül Süleyman Bekcan

https://doi.org/10.1501/Tarimbil_0000001092

Cited By: 3

Abstract

In this study, median lethal concentrations LC50 of herbicide Roundup, which contains %48 glyphosate ,on Daphnia magna for 24 an 48 hours were determined.The experiment has been conducted with the method of static bioassay on two series, five different concentrations 0.0115; 0.018; 0.021; 0.028; 0.032 and one control group have been used. The period of the experiment is 24 and 48 hours. As to the LC50 values have been calculated with the method of probit analysis. Experimental results showed that; the concentration of the glyphosate which killed 50 % of Daphnia magna was 0.019 mg/L %95 confidence interval=0.012 mg/L–0.024 mg/L for 24 hours, but the the concentration of the glyphosate which killed 50 % of Daphnia magna was 0.012 mg/L %95 confidence interval=0.001 mg/L-0.016 mg/L for 48 hours

Keywords

Daphnia, herbicide, glyphosate, acute toxicity, bioassay

Herbisit Glifosatın Daphnia magna Üzerine Akut Toksisitesi

Abstract

Bu çalışmada, Daphnia magna üzerinde, %48 glifosat içeren Roundup isimli herbisitin, 24 ve 48 saatlik ortalama öldürücü konsantrasyonları LC50 saptanmıştır. Deneme statik biyodeney yöntemi ile 2 seride yürütülmüş, beş farklı konsantrasyon 0,0115; 0,018; 0,021; 0,028; 0,032 ve bir kontrol grubu kullanılmıştır. Deney süresi 24 ve 48 saattir. LC50değerleri probit analiz yöntemine göre hesaplanmıştır. Sonuç olarak glifosatın 24 saatte Daphnia magna’ların % 50’sini öldüren konsantrasyon 0,019 mg/L %95 güven aralığında=0,012 mg/L–0,024 mg/L , 48 saatte % 50’sini öldüren konsantrasyon ise 0,012 mg/L %95 güven aralığında=0,001 mg/L–0,016 mg/L olarak saptanmıştır

Keywords

Daphnia, herbisit, glifosat, akut toksisite, biyodeney

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