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:: Volume 11, Issue 44 (2020) ::
joc 2020, 11(44): 70-0 Back to browse issues page
Comparative study of lethal concentration 50 (LC50) of silver nanoparticles and silver nitrate in Caspian Sea gammarus (Pontogammarus maeoticus)
Arezoo Behnezhad, Fatemeh Kardel , Hassan Taghavi Jelodar, Shila Omidzahir
University of Mazandaran , f.kardel@umz.ac.ir
Abstract:   (267 Views)
Silver nanoparticles are widely used in various sciences and industries. Widespread use of silver nanoparticles has caused entrance of it to the aquatic environment through Wastewater, so it is necessary to investigate the effects of silver nanoparticles on various aquatic organisms. The present study investigated the lethal concentration and bioaccumulation of silver nanoparticles and its comparison with silver nitrate in the Caspian Sea gammarus (Pontogammarus maeoticus). For this purpose, the first experiment was performed to determine the range finding test of silver nanoparticles in gammarus. Then, to determine the lethal concentration 50 (LC50), the gammarus were exposed to concentrations of 0, 0.25, 0.5, 1, 2, 4 and 8 mg/L of silver nanoparticles and silver nitrate and their mortality was recorded in 96 hours. Then different lethal concentration were calculated by statistical analysis. The bioaccumulation of silver in each of the silver nanoparticles and silver nitrate treatments was also investigated. In this study, the 96-h LC50 values ​​for silver nanoparticles and silver nitrate were 3.77 and 5.78 mg/l, respectively .The results of this study showed that the LC50 of silver nanoparticles was lower than silver nitrate and the gammarus mortality increased with increasing concentrations of silver nanoparticles and silver nitrate as well as increasing exposure time. 
Keywords: Silver nanoparticles, LC50, Silver Nitrate, Gammarus, Caspian Sea
     
Type of Study: Research | Subject: Marine Biology
Received: 2019/12/19 | Accepted: 2020/12/30 | ePublished: 2020/12/30
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Behnezhad A, Kardel F, Taghavi Jelodar H, Omidzahir S. Comparative study of lethal concentration 50 (LC50) of silver nanoparticles and silver nitrate in Caspian Sea gammarus (Pontogammarus maeoticus). joc. 2020; 11 (44) :70-0
URL: http://joc.inio.ac.ir/article-1-1471-en.html


Volume 11, Issue 44 (2020) Back to browse issues page
نشریه علمی پژوهشی اقیانوس شناسی Journal of Oceanography
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