Malathion is an organophosphate pesticide widely used to control a variety of insects in agriculture. It can reach the aquatic ecosystems affecting non target organisms like fish. The purpose of this study was to determine LC50 of malathion and to investigate the possible protective effects of selenium on malathion-induced toxicity in Nile tilapia. The fish were exposed to sub lethal concentrations of malathion (1/2 and 1/4 LC50) for 15 days, and selenium (5.54 mg/kg of fish weight) was simultaneously administered. Blood and liver samples were collected at the end of the experiment. Biochemical parameters [serum glucose, cortisol, acetylcholinesterase (AchE)], haematological profiles [white blood cells (WBCs), red blood cells (RBCs) counts, haemoglobin (Hb) concentration, haematocrit (Ht) level], and oxidant/antioxidant statuses [lipid peroxidation (LPO) level, superoxide dismutase (SOD), glutathione-S-transferase (GST) and catalase (CAT) activities] were analysed. The findings of the present study revealed that short-term exposure to malathion at sub lethal concentrations induced biochemical and haematological alterations in Oreochromis niloticus and led to oxidative damage. Moreover, the administration of selenium considered as an effective way to counter the toxicity of malathion in tilapia fish.
| Published in |
International Journal of Environmental Monitoring and Analysis (Volume 3, Issue 5-1)
This article belongs to the Special Issue New Horizons in Environmental Science |
| DOI | 10.11648/j.ijema.s.2015030501.15 |
| Page(s) | 30-37 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2015. Published by Science Publishing Group |
Malathion, Oreochromis niloticus, Fish Physiology, Oxidative Stress, Selenium
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APA Style
Heba S. Hamed. (2015). Impact of a Short – Term Malathion Exposure of Nile Tilapia, (Oreochromis niloticus): The Protective Role of Selenium. International Journal of Environmental Monitoring and Analysis, 3(5-1), 30-37. https://doi.org/10.11648/j.ijema.s.2015030501.15
ACS Style
Heba S. Hamed. Impact of a Short – Term Malathion Exposure of Nile Tilapia, (Oreochromis niloticus): The Protective Role of Selenium. Int. J. Environ. Monit. Anal. 2015, 3(5-1), 30-37. doi: 10.11648/j.ijema.s.2015030501.15
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Download@article{10.11648/j.ijema.s.2015030501.15,
author = {Heba S. Hamed},
title = {Impact of a Short – Term Malathion Exposure of Nile Tilapia, (Oreochromis niloticus): The Protective Role of Selenium},
journal = {International Journal of Environmental Monitoring and Analysis},
volume = {3},
number = {5-1},
pages = {30-37},
doi = {10.11648/j.ijema.s.2015030501.15},
url = {https://doi.org/10.11648/j.ijema.s.2015030501.15},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.s.2015030501.15},
abstract = {Malathion is an organophosphate pesticide widely used to control a variety of insects in agriculture. It can reach the aquatic ecosystems affecting non target organisms like fish. The purpose of this study was to determine LC50 of malathion and to investigate the possible protective effects of selenium on malathion-induced toxicity in Nile tilapia. The fish were exposed to sub lethal concentrations of malathion (1/2 and 1/4 LC50) for 15 days, and selenium (5.54 mg/kg of fish weight) was simultaneously administered. Blood and liver samples were collected at the end of the experiment. Biochemical parameters [serum glucose, cortisol, acetylcholinesterase (AchE)], haematological profiles [white blood cells (WBCs), red blood cells (RBCs) counts, haemoglobin (Hb) concentration, haematocrit (Ht) level], and oxidant/antioxidant statuses [lipid peroxidation (LPO) level, superoxide dismutase (SOD), glutathione-S-transferase (GST) and catalase (CAT) activities] were analysed. The findings of the present study revealed that short-term exposure to malathion at sub lethal concentrations induced biochemical and haematological alterations in Oreochromis niloticus and led to oxidative damage. Moreover, the administration of selenium considered as an effective way to counter the toxicity of malathion in tilapia fish.},
year = {2015}
}
TY - JOUR T1 - Impact of a Short – Term Malathion Exposure of Nile Tilapia, (Oreochromis niloticus): The Protective Role of Selenium AU - Heba S. Hamed Y1 - 2015/11/30 PY - 2015 N1 - https://doi.org/10.11648/j.ijema.s.2015030501.15 DO - 10.11648/j.ijema.s.2015030501.15 T2 - International Journal of Environmental Monitoring and Analysis JF - International Journal of Environmental Monitoring and Analysis JO - International Journal of Environmental Monitoring and Analysis SP - 30 EP - 37 PB - Science Publishing Group SN - 2328-7667 UR - https://doi.org/10.11648/j.ijema.s.2015030501.15 AB - Malathion is an organophosphate pesticide widely used to control a variety of insects in agriculture. It can reach the aquatic ecosystems affecting non target organisms like fish. The purpose of this study was to determine LC50 of malathion and to investigate the possible protective effects of selenium on malathion-induced toxicity in Nile tilapia. The fish were exposed to sub lethal concentrations of malathion (1/2 and 1/4 LC50) for 15 days, and selenium (5.54 mg/kg of fish weight) was simultaneously administered. Blood and liver samples were collected at the end of the experiment. Biochemical parameters [serum glucose, cortisol, acetylcholinesterase (AchE)], haematological profiles [white blood cells (WBCs), red blood cells (RBCs) counts, haemoglobin (Hb) concentration, haematocrit (Ht) level], and oxidant/antioxidant statuses [lipid peroxidation (LPO) level, superoxide dismutase (SOD), glutathione-S-transferase (GST) and catalase (CAT) activities] were analysed. The findings of the present study revealed that short-term exposure to malathion at sub lethal concentrations induced biochemical and haematological alterations in Oreochromis niloticus and led to oxidative damage. Moreover, the administration of selenium considered as an effective way to counter the toxicity of malathion in tilapia fish. VL - 3 IS - 5-1 ER -
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