Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus
Abstract Bioassays were conducted with technical grade and commercial formulation of cypermethrin using freshwater fish Oreochromis niloticus as the test fish. The technical grade cypermethrin contained 92% active ingredient (a.i.) and the commercial formulation was an emulsified concentrate (EC) co...
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| Format: | Article |
| Language: | English |
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Islamic Azad University
2017-04-01
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| Series: | International Aquatic Research |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40071-017-0161-6 |
| _version_ | 1818575557543067648 |
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| author | Rajib Majumder Anilava Kaviraj |
| author_facet | Rajib Majumder Anilava Kaviraj |
| author_sort | Rajib Majumder |
| collection | DOAJ |
| description | Abstract Bioassays were conducted with technical grade and commercial formulation of cypermethrin using freshwater fish Oreochromis niloticus as the test fish. The technical grade cypermethrin contained 92% active ingredient (a.i.) and the commercial formulation was an emulsified concentrate (EC) containing 10% a.i. (10% EC). Based on the actual concentration in water (2 h), the commercial formulation was found to be more acutely toxic to O. niloticus (96-h LC50 = 4.85 μg/L) than the technical grade cypermethrin (96-h LC50 = 9.74 μg/L). Exposure to sub-lethal concentrations (1.25, 2.5 μg/L) of commercial cypermethrin for 96 h produced stress on the fish, which was evident from the reduction of hepatic glycogen, reduction in the activities of alkaline phosphatase, acetylcholinesterase and catalase in liver and elevation of plasma glucose level and activities of hepatic acid phosphatase, aspartate aminotransferase and alanine aminotransferase. Exposure to these concentrations of cypermethrin for 14–28 days produced anaemia in fish. Long-term exposure (90 days) of the fish to these concentrations reduced the growth and deposition of protein and lipid in the body of fish as compared to control. It is concluded from this study that even minute concentration (1.25 μg/L) of cypermethrin (10% EC) in water can produce stress on fish. Long term exposure to such concentration of cypermethrin may also affect growth of the fish. |
| first_indexed | 2024-12-15T00:42:05Z |
| format | Article |
| id | doaj.art-9aeab42c7a1b4b4e8e9946354c06141d |
| institution | Directory Open Access Journal |
| issn | 2008-4935 2008-6970 |
| language | English |
| last_indexed | 2024-12-15T00:42:05Z |
| publishDate | 2017-04-01 |
| publisher | Islamic Azad University |
| record_format | Article |
| series | International Aquatic Research |
| spelling | doaj.art-9aeab42c7a1b4b4e8e9946354c06141d2022-12-21T22:41:38ZengIslamic Azad UniversityInternational Aquatic Research2008-49352008-69702017-04-019211712810.1007/s40071-017-0161-6Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticusRajib Majumder0Anilava Kaviraj1Department of Zoology, University of KalyaniDepartment of Zoology, University of KalyaniAbstract Bioassays were conducted with technical grade and commercial formulation of cypermethrin using freshwater fish Oreochromis niloticus as the test fish. The technical grade cypermethrin contained 92% active ingredient (a.i.) and the commercial formulation was an emulsified concentrate (EC) containing 10% a.i. (10% EC). Based on the actual concentration in water (2 h), the commercial formulation was found to be more acutely toxic to O. niloticus (96-h LC50 = 4.85 μg/L) than the technical grade cypermethrin (96-h LC50 = 9.74 μg/L). Exposure to sub-lethal concentrations (1.25, 2.5 μg/L) of commercial cypermethrin for 96 h produced stress on the fish, which was evident from the reduction of hepatic glycogen, reduction in the activities of alkaline phosphatase, acetylcholinesterase and catalase in liver and elevation of plasma glucose level and activities of hepatic acid phosphatase, aspartate aminotransferase and alanine aminotransferase. Exposure to these concentrations of cypermethrin for 14–28 days produced anaemia in fish. Long-term exposure (90 days) of the fish to these concentrations reduced the growth and deposition of protein and lipid in the body of fish as compared to control. It is concluded from this study that even minute concentration (1.25 μg/L) of cypermethrin (10% EC) in water can produce stress on fish. Long term exposure to such concentration of cypermethrin may also affect growth of the fish.http://link.springer.com/article/10.1007/s40071-017-0161-6PesticideToxicityTilapiaLC50EnzymesGrowth |
| spellingShingle | Rajib Majumder Anilava Kaviraj Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus International Aquatic Research Pesticide Toxicity Tilapia LC50 Enzymes Growth |
| title | Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus |
| title_full | Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus |
| title_fullStr | Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus |
| title_full_unstemmed | Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus |
| title_short | Cypermethrin induced stress and changes in growth of freshwater fish Oreochromis niloticus |
| title_sort | cypermethrin induced stress and changes in growth of freshwater fish oreochromis niloticus |
| topic | Pesticide Toxicity Tilapia LC50 Enzymes Growth |
| url | http://link.springer.com/article/10.1007/s40071-017-0161-6 |
| work_keys_str_mv | AT rajibmajumder cypermethrininducedstressandchangesingrowthoffreshwaterfishoreochromisniloticus AT anilavakaviraj cypermethrininducedstressandchangesingrowthoffreshwaterfishoreochromisniloticus |