Open AccessEffect of Cypermethrin 25% EC, an Endocrine Disrupting Chemical and pH on Reproductive Health of Puntius javanicus
Author(s) -
Roy Tushar Kanti,
Saha Samir Kumar
Publication year - 2021
Publication title -
international journal of zoological investigations
Language(s) - English
Resource type - Journals
ISSN - 2454-3055
DOI - 10.33745/ijzi.2021.v07i01.018
Subject(s) - cypermethrin , toxicant , ovary , biology , fish <actinopterygii> , endocrine disruptor , pesticide , chemistry , toxicology , toxicity , zoology , endocrinology , endocrine system , hormone , fishery , ecology , organic chemistry
In the present study an attempt has been made to investigate the combined effect of sub-lethal dose ofCypermethrin 25% EC and pH on histoarchitecture of gonads and GnRH hormone of Puntius javanicus. 96h LC50value was determined by method of Karber and it was found to be 3.65 µg/L for Puntius javanicus. Adult fish wereexposed to sub-lethal concentration (0.365 µg/L) of Cypermethrin 25% EC in different pH of water, i.e. pH 5, pH 6,pH 7, pH 8.5 and pH 9.5 for 15 days. Significant histopathological alterations were found in testis and ovary of thefish subjected to sub-lethal concentration of cypermethrin 25% EC. Significant decrease (p?0.001) of GnRHconcentration was recorded in pesticide exposed fishes. Significantly more histopathological alterations of gonadsand decrease of GnRH concentration were recorded when fish were exposed to sub-lethal concentration ofcypermethrin 25% EC in pH 5, pH 6 and pH 9.5, compared to fish exposed to sub-lethal concentration ofcypermethrin 25% EC in pH 7 water. A significant increase of GnRH concentration (p?0.05) was documented infishes exposed to sub-lethal concentration of cypermethrin in pH 8.5, compared to fishes exposed to sub-lethalconcentration of cypermethrin in pH 7 and the concentration is found to be almost equal to the control group (pH 7,without toxicant). At this medium histoarchitecture of testis and ovary retained almost normal histology with leastalterations.