Research Article

Histopathological Study of Female Striped Gourami (Trichogaster fasciata, Bloch & Schneider, 1801) Gill Exposed to Chlorpyrifos  

Sharmin Sultana Mukti1 , Gias Uddin Ahmed2 , Zoarder Faruque Ahmed1 , Kazir Ahmed Sumon1 , Mst. Kaniz Fatema1
1 Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
2 Department of Aquaculture, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
Author    Correspondence author
International Journal of Aquaculture, 2018, Vol. 8, No. 14   doi: 10.5376/ija.2018.08.0014
Received: 02 Apr., 2018    Accepted: 16 May, 2018    Published: 01 Jun., 2018
© 2018 BioPublisher Publishing Platform
This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Mukti S.S., Ahmed G.U., Ahmed Z.F., Sumon K.A., and Fatema M.K., 2018, Histopathological study of female striped gourami (Trichogaster fasciata, Bloch & Schneider, 1801) gill exposed to chlorpyrifos, International Journal of Aquaculture, 8(14): 104-111 (doi: 10.5376/ija.2018.08.0014)

 

Abstract

Histopathological study was carried out with the gills of female striped gourami (Trichogaster fasciata) exposed to chlorpyrifos 20 EC. The main objective of the present work was to evaluate the effects of chlorpyrifos to observe the histopathological alterations on gills of striped gourami caused by chlorpyrifos toxicity. To conduct the experiment, 15 PVC tanks each containing 300 L water were used. Female fishes were kept in 15 tanks and conditioned for 21 days prior to chlorpyrifos exposure. Five sub-lethal concentrations (0, 15, 50, 150 and 500 μg/L) of chlorpyrifos based on previously estimated LC50 of 880 μg/L were used in this study for 75 days. There were significant changes on gills until 75 days. A number of changes such as hemorrhage, hypertrophy, necrosis, pyknosis, vacuums, splitted gill lamellae and missing of gill lamellae were observed in the gills of striped gourami exposed to chlorpyrifos in T15, T50 and T150 µg/L concentrations. There were notable histopathological changes in T15, T50 and T150 µg/L concentrations in comparison with control group. All the fishes died within 75 days when exposed to 500 µg/L concentration of chlorpyrifos. This investigation sufficiently revealed that chlorpyrifos had adverse effects on the gills of investigated fish. The present research suggested that the use of chlorpyrifos in agriculture should be carried out with a great caution.

Keywords
Striped gourami; Chlorpyrifos; Gill; Pesticide
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International Journal of Aquaculture
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. Sharmin Sultana Mukti
. Gias Uddin Ahmed
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