Volume 8, Issue 4 (2019)                   JFST 2019, 8(4): 221-228 | Back to browse issues page

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Sadeghi P, toutouni M M, Molaei S. Evaluation of environmental pollution on liver tissue of Pomadasys kaakan and johnii Lutjanus in the Oman Sea. JFST 2019; 8 (4) :221-228
URL: http://jfst.modares.ac.ir/article-6-38865-en.html
1- Assistant professor of marine biology, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran , parvin.sadeghi@gmail.com
2- Assistant professor of marine biology, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
3- MSc student in marine biology, Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran
Abstract:   (2402 Views)
Aims: Histopathological study is one of the most appropriate ways to evaluate the effects of contaminants in aquatic organisms. The aim of this study was to evaluate the histopathological changes and histopathological alternation index (HAI) in liver tissue of Pomadasys kaakan and Lutjanus johnii in the Oman Sea.
Materials & Methods: In this study, 18 number Pomadasys kaakan and Lutjanus johnii were captured from there stations Ramin, Konarak and Haft Tir by gillnet in winter 2016. In order to study the type and severity of tissue lesions, liver tissue of both fish species were performed fixation stages in Bowen's solution, tissue processing in tissue processing device, paraffin impression, tissue sections 4-5 microns thickness with microtome, stained with hematoxylin and eosin.
Findings: Tissue lesions observed in fish livers included hepatocyte vacuolization, enlargement of sinusoid, adipose cell accumulation, blood congestion, nuclear pyknosis, hemorrhage and necrosis. Tissue lesions observed in the liver of both fish species were higher in Haft-Tir station and lower in Ramin station than in other stations. Histopathological alternation index in liver tissue of both fish species were higher in Haft-tire station than in the other two stations.
Conclusion: Due to the high traffic of the Haf-Tir dock and its close proximity to other docks in the area, the accumulation of pollutants at this station is more and to cause more severe tissue lesions in fish.
 
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Article Type: Original Research | Subject: fish and shellfish physiology
Received: 2019/12/9 | Published: 2020/06/21

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