Histopathological evaluation of the giant mudskippers (Periophthalmodon schlosseri) liver as a potential pollution bioindicator in Morib, Selangor

Norazman, Ammar (2022) Histopathological evaluation of the giant mudskippers (Periophthalmodon schlosseri) liver as a potential pollution bioindicator in Morib, Selangor. [Project Paper] (Submitted)

Text lp FPV 2022 26.pdf Download (2MB)

Abstract

Giant mudskipper (Periophthalmodon schlosseri) inhabits all intertidal zone levels across peninsular Malaysia. Mudskippers are sensitive to the ambient environment and their mud burrowing lifestyle makes them a good candidate for pollution bioindicator. The purpose of this study is to determine whether the liver of giant mudskippers can be used as an environmental pollution bioindicator in this area. Age groups were compared to relate to the duration of exposure. Five mudskippers (3 juveniles, 2 adults) were caught at Kuala Kelanang, Morib, Selangor using fishing rods. The fish were weighed, euthanized and necropsied. The livers were weighed and gross features were recorded. The livers were fixed in formalin, processed, and stained with H&E staining. The histopathological changes of the liver were evaluated and melanomacrophage centres (MMC) and inflammatory cells infiltration (ICI) were graded. Qualitative analysis of the elements present in the soil and liver samples was done using energy dispersive x-ray (EDX). Necropsy revealed that the liver was pink, bilobed and soft. Histopathological evaluation showed significant difference (p<0.005) in MMC scores between the juvenile and adult group, while there was no significant difference (p>0.005) in ICI. EDX analysis showed absence of elements in the liver except for Aluminium in the soil. In conclusion, we could not conclude the livers as good bioindicators in this study, since no element traces found in the liver and soil, indicating the sampling area was less polluted. Thus, it is suggested to choose the sampling area known to be polluted for comparison.

Item Type:	Project Paper
Faculty:	Faculty of Veterinary Medicine
Depositing User:	Ms. Nordeena Abdul Aziz
Date Deposited:	30 Apr 2024 05:02
Last Modified:	30 Apr 2024 05:02
URI:	http://psaspb.upm.edu.my/id/eprint/1731

Actions (login required)

View Item