Nile tilapia (Oreochromis niloticus) stress response induced by Heavy metals contaminated municipal waste landfill reservoir
Year: 2024
Type: article
Abstract: Objective: This study aims to investigate Nile tilapia (Oreochromis niloticus) stress responses i.e. concentration of C-reactive protein (CRP), cortisol and the alteration of non-specific immunological response (leukocytic differential counts) after cage culture in heavy metal contaminated landfill leachates aquaculture compared with those cultured in unpolluted area. Material and methods: The samples were collected from Khon Kaen municipal waste dump reservoir Kambon village, Khon Kaen. Water quality parameters were evaluated monthly. Concentrations of cadmium (Cd), chromium (Cr), and Lead (Pb) in the water, sediment and O. niloticus’s muscle were determined at the end of the study using induction coupled plasma-optical emission spectrometry (ICP-OES; Optima 8300) Both water and fish muscle heavy metal concentrations were compared to Thailand’s standard limits. Results: The water quality parameters did not exceed standard values while the concentrations of Cr in the water, sediment did exceed Thailand’s standards as well as concentration of Cr in O. niloticus’s muscle were higher than FAO limits, whereas Cd and Pb were undetected. Concentration of CRP, cortisol and neutrophil differential count were significantly higher than normal ranges (P <0.05). Conclusion: We can conclude that heavy metal contamination in landfill leachate were negatively effect on stress and fish health conditions
Source: KKU Veterinary Journal
Institutions: Khon Kaen University, Western University
Language: English
Subfield: Health, Toxicology and Mutagenesis
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7220158355