Comparative Analysis of Heavy Metal Accumulation Pattern and Genotoxicity in Water Fowl
Open Access
- 30 June 2021
- journal article
- Published by CrossLinks International Publishers in MARKHOR (The Journal of Zoology)
Abstract
Waterfowl spend their lives mostly on water bodies include ducks, geese, and swans, also include birds such as coots, grebes, moorhens, shorebirds and seabirds etc. Wetlands in Pakistan offer habitat to a variety of migratory birds. Bird’s diversity facing problems due to loss of natural habitat and hunting causing serious issues to bird’s territories. Objective: To investigate bioaccumulation of heavy metals and genotoxicity in waterfowl. Methods: This study investigated bioaccumulation of heavy metals and genotoxic effects that could result from exposure of waterfowl to heavy metals in the Chenab River, Punjab, Pakistan. The three different species, common teal (Anas crecca), little egret (Egretta garzetta) and mallard (Anas platyrhynchos) were obtained from head Marala, River Chenab. The liver, kidneys, heart, muscle, blood, and feathers of birds were collected for the purpose of determining the presence of heavy metals. The study investigated the most common heavy metals Pb, Cd, Ni, and Cr indicating higher concentrations of heavy metals in blood and feathers from the study site. At study sites Pb Cr, Ni concentrations were high (P ≤ 0.05). Results: The results in the current study revealed metals concentration in different species trend as Anas crecca > Egretta garzetta > Anas platyrhynchos. The deposition of heavy metals in organ trends as Pb>Cr>Ni>Cd. The level of metals in blood trends as Pb>Cr>Ni>Cd. Metal concentrations in feathers trend as Pb>Cr>Ni>Cd. Conclusions: Expression analysis of anti-apoptosis Bcl-2 made for Egretta garzetta and genotoxicity results showed that the effect of metals in study groups found negative for the expression of the Bcl2 gene.Keywords
This publication has 20 references indexed in Scilit:
- Selenium in BirdsPublished by Taylor & Francis Ltd ,2011
- Heavy Metal Distribution in Chicks of Two Heron Species from KoreaArchives of Environmental Contamination and Toxicology, 2007
- Bioaccumulation of Hg, Cu, and Zn in the Azores triple junction hydrothermal vent fields food webChemosphere, 2006
- Glutathione levels and enzyme activity in the tissues of bank vole Clethrionomys glareolus chronically exposed to a mixture of metal contaminantsChemosphere, 2006
- Adsorption of zinc on bed sediment of River Hindon: adsorption models and kineticsJournal of Hazardous Materials, 2004
- Levels of “toxic” and “essential” metals in samples of bovine milk from various dairy farms in Calabria, ItalyEnvironment International, 2004
- Bcl-2 down-regulation causes autophagy in a caspase-independent manner in human leukemic HL60 cellsCell Death & Differentiation, 2000
- A summary of regional water quality for Eastern UK riversScience of The Total Environment, 1997
- Mercury accumulation and excretion in laboratory reared black-headed gullLarus ridibundus chicksArchives of Environmental Contamination and Toxicology, 1991
- Lead, mercury, and cadmium in feathers of tropical terns in Puerto Rico and AustraliaArchives of Environmental Contamination and Toxicology, 1991