Influence of age on the bioaccumulation of heavy metals in Apodemus sylvaticus at Merja Zerga lagoon, Morocco

Autor: Faissal Aziz, Abdelaziz Benhoussa, Bouabid Badaoui, Loubna Tifarouine, Mohamed Fekhaoui, Salma Benmokhtar, Hamid Rguibi Idrissi, Abdallah El Abidi, Nawal Hichami
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Saudi Journal of Biological Sciences
Saudi Journal of Biological Sciences, Vol 26, Iss 7, Pp 1682-1688 (2019)
ISSN: 2213-7106
1319-562X
Popis: The influence of age and sex on the bioaccumulation of heavy metals in Apodemus sylvaticus was studied in Merja Zerga lagoon in northern Morocco. Five trace metal elements (Zn, Pb, Cr, Cu and Fe) were quantitatively analyzed by Varian AA 240 atomic absorption spectroscopy with graphite furnace in three organs (Liver, Kidney and Heart) from animals of different age and sex. The maximum metal level of the analyzed samples was recorded in adults and was limited to 46.62 μg/g for Pb and 35.1 μg/g for Cu, while it reached 22.69 μg/g, 7.59 μg/g and 6.78 μg/g for Cr, Zn and Fe, respectively. Highly significant differences were found for bioaccumulation of heavy metals according to animal ages and no significant differences were observed between the two sexes among the studied animals. Our results revealed also the existence of a strong correlation (r > 0.65) between the majority of biometric parameters and the trace element concentrations. In general, we found that age is a critical factor in estimating the level of heavy metal pollution. Other characteristics such as habitat, feeding habits and anti-predator behavior of the species need to be studied. Keywords: Bioaccumulation, Heavy metals, Apodemus sylvaticus, Merja Zerga lagoon
Databáze: OpenAIRE