Loading…

Assessment of trace metal bioaccumulation in Mytilus galloprovincialis of the central Atlantic ocean after installation of treatment sewage facilities

Mussels (Mytilus galloprovincialis) are vital to Morocco's artisanal fishermen both nutritionally and economically. This study probed the bioaccumulation of trace metals zinc (Zn), cadmium (Cd), copper (Cu), and lead (Pb) in mussels from three sites north of Agadir: Anza, Aourir, and Imouran. A...

Full description

Saved in:
Bibliographic Details
Published in:Chemosphere (Oxford) 2024-01, Vol.348, p.140730-140730, Article 140730
Main Authors: El Mourabit, Youssef, Hasni, Mustapha, Agnaou, Mustapha, Nadir, Maryam, Abou Oualid, Jaouad, Moukrim, Abdellatif, Ait Alla, Aicha
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Mussels (Mytilus galloprovincialis) are vital to Morocco's artisanal fishermen both nutritionally and economically. This study probed the bioaccumulation of trace metals zinc (Zn), cadmium (Cd), copper (Cu), and lead (Pb) in mussels from three sites north of Agadir: Anza, Aourir, and Imouran. Analyzed using atomic absorption techniques across different seasons, findings indicated variable metal concentrations, with Imouran notably presenting the highest, potentially due to influences from the new wastewater plants of Anza and Aourir. While lead was not detected, cadmium, albeit in lower concentrations, posed potential health concerns upon regular consumption. Individual Mean Bioaccumulation Index (IMBI) demonstrated fluctuations, majorly influenced by Zn, Cd, and Cu levels. These trends in IMBI between 2017 and 2018 for Aourir and Imouran hinted at similar environmental impacts or exposure levels. Despite site differences, Metal Pollution Index (MPI) values consistently pointing to analogous potential toxicity due to metal combinations. Intricate relationships between trace metals and their environmental parameters were evident, with multiple linear regression analysis (MLRA) showcasing differing correlations between variables. These results highlight the nuanced interactions between trace metals and bioaccumulation indices, such as MPI and IMBI. In conclusion, the findings accentuate the imperative of regular coastal water quality checks and effective management strategies to curtail pollutant discharges. [Display omitted] •Wastewater releases threaten mussels, especially with trace metals.•Imouran has the highest metal levels, while Anza is known for pollution.•Cadmium, even in small amounts, is concerning when regularly consuming tainted mussels.•IMBI results vary, influenced by Zn, Cd, and Cu.•MPI values, indicating metal toxicity, are consistent across sites.
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2023.140730