Contamination levels and vertical distribution of trace metals with application of geochemical indices in the sediment cores of the Bizerte Lagoon-Ichkeul lake complex in northeastern Tunisia

Brik, Bochra; Aydi, Abdelwaheb; Riahi, Chadia; Sdiri, Ali; Regaya, Kamel

doi:10.1007/s12517-017-3382-5

Cited by 10 publications

(3 citation statements)

References 45 publications

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“…This trend could be justified either by the fact that essential elements like Zn and Fe are fundamental for most living organism's physiological processes (spermatogenesis, enzymatic activity etc.) (Pinta 1980;Yamaguchi et al 2009) or either by their bioavailability in the surface sediments of Bizerte lagoon as reported by Zaaboub et al (2015) and Brik et al (2018). Positive and significant correlations (p < 0.05) between TE concentrations in A. noae were observed (Table 2).…”

Section: Discussionmentioning

confidence: 57%

Trace elements and oxidative stress in the Ark shell Arca noae from a Mediterranean coastal lagoon (Bizerte lagoon, Tunisia): are there health risks associated with their consumption?

Ghribi

Richir

Bejaoui

et al. 2020

Environ Sci Pollut Res

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The current study examined the concentrations of ten trace elements (TE) (nickel, chromium, cadmium, iron, zinc, manganese, aluminum, copper, selenium and lead) in the edible tissue of the Ark shell Arca noae (L. 1758) from a Mediterranean coastal lagoon, the Bizerte lagoon during 2013-2014. The analysis of several redox status biomarkers, metallothioneins (MTs), malondialdehyde (MDA), glutathione peroxidase (GPx), reduced glutathione (GSH) and acetylcholinesterase (AChE), was monitored as a response to TE bioaccumulation and environmental parameters variability. Significant differences (p < 0.05) were observed between mean seasonal TE concentrations in A. noae soft tissue. The highest TE concentrations in A. noae soft tissues were recorded during summer, which coincided with the increase of body dry weight (BDW) and the gonad index (GI). During this season, biomarker responses were enhanced, revealing significant increases of MTs, MDA and GSH levels as well as GPx activity in A. noae tissues, while a decrease of AChE activity was observed. The levels of TE analyzed in A. noae and several parameters used to assess the potential human risk (estimated weekly intake, target hazard quotient and target hazard risk) were lower than the permissible limits for safe seafood consumption. Consequently, this shellfish can be considered safe for human consumption. This preliminary study presents prospects for the valorization of this seafood product in Tunisia's food sector. It also gives basal information for future environmental assessment studies in which A. noae could be used as early warning tools in the field of biomonitoring programs and confirms the usefulness of biomarkers to monitor the health status of aquatic organisms.

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Section: Discussionmentioning

confidence: 57%

Trace elements and oxidative stress in the Ark shell Arca noae from a Mediterranean coastal lagoon (Bizerte lagoon, Tunisia): are there health risks associated with their consumption?

Ghribi

Richir

Bejaoui

et al. 2020

Environ Sci Pollut Res

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“…The trace elements follow an almost similar sequence regardless of the environmental matrices studied, although there are some notable differences. Fe is the predominant trace element resulting from its essential character (Phillips and Rainbow, 1989;Lohan and Tagliabue, 2018) or from the contamination of the ecosystem as described in the literature (Brik et al, 2018). Fe is an essential trace element playing a major role for many species due to its role in various physiological processes (e.g.…”

Section: Discussionmentioning

confidence: 99%

Assessment of trace element contamination and effects on Paracentrotus lividus using several approaches: Pollution indices, accumulation factors and biochemical tools

Idrissi

Ternengo

Monnier

et al. 2023

Science of The Total Environment

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“…The industrial pollution is resulting from hy-drocarbons and heavy metals [12,[16][17][18][19] which come from about 400 industrial units which were created as early as the 1950s on the shores of Bizerta lagoon. The contents of trace elements in the sediments show an accumulation of Mn, Zn, Pb, Ba, Cr, Cu and Ni [20,21]. According to Béjaoui, et al [4], the most traced elements building up in the sediments of all the area of the lagoon are Pb (35 to 100 mg.kg-1) and Zn (210 to 450 mg.kg-1).…”

Section: Urbanization Impact In Bizerta Lagoonmentioning

confidence: 99%

Review of the Situation of Tunisian Lagoon of Bizerta Using Marine Spatial Planning as a Key to Sustainable Blue Growth

Hamdaoui¹,

Ennouri²,

Fatnassi³

et al. 2022

J Biomed Res Environ Sci

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Bizerta lagoon is an important socio-economic pole in northern Tunisia. Its shores and maritime space host lots of human activities, such as coastal fishing, shellfish farming, maritime traffic, military activity, recreational fishing and nautical sports. These activities cause severe pollution and they result in many anthropogenic disturbances. Naturally, conflicts of interest between the different operators have always existed. However, recently these disagreements, particularly between coastal fishermen and shellfish farmers have degenerated into an act of vandalism in November 2019. Fishermen destroyed all the bivalve farms facilities and productions. This act is the result of the build-up of several factors, notably the spatial interaction between the two activities and the improper practices of the shellfish farmers, which are according to fishermen "the major source of the lagoon pollution". Despite the fact that the Tunisian government has made considerable efforts to solve this issue, mitigate this conflict, and restore shellfish farming activity in the lagoon, this event has had major socio-economical, geo-political, environmental, and technological impacts. Within this framework, the current paper aims to suggest a management plan that should improve the lagoon status and attain the desired sustainable development of all activities. Turning to Marine Spatial Planning (MSP), we propose an Allocated Zone for Aquaculture (AZA), effective governance of the lagoon and fostering of Sustainable Blue Growth (SBG). These proposals are in line with the Tunisian strategies in terms of aquaculture sustainable development, establishment of MSP along the entire Tunisian coastline and the promotion of blue economy. They also meet several sustainable blue development objectives of the United Nations.

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Contamination levels and vertical distribution of trace metals with application of geochemical indices in the sediment cores of the Bizerte Lagoon-Ichkeul lake complex in northeastern Tunisia

Cited by 10 publications

References 45 publications

Trace elements and oxidative stress in the Ark shell Arca noae from a Mediterranean coastal lagoon (Bizerte lagoon, Tunisia): are there health risks associated with their consumption?

Trace elements and oxidative stress in the Ark shell Arca noae from a Mediterranean coastal lagoon (Bizerte lagoon, Tunisia): are there health risks associated with their consumption?

Assessment of trace element contamination and effects on Paracentrotus lividus using several approaches: Pollution indices, accumulation factors and biochemical tools

Review of the Situation of Tunisian Lagoon of Bizerta Using Marine Spatial Planning as a Key to Sustainable Blue Growth

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