First survey of metallic distribution in zooplankton from a south Moroccan area - Université de Bretagne Occidentale Access content directly
Journal Articles Oceanologia Year : 2023

First survey of metallic distribution in zooplankton from a south Moroccan area

Abstract

The Moroccan Southern Atlantic coast is mainly influenced by upwelling, Saharan dust and anthropogenic micropollutant input. These factors contribute to increasing the avail-ability of metal elements in waters. To differentiate human impact from natural variability, knowledge of background concentrations of metals and their fluctuations in bioindicator or-ganisms such as zooplankton is important. This work aims to determine the levels of metals elements (Zn, Mn, Pb, Cu, Cd, Cr, Co, Ni, Li, As, Sr, U, Fe and Ba) in zooplankton along the southern area of the Atlantic coast of Morocco. Zooplankton samples were collected in the summer (July 2013) and autumn (December 2013) at 27 stations from Sidi Ifni to the south of Dakhla. All stations were located on transects perpendicular to the coast. The analysis of metal elements in zooplankton was determined by ICP-MS. The results revealed that in all transects, metal concentrations were below the regulatory limits. Metal enrichments were observed in the south and decreased gradually to the north. This study can be used as baseline data for the metal contents of zooplankton in Moroccan South Atlantic coastal water. A comparison to worldwide reported data on zooplankton did not reveal any suggestions on increased metal presence in the area investigated. (c) 2023 Institute of Oceanology of the Polish Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ).

Domains

Ecotoxicology
Fichier principal
Vignette du fichier
1-s2.0-S0078323423000672-main.pdf (1.43 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-04288439 , version 1 (17-11-2023)

Licence

Attribution - NonCommercial - NoDerivatives

Identifiers

Cite

Fatima Zohra Bouthir, Imane Afandi, Sophia Talba, Maylis Labonne, Hicham Masski, et al.. First survey of metallic distribution in zooplankton from a south Moroccan area. Oceanologia, 2023, 65 (4), pp.612-623. ⟨10.1016/j.oceano.2023.06.009⟩. ⟨hal-04288439⟩
49 View
10 Download

Altmetric

Share

Gmail Facebook X LinkedIn More