@article{fdi:010063272, title = {{C}omparative study of potential transfer of natural and anthropogenic cadmium to plankton communities in the {N}orth-{W}est {A}frican upwelling}, author = {{A}uger, {P}ierre {A}ma{\¨e}l and {M}achu, {E}ric and {G}orgues, {T}. and {G}rima, {N}. and {W}aeles, {M}.}, editor = {}, language = {{ENG}}, abstract = {{A} {L}agrangian approach based on a physical-biogeochemical modeling was used to compare the potential transfer of cadmium ({C}d) from natural and anthropogenic sources to plankton communities ({C}d-uptake) in the {N}orth-{W}est {A}frican upwelling. {I}n this region, coastal upwelling was estimated to be the main natural source of {C}d while the most significant anthropogenic source for marine ecosystem is provided by phosphate industry. {I}n our model experiment, {C}d-uptake (natural or anthropogenic) in the {N}orth-{W}est {A}frican upwelling is the result of an interplay between the {C}d dispersion (by advection processes) and the simulated biological productivity. {I}n the {M}oroccan waters, advection processes limit the residence time of water masses resulting in a low natural {C}d-uptake by plankton communities while anthropogenic {C}d-uptake is high. {A}s expected, the situation is reversed in the {S}enegalo-{M}auritanian upwelling where natural {C}d-uptake is higher than anthropogenic {C}d-uptake. {B}ased upon an estimate of {C}d sources, our modeling study shows, unexpectedly, that the anthropogenic signal of potential {C}d-bioaccumulation in the {M}oroccan upwelling is of the same order of magnitude as the natural signal mainly present in the {S}enegalo-{M}auritanian upwelling region. {A} comparison with observed {C}d levels in mollusk and fishes, which shows overall agreement with our simulations, is confirming our estimates.}, keywords = {{METAL} {LOURD} ; {MILIEU} {MARIN} ; {ZONE} {COTIERE} ; {PLANCTON} ; {ACCUMULATION} ; {POLLUTION} {MARINE} ; {POLLUTION} {CHIMIQUE} ; {PHOSPHATE} ; {MODELISATION} ; {UPWELLING} ; {ADVECTION} {MARINE} ; {DISPERSION} ; {VARIATION} {SAISONNIERE} ; {BIOACCUMULATION} ; {AFRIQUE} {DU} {NORD} ; {MAROC} ; {MAURITANIE} ; {SENEGAL} ; {ATLANTIQUE}}, booktitle = {}, journal = {{S}cience of the {T}otal {E}nvironment}, volume = {505}, numero = {}, pages = {870--888}, ISSN = {1879-1026}, year = {2014}, DOI = {10.1016/j.scitotenv.2014.10.045}, URL = {https://www.documentation.ird.fr/hor/fdi:010063272}, }