Trace Metals in the Mediterranean Sea

2005 ◽  
pp. 151-176 ◽  
Author(s):  
Christophe Migon
Keyword(s):  
Trace Metals ◽  
Mediterranean Sea ◽  
The Mediterranean

scholarly journals Characterising the surface microlayer in the Mediterranean Sea: trace metals concentration and microbial plankton abundance

2019 ◽  
Author(s):  
Antonio Tovar-Sánchez ◽  
Araceli Rodríguez-Romero ◽  
Anja Engel ◽  
Birthe Zäncker ◽  
Franck Fu ◽  
...  
Keyword(s):  
Trace Metals ◽  
Mediterranean Sea ◽  
Surface Waters ◽  
Bacterial Community Composition ◽  
Western Mediterranean ◽  
Surface Microlayer ◽  
Dissolved Metals ◽  
Western Mediterranean Sea ◽  
Sea Surface Microlayer ◽  
The Mediterranean

Abstract. The Sea Surface Microlayer (SML) is known to be enriched in trace metals relative to the underlaying water and to harbor diverse microbial communities (i.e. neuston). However, the processes linking metals and biota in the SML are not yet fully understood. In this study, we analyzed the metal (Cd, Co, Cu, Fe, Ni, Mo, V, Zn and Pb) concentrations in aerosol samples, SML (dissolved and total fractions) and in subsurface waters (SSW; dissolved fraction at ~ 1 m depth) from the Western Mediterranean Sea during a cruise in May–June 2017. The bacterial community composition and abundance in the SML and SSW, and the primary production and Chl-a in the SSW were measured simultaneously at all stations during the cruise. Residence times of particulate metals derived from aerosols deposition ranged from a couple of minutes for Co (2.7 ± 0.9 min; more affected by wind conditions) to a few hours for Cu (3.0 ± 1.9 h). Concentration of most dissolved metals in both, the SML and SSW, were well correlated with the salinity gradient and showed the characteristic eastward increase in surface waters of the Mediterranean Sea (MS). Contrarily, the total fraction of some reactive metals in the SML (i.e. Cu, Fe, Pb and Zn) showed negative trends with salinity, these trends of concentrations seem to be associate to microbial uptake. Our results suggest a toxic effect of Ni on neuston and microbiology community’s abundance of the top meter of the surface waters of the Western Mediterranean Sea.

scholarly journals Wet deposition in the remote western and central Mediterranean as a source of trace metals to surface seawater

2021 ◽  
Author(s):  
Karine Desboeufs ◽  
Franck Fu ◽  
Matthieu Bressac ◽  
Antonio Tovar-Sánchez ◽  
Sylvain Triquet ◽  
...  
Keyword(s):  
Trace Metals ◽  
Mediterranean Sea ◽  
Wet Deposition ◽  
Saharan Dust ◽  
Surface Microlayer ◽  
Dust Deposition ◽  
Central Mediterranean ◽  
Order Of Magnitude ◽  
The Mediterranean ◽  
Atmospheric Inputs

Abstract. This study reports the only recent characterisation of two contrasted wet deposition events collected during the PEACETIME cruise in the Mediterranean open seawater, and their impact on trace metals (TMS) marine stocks. Rain samples were analysed for Al, 12 trace metals (TMs hereafter, including Co, Cd, Cr, Cu, Fe, Mn, Mo, Ni, Pb, Ti, V and Zn) and nutrients (N, P, DOC) concentrations. The first rain sample collected in the Ionian Sea (rain ION) was a wet typical regional background deposition event whereas the second rain collected in the Algerian Basin (rain FAST) was a Saharan dust wet deposition. The concentrations of TMs in the two rain samples were significantly lower compared to concentrations in rains collected at coastal sites reported in the literature, suggesting either less anthropogenic influence in the remote Mediterranean environment, or decreased emissions during the last decades in the Mediterranean Sea. The TMs inventories in the surface microlayer and mixed layer (0–20 m) at ION and FAST stations before and after the events, compared to atmospheric fluxes, showed that the atmospheric inputs were a significant source of particulate TMs for both layers. At the scale of the western and central Mediterranean, the atmospheric inputs were of the same order of magnitude as marine stocks within the ML for dissolved Fe, Co and Zn, underlining the role of the atmosphere in their biogeochemical cycle in the stratified Mediterranean Sea. In case of intense wet dust deposition event, the contribution of atmospheric inputs could be critical for dissolved stocks of the majority of TMs.

scholarly journals Nutrients, trace metals and B-vitamin composition of the Moulouya River: A major North African river discharging into the Mediterranean Sea

2016 ◽  
Vol 176 ◽  
pp. 47-57 ◽  
Author(s):  
Antonio Tovar-Sánchez ◽  
Gotzon Basterretxea ◽  
Mostapha Ben Omar ◽  
Antoni Jordi ◽  
David Sánchez-Quiles ◽  
...  
Keyword(s):  
Trace Metals ◽  
Mediterranean Sea ◽  
North African ◽  
The Mediterranean ◽  
B Vitamin

The role of the Gulf of Cadiz circulation in the redistribution of trace metals between the Atlantic Ocean and the Mediterranean Sea

2020 ◽  
Vol 719 ◽  
pp. 134964 ◽  
Author(s):  
I. Laiz ◽  
S. Plecha ◽  
A. Teles-Machado ◽  
E. González-Ortegón ◽  
D. Sánchez-Quiles ◽  
...  
Keyword(s):  
Trace Metals ◽  
Atlantic Ocean ◽  
Mediterranean Sea ◽  
Gulf Of Cadiz ◽  
Gulf Of Cádiz ◽  
The Mediterranean

Aeromonas dhakensis pneumonia and sepsis in a neonate Risso’s dolphin Grampus griseus from the Mediterranean Sea

2015 ◽  
Vol 116 (1) ◽  
pp. 69-74 ◽  
Author(s):  
L Pérez ◽  
ML Abarca ◽  
F Latif-Eugenín ◽  
R Beaz-Hidalgo ◽  
MJ Figueras ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Grampus Griseus ◽  
The Mediterranean ◽  
Risso's Dolphin
Sign in / Sign up

Export Citation Format

Share Document