FN Archimer Export Format
PT J
TI Distribution of silver in mussels and oysters along the French coasts: Data from the national monitoring program
BT 
AF CHIFFOLEAU, Jean-Francois
   AUGER, Dominique
   ROUX, Nathalie
   ROZUEL, Emmanuelle
   SANTINI, Anne
AS 1:1;2:1;3:1;4:1;5:1;
FF 1:PDG-DOP-DCN-BE-LBCM;2:PDG-DOP-DCN-BE-LBCM;3:;4:PDG-DOP-DCN-BE-LBCM;5:;
C1 IFREMER, Ctr Nantes, Dept DCN, BE, F-44311 Nantes 3, France.
C2 IFREMER, FRANCE
SI NANTES
SE PDG-DOP-DCN-BE-LBCM
IN WOS Ifremer jusqu'en 2018
IF 1.831
TC 20
UR https://archimer.ifremer.fr/doc/2005/publication-2553.pdf
LA English
DT Article
DE ;mollusks;coastal water;silver;Monitoring
AB Distribution and behavior of many trace elements in the aquatic environment has been well characterized, but little is known about silver (Ag) concentrations in coastal waters, even though this element ranks among the most toxic to marine invertebrates (Calabrese et al., 1977 ; Fisher and Hook, 1997 ; Webb and Wood, 1998). Studies conducted by Flegal et al. (1995), River-Duarte et al. (1999), and Ndung'u et al. (2001), provided the first valuable data on Ag distribution in the oceanic environment, indicating that this element is found in very low concentrations in the dissolved phase. However, although silver concentrations in coastal waters do not reach the nanomolar range (Smith and Flegal, 1993 ; Squire et al., 2002), formation of a stable chloro complex enhances bioavailability and toxicity to biota (Luoma et al., 1995). Experimental studies have shown that Ag is toxic to some living organisms at environmentally realistic levels (Bryan and Langston, 1992). Silver found in the aquatic environment mainly originates in effluents from sewage treatment plants (Rozan and Hunter, 2001). Silver can therefore be used as a tracer of wastewater discharges in coastal waters (Martin et al., 1988 ; Sañudo-Wilhelmy and Flegal, 1992), for instance through the use of sentinel organisms, which concentrate bioavailable contaminants in their tissues (Stephenson and Leonard, 1994 ; Jiann and Presley, 1997 ; Riedel et al., 1998 ; Muñoz-Barbosa et al., 2000).  This study concerns biological monitoring as a means of providing a synoptic view of silver contamination in French coastal waters. The National Network for the Observation of Marine Environment Quality (RNO, the French Mussel-Watch) which has been regularly measuring concentrations of various chemical contaminants in oyster and mussel tissues for 25 years (Claisse, 1989), has been monitoring silver levels since 2003. This valuable database including data collected at 80 sampling sites distributed along the French coasts (Fig. 1), is used as a reference to provide the spatial distribution of a given contaminant (Chiffoleau and Bonneau, 1994), identify trends of contamination/decontamination (Chiffoleau et al., 2001), and detect peak concentrations due to accidental events (Chiffoleau et al., 2004). Mussels (Mytilus edulis and Mytilus galloprovincialis) and oysters (Crassostrea gigas) are collected twice a year in February and November. Sample collection (size of samples, size of animals) and treatment (cleaning, depuration, removal of soft parts from the shells, draining, homogenization, and freeze-drying) are performed according to the OSPAR Convention guidelines and the method described by Claisse (1989). 
PY 2005
PD DEC
SO Marine Pollution Bulletin
SN 0025-326X
PU Elsevier
VL 50
IS 12
UT 000234236600040
BP 1719
EP 1723
DI 10.1016/j.marpolbul.2005.09.009
ID 2553
ER

EF