FN Archimer Export Format
PT J
TI Uptake of barium, molybdenum, and lithium and incorporation into scallop shells: Refining proxies for primary production dynamics
BT 
AF Frohlich, Lukas
   Siebert, Valentin
   Huang, Qian
   THEBAULT, Julien
   MORICEAU, Brivaela
   Jochum, Klaus Peter
   Schöne, Bernd R.
AS 1:1;2:2;3:1;4:2;5:4;6:3;7:1;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Institute of Geosciences, University of Mainz, Mainz, Germany
   Univ Brest, CNRS, IRD, Plouzané, France
   Climate Geochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
   Univ Brest, CNRS, IRD, Plouzané, France
C2 UNIV MAINZ, GERMANY
   UBO, FRANCE
   MAX PLANCK INST CHEM, GERMANY
   CNRS, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   copubli-europe
IF 4.5
TC 0
UR https://archimer.ifremer.fr/doc/00856/96768/105329.pdf
   https://archimer.ifremer.fr/doc/00856/96768/105330.docx
LA English
DT Article
BO Albert Lucas
AB Ba/Cashell, Mo/Cashell, and Li/Cashell chronologies of Pecten maximus can provide information on past phytoplankton dynamics. Distinct Ba, Mo, and Li peaks in the shells are associated with algal blooms. This study evaluated the underlying hypothesis that respective element profiles reliably record variations in phytoplankton dynamics occurring within the water column. Therefore, the chemical content of scallops from the Bay of Brest, France, that lived on the sediment surface was compared to conspecific specimens living in a cage above the seafloor and compared with the phytoplankton abundance and the physicochemical properties of the water column. As demonstrated, Ba/Cashell and Mo/Cashell peaks occurred contemporaneously in specimens within the cage and on the sediment, but were higher in the latter. Furthermore, element/Ca peaks agreed with the timing of particulate Ba and Mo enrichments in the seawater. These data support the assumption of a dietary uptake of both elements. Differences in peak heights between shells living in a cage and on the seafloor were controlled by rates of filtration and biomineralization. While the timing and magnitude of Ba/Cashell peaks were linked to Ba-containing diatoms, Mo/Cashell peaks were related to blooms of Mo-enriched dinoflagellate and diatom aggregation events. Two episodes of slight Li enrichment occurred synchronously in cage and sediment shells. Although the exact mechanism causing such Li increases remains unresolved, the findings suggest a link to large diatom blooms or the presence of a specific diatom taxon. This study refines previously hypothesized relationships between trace element enrichments in scallop shells and phytoplankton dynamics. 
PY 2023
PD NOV
SO Limnology And Oceanography
SN 0024-3590
PU ASLO
VL 68
IS 11
UT 001080299600001
BP 2544
EP 2561
DI 10.1002/lno.12440
ID 96768
ER

EF