FN Archimer Export Format
PT J
TI On the barium–oxygen consumption relationship in the Mediterranean Sea: implications for mesopelagic marine snow remineralization
BT 
AF Jacquet, Stéphanie HM
   Lefèvre, Dominique
   Tamburini, Christian
   Garel, Marc
   Le Moigne, Frédéric AC
   BHAIRY, Nagib
   Guasco, Sophie
AS 1:1;2:1;3:1;4:1;5:1;6:1;7:1;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Aix Marseille Université, CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO), UM 110, 13288 Marseille, France
C2 UNIV AIX MARSEILLE, FRANCE
SI TOULON
SE CNRS
IN DOAJ
IF 5.092
TC 1
UR https://archimer.ifremer.fr/doc/00648/76038/76959.pdf
   https://archimer.ifremer.fr/doc/00648/76038/83021.pdf
LA English
DT Article
CR BATMAN
   MD 145 / KEOPS
   MD 188 / KEOPS 2
BO L'Europe
   Marion Dufresne
AB n the ocean, remineralization rate associated with sinking particles is a crucial variable. Since the 1990s, particulate biogenic barium (Baxs) has been used as an indicator of carbon remineralization by applying a transfer function relating Baxs to O2 consumption (Dehairs's transfer function, Southern Ocean-based). Here, we tested its validity in the Mediterranean Sea (ANTARES/EMSO-LO) for the first time by investigating connections between Baxs, prokaryotic heterotrophic production (PHP) and oxygen consumption (JO2-Opt; optodes measurement). We show that (1) higher Baxs (409 pM; 100–500 m) occurs in situations where integrated PHP (PHP100/500=0.90) is located deeper, (2) higher Baxs occurs with increasing JO2-Opt, and (3) there is similar magnitude between JO2-Opt (3.14 mmol m−2 d−1; 175–450 m) and JO2-Ba (4.59 mmol m−2 d−1; transfer function). Overall, Baxs, PHP and JO2 relationships follow trends observed earlier in the Southern Ocean. We conclude that such a transfer function could apply in the Mediterranean Sea. 
PY 2021
PD MAR
SO Biogeosciences
SN 1726-4170
PU Copernicus GmbH
VL 18
IS 6
UT 000635417100001
BP 2205
EP 2212
DI 10.5194/bg-18-2205-2021
ID 76038
ER

EF