FN Archimer Export Format
PT J
TI Mixotrophy in the deep sea: a dual endosymbiotic hydrothermal mytilid assimilates dissolved and particulate organic matter
BT 
AF RIOU, Virginie
   COLACO, Ana
   BOUILLON, Steven
   KHRIPOUNOFF, Alexis
   DANDO, Paul
   MANGION, Perrine
   CHEVALIER, Emilie
   KORNTHEUER, Michael
   SANTOS, Raphael
   DEHAIRS, Frank
AS 1:1,2;2:1;3:2,5;4:3;5:4;6:2;7:2;8:2;9:1;10:2;
FF 1:;2:;3:;4:PDG-DOP-DCB-EEP-LEP;5:;6:;7:;8:;9:;10:;
C1 IMAR Univ Azores, Dept Oceanog & Fisheries, P-9901862 Horta, Portugal.
   Vrije Univ Brussel, Earth Syst Sci Grp, Dept Analyt & Environm Chem, B-1050 Brussels, Belgium.
   IFREMER, Ctr Brest, DEEP LEP, F-29280 Plouzane, France.
   Marine Biol Assoc UK, Plymouth PL1 2PB, Devon, England.
   Katholieke Univ Leuven, Dept Earth & Environm Sci, B-3001 Heverlee, Belgium.
C2 IMAR UNIV AZORES, PORTUGAL
   UNIV BRUSSEL VRIJE, BELGIUM
   IFREMER, FRANCE
   MBA, UK
   UNIV KATHOLIEKE LEUVEN, BELGIUM
SI BREST
SE PDG-DOP-DCB-EEP-LEP
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 2.483
TC 33
UR https://archimer.ifremer.fr/doc/00005/11589/8230.pdf
LA English
DT Article
CR MOMARETO
BO Pourquoi pas ?
DE ;Bathymodiolus azoricus;Particulate and dissolved material;Nitrogen and carbon assimilation;Deep sea;Hydrothermal vent;Mussel
AB Bathymodiolus azoricus mussels thrive 840 to 2300 m deep at hydrothermal vents of the Azores Triple Junction on the Mid-Atlantic Ridge. Although previous studies have suggested a mixotrophic regime for this species, no analysis has yet yielded direct evidence for the assimilation of particulate material. In the present study, tracer experiments in aquaria with C-13- and N-15-labelled amino acids and marine cyanobacteria demonstrate for the first time the incorporation of dissolved and particulate organic matter in soft tissues of vent mussel. The observation of phytoplanktonic tests in wild mussel stomachs highlights the occurrence of in situ ingestion of sea-surface-derived material. Particulate organic carbon fluxes in sediment traps moored away from direct vent influence are in agreement with carbon export estimates from the surface ocean above the vents attenuated by microbial degradation. Stable isotope composition of trapped organic matter is similar to values published in the literature, but is enriched by +7 parts per thousand in C-13 and +13 parts per thousand in N-15, relative to mussel gill tissue from the Menez Gwen vent. Although this observation suggests a negligible contribution of photosynthetically produced organic matter to the diet of B. azoricus, the tracer experiments demonstrate that active suspension-feeding on particles and dissolved organic matter could contribute to the C and N budget of the mussel and should not be neglected.
PY 2010
PD APR
SO Marine Ecology-progress Series
SN 0171-8630
PU Inter-research
VL 405
UT 000278041300014
BP 187
EP 201
DI 10.3354/meps08515
ID 11589
ER

EF