FN Archimer Export Format
PT J
TI Foraminiferal survival after long-term in situ experimentally induced anoxia
BT 
AF LANGLET, Dewi
   GESLIN, E.
   BAAL, C.
   METZGER, E.
   LEJZEROWICZ, F.
   RIEDEL, B.
   ZUSCHIN, M.
   PAWLOWSKI, J.
   STACHOWITSCH, M.
   JORISSEN, F. J.
AS 1:1;2:1;3:2;4:1;5:3;6:4;7:2;8:3;9:4;10:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 Univ Angers, CNRS, UMR6112, LPG BIAF Bioindicateurs Actuels & Fossiles, F-49045 Angers, France.
   Univ Vienna, Dept Palaeontol, A-1090 Vienna, Austria.
   Univ Geneva, Dept Genet & Evolut, CH-1211 Geneva 4, Switzerland.
   Univ Vienna, Dept Limnol & Oceanog, A-1090 Vienna, Austria.
C2 UNIV ANGERS, FRANCE
   UNIV VIENNA, AUSTRIA
   UNIV GENEVA, SWITZERLAND
   UNIV VIENNA, AUSTRIA
IN DOAJ
IF 3.753
TC 62
UR https://archimer.ifremer.fr/doc/00865/97682/106605.pdf
   https://archimer.ifremer.fr/doc/00865/97682/106606.zip
   https://archimer.ifremer.fr/doc/00865/97682/106607.pdf
   https://archimer.ifremer.fr/doc/00865/97682/106608.pdf
LA English
DT Article
AB Anoxia was successfully induced in four benthic chambers installed at 24 m depth on the northern Adriatic seafloor from 9 days to 10 months. To accurately determine whether benthic foraminifera can survive experimentally induced prolonged anoxia, the CellTracker (TM) Green method was applied and calcareous and agglutinated foraminifera were analyzed. Numerous individuals were found living at all sampling times and at all sampling depths (to 5 cm), supported by a ribosomal RNA analysis that revealed that certain benthic foraminifera were active after 10 months of anoxia. The results show that benthic foraminifera can survive up to 10 months of anoxia with co-occurring hydrogen sulfides. However, foraminiferal standing stocks decrease with sampling time in an irregular manner. A large difference in standing stock between two cores sampled under initial conditions indicates the presence of a large spatial heterogeneity of the foraminiferal faunas. An unexpected increase in standing stocks after one month is tentatively interpreted as a reaction to increased food availability due to the massive mortality of infaunal macrofaunal organisms. After this, standing stocks decrease again in cores sampled after 2 months of anoxia to then attain a minimum in the cores sampled after 10 months. We speculate that the trend of overall decrease of standing stocks is not due to the adverse effects of anoxia and hydrogen sulfides but rather due to a continuous diminution of labile organic matter. 
PY 2013
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 10
IS 11
UT 000327814700047
BP 7463
EP 7480
DI 10.5194/bg-10-7463-2013
ID 97682
ER

EF