FN Archimer Export Format
PT J
TI Cold-water coral reefs and adjacent sponge grounds: hotspots of benthic respiration and organic carbon cycling in the deep sea
BT 
AF CATHALOT, Cecile
   VAN OEVELEN, Dick
   COX, Tom J.S.
   KUTTI, Tina
   LAVALEYE, Marc S. S.
   DUINEVELD, GCA
   MEYSMAN, Filip J. R.
AS 1:1;2:1;3:1,2;4:3;5:4;6:4;7:1,5;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Department of Ecosystem Studies,Royal Netherlands Institute for Sea Research,Yerseke,Netherlands
   Ecosystem Management Research Group,Universiteit Antwerpen,Wilrijk,Belgium
   Department of Benthic Resources and Processes, Institute of Marine Research,Bergen,Norway
   Department of Marine Ecology, Royal Netherlands Institute for Sea Research, Den Burg,Netherlands
   Laboratory of Analytical,Environmental and Geochemistry,VrijeUniversiteit Brussel,Brussels Belgium
C2 INST SEA RESEARCH (NIOZ), NETHERLANDS
   UNIV ANTWERPEN, BELGIUM
   IMR (BERGEN), NORWAY
   INST SEA RESEARCH (NIOZ), NETHERLANDS
   UNIV VRIJE BRUSSEL, BRUSSELS BELGIUM
IF 5.247
TC 0
UR https://archimer.ifremer.fr/doc/00275/38574/37099.pdf
LA English
DT Article
DE ;deep-seaecosystems;cold-watercorals;sponges;respiration;energyflow
AB Cold-water coral reefs and adjacent sponge grounds are distributed widely in the deep ocean, where only a small fraction of the surface productivity reaches the seafloor as detritus. It remains elusive how these hotspots of biodiversity can thrive in such a food-limited environment, as data on energy flow and organic carbon utilization are critically lacking. Here we report in situ community respiration rates for cold-water coral and sponge ecosystems obtained by the non-invasive aquatic Eddy Correlation technique. Oxygen uptake rates over coral reefs and adjacent sponge grounds in the Træna Coral Field (Norway) were 9–20 times higher than those of the surrounding soft sediments. These high respiration rates indicate strong organic matter consumption, and hence suggest a local focusing onto these ecosystems of the downward flux of organic matter that is exported from the surface ocean. Overall, our results show that coral reefs and adjacent sponge grounds are hotspots of carbon processing in the food-limited deep ocean, and that these deep-sea ecosystems play a more prominent role in marine biogeochemical cycles than previously recognized.
PY 2015
PD JUL
SO Frontiers in Marine Science
SN 2296-7745
PU Frontiers Media S.A
VL 2
IS 37
BP 1
EP 12
DI 10.3389/fmars.2015.00037
ID 38574
ER

EF