FN Archimer Export Format
PT J
TI Community dynamics over a decadal scale at Logatchev, 14 degrees 45 ' N, Mid-Atlantic Ridge
BT 
AF GEBRUK, Andrey
   FABRI, Marie-Claire
   BRIAND, Patrick
   DESBRUYERES, Daniel
AS 1:1;2:2;3:2;4:2;
FF 1:;2:PDG-DOP-LER-LERPAC;3:PDG-DOP-DCB-EEP-LEP;4:PDG-DOP-DCB-EEP;
C1 Russian Acad Sci, PP Shirshov Oceanol Inst, Moscow 117997, Russia.
   Ifremer Brest, Dept Etud Ecosyst Profonds, F-29280 Plouzane, France.
C2 PP SHIRSHOV OCEANOL INST, RUSSIA
   IFREMER, FRANCE
SI TOULON
   BREST
SE PDG-DOP-LER-LERPAC
   PDG-DOP-DCB-EEP-LEP
   PDG-DOP-DCB-EEP
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 0.455
TC 16
TU IFREMER
UR https://archimer.ifremer.fr/doc/00019/13044/10156.pdf
LA English
DT Article
CR SERPENTINE
BO Pourquoi pas ?
DE ;Hydrothermal vent;Community dynamics;Succession;Phymorchynchus;Bathymodiolus puteoserpentis;Vesicomyids;Logatchev;Mid-Atlantic Ridge
AB Hydrothermal vent community dynamics over a ten year span was studied in the Logatchev area, 14 degrees 45'N on the Mid-Atlantic Ridge. On the SERPENTINE cruise in March 2007 with the RN Pourquoi pas? and the ROV Victor 6000 (IFREMER), composition, abundance and distribution of dominant megafauna at Logatchev were examined and compared to published data from 1997. Our results revealed notable changes in several community characteristics. The most significant changes evident in March 2007 compared to July 1997 were the increase up to by order of magnitude in the population density of predatory gastropods Phymorchynchus spp. at the site Irina-2 and disappearance of a live population of vesicomyids at the site Anya's Garden. Other notable differences between the two periods of observation were the overall increase in the abundance in 2007 of the mussel Bathymodiolus puteoserpentis and a high abundance of gravid females of the shrimp Rimicaris exoculata at Irina-2. It is suggested that the extinction of vesicomyids occurred owing to either a sediment slide at a steep slope of the Anya's Garden locality or instability of a biotope required for vesicomyids. Live vesicomyids were not found over a large area explored at Logatchev in 2007. Other changes observed in 2007 apparently were related to seasonal fluctuations in the community at Logatchev or fluctuations in the hydrothermal activity. Any successional stages over a decadal scale at Logatchev were not observed.
PY 2010
SO Cahiers De Biologie Marine
SN 0007-9723
PU Station biologique de Roscoff
VL 51
IS 4
UT 000284448300007
BP 383
EP 388
ID 13044
ER

EF