FN Archimer Export Format PT J TI Biological and environmental rhythms in (dark) deep-sea hydrothermal ecosystems BT AF CUVELIER, Daphne LEGENDRE, Pierre LAES-HUON, Agathe SARRADIN, Pierre-Marie SARRAZIN, Jozee AS 1:1,4;2:2;3:3;4:1;5:1; FF 1:;2:;3:PDG-REM-RDT-LDCM;4:PDG-REM-EEP;5:PDG-REM-EEP-LEP; C1 IFREMER, Ctr Bretagne, REM EEP, Lab Environm Profond, F-29280 Plouzane, France. Univ Montreal, Dept Sci Biol, POB 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada. IFREMER, Ctr Bretagne, REM RDT, Lab Detect Capteurs & Mesures, F-29280 Plouzane, France. Mare Marine & Environm Sci Ctr, Dept Oceanog & Fisheries, Rua Prof Freder Machado 4, P-9901862 Horta, Portugal. C2 IFREMER, FRANCE UNIV MONTREAL, CANADA IFREMER, FRANCE MARE, PORTUGAL SI BREST SE PDG-REM-RDT-LDCM PDG-REM-EEP PDG-REM-EEP-LEP IN WOS Ifremer jusqu'en 2018 DOAJ copubli-europe copubli-int-hors-europe IF 3.441 TC 25 UR https://archimer.ifremer.fr/doc/00389/50069/50662.pdf LA English DT Article CR MOMARSAT : MONITORING THE MID ATLANTIC RIDGE AB During 2011, two deep-sea observatories focusing on hydrothermal vent ecology were up and running in the Atlantic (Eiffel Tower, Lucky Strike vent field) and the Northeast Pacific Ocean (NEP) (Grotto, Main Endeavour Field). Both ecological modules recorded imagery and environmental variables jointly for a time span of 23 days (7–30 October 2011) and environmental variables for up to 9 months (October 2011–June 2012). Community dynamics were assessed based on imagery analysis and rhythms in temporal variation for both fauna and environment were revealed. Tidal rhythms were found to be at play in the two settings and were most visible in temperature and tubeworm appearances (at NEP). A  ∼  6 h lag in tidal rhythm occurrence was observed between Pacific and Atlantic hydrothermal vents, which corresponds to the geographical distance and time delay between the two sites. PY 2017 PD JUL SO Biogeosciences SN 1726-4170 PU Copernicus Gesellschaft Mbh VL 14 IS 12 UT 000403809000002 BP 2955 EP 2977 DI 10.5194/bg-14-2955-2017 ID 50069 ER EF