FN Archimer Export Format
PT J
TI Copepod colonization of organic and inorganic substrata at a deep-sea hydrothermal vent site on the Mid-Atlantic Ridge
BT 
AF PLUM, Christoph
   PRADILLON, Florence
   FUJIWARA, Yoshihiro
   SARRAZIN, Jozee
AS 1:1,2;2:1;3:2;4:1;
FF 1:PDG-REM-EEP-LEP;2:PDG-REM-EEP-LEP;3:;4:PDG-REM-EEP-LEP;
C1 Inst Carnot Ifremer EDROME, Ctr Bretagne, Lab Environm Profond, REM EEP, Plouzane, France.
   JAMSTEC, Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa, Japan.
C2 IFREMER, FRANCE
   JAMSTEC, JAPAN
SI BREST
SE PDG-REM-EEP-LEP
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 2.451
TC 25
UR https://archimer.ifremer.fr/doc/00342/45318/44776.pdf
LA English
DT Article
CR BIOBAZ 2011
   BIOBAZ 2013
   MOMARSAT2011
   MOMARSAT2012
   MOMARSAT2013
   MOMARSAT2014
   MOMARSAT2015
BO Pourquoi pas ?
   Thalassa
DE ;Chemosynthetic ecosystems;Ecological connectivity;Biodiversity and ecosystem functioning;Community composition;Colonization experiment;Hydrothermal activity
AB The few existing studies on deep-sea hydrothermal vent copepods indicate low connectivity with surrounding environments and reveal high endemism among vents. However, the finding of non-endemic copepod species in association with engineer species at different reduced ecosystems poses questions about the dispersal of copepods and the colonization of hydrothermal vents as well as their ecological connectivity.  The objective of this study is to understand copepod colonization patterns at a hydrothermal vent site in response to environmental factors such as temperature and fluid flow as well as the presence of different types of substrata. To address this objective, an in situ experiment was deployed using both organic (woods, pig bones) and inorganic (slates) substrata along a gradient of hydrothermal activity at the Lucky Strike vent field (Eiffel Tower, Mid-Atlantic Ridge). The substrata were deployed in 2011 during the MoMARSAT cruise and were recovered after two years in 2013.  Overall, copepod density showed significant differences between substrata types, but was similar among different hydrothermal activity regimes. Highest densities were observed on woods at sites with moderate or low fluid input, whereas bones were the most densely colonized substrata at the 2 sites with higher hydrothermal influence. Although differences in copepod diversity were not significant, the observed trends revealed overall increasing diversity with decreasing temperature and fluid input. Slates showed highest diversity compared to the organic substrata. Temperature and fluid input had a significant influence on copepod community composition, resulting in higher similarity among stations with relatively high and low fluid inputs, respectively. While vent-specialists such as dirivultids and the tegastid Smacigastes micheli dominated substrata at high vent activity, the experiment demonstrated increasing abundance and dominance of non-vent taxa with decreasing temperature and fluid input. Effects of the substratum type on community composition were not significant, although at sites with moderate or low fluid input, woods exhibited distinctive communities with high densities and relative abundance of the taxon Nitocrella sp.. In conclusion, copepod colonization and species composition were mainly influenced by hydrothermal fluid input and temperature rather than the type of substratum. The outcome of this study provides fundamental knowledge to better understand copepod colonization at hydrothermal vents
PY 2017
PD MAR
SO Deep-sea Research Part Ii-topical Studies In Oceanography
SN 0967-0645
PU Pergamon-elsevier Science Ltd
VL 137
UT 000398749900027
BP 335
EP 348
DI 10.1016/j.dsr2.2016.06.008
ID 45318
ER

EF