Long-term monitoring reveals unprecedented stability of a vent mussel assemblage on the Mid-Atlantic Ridge

被引:15
作者
Van Audenhaege, Loic [1 ]
Matabos, Marjolaine [1 ]
Brind'Amour, Anik [2 ]
Drugmand, Jonathan [1 ,3 ]
Laes-Huon, Agathe [4 ]
Sarradin, Pierre-Marie [1 ]
Sarrazin, Jozee [1 ]
机构
[1] Univ Brest, CNRS, IFREMER, UMR6197 BEEP, F-29280 Plouzane, France
[2] IFREMER, INRAE, Inst Agro, DECOD Ecosyst Dynam & Sustainabil, Nantes, France
[3] Catholic Univ Louvain, Ecole Biol, B-1348 Louvain La Neuve, Belgium
[4] IFREMER, REM RDT LDCM, F-29280 Plouzane, France
关键词
Hydrothermal ecology; Deep-sea observatory; Underwater imagery; Bathymodiolus azoricus; Species behaviour; Habitat dynamics; Multidisciplinary research; Assemblage dynamics; Microbial mat; Biotic interaction; Long -term monitoring; SEA HYDROTHERMAL VENT; EAST PACIFIC RISE; DE-FUCA RIDGE; LAU SPREADING CENTER; MYTILUS-EDULIS-L; VALU FA RIDGE; LUCKY-STRIKE; BATHYMODIOLUS-AZORICUS; HIGH-TEMPERATURE; COMMUNITY STRUCTURE;
D O I
10.1016/j.pocean.2022.102791
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
Understanding scales and drivers of ecological variability is essential to a full understanding of ecosystem functioning. At remote deep-sea hydrothermal vents, infra-annual dynamics remain poorly described. This study aims to characterise the factors that drive the dynamics of a vent faunal assemblage dominated by Bathymodiolus azoricus mussels from infra-daily to monthly time steps. We analysed a 7-year time series of images and environmental data collected at a depth of 1695 m at the base of the active Eiffel Tower edifice in the Lucky Strike vent field (Mid-Atlantic Ridge). Using images acquired by the TEMPO ecological module connected to the EMSO-Azores observatory, we assessed the dynamics of key species inhabiting the faunal assemblage in relation to changes in environmental conditions monitored daily. Our results show that habitat conditions were generally stable over the 7-year period, with small-scale variability related to tidal periodicity and local temperature anomalies. Likewise, the mussel and zoanthid assemblages exhibited remarkable stability. Changes in fluid exposure and substratum instability induced decimetrescale movements of the mussel assemblage. Microbial mats displayed infra-annual changes characterised by aperiodic growth and decline. Their development patterns could not be entirely attributed to environmental conditions, because other factors, including biotic interactions, appeared to be involved. The crab population preferentially occupied the mussel habitat, but no predation was observed. Scales of variation and driving factors were compared with those governing intertidal zones. The outcomes question the assumption that vent fauna experience extreme and highly variable conditions. On the MAR, mussel assemblages appear to experience relatively stable and mild environmental conditions compared with their coastal counterparts.
引用
收藏
页数:23
相关论文
共 210 条
[1]  
Agarwal A.K., 2005, Indian Institute of Management, Ahmedabad,Working Paper Series, P1
[2]  
Aron M., 2013, MARTECH 2013 5 INT W, P35
[3]  
Ballu V., 2019, Geophysical research abstracts, V21
[4]   Temporal variability and tidal modulation of hydrothermal exit-fluid temperatures at the Lucky Strike deep-sea vent field, Mid-Atlantic Ridge [J].
Barreyre, Thibaut ;
Escartin, Javier ;
Sohn, Robert A. ;
Cannat, Mathilde ;
Ballu, Valerie ;
Crawford, Wayne C. .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2014, 119 (04) :2543-2566
[5]   Structure, temporal evolution, and heat flux estimates from the Lucky Strike deep-sea hydrothermal field derived from seafloor image mosaics [J].
Barreyre, Thibaut ;
Escartin, Javier ;
Garcia, Rafael ;
Cannat, Mathilde ;
Mittelstaedt, Eric ;
Prados, Ricard .
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2012, 13
[6]   Deep-sea hydrothermal vent animals seek cool fluids in a highly variable thermal environment [J].
Bates, Amanda E. ;
Lee, Raymond W. ;
Tunnicliffe, Verena ;
Lamare, Miles D. .
NATURE COMMUNICATIONS, 2010, 1
[7]   SURF: Speeded up robust features [J].
Bay, Herbert ;
Tuytelaars, Tinne ;
Van Gool, Luc .
COMPUTER VISION - ECCV 2006 , PT 1, PROCEEDINGS, 2006, 3951 :404-417
[8]   Metal interactions between the polychaete Branchipolynoe seepensis and the mussel Bathymodiolus azoricus from Mid-Atlantic-Ridge hydrothermal vent fields [J].
Bebianno, Maria Joao ;
Cardoso, Catia ;
Gomes, Tania ;
Blasco, Julian ;
Santos, Ricardo Serrao ;
Colaco, Ana .
MARINE ENVIRONMENTAL RESEARCH, 2018, 135 :70-81
[9]   POPULATION-DYNAMICS OF THE RIBBED MUSSEL, GEUKENSIA-DEMISSA - THE COSTS AND BENEFITS OF AN AGGREGATED DISTRIBUTION [J].
BERTNESS, MD ;
GROSHOLZ, E .
OECOLOGIA, 1985, 67 (02) :192-204
[10]   Variability in annual recruitment success as a determinant of long-term and large-scale variation in annual production of intertidal Wadden Sea mussels (Mytilus edulis) [J].
Beukema, J. J. ;
Dekker, R. .
HELGOLAND MARINE RESEARCH, 2007, 61 (02) :71-86