TY - JOUR T1 - Astronomical and atmospheric impacts on deep-sea hydrothermal vent invertebrates A1 - Lelievre,Yann A1 - Legendre,Pierre A1 - Matabos,Marjolaine A1 - Mihaly,Steve A1 - Lee,Raymond W. A1 - Sarradin,Pierre-Marie A1 - Arango,Claudia P. A1 - Sarrazin,Jozee AD - IFREMER, Ctr Bretagne, REM EEP, Lab Environm Profond, F-29280 Plouzane, France. AD - Univ Montreal, Dept Sci Biol, CP 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada. AD - Univ Victoria, Ocean Networks Canada, POB 1700 STN CSC, Victoria, BC V8W 2Y2, Canada. AD - Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USA. AD - Queensland Museum, Biodivers Program, POB 3300, South Brisbane, Qld 4101, Australia. UR - https://doi.org/10.1098/rspb.2016.2123 DO - 10.1098/rspb.2016.2123 KW - deep-sea observatory KW - hydrothermal vents KW - macrofaunal abundance KW - surface storms KW - ocean tides KW - time-series analysis N2 - Ocean tides and winter surface storms are among the main factors driving the dynamics and spatial structure of marine coastal species, but the understanding of their impact on deep-sea and hydrothermal vent communities is still limited. Multidisciplinary deep-sea observatories offer an essential tool to study behavioural rhythms and interactions between hydrothermal community dynamics and environmental fluctuations. Here, we investigated whether species associated with a Ridgeia piscesae tubeworm vent assemblage respond to local ocean dynamics. By tracking variations in vent macrofaunal abundance at different temporal scales, we provide the first evidence that tides and winter surface storms influence the distribution patterns of mobile and non-symbiotic hydrothermal species (i.e. pycnogonids Sericosura sp. and Polynoidae polychaetes) at more than 2 km depth. Local ocean dynamics affected the mixing between hydrothermal fluid inputs and surrounding seawater, modifying the environmental conditions in vent habitats. We suggest that hydrothermal species respond to these habitat modifications by adjusting their behaviour to ensure optimal living conditions. This behaviour may reflect a specific adaptation of vent species to their highly variable habitat. Y1 - 2017/04 PB - Royal Soc JF - Proceedings Of The Royal Society B-biological Sciences SN - 0962-8452 VL - 284 IS - 1852 ID - 49122 ER -