Supplementary material from "Astronomical and atmospheric impacts on deep-sea hydrothermal vent invertebrates"
Posted on 2017-03-23 - 11:22
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.
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Lelièvre, Yann; Legendre, Pierre; Matabos, Marjolaine; Mihály, Steve; W. Lee, Raymond; Sarradin, Pierre-Marie; et al. (2017). Supplementary material from "Astronomical and atmospheric impacts on deep-sea hydrothermal vent invertebrates". The Royal Society. Collection. https://doi.org/10.6084/m9.figshare.c.3723970.v1
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AUTHORS (8)
YL
Yann Lelièvre
PL
Pierre Legendre
MM
Marjolaine Matabos
SM
Steve Mihály
RW
Raymond W. Lee
PS
Pierre-Marie Sarradin
CA
Claudia P. Arango
JS
Jozée Sarrazin