Orateur
Dr
Nadine Le Bris
(LECOB CNRS-UPMC FRE3350, Obs. Banyuls)
Description
Deep-sea environnements display unique relationships between
biodiversity and ecosystem functionning, reflecting their ability to
exploit intermittent energy supply. Understanding these links are of
major importance to predict their response to environmental disturbance.
Of particular ecological interest are degrading organic falls (e.g.
wood, organic debris) that creates habitats rich in sulfide and methane,
suitable for specially adapted chemosynthetic communities. Rates and
mechanisms linking habitat abiotic conditions to faunal and microbial
community dynamics are mostly unknown. Experimental devices have been
deployed at great depths in various marine environment throughout the
world. Cabled networks offer the opportunities to propose new
experimental approaches, based on real time monitoring of the dynamics
of key factors these benthic biodiversity hotpots, combining imagery
with autonomous chemical sensors. This deep station (> 1500 meter) will
complement experiments that are currently being deployed, from shallow
to medium depth, close to the Banyuls Observatory.
Auteur principal
Dr
Nadine Le Bris
(LECOB CNRS-UPMC FRE3350, Obs. Banyuls)
