Understanding the influence of benthic biodiversity on biogeochemical cycling in polar marine ecosystems subject to rapid climate change

Polar marine ecosystems are particularly experiencing strong modifications, because of their sensitivity to sea surface warming and sea ice retreat. We aim to investigate the influence of rapidly changing environmental conditions on sea floor biodiversity and biogeochemistry in polar marine ecosystems. Since the effects will be system-specific, two very contrasting ecosystems are targeted: a deep-sea Arctic and a coastal Antarctic site.