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Benthic diagenesis and microbiology of hadal trenches

Objective

With this project, called HADES, we aim to provide the first detailed, combined analysis of benthic diagenesis and microbial ecology of some of the deepest oceanic trenches on Earth. We argue that deep trenches, some of the most remote, extreme, and scantly explored habitats on Earth, are hotspots of deposition and mineralization of organic material. With the development of novel autonomous in situ instrumentation to overcome large sampling artifacts from decompression, we will i) determine rates of benthic metabolism and the importance of the deep trenches for the marine carbon and nitrogen cycles, ii) explore the unique benthic microbial communities driving these processes, and iii) investigate the proposed great role of virus in regulating microbial performance and carbon cycling in hadal sediments. By comparing trenches from contrasting oceanic settings the project provides a completely novel general analysis of hadal biogeochemistry and the role of deep trenches in the oceans, as well as fundamental new insights into the composition and functioning of microbial communities at extreme pressure.

Call for proposal

ERC-2014-ADG
See other projects for this call

Funding Scheme

ERC-ADG - Advanced Grant
Leaflet | Map data © OpenStreetMap contributors, Credit: EC-GISCO, © EuroGeographics for the administrative boundaries

Host institution

SYDDANSK UNIVERSITET
Address
Campusvej 55
5230 Odense M
Denmark
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 3 027 500

Beneficiaries (2)

SYDDANSK UNIVERSITET
Denmark
EU contribution
€ 3 027 500
Address
Campusvej 55
5230 Odense M
Activity type
Higher or Secondary Education Establishments
THE SCOTTISH ASSOCIATION FOR MARINESCIENCE LBG
United Kingdom
EU contribution
€ 157 500
Address
Scottish Marine Institute
PA37 1QA Dunbeg Oban
Activity type
Research Organisations