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Coccolithophorid dynamics : the European Emiliania Huxleyi programme

Objective



The unicellular pelagic alga Emiliania huxleyi is dominant among the ocean biota. E. huxleyi provides an ideal experimental system for integrated biological, biogeochemical, and geological research of the oceanic fluxes of carbon as well as the global carbon cycle. EHUX is a comprehensive experimental and modelling project focused on the calcium carbonate and organic carbon productivity and ocean carbon flux induced by E. huxleyi in the present N.E. Atlantic region.

The fundamental objective of this project is to improve our understanding of the processes involved in the growth and distribution of E. huxleyi and of its role in the oceanic carbon cycle.

The specific aims are:

1. Morphological and genetic characterization of clones and elucidation of life cycle.

2. Characterization of PIC, POC, biomarker, and CO2 productivity as a function of cellular and molecular organisation and life cycle stages.

3. Provision of quantitative information on calcite, biomarker, and CO2 productivity in response to controlled environmental condition.

4. Quantification of the processes outlined above in natural blooms at different stages of development and development of carbon budgets for well defined spring bloom conditions.

5. The development of descriptive and predictive models of the processes influencing coccolithophore dynamics and the interactions between E. huxleyi and its environment.

The achievement of these specific objectives is required to properly model the system for answering questions such as -
how much CO2 will the ocean sequester or produce under what conditions, and how fast?
The project will involve the characterization of the idiosyncratic and non-linear nature of the biological involvement in ocean chemistry and the intimate coupling of the fluxes of particulate inorganic carbon and particulate organic carbon. It will employ an integrated approach encompassing research and modelling at the biochemical, physiological, population dynamical, ecosystem and global levels.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

NERC Centre of Coastal and Marine Sciences
Address
Prospect Place West Hoe
PL1 3DH Plymouth
United Kingdom

Participants (12)

ALFRED WEGENER INSTITUTE FOR POLAR AND MARINE RESEARCH
Germany
Address
Columbusstrasse
27568 Bremerhaven
LEIDEN UNIVERSITY
Netherlands
Address
55,Einsteinweg 55 Gorlaeus Laboratoria
2300 RA Leiden
Marine Biological Association of the United Kingdom
United Kingdom
Address
Citadel Hill
PL1 2PB Plymouth
NATURAL HISTORY MUSEUM
United Kingdom
Address
Cromwell Road
London
NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Norway
Address
46,Bynesveien 46
7018 Trondheim
UNIVERSIDAD DE OVIEDO
Spain
Address
S/n,catedratico Rodrigo Uria S/n
33071 Oviedo
UNIVERSITY OF BERGEN
Norway
Address
55,Thormoehlensgt. 55
5020 Bergen
UNIVERSITY OF OSLO
Norway
Address
Molkte Moes Vei 32 Blindern
0316 Oslo
UNIVERSITY OF WALES SWANSEA
United Kingdom
Address
Singleton Park
SA2 8PP Swansea
University of Bristol
United Kingdom
Address
Cantock's Close
BS8 1TS Bristol
University of Southampton
United Kingdom
Address
European Way
SO14 3ZH Southampton
VRIJE UNIVERSITEIT AMSTERDAM - VERENIGING VOOR CHRISTELIJK WETENSCHAPPELIJK ONDERWIJS
Netherlands
Address
1087,De Boelelaan 1087
1081 HV Amsterdam