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Is there any relationship between phytoplankton seasonal dynamics and the carbonate system?

Record type: Article

Production of calcium carbonate by marine calcifying organisms has been shown to decrease under increasing CO2. This effect appears to be driven by a decrease in [CO32?]. The modelling study here described aims at investigating whether the success of a marine calcifying phytoplankton species, the coccolithophore Emiliania huxleyi, may be tied to [CO32?]. The work highlights the complex interactions between the carbonate system variables and spring blooms, and the possibility of a link to the competition between calcifying vs. non-calcifying species on the Bering Sea shelf. We find that the strong seasonal cycle in [CO32?] is driven primarily by carbon drawdown during spring blooms. The interesting outcome of this work is the fact that E. huxleyi bloom timings always coincide with periods of high [CO32?], which is consistent with studies showing coccoliths malformations and a slowdown in calcification at low [CO32?]. Whether the condition of high [CO32?] can be considered a crucial ecological factor for the success of E. huxleyi, however, remains an open and important question needing further investigation.

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Citation

Merico, A., Tyrrell, T. and Cokacar, T. (2006) Is there any relationship between phytoplankton seasonal dynamics and the carbonate system? Journal of Marine Systems, 59, (1-2), pp. 120-142. (doi:10.1016/j.jmarsys.2005.11.004).

More information

Published date: 2006
Keywords: modelling, phytoplankton seasonal dynamics, Emiliania huxleyi, Bering Sea, carbonate system

Identifiers

Local EPrints ID: 20365
URI: http://eprints.soton.ac.uk/id/eprint/20365
ISSN: 0924-7963
PURE UUID: d2db436d-db77-4ae6-aeb8-63636ebbb5c7
ORCID for T. Tyrrell: ORCID iD orcid.org/0000-0002-1002-1716

Catalogue record

Date deposited: 20 Feb 2006
Last modified: 17 Jul 2017 16:29

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Contributors

Author: A. Merico
Author: T. Tyrrell ORCID iD
Author: T. Cokacar

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