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

Is there any relationship between phytoplankton seasonal dynamics and the carbonate system?
Is there any relationship between phytoplankton seasonal dynamics and the carbonate system?
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.
modelling, phytoplankton seasonal dynamics, Emiliania huxleyi, Bering Sea, carbonate system
0924-7963
120-142
Merico, A.
8e392a33-8ca8-4cea-9261-a0ca49112db1
Tyrrell, T.
6808411d-c9cf-47a3-88b6-c7c294f2d114
Cokacar, T.
cd88b1a6-eb61-4df4-906e-49a094b3d71a
Merico, A.
8e392a33-8ca8-4cea-9261-a0ca49112db1
Tyrrell, T.
6808411d-c9cf-47a3-88b6-c7c294f2d114
Cokacar, T.
cd88b1a6-eb61-4df4-906e-49a094b3d71a

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), 120-142. (doi:10.1016/j.jmarsys.2005.11.004).

Record type: Article

Abstract

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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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: 16 Mar 2024 02:52

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Contributors

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

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