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Is there any relationship between phytoplankton seasonal dynamics and the carbonate system?
Date
2006-01-01
Author
Merico, A
Tyrrell, T
Cokacar, T
Metadata
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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.
Subject Keywords
Aquatic Science
,
Ecology, Evolution, Behavior and Systematics
,
Oceanography
URI
https://hdl.handle.net/11511/66460
Journal
JOURNAL OF MARINE SYSTEMS
DOI
https://doi.org/10.1016/j.jmarsys.2005.11.004
Collections
Graduate School of Marine Sciences, Article
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A. Merico, T. Tyrrell, and T. Cokacar, “Is there any relationship between phytoplankton seasonal dynamics and the carbonate system?,”
JOURNAL OF MARINE SYSTEMS
, pp. 120–142, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66460.