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Cited by 248

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Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response

Open access
Feng, Y, Hare, CE, Leblanc, K, Rose, JM, Zhang, Y, DiTullio, GR, Lee, PA, Wilhelm, SW, Rowe, JM, Sun, J, Nemcek, N, Gueguen, C, Passow, U, Benner, I, Brown, C, Hutchins, DA·2009·Marine Ecology Progress Series

Abstract

The North Atlantic spring bloom is one of the largest annual biological events in the ocean, and is characterized by dominance transitions from siliceous (diatoms) to calcareous (coccolithophores) algal groups.To study the effects of future global change on these phytoplankton and the biogeochemical cycles they mediate, a shipboard continuous culture experiment (Ecostat) was conducted in June 2005 during this transition period.Four treatments were examined: (1) 12°C and 390 ppm CO 2 (ambient control), (2) 12°C and 690 ppm CO 2 (high pCO 2 ), (3) 16°C and 390 ppm CO 2 (high temperature), and (4) 16°C and 690 ppm CO 2 ('greenhouse').Nutrient availability in all treatments was designed to reproduce the low silicate conditions typical of this late stage of the bloom.Both elevated pCO 2 and temperature resulted in changes in phytoplankton community structure.Increased temperature promoted whole community photosynthesis and particulate organic carbon (POC) production rates per unit chlorophyll a.Despite much higher coccolithophore abundance in the greenhouse treatment, particulate inorganic carbon production (calcification) was significantly decreased by the combination of increased pCO 2 and temperature.Our experiments suggest that future trends during the bloom could include greatly reduced export of calcium carbonate relative to POC, thus providing a potential negative feedback to atmospheric CO 2 concentration.Other trends with potential climate feedback effects include decreased community biogenic silica to POC ratios at higher temperature.These shipboard experiments suggest the need to examine whether future pCO 2 and temperature increases on longer decadal timescales will similarly alter the biological and biogeochemical dynamics of the North Atlantic spring bloom.

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Crossref · 10.3354/meps08133

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Metadata

Authors
Feng, Y., Hare, C., Leblanc, K., Rose, J., Zhang, Y., DiTullio, G., Lee, P., Wilhelm, S., Rowe, J., Sun, J., Nemcek, N., Gueguen, C., Passow, U., Benner, I., Brown, C., & Hutchins, D.
Venue
Marine Ecology Progress Series
Published
2009-08-19
Volume
388
Pages
13-25
ISSN
  • 0171-8630 (ISSN-L)
  • 1616-1599
OpenAlex
W2143402417
Cited by
248
References
6
FWCI
13.03
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response. https://app.cochat.ai/papers/10.3354/meps08133
The paper
Feng, Y., Hare, C., Leblanc, K., Rose, J., Zhang, Y., DiTullio, G., Lee, P., Wilhelm, S., Rowe, J., Sun, J., Nemcek, N., Gueguen, C., Passow, U., Benner, I., Brown, C., & Hutchins, D. (2009). Effects of increased pCO2 and temperature on the North Atlantic spring bloom. I. The phytoplankton community and biogeochemical response. Marine Ecology Progress Series. https://doi.org/10.3354/meps08133

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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