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Coral Reefs

, Volume 16, Issue 4, pp 261–266 | Cite as

Coral reef ecosystems as a source of atmospheric CO2: evidence from PCO2 measurements of surface waters

  • H. Kawahata
  • A. Suzuki
  • K. Goto

Abstract.

 Precise measurements of the partial pressure of CO2 (PCO2) in oceanic and lagoonal surface waters from Palau Barrier Reef and Majuro Atoll were taken to ascertain the net effect of these coral reef systems on air-sea CO2 exchange. PCO2 in the surface water in the lagoon of Palau Barrier Reef and Majuro Atoll was 48 and 14 μatm higher than in the surrounding oceanic water, respectively. A total carbon dioxide vs. total alkalinity diagram indicates that calcification is mainly responsible for CO2 evasion in these coral reef systems.

Keywords

Surface Water Coral Reef Alkalinity Total Carbon Precise Measurement 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • H. Kawahata
    • 1
  • A. Suzuki
    • 1
  • K. Goto
    • 2
  1. 1.Marine Geology Department, Geological Survey of Japan, 1-1-3 Higashi, Tsukuba, 305, Japan e-mail: kawahata@gsj.go.jpJP
  2. 2.Kansai Environmental Engineering Center Co., Ltd., Osaka, 530, JapanJP

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