A Fundamental Study on Burial Carbon by Cerithidea cingulata in Tidal Flat of River Mouth

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  • 河口干潟におけるヘナタリの炭素埋没量に関する基礎的研究
  • カコウ ヒガタ ニ オケル ヘナタリ ノ タンソ マイボツリョウ ニ カンスル キソテキ ケンキュウ

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The carbon captured by living organisms in oceans is stored in the form of sediments from mangroves, salt marshes and seagrasses. We evaluated the blue carbon sinks by gastropod Cerithidea cingulata in river mouth tidal flat. We determined oxygen consumption of C. cingulata in the air and water conditions. Oxygen consumption grew with increasing temperature and shell length in both conditions. Approximately 80% of the carbon biomass was an inorganic carbon from shell origin. We calculated that the amount of carbon source as respiration and dead was 26 kgC/year, sink as production, shell formed, shell buried was 40 kgC/year in this muddy tidal flat. These results indicated that C. cingulata plays a role for contribution to sink the blue carbon

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