Capture and storage of Carbon in seagrass beds of a vulnerable species Halophila beccarii (Asch.) at the Kadalundi Estuary, Kerala, India

Kaladharan, P and Lavanya, R and Akshara, C (2021) Capture and storage of Carbon in seagrass beds of a vulnerable species Halophila beccarii (Asch.) at the Kadalundi Estuary, Kerala, India. Journal of the Marine Biological Association of India, 63 (2). pp. 127-129.

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    Abstract

    agrass habitats are efficient carbon sink that can bury and store organic carbon for a long time. We report here the capture of dissolved CO2 by the ocean-turf grass, Halophila beccarii and its storage as carbon stock in the sediments extending an area of two hectares in the mudflats of Kadalundi Estuary. The organic carbon content in the seagrass sediment showed gradual increase from 0.473% during January to 0.824% during March. Organic carbon content in the sediment within the Halophila bed was 110- 134% higher than that of outside the seagrass bed. The three months observation, though a short term study revealed that the mean values of blue carbon stock of Halophila beds of Kadalundi Estaury were at 2.655±0.34 Mg C/ha. The capture potential of dissolved CO2 by the seagrass, unravelled through an experiment involving intact plants showed that the Halophila plants could utilize 21.4%– 25.7% of dissolved CO2 in light within 2 hours.

    Item Type: Article
    Uncontrolled Keywords: Blue carbon stock; dry bulk density; soil organic carbon; ocean-turf grass; seagrass meadows
    Subjects: Marine Ecosystems > Mangroves
    Marine Botany
    Marine Botany > Seagrass
    Divisions: CMFRI-Kochi > Fishery Environment
    Subject Area > CMFRI > CMFRI-Kochi > Fishery Environment
    CMFRI-Kochi > Fishery Environment
    Subject Area > CMFRI-Kochi > Fishery Environment
    Depositing User: Arun Surendran
    Date Deposited: 19 Feb 2022 09:54
    Last Modified: 19 Feb 2022 09:54
    URI: http://eprints.cmfri.org.in/id/eprint/15806

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