Water and sediment quality parameters of the restored mangrove ecosystem of Gurupura River and natural mangrove ecosystem of Shambhavi River in Dakshina Kannada, India

Sulochanan, Bindu and Lavanya, R and Veena, S and Padua, Shelton and Prema, D and Rohit, Prathibha and Kaladharan, P and Kripa, V (2022) Water and sediment quality parameters of the restored mangrove ecosystem of Gurupura River and natural mangrove ecosystem of Shambhavi River in Dakshina Kannada, India. Marine Pollution Bulletin, 176. pp. 1-12.

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    Abstract

    Restoration of Rhizophora mucronata stand in the Gurupura Estuary resulted in improved water and sediment quality parameters. Monthly monitoring from 2011 to 2016 indicates that the restored mangroves grew to a height of 61.49 ± 5.76 cm. Principal component analysis (PCA) showed that increased duration of salinity in the estuary aided the growth of barnacles in planted mangroves which reduced survival by 10%. The United States Environmental Protection Agency ratings revealed that natural mangrove site in Shambavi River exhibit the maximum good water quality rating though dissolved inorganic phosphorous was rated highest due to non-point pollution sources. The pH, salinity, dissolved oxygen, silicate, phosphate, ammonia, and rainfall demonstrated significant seasonal differences (P < 0.001). Mangrove roots and biomes aided in accumulation of clay and significant difference (P < 0.001) was observed yearly. Land use management, efficient waste disposal system along with restoration of diverse mangroves can improve the water quality of estuarine ecosystem.

    Item Type: Article
    Uncontrolled Keywords: Mangroves; Water quality; Rainfall; Sediment; Nutrients; Dakshina Kannada
    Subjects: Marine Ecosystems > Mangroves
    Marine Ecosystems
    Divisions: CMFRI-Kochi > Biodiversity
    Subject Area > CMFRI > CMFRI-Kochi > Biodiversity
    CMFRI-Kochi > Biodiversity
    Subject Area > CMFRI-Kochi > Biodiversity
    Depositing User: Arun Surendran
    Date Deposited: 02 Mar 2022 06:58
    Last Modified: 02 Mar 2022 06:58
    URI: http://eprints.cmfri.org.in/id/eprint/15823

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