Preliminary assessment, restoration and aquaculture support for a small wetland

Zacharia, P U and Haritha, J and Shamiya, Hasan and Rojith, G and Sharon, Benny and Dhanya, Joseph and Roshen, G N and Sajna, V H and Kaladharan, P and Sipson, Augustine and Padua, Shelton (2020) Preliminary assessment, restoration and aquaculture support for a small wetland. Marine Fisheries Information Service; Technical and Extension Series (243). pp. 16-20. ISSN ISSN 0254-380 X

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    Abstract

    In line with the strategy of regional wetland datasets integration to a common national digital platform, map of small wetlands less than 2.2 ha in Kochi Taluk was prepared. A representative small wetland at Edakochi village of Kerala was selected through maps and field visits for preliminary assessment and restoration. Shuttle Radar Topography Mission’s Digital Elevation Model (DEM) was used to assess the general elevation, slope and flow accumulation pattern of the selected wetland along with assessment of the catchment area and drainage pattern. Restoration works of the selected wetland was carried out vis-a-vis side bund strengthening and sluice gate fortification. The comparative analysis of water quality assessment of wetland before and after restoration revealed improvement in water quality parameters as well as increase in water level. The Dissolved Oxygen level of the aquatic system was found to have increased substantially along with other several favourable changes in water parameters due to the restoration activities. The restored wetland at Edakochi was further utilised for multispecies farming of prawns, Pearl spot, Milk fish and Grey mullet and the harvest indicated sustainable yield. Aquaculture practice in wetlands with real time scientific advisories could ensure continuous data generation and village level climate resilience.

    Item Type: Article
    Uncontrolled Keywords: Small wetland, Geospatial, Restoration, Aquaculture, Climate resilience
    Subjects: Marine Environment > Climate change
    Aquaculture
    Marine Environment
    Divisions: CMFRI-Karwar
    Depositing User: Mr. Prashanth P K
    Date Deposited: 22 Sep 2020 10:01
    Last Modified: 22 Sep 2020 10:01
    URI: http://eprints.cmfri.org.in/id/eprint/14670

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