Assessment of the coral bleaching during 2005 to decipher the thermal stress in the coral environs of the Andaman Islands using Remote Sensing

Mohanty, P C and Mahendra, R S and Bisoyi, Hrusikesh and Tummula, Srinivasa Kumar and George, Grinson and Nayak, Shailesh and Sahu, B K (2013) Assessment of the coral bleaching during 2005 to decipher the thermal stress in the coral environs of the Andaman Islands using Remote Sensing. European Journal of Remote Sensing, 46. pp. 417-430.

[img]
Preview
PDF
Grinson_2013_EuJRS_46_417_430.pdf

Download (896kB)
Related URLs:

    Abstract

    Sea Surface Temperature (SST) derived from the NOAA AVHRR satellite data were used to generate the Degree of Heating Weeks (DHW) and Hot Spot (HS) products. Combination of the cumulative temperature anomalies and the thermal stress studies were yielded to synoptically identify the probable areas of bleaching. The bleaching status of the Andaman region was assessed based on the DHW and HS for the bleaching event occurred in the Andaman region in April/May 2005. The bleaching status up to Alert Level-1 was recorded with the maximum HS of 3oC and DHW 6oC-week. Simultaneous in-situ reef observations conducted in the Andaman Sea confirmed the coral bleaching event. The maximum mortality in the region due to coral bleaching was shown by the Acropora species (43%) followed by Montipora species (22%) and Porites species (14%). This study focused on detection of coral bleaching warning based on the SST in compliment with the in-situ observations.

    Item Type: Article
    Uncontrolled Keywords: Andaman Island; Hot Spot; degree of heating weeks; thermal stress; sea surface temperature
    Subjects: Oceanography > Remote sensing
    Divisions: CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    Subject Area > CMFRI-Kochi > Marine Capture > Fishery Resource Assessment
    Depositing User: Arun Surendran
    Date Deposited: 20 Jul 2013 04:25
    Last Modified: 09 Sep 2015 15:55
    URI: http://eprints.cmfri.org.in/id/eprint/9419

    Actions (login required)

    View Item View Item