Differential bleaching of corals based on El Niño type and intensity in the Andaman Sea, southeast Bay of Bengal

Lix, J K and Venkatesan, R and George, Grinson and Rao, R R and Jineesh, V K and Arul, Muthiah M and Vengatesan, G and Ramasundaram, S and Sundar, R and Atmanand, M A (2016) Differential bleaching of corals based on El Niño type and intensity in the Andaman Sea, southeast Bay of Bengal. Environmental Monitoring and Assessment, 188 (175). pp. 1-13. ISSN 0167-6369

[img] Text
EMA-Elnino-coral_2016_Grinson.pdf
Restricted to Registered users only

Download (3MB) | Request a copy
Official URL: http://link.springer.com/journal/10661
Related URLs:

    Abstract

    The Andaman coral reef region experienced mass bleaching events during 1998 and 2010. The purpose of this study is to investigate the role of the El Niño in the coral reef bleaching events of the Andaman region. Both Niño 3.4 and 3 indices were examined to find out the relationship between the mass bleaching events and El Niño, and correlated with sea surface temperature (SST) anomalies in the Andaman Sea. The result shows that abnormal warming and mass bleaching events in the Andaman Sea were seen only during strong El Niño years of 1997–1998 and 2009–2010. The Andaman Sea SST was more elevated and associated with El Niño Modoki (central Pacific El Niño) than conventional El Niño (eastern Pacific El Niño) occurrences. It is suggested that the development of hot spot patterns around the Andaman Islands during May 1998 and April–May 2010 may be attributed to zonal shifts in the Walker circulation driven by El Niño during the corresponding period.

    Item Type: Article
    Uncontrolled Keywords: Coral reefs; Bleaching; Sea surface temperature; Hot spot; El Niño; Indian Ocean
    Subjects: Marine Ecosystems > Coral Reefs > Bleaching
    Marine Environment > Climate change
    Marine Ecosystems > Coral Reefs
    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 Feb 2016 09:56
    Last Modified: 20 Feb 2016 09:57
    URI: http://eprints.cmfri.org.in/id/eprint/10644

    Actions (login required)

    View Item View Item