Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/13268
Title: Coral disease prevalence in the Palk Bay, Southeastern India – with special emphasis to black band
Authors: Thinesh, T
Mathews, G
Edward, J K Patterson
Keywords: Palk Bay
Coral disease
Pollution
Temperature
Issue Date: Dec-2011
Publisher: NISCAIR-CSIR, India
Abstract: Present study consists the details related to the nature of coral disease in nine locations from Vethalai to Rameswaram north in the Palk Bay. Among the overall corals 21% were affected by disease. Six disease types were documented. Black Band Disease (BBD) is high with 9.8% followed by white band (5.5%), white spot (2.2%), pink spot (1.9%), white plague (1.1%) and yellow band (0.6%). Eight coral genera were found to be affected wherein <i style="mso-bidi-font-style:normal">Acropora</i> and <i style="mso-bidi-font-style:normal">Porites</i> showed severe damage and the high prevalence of diseases. The coral genus, <i style="mso-bidi-font-style: normal">Porites</i> was found to be affected by four different types of diseases. BBD affected colonies were tagged and photographed at regular intervals to quantify the progression rate in two coral genera, <i style="mso-bidi-font-style:normal">Acropora</i> and <i style="mso-bidi-font-style: normal">Platygyra</i> and the disease progression rate was 3 cm per month. White band disease was widespread and was found to affect exclusively <i style="mso-bidi-font-style:normal">Acropora</i> sp. Corals like <i style="mso-bidi-font-style:normal">Symphylia</i> sp. and <i style="mso-bidi-font-style: normal">Cyphastrea</i> sp. in the Palk Bay were comparatively not affected by diseases. Total heterotrophic bacteria and pathogenic microbial forms in the reef environment were also examined in the present study.
Description: 813-820
URI: http://hdl.handle.net/123456789/13268
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.40(6) [December 2011]

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