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Histological observations in the Hawaiian reef coral, Porites compressa, affected by Porites bleaching with tissue loss

December 14, 2012

The scleractinian finger coral Porites compressa is affected by the coral disease Porites bleaching with tissue loss (PBTL). This disease initially manifests as bleaching of the coenenchyme (tissue between polyps) while the polyps remain brown with eventual tissue loss and subsequent algal overgrowth of the bare skeleton. Histopathological investigation showed a loss of symbiont and melanin-containing granular cells which was more pronounced in the coenenchyme than the polyps. Cell counts confirmed a 65% reduction in symbiont density. Tissue loss was due to tissue fragmentation and necrosis in affected areas. In addition, a reduction in putative bacterial aggregate densities was found in diseased samples but no potential pathogens were observed.

Citation Information

Publication Year 2012
Title Histological observations in the Hawaiian reef coral, Porites compressa, affected by Porites bleaching with tissue loss
DOI 10.1016/j.jip.2012.07.004
Authors M. Sudek, Thierry M. Work, G.S. Aeby, S.K. Davy
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Invertebrate Pathology
Series Number
Index ID 70041833
Record Source USGS Publications Warehouse
USGS Organization National Wildlife Health Center

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