NDLI: Assessing threats from coral and crustose coralline algae disease on the reefs of New Caledonia

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Assessing threats from coral and crustose coralline algae disease on the reefs of New Caledonia

Content Provider	Semantic Scholar
Author	Aeby, Greta Smith Tribollet, Aline Lasne, Grégory Work, Thierry M.
Copyright Year	2016
Abstract	The present study reports the results of the first quantitative survey of lesions on coral and crustose coralline algae (CCA) on reefs in the lagoon of New Caledonia. Surveys on inshore and offshore reefs were conducted at 13 sites in 2010,with12sitesresurveyedin2013.Thirtycoraldiseasesaffecting15coralgenerawerefound,withlowoveralldisease prevalence (,1%). This study extends the known distribution of growth anomalies to the coral genera Platygyra and Hydnophora, endolithic hypermycosis to Platygyra, Leptoria and Goniastrea and extends the geographic range of three CCA diseases. We found the first trematode infection in Porites outside of Hawaii. Disease prevalence differed among coral genera, with Porites having more lesions, and Acropora and Montipora fewer lesions, than expected on the basis of field abundance. Inshore reefs had a lower coral-colony density, species diversity and reduced CCA cover than did the offshore reefs. Disease prevalence was significantly higher on inshore reefs in 2013 than in 2010, but did not change on offshore reefs. The potential ecological impact of individual coral diseases was assessed using an integrative-scoring and relative-ranking scheme based on average frequency of occurrence, prevalence and estimated degree of virulence. The top-five ranked diseases were all tissue-loss diseases. Additional keywords: CCA disease, coral disease, ecological impact of coral disease, endolithic hypermycosis, growth anomalies, trematode infection, white syndrome.
Starting Page	455
Ending Page	465
Page Count	11
File Format	PDF HTM / HTML
Volume Number	67
Alternate Webpage(s)	https://www.nwhc.usgs.gov/hfs/Globals/Products/AebyEA2014NCSurvey.pdf
Alternate Webpage(s)	https://doi.org/10.1071/MF14151
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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