Effect of Inorganic Nutrient Enrichment and Water Temperature Increment on the Zooxanthellae Density in the Scleractinian Coral Tissues

• DOI: 10.4217/opr.2013.35.2.085
• Publication Date: 2013-08-07T00:02:28Z
• Authors: Taihun Kim; Heung-Sik Park
• Keywords: Zooxanthellae; Coral bleaching; Symbiodinium; Acropora; Stylophora pistillata

The coral symbiotic algae zooxanthellae is often expelled from the host as under physiological stress, causing to turn completely white. Such bleaching events are occurring more frequently with increase in global warming, ocean acidification and increased level of anthropogenic impacts such eutrophication. In present study, we investigated effects inorganic nutrients including ammonium, nitrate, phosphate elevated water temperature on density fragment branching Acropora nobilis. Zooxanthellae decreased 8 hrs after experiment at a given (<TEX>$32^{\circ}C$</TEX>, p < 0.05). contrast, no clear or decrease was observed exposed normal <TEX>$30^{\circ}C$</TEX> high levels 20 <TEX>${\mu}M$</TEX> <TEX>$NH_4Cl$</TEX>, <TEX>$NaNO_3$</TEX> and, 10 <TEX>$KH_2PO_4$</TEX>. Accordingly, data indicated one stressful factors cause A. nobilis, whereas not factor. It believed that results obtained study useful baseline information management reefs.