The effect of dissolved nickel and copper on the adult coral Acropora muricata and its microbiome

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dc.contributor.authorGissi, Fen_AU
dc.contributor.authorReichelt-Brushett, AJen_AU
dc.contributor.authorChariton, AAen_AU
dc.contributor.authorStauber, JLen_AU
dc.contributor.authorGreenfield, Pen_AU
dc.contributor.authorHumphrey, Cen_AU
dc.contributor.authorSalmon, Men_AU
dc.contributor.authorStephenson, SAen_AU
dc.contributor.authorCresswell, Ten_AU
dc.contributor.authorJolley, DFen_AU
dc.date.accessioned2021-09-14T03:18:26Zen_AU
dc.date.available2021-09-14T03:18:26Zen_AU
dc.date.issued2019-04-03en_AU
dc.date.statistics2021-09-09en_AU
dc.description.abstractThe potential impacts of mining activities on tropical coastal ecosystems are poorly understood. In particular, limited information is available on the effects of metals on scleractinian corals which are foundation species that form vital structural habitats supporting other biota. This study investigated the effects of dissolved nickel and copper on the coral Acropora muricata and its associated microbiota. Corals collected from the Great Barrier Reef were exposed to dissolved nickel (45, 90, 470, 900 and 9050 μg Ni/L) or copper (4, 11, 32 and 65 μg Cu/L) in flow through chambers at the National Sea Simulator, Townsville, Qld, Australia. After a 96-h exposure DNA metabarcoding (16S rDNA and 18S rDNA) was undertaken on all samples to detect changes in the structure of the coral microbiome. The controls remained healthy throughout the study period. After 36 h, bleaching was only observed in corals exposed to 32 and 65 μg Cu/L and very high nickel concentrations (9050 μg Ni/L). At 96 h, significant discolouration of corals was only observed in 470 and 900 μg Ni/L treatments, the highest concentrations tested. While high concentrations of nickel caused bleaching, no changes in the composition of their microbiome communities were observed. In contrast, exposure to copper not only resulted in bleaching, but altered the composition of both the eukaryote and bacterial communities of the coral's microbiomes. Our findings showed that these effects were only evident at relatively high concentrations of nickel and copper, reflecting concentrations observed only in extremely polluted environments. Elevated metal concentrations have the capacity to alter the microbiomes which are inherently linked to coral health. Crown Copyright ©2019. Published by Elsevier Ltd.en_AU
dc.identifier.citationGissi, F., Reichelt-Brushett, A. J., Chariton, A. A., Stauber, J. L., Greenfield, P., Humphrey, C., Salmon, M., Stephenson, S. A., Cresswell, T. & Jolley, D. F. (2019). The effect of dissolved nickel and copper on the adult coral Acropora muricata and its microbiome. Environmental Pollution, 250, 792-806. doi:10.1016/j.envpol.2019.04.030en_AU
dc.identifier.issn0269-7491en_AU
dc.identifier.journaltitleEnvironmental Pollutionen_AU
dc.identifier.pagination792-806en_AU
dc.identifier.urihttps://doi.org/10.1016/j.envpol.2019.04.030en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11699en_AU
dc.identifier.volume250en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectCoralsen_AU
dc.subjectTropical regionsen_AU
dc.subjectDNAen_AU
dc.subjectRecombinant DNAen_AU
dc.subjectMetalsen_AU
dc.subjectNickelen_AU
dc.subjectCopperen_AU
dc.titleThe effect of dissolved nickel and copper on the adult coral Acropora muricata and its microbiomeen_AU
dc.typeJournal Articleen_AU
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