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Mar Pollut Bull. 2017 May 15;118(1-2):125-130. doi: 10.1016/j.marpolbul.2017.02.047. Epub 2017 Feb 23.

Impact of an experimental eutrophication on the processes of bioerosion on the reef: One Tree Island, Great Barrier Reef, Australia.

Author information

1
Aix Marseille University, CNRS, IRD, Coll France, CEREGE, Aix-en-Provence, France.
2
Australian Museum Research Institute, Australian Museum, Sydney, NSW, Australia. Electronic address: pat.hutchings@austmus.gov.au.

Abstract

The components of bioerosion were investigated during ENCORE (The Effect of Nutrient Enrichment on Coral Reefs) over 2years of controlled additions of dissolved inorganic nitrogen and phosphorus. The study was carried out at One Tree Island, southern Great Barrier Reef, Australia. Rates of microbioerosion and external erosion by grazing were significantly higher at the enriched sites than at the control sites. Rates of accretion by coralline algae were also significantly higher at enriched sites. In contrast, rates of macroboring were not significantly different between enriched and control sites. This study highlights the importance of improving water quality on the reef to reduce rates of bioerosion given that quantities of dead coral substrates have recently substantially increased as a result of coral bleaching (Hughes et al., 2015) and several Crown of Thorns plagues (Fabricius et al., 2010; De'ath et al., 2012), on the Great Barrier Reef.

KEYWORDS:

Australia; Bioerosion; Coral Reefs; Enrichment; Great Barrier Reef; Microborers

PMID:
28237078
DOI:
10.1016/j.marpolbul.2017.02.047
[Indexed for MEDLINE]

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