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Declining coral calcification on the Great Barrier Reef.
Science. 2009 Jan 02; 323(5910):116-9.Sci

Abstract

Reef-building corals are under increasing physiological stress from a changing climate and ocean absorption of increasing atmospheric carbon dioxide. We investigated 328 colonies of massive Porites corals from 69 reefs of the Great Barrier Reef (GBR) in Australia. Their skeletal records show that throughout the GBR, calcification has declined by 14.2% since 1990, predominantly because extension (linear growth) has declined by 13.3%. The data suggest that such a severe and sudden decline in calcification is unprecedented in at least the past 400 years. Calcification increases linearly with increasing large-scale sea surface temperature but responds nonlinearly to annual temperature anomalies. The causes of the decline remain unknown; however, this study suggests that increasing temperature stress and a declining saturation state of seawater aragonite may be diminishing the ability of GBR corals to deposit calcium carbonate.

Authors+Show Affiliations

Australian Institute of Marine Science, Townsville, Queensland 4810, Australia. g.death@aims.gov.auNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19119230

Citation

De'ath, Glenn, et al. "Declining Coral Calcification On the Great Barrier Reef." Science (New York, N.Y.), vol. 323, no. 5910, 2009, pp. 116-9.
De'ath G, Lough JM, Fabricius KE. Declining coral calcification on the Great Barrier Reef. Science. 2009;323(5910):116-9.
De'ath, G., Lough, J. M., & Fabricius, K. E. (2009). Declining coral calcification on the Great Barrier Reef. Science (New York, N.Y.), 323(5910), 116-9. https://doi.org/10.1126/science.1165283
De'ath G, Lough JM, Fabricius KE. Declining Coral Calcification On the Great Barrier Reef. Science. 2009 Jan 2;323(5910):116-9. PubMed PMID: 19119230.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Declining coral calcification on the Great Barrier Reef. AU - De'ath,Glenn, AU - Lough,Janice M, AU - Fabricius,Katharina E, PY - 2009/1/3/entrez PY - 2009/1/3/pubmed PY - 2009/1/22/medline SP - 116 EP - 9 JF - Science (New York, N.Y.) JO - Science VL - 323 IS - 5910 N2 - Reef-building corals are under increasing physiological stress from a changing climate and ocean absorption of increasing atmospheric carbon dioxide. We investigated 328 colonies of massive Porites corals from 69 reefs of the Great Barrier Reef (GBR) in Australia. Their skeletal records show that throughout the GBR, calcification has declined by 14.2% since 1990, predominantly because extension (linear growth) has declined by 13.3%. The data suggest that such a severe and sudden decline in calcification is unprecedented in at least the past 400 years. Calcification increases linearly with increasing large-scale sea surface temperature but responds nonlinearly to annual temperature anomalies. The causes of the decline remain unknown; however, this study suggests that increasing temperature stress and a declining saturation state of seawater aragonite may be diminishing the ability of GBR corals to deposit calcium carbonate. SN - 1095-9203 UR - https://www.unboundmedicine.com/medline/citation/19119230/Declining_coral_calcification_on_the_Great_Barrier_Reef_ L2 - https://www.sciencemag.org/cgi/pmidlookup?view=long&pmid=19119230 DB - PRIME DP - Unbound Medicine ER -