Declining Coral Calcification on the Great Barrier Reef

  title={Declining Coral Calcification on the Great Barrier Reef},
  author={Glenn De’ath and Janice M. Lough and Katharina E. Fabricius},
  pages={116 - 119}
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… 
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