A measured decline in Great Barrier Reef coral calcification is published

Assembled from 37 blocks · 1 evidence · 23 related

1. Story
2. Analysis of growth bands in massive Porites colonies, which record annual increments like tree rings and can be read back over centuries, reported a decline of about fourteen per cent in calcification since 1990 — a change described by the authors as unprecedented in the preceding four centuries of the record. The finding was significant because it measured a slowdown in reef building on colonies that had not bleached and had not died, separating the chemistry problem from the heat problem.
3. Knowledge
4. Coral calcification
5. Great Barrier Reef
6. Ocean acidification
7. A measured decline in Great Barrier Reef coral calcification is published
8. Connections
9. Coral calcification
10. Great Barrier Reef
11. Ocean acidification
12. Zooxanthellae (Symbiodiniaceae)
13. Ocean acidification
14. Reef carbonate budget
15. Symbiont shuffling and thermal tolerance
16. A measured decline in Great Barrier Reef coral calcification is published
17. Coral Triangle
18. Mesoamerican Barrier Reef System
19. Crown-of-thorns starfish (Acanthaster)
20. Australian Institute of Marine Science
21. Great Barrier Reef Marine Park Authority
22. Great Barrier Reef Marine Park Act creates a single managing authority
23. The Great Barrier Reef is inscribed on the World Heritage List
24. Mass synchronous spawning described on the Great Barrier Reef
25. The Long-Term Monitoring Program begins annual reef surveys
26. A measured decline in Great Barrier Reef coral calcification is published
27. Twenty-seven years of monitoring show coral cover roughly halved
28. Mass bleaching on the Great Barrier Reef
29. A second consecutive year of mass bleaching on the Great Barrier Reef
30. Mass bleaching on the Great Barrier Reef during a La Nina
31. The fifth mass bleaching on the Great Barrier Reef since 2016
32. The current state of the fourth global bleaching event is not established in this package
33. Coral calcification
34. Reef carbonate budget
35. A measured decline in Great Barrier Reef coral calcification is published
36. Evidence
37. Calcification in massive Porites on the Great Barrier Reef declined by about fourteen per cent from 1990, a change the authors described as without precedent in the preceding four centuries of the skeletal record. V55 verification basis: not consulted; the figure is stated from the producing model's knowledge. This result has been the subject of subsequent methodological debate that could not be reviewed here.