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Threat - Bleaching



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List of 13 records

1

1. Threats Bleaching: Africa. ...
The bleaching threshold for corals was exceeded for both hard and soft corals, but it was not excessive. Most corals on the reefs grow at 12m or deeper, which may have protected them from warmer temperatures in surface waters. Soft corals are more pr...


2. Threats Bleaching: Micronesia, American Samoa. ...
American Samoa lies close to a warmer than usual mass of seawater that tends to form south of the territory during La Niña years. Nearby Fiji and Western Samoa have been hit hard by mass coral bleaching in recent years, so it would seem probable the ...


3. Threats Bleaching: Micronesia, American Samoa. ...
Mass coral bleaching episodes in 1994, 2002 and 2003 correlated with high water temperatures also killed significant numbers of corals....


4. Threats Bleaching: Micronesia, American Samoa. ...
Summer bleaching now appears to be an annual event and bleaching was particularly widespread and prolonged (4 mo) in 1994, 2002 and 2003. Each of these events caused significant coral mortality, particularly among species of Acropora and Millepora. A...


5. Threats Bleaching: Micronesia, American Samoa. ...
Global warming and climate change will impact coral reefs in at least two ways. First, these impacts increase water temperatures which can stress or kill corals; second, they increase the level of dissolved CO2 in sea water which may reduce the growt...


6. Threats Bleaching: Micronesia, American Samoa. ...
Water temperatures in enclosed lagoons are higher on sunny days during low tide when circulation is reduced. Approximately 50% of the staghorn corals in the Airport Lagoon have been killed by bleaching caused by high temperatures in the summers of 20...


7. Threats Bleaching: Micronesia, American Samoa. ...
Climate Change and Coral Bleaching Six major coral bleaching events have occurred around the world since 1979, with massive coral mortality affecting many reefs (11403Hoegh-Guldberg, 19991). Increasing sea surface temperatures (SST) associated with c...


8. Threats Bleaching: Micronesia, American Samoa. ...
Bleaching has been monitored by the TMP in two back reef lagoon pools on Tutuila from December 2003 to the present. The percentage of colony surface with signs of bleaching of staghorn corals (three species of Acropora) in two back reef lagoon pools ...


9. Threats Bleaching: Australia and Papua New Guinea, Australia. LEARNING FROM 2002 GREAT BARRIER REEF BLEACHING EVENT...
The vast extent of the 2002 high temperature anomaly on the Great Barrier Reef (GBR) indicated by the NOAA 50km2 hotspot maps prompted the Australian Institute of Marine Science (AIMS) to use their high resolution SST data to guide site selection ...


10. Threats Bleaching: Australia and Papua New Guinea, Australia. ...
Australia and PNG Bleaching in 1998: The reefs of the Great Barrier Reef have shown substantial recovery after the 1998 bleaching, assisted by the large scale of these reefs and the ready availability of coral larvae on reefs upstream. Some reefs th...


11. Threats Bleaching: Australia and Papua New Guinea, Australia. ...
Ashmore, Seringapatam and Scott Reefs were heavily damaged by the 1998 global bleaching event with major declines (up to 80%) in coral cover down to 30 m. Mass bleaching of corals at Ashmore Reef in 2003 resulted in a further 15% reduction in coral c...


12. Threats Bleaching: Australia and Papua New Guinea, Australia. ...
The first major coral bleaching event recorded at Ningaloo Reef occurred during winter in 2006. An unusual combination of low spring tides, a high pressure system and cold air temperatures resulted in the bleaching of shallow water corals. However, a...


13. Threats Bleaching: Australia and Papua New Guinea, Australia (West). ...
Major coral mortality was detailed on Scott and Seringapatam reefs in the Status 2000 report. Both reefs are very isolated: Seringapatam (S 13°139’ E 122°102’) and Scott (S 14°11’ E 121°148’) and both suffered extreme levels of mortality in 1998 with...


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