Morgan Pratchett and Janice Lough write in The Conversation (7.4.16) about the alarming extent of coral bleaching recently measured on the Great Barrier Reef, in the wake of warming ocean temperatures.
‘One of Australia’s most important natural assets, the Great Barrier Reef (GBR), is being affected by the worst ever bleaching in its history, amid warmer than average water temperatures associated with this summer’s major El Niño event and against a background trend of ongoing ocean warming.
‘With extensive coral bleaching having been predicted as far back as October last year, Terry Hughes at the ARC Centre of Excellence for Coral Reef Studies convened the National Coral Bleaching Taskforce to document the bleaching, both from the air and at close quarters.
‘With our survey work still ongoing, a bleak picture is emerging: more than 1,000 km of the Great Barrier Reef shows signs of significant bleaching. In the worst-affected areas, in the GBR’s previously pristine far north, many corals are now expected to die.’