Half of Hawaii’s corals bleached in 2014-2015 heatwaves as fisheries near shore are declining

Nearly half of Hawaii’s coral reefs were bleached during heatwaves in 2014 and 2015 and fisheries close to shore are declining, a group of scientists told state lawmakers.
The scientists from the Nature Conservancy briefed the lawmakers about what they called an unprecedented situation for Hawaii’s sea life.
National Oceanic and Atmospheric Administration (NOAA) officials said 56 per cent of the Big Island’s coral were bleached, along with 44 per cent along West Maui and 32 per cent around Oahu.
The scientists said more severe and frequent bleaching is predicted.
“In the 2030s, 30 to 50 per cent of the years will have major bleaching events in Hawaii,” said Kuulei Rogers of the Hawaii Institute of Marine Biology.
When ocean temperatures rise, coral expel the algae they rely on for food. This causes their skeletons to lose their colour and appear “bleached.”