Scientists predict challenges for sea life

HONOLULU — Nearly half of Hawaii’s coral reefs were bleached during heat waves 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 on Thursday about what they called unprecedented for Hawaii’s sea life.

National Oceanic and Atmospheric Administration 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.

As for fish, a research team from the University of Hawaii compiled data for 15 years and found a 90 per cent decline in overall catch from the last 100 years, which includes fish such as ulua, moi and oio.

“What we found was pretty overwhelming,” University of Hawaii scientist Alan Friedlander said. “About 40 per cent of the species will be classified as overfished. The correlations are more people, less fish.”

Friedlander suggested expanding marine reserves and said gear restrictions and size limits help, but bag limits and quotas don’t work.

Those who fish argued against more regulations.

“If the fishermen don’t stand up and come down here and fight for fisherman’s rights now, we’ll lose more than we can possibly ever imagine,” said Makani Christensen of the Hunting, Farming and Fishing Association.