Â鶹´«Ã½

Skip to main content

Coral bleachings devastate Bali reefs as sea temperatures rise

A starfish crawls along coral reefs, damaged from years of dynamite fishing, in Les, Bali, Indonesia, on April 11, 2021. (AP Photo/Alex Lindbloom) A starfish crawls along coral reefs, damaged from years of dynamite fishing, in Les, Bali, Indonesia, on April 11, 2021. (AP Photo/Alex Lindbloom)
Share
BONDALEM, Indonesia -

Indonesian conservationist Nyoman Sugiarto has been working for 16 years to preserve coral on the reefs of Bali, but the frequency of mass coral bleachings he says is now devastating.

Ninety percent of the corals Sugiarto had nurtured on the reefs near his village in Bondalem, in northern shore of Bali, lost their colour last December.

"It was all white. We were shocked and of course, it also negatively affected the coral we planted. It's not just the natural ones," 51-year-old Sugiarto told Reuters.

When Sugiarto began coral conservation projects in 2008 he was told that coral could retain the living algae which gives it colour for 10 to 20 years.

Yet, the coral reefs off Bondalem were bleached in less than 10 years, he says, blaming warmer sea temperatures triggered by climate change.

Coral bleaching occurs when coral expels the colourful algae living in its tissues. Without the algae the coral becomes pale and vulnerable to starvation, disease or death.

In April, the U.S. National Oceanic and Atmospheric Administration (NOAA) said more than 54 per cent of the reef areas in the world's oceans are experiencing bleaching-level heat stress, the fourth global bleaching event in the last three decades.

Indonesia has roughly 5.1 million hectares of coral reefs and accounts for 18 per cent of the world's total, data from the country's tourism ministry showed.

Coral bleaching in Bali in late 2023 was mainly caused by rising sea temperatures caused by the El Nino phenomenon that hit Indonesia, said Marthen Welly, a marine conservation adviser at the Coral Triangle Center.

Indonesia experienced the most severe dry season last year since 2019 due to the El Nino.

While Indonesia's corals are more resilient and tend to recover faster, Marthen said it will not be enough to withstand the rising ocean temperature.

"It's predicted that the coral bleaching will occur more often, between one or two years with the current temperature," he said, quoting the latest research by the Great Barrier Reef Marine Park Authority and the Australian Institute of Marine Science.

However, Sugiarto says he is determined to continue his campaign to conserve corals, and is advocating coral conservation to younger Indonesians and seeking funds to establish a village community to monitor illegal fishing.

"We feel that we have the obligation to guard the sustainability of underwater life especially corals," he said.

(Reporting by Yuddy Cahya Budiman, Writing by Ananda Teresia, Editing by Michael Perry)

CTVNews.ca Top Stories

opinion

opinion How to make the most out of your TFSA

The Tax-Free Savings Account can be a powerful savings tool and investment vehicle. Financial contributor Christopher Liew explains how they work and how to take full advantage of them so you can reach your financial goals faster.

The CEO of the Ottawa Mission is responding to controversial comments made this week by Premier Doug Ford about those living in homeless encampments that received swift blowback from advocates.

For decades, Melven Jones couldn’t talk about what happened to him as a child. He didn’t even remember it.

Local Spotlight

A tale about a taxicab hauling gold and sinking through the ice on Larder Lake, Ont., in December 1937 has captivated a man from that town for decades.

When a group of B.C. filmmakers set out on a small fishing boat near Powell River last week, they hoped to capture some video for a documentary on humpback whales. What happened next blew their minds.

A pizza chain in Edmonton claims to have the world's largest deliverable pizza.

Sarah McLachlan is returning to her hometown of Halifax in November.

Wayne MacKay is still playing basketball twice at Mount Allison University at 87 years old.

A man from a small rural Alberta town is making music that makes people laugh.

An Indigenous artist has a buyer-beware warning ahead of Sept. 30, the National Day for Truth and Reconciliation.

Police are looking to the public for help after thieves broke into a Lethbridge ice creamery, stealing from the store.

An ordinary day on the job delivering mail in East Elmwood quickly turned dramatic for Canada Post letter carrier Jared Plourde. A woman on his route was calling out in distress.