coral reef

Pauline Fiene / The Nature Conservancy

Protecting coral reefs is a goal for many organizations around the state and the world. There are environmental restrictions and other regulations to protect the reefs. And now there's a new concept -- reef insurance.

D. Ramey Logan / Wikimedia Commons

Prior to the COVID-19 crisis and shutdown, Hanauma Bay on Oahu drew approximately 3,000 people every day. The City & County of Honolulu closed the marine preserve back in March and the public has been asking when it will be reopened.

California Coastal Commission/UC Davis via AP

HAGATNA, Guam — Scientists in Guam are trying to determine how to remove a man-made underwater mountain built out of vehicle tires 50 years ago.

National Park Service

Coral Satellite Imaging; Voices of Science Podcast: Coral Bleaching in the Pacific; Misconduct in Kealoha Plea; The Legend of Ko'olau Play; Ethnic Diversity in Local Dining


On Wednesday, the nine justices of the nation's highest court will hear oral arguments in a case accusing Maui County of violating the federal Clean Water Act. 

Evidence from the Hawaii Institute of Marine Biology shows that corals are already naturally adapting to higher temperatures. But the rate of increase may be too rapid for them to keep up.

Shreya Yadav/Madin Lab/Hawaii Institute of Marine Biology

In Oahu’s Kaneohe Bay, researchers with the Hawaii Institute of Marine Biology are engaged in a one-of-a-kind effort to document coral reefs as they undergo bleaching.

Tim Tricas

University of Hawaii biologist Tim Tricas has been listening and recording the fantastic sounds of Hawaii's coral reef inhabitants; Kuleana filmmaker Brian Kohne tells us about the challenges of marketing an independent film; an interview with Fred Barberia, KTUH's first GM, on the station's 50th anniversary; the latest on the adoption scheme targeting vulnerable Micronesian mothers.

Men's March Against Violence

March against domestic violence recruits businessmen; Paralympian curler offers life lessons; Hot water bleaches coral reefs; UH professor takes deep dive down Mariana Trench


Pearl Harbor Shipyard Centennial; DNA Medicare Fraud; Rail Power Issues; Analyzing eDNA In Water Samples; Water Sitting at Bottom of Kilauea Crater

OIST / CC BY 2.0 / Flickr

MANGILAO, Guam — A third of Guam's coral reefs have died because of rising ocean temperatures, researchers said.

Upsilon Andromedae / CC BY 2.0 / Flickr

On this edition of Bytemarks Café, Burt learns about a rare coral that was successfully grown in the lab, and outplanted in Kāneʻohe Bay as part of Coralpalooza. Find out how lab cultivation helped to accelerate their growth and how they will be monitored once established in the wild. 6:30 PM on HPR-1.


It’s now commonly known that many chemicals commonly found in sunscreen are harmful to coral reefs. But that link wasn’t established until 2015 and many challenges to mitigating the negative effects remain.

midwinter/Creative Commons

  KAILUA-KONA — A Hawaiʻi county has closed a bay to prevent disruption of coral spawning that scientists predicted would occur over two days.

kahunapulej/Flickr/Wikimedia Commons

Hawaiʻi's coral reefs that dissipate offshore wave energy and act as undersea breakwaters provide more than $835 million in flood protection for the state annually, according to a new study.

Keisha Bahr
Keisha Bahr

The ARTS at Marks Garage is under new management.  The mission is still:  To transform downtown Honolulu with the power of the arts.  It was a nice mix of creative brains and skillful hands the other night at the opening of SymbioSEAS—an art-sci (art and science) collaboration.

David Slater / The Nature Conservancy

Coral reefs in West Hawaiʻi are showing signs of recovery from the global El Niño event in 2015.

Wise Hok Wai Lum / Wikimedia Commons

There’s been a lot of focus on climate change this week. Part of that story involves coral reefs. And it’s not all bad news. There’s a project underway in Australia that could help restore reefs around the world.

XL Catlin Seaview Survey

A team of scientists gathered today at the East-West Center to talk about our crisis coral and the need to stage an intervention. To some it’s “Doctor Doolittle meets CSI” because researchers believe they can’t just document the change on the reefs, they have to act to save them. We talked to Bob Richmond director of the UH Kewalo Marine Laboratory who is part of the Council of reef experts about the meeting.

Bytemarks Café: The DLNR's Coral Pyramids

May 23, 2018
Department of Land and Natural Resources

Today on Bytemarks Café, Burt and Ryan will find out about a fast-growing coral that the Department of Land and Natural Resources uses to repopulate the reefs. They will hear how these corals are given the 5-star treatment and then out planted as coral pyramids.

eutrophication&hypoxia / Flickr

Coral reefs are a focus for many scientists here in Hawai‘i and around the world. A new government study of Japan’s largest coral reef confirms what scientists have been saying. HPR’s Bill Dorman has more in today’s Asia Minute.

Joe Shlabotnik / Flickr

Oxybenzone may soon become a thing of the past. Yesterday, Hawaiʻi lawmakers approved a state-wide ban on the sale of sunscreen containing the chemical. HPR Reporter Kuʻuwehi Hiraishi has this story.

Reef Safe Sunscreen on Maui

Dec 28, 2017
JeepersMedia / Flickr
JeepersMedia / Flickr

This week is a busy one for Hawai‘i’s visitor industry. And while another record year is expected for tourism, more people at the beach means plenty of sunscreen ends up in the ocean. There’s now a movement in Maui County to ban sunscreen containing chemicals that scientists say are harming the reefs. We get more from HPR contributing reporter Colleen Uechi of The Maui News

Sustainable Reefs and Aquarium Fish

Jun 1, 2017
Flickr / NOAA Photo Library
Flickr / NOAA Photo Library

A bill awaiting Governor Ige's signature would end the commercial collecting of Hawaii reef wildlife for the aquarium trade. The legislature passed SB 1240, requiring the Department of Land and Natural Resources to develop a plan that factors in sustainability when it comes to Hawai'i reef fish and the aquarium trade. It's a bill strongly backed by Robert Wintner—president of Snorkel Bob's Hawai'i, who contributed this commentary to Hawai'i Public Radio.

Wikimedia Commons
Wikimedia Commons

Preserving ocean coral is a priority for many scientists and others around the world, including here in Hawai‘i. One challenge is rising ocean temperatures—but another one can be certain aspects of tourism. HPR’s Bill Dorman has more in today’s Asia Minute.

Wikimedia Commons
Wikimedia Commons

An assessment of Hawaii’s reef fish populations shows that 11 species are possibly overfished.

Wikimedia Commons
Wikimedia Commons

  We’ll explore what happens when groundwater enters the coastal reef ecosystem. We’ll learn about the effects of land-based pollutants, such as fertilizers and chemicals in wastewater, as they find their way to the ocean.

Mālama Olowalu
Mālama Olowalu

The State Department of Transportation has scrapped a plan to construct a seawall in West Maui following a week long protest.  The plan was to build a wall of boulders near mile marker 16 along the shoreline of Honoapi‘ilani highway to protect the road from erosion.  But environmentalists say the wall would threaten coral reefs and surf breaks by altering the natural flow of sand.  They added that it would ruin beach access, and not truly alleviate the road’s safety issues.  

The Conversation: Friday, June 24th, 2016

Jun 24, 2016
Marine Conservation Science Institute

Coral Reef Symposium; Studying Sharks; Collusion Among Contractors for School AC; Rising Stars Showcase

Coral Reef Symposium: Hugh Possingham