Skip to main content

Episode 803: Maug's Caldera: A Natural Laboratory

In the remote Pacific, the islands of Maug rise out of the sea. Formed by an ancient volcano, shallow hydrothermal vents are found close to coral reefs inside the submerged caldera. These vents emit levels of CO2 that can be expected in the world’s oceans by the end of the century, making these waters a natural laboratory for scientists studying the impacts of ocean acidification on coral reefs.

A Co-Production with:


Meet the experts featured in this episode.

Special Thanks:

Image Credits

Changing Seas would like to thank the following individuals and institutions who kindly allowed their footage, images and other media to be used in this production:

Emily Donham
Bigelow Laboratories for Ocean Sciences

Ian Enochs
National Oceanic & Atmospheric Administration 

Nuno Gracias
University of Girona, Spain

Art Gleason
Brooke Gintert
Pamela Reid
University of Miami RSMAS

Sandin Coral Reef Ecology Lab 
Scripps Institution of Oceanography
University of California, San Diego

NOAA Office of Ocean Exploration and Research

Special Thanks:

Carolina Cuadra

Matthew Gill

Robert Lee, Jr.

Michelle Moore

Nicole Pedersen

Karen Richason

Funding for this episode of Changing Seas was provided by: