Ocean Trenches Explained with Prof. Alan Jamieson

Ocean trenches are Earth’s deepest habitats—and they’re full of life. This episode is a guided dive into the hadal zone (6,000–11,000 meters), where tectonic plates create steep trenches that plunge toward the mantle. Learn what trenches are geologically, what conditions are like at full ocean depth (cold, pressure, darkness), and why the deep sea isn’t a single ecosystem—each trench is its own world. You’ll also get myth-busting on how “the abyss” shows up in pop culture, plus an inside look at the technology that makes trench science possible: multibeam mapping, baited landers, and human-occupied submersibles. Finally, we explore the big research questions scientists are asking about biodiversity, evolution, and connectivity across the deepest ocean.Support our science communication by joining us on Patreon or sending us a gift on PayPalSpecial thanks to the Monterey Bay Aquarium for sponsoring this episode.Episode Guest: Professor Alan JamiesonListen to the Deep Sea Podcast!Browse Professor Jamieson’s publications on Google ScholarVisit the Hadal Zone Deep Sea Research Center and follow their work on InstagramEpisode Transcript and more information on the Pine Forest Media websiteFollow Pine Forest Media on Instagram @pineforestmediaHosted, produced, and edited by Clark Marchese Cover art by Jomiro EmingTheme music by Nela RuizFind some more Pine Forest Media podcasts belowListen to Plastic Podcast on Spotify or Apple PodcastsListen to South Pole on Spotify or Apple PodcastsListen to Something in the Water on Spotify or Apple Podcasts Hosted on Acast. See acast.com/privacy for more information.