Ultramarine investigates the latest research, innovations and science news from our oceans and marine environments. <hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
Ultramarine: the science of our oceans and waterways
Claim This Podcastby ConnectSci
14 episodes
Updated Daily
Accepts GuestsHas Sponsors
Podcast Overview
Ultramarine investigates the latest research, innovations and science news from our oceans and marine environments. <hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
Language
🇺🇲
Publishing Since
12/11/2025
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Recent Episodes
May 29, 2026
‘Remarkable’ freshwater turtles face quiet decline
<p>This is an episode from our new podcast, It Starts With... available on <a href="https://podcasts.apple.com/au/podcast/it-starts-with/id1896322692" rel="noopener noreferrer" target="_blank">Apple</a>, <a href="https://open.spotify.com/show/48m98wzx5cXBR5hV8L6Gct" rel="noopener noreferrer" target="_blank">Spotify</a> and <a href="https://connectsci.au/news/pages/podcasts" rel="noopener noreferrer" target="_blank">ConnectSci</a>.</p><br><p>If you enjoy this, check out part 2 of our turtles chat on It Starts With... </p><br><p>Australia’s freshwater turtles are some of the country’s most fascinating and under-appreciated animals.</p><p>They can live for decades, survive incredible injuries, help clean river systems and in some cases even breathe underwater through specialised adaptations. But despite how remarkable they are, turtle populations across Australia are quietly declining and most people do not even realise it is happening.</p><p>In this first of a two-part panel episode, David Boldeman is joined by turtle experts <a href="https://www.une.edu.au/staff-profiles/ers/debbie-bower" rel="noopener noreferrer" target="_blank">Deb Bower</a>, <a href="https://www.jamesuvandyke.com/" rel="noopener noreferrer" target="_blank">James Van Dyke</a>, <a href="https://1millionturtles.com/our-team" rel="noopener noreferrer" target="_blank">Michael Thompson</a> and <a href="https://researchers.westernsydney.edu.au/en/persons/ricky-spencer/" rel="noopener noreferrer" target="_blank">Ricky Spencer</a> to explore why turtles are so important, the surprising biology behind how they survive, and the growing challenges they face.</p><p>Deb, James, Mike and Ricky co-author the book The Mystery of the Missing Turtles with Elizabeth Hale and illustrator James O'Hanlon. The book is published by CSIRO Publishing and is available in <a href="https://www.publishing.csiro.au/book/8222/#author" rel="noopener noreferrer" target="_blank">print or eBook</a>.</p><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
March 23, 2026
4500m deep: remote observatory expands climate knowledge
<p>David Boldeman speaks with CSIRO marine biogeochemist <a href="https://people.csiro.au/S/E/Elizabeth-Shadwick" rel="noopener noreferrer" target="_blank">Dr Elizabeth Shadwick</a> about one of Australia’s most important long-running ocean climate observation programs, the Southern Ocean Time Series south of Tasmania.</p><br><p>Anchored in waters around 4500 metres deep, this remote ocean observatory allows scientists to measure how the Southern Ocean absorbs heat and carbon dioxide from the atmosphere, and how these processes influence the global climate system.</p><br><p>Dr Shadwick explains how carbon dioxide moves from the air into the ocean, how physical circulation and deep water formation can store that carbon away from the atmosphere for decades to centuries, and how the “biological carbon pump” helps move organic carbon into the deep ocean.</p><br><p>The episode also explores the remarkable engineering effort required to deploy and maintain deep-water moorings in harsh Southern Ocean conditions, and what more than two decades of observations are revealing about ocean acidification, natural variability, and the challenge of detecting long-term human impacts in deep ocean ecosystems.</p><br><p><strong>Further reading:</strong></p><ul><li><a href="https://imos.org.au/facility/deep-water-moorings/southern-ocean-time-series-observatory" rel="noopener noreferrer" target="_blank">IMOS Southern Ocean Time Series</a></li><li><a href="https://www.csiro.au/en/about/facilities-collections/mnf/voyages-schedules/multi-voyage-projects/sots-facility" rel="noopener noreferrer" target="_blank">Voyage information and photo gallery</a></li><li><a href="https://aappartnership.org.au/theme-2/" rel="noopener noreferrer" target="_blank">Australian Antarctic Program Partnership</a></li><li><a href="https://theconversation.com/an-underwater-observatory-keeping-the-pulse-of-the-southern-ocean-for-nearly-30-years-yields-fresh-results-257467" rel="noopener noreferrer" target="_blank">Underwater observatory keeps pulse of the Southern Ocean for nearly 30 years</a></li></ul><p><br></p><p>For the latest science news visit <a href="https://connectsci.au/news" rel="noopener noreferrer" target="_blank">https://connectsci.au/news</a></p><p><br></p><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
March 20, 2026
How do you give a whale a hearing test?
<p>Host David Boldeman speaks with ConnectSci science journalist Imma Perfetto about new research that has, for the first time, measured the hearing range of humpback whales in the wild.</p><br><p>The discussion explores why understanding whale hearing is critical, particularly because whales rely heavily on sound for communication, navigation and finding food in the dark ocean environment. </p><br><p>Imma explains that studying Baleen Whale hearing has long been difficult since these massive animals cannot be kept in captivity. This means scientists previously relied on indirect estimates based on anatomy and vocalisation patterns.</p><br><p>Discover how researchers overcame this challenge by adapting a behavioural hearing test used for human infants, broadcasting sound signals to migrating humpback whales off the Queensland coast and observing changes in their behaviour.</p><br><p><strong>For the latest research and discoveries visit </strong><a href="https://connectsci.au/news" rel="noopener noreferrer" target="_blank"><strong>https://connectsci.au/news</strong></a></p><p><br></p><hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>
14 total episodes available
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- What is Ultramarine: the science of our oceans and waterways?
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This podcast updates daily.
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