The podcast The Ultramarine: the science of our oceans and waterways is produced by ConnectSci, the digital content platform of CSIRO Publishing, an Australia-based publisher of science and technology. The podcast launched in December 2025 with its first episode. David Boldeman is the host of the podcast and interviews experts on the latest research, innovations, and science news from oceans and marine environments.
Podcast URL: CONNECTSCI Ultramarine Podcast
Episode Guide
| No. | Episode | Title | Guests | Listen to | Published | Description Excerpt | Tags |
|---|---|---|---|---|---|---|---|
| 5 | S01-E05 | How do we measure sea level rise? | Ellen Phiddian | 2026-01-14 | This episode explains how sea level rise is measured — not just that it’s happening. It demystifies the tools, the data, and the validation process … | Altimetry, Climate change, Data validation, Earth observation satellites, Ice sheet melt, Mean sea level, Relative sea level, Satellite altimeters, Sea level budget, Sea level rise measurement, SWOT satellite, Thermal expansion, Tide gauges, Tides, Vertical land motion | |
| 4 | S01-E04 | How you can help save the Great Barrier Reef | Sean Daly | 2026-01-04 | In this Ultramarine episode of the Connect Sci Podcast, host David Boldeman speaks with Sean Daly from Citizens of the Reef about how students, teachers, … | Citizen science, Climate change impacts, Coral bleaching, Coral reef conservation, Crown-of-thorns starfish, Great Barrier Reef, Marine biodiversity, Marine conservation education, Ocean warming, Reef monitoring, Reef restoration, Student participation, Tourism and reefs, Underwater photography | |
| 3 | S01-E03 | The secret life of dams: small waters shape changing climate | Martino Malerba | 2025-12-19 | Australia has more than 1.7 million farm dams, and together they play a far greater role in climate and environmental health than most people realise. … | Biodiversity refuges, Carbon credits, Climate mitigation, Farm dams, Fencing livestock, Freshwater ecology, Greenhouse gas monitoring, Methane emissions, Nitrous oxide, Nutrient runoff, Pondi sensor, Teal carbon, Water quality, Wetland restoration, Win-win solutions | |
| 2 | S01-E02 | Saving the Sydney Seahorse | Patrick Noble | 2025-12-15 | Host David Boldeman explores the underwater world of the Sydney Seahorse (Hippocampus whitei) with marine expert Patrick Noble from Sea Life Sydney Aquarium. This small, … | Animal husbandry, Aquarium breeding program, Coastal habitat loss, Conservation release, Endemic species, Marine conservation, Marine protected areas, Mysid shrimp diet, Seahorse reproduction, Seahorse hotels, Sydney Harbour, Sydney seahorse, Temperate marine species, Volunteer conservation, Water quality impacts | |
| 1 | S01-E01 | How to keep Sydney Harbour Clean | Tom Batrouney; Ashley Hayes | 2025-12-11 | Dive into the crucial issue of ocean pollution and explore real-world solutions with two passionate advocates for marine conservation. Ultramarine hosts David Boldeman and Steven … | Beach clean-up volunteering, Behaviour change, Circular economy, Clean-up Australia Day, Coastal pollution, Data-driven conservation, Environmental education, Marine animal rescue, Marine conservation advocacy, Microplastics, Ocean pollution, Plastic-free living, Seabin technology, Stormwater runoff, Sydney Harbour |