Episodes

  • The secret life of dams: small waters shape changing climate

    The secret life of dams: small waters shape changing climate
    Dec 19 2025
    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. In this episode of the ConnectSci Podcast, host David Boldeman speaks with Dr Martino Malerba, freshwater ecologist and Senior Lecturer at RMIT University, about the surprising science behind these small but significant water bodies.

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    29 mins
  • Saving the Sydney Seahorse

    Saving the Sydney Seahorse
    Dec 15 2025

    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, endangered species is the only seahorse listed as threatened in Australia, and Patrick shares the incredible science and conservation efforts working to save it.



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    23 mins
  • How to keep Sydney Harbour Clean

    How to keep Sydney Harbour Clean
    Dec 11 2025

    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 Boldeman are joined by Tom Batrouney, environmental advocate and community lead at Seabin, and Ashley Hayes, Community Social & Environmental Impact Lead at SEA LIFE Sydney Aquarium. Together they unpack how citizen awareness, targeted tech, and collaborative responsibility are key to reclaiming Sydney Harbour’s health.



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    39 mins