058: Antarctic Ice-Seabed Interactions

May 2nd, 2025

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Does ice impact the deep seabed? We discuss the ways that Antarctic glaciation affects the deep-sea habitat around Antarctica.

This month on the podcast Alan and Thom discuss trying to stop working momentarily, constructing a treehouse, and acquiring a shark.

In the news, we rattle off a list of newly discovered species with some very cool (but hard to pronounce) names. There has been a lot of squiddy news. Footage of divers swimming with a giant squid has resurface; in an exclusive for the podcast, Alan has recorded more amazing Magnapinna (bigfin or elbow squid) footage and the biggest bit of news, the colossal squid has been seen alive in its natural habitat for the first time! Thom and Kat were part of the press conference.

Megalodon (the not-deep-sea and very extinct shark) has been reassessed based on what we do know. It was likely longer and slimmer than we thought, and we have estimations for their speed and size at birth. We also have a new coelacanth population and a classic car found in the deep.

For this month's interview, we speak with Devin Harrison - Marine Geoscientist/Postdoctoral Researcher at Kelpie Geoscience - Devin is a postdoctoral research fellow at Kelpie Geoscience.

His research utilises high-resolution topographic models of the seafloor and complementary geophysical and geospatial datasets to understand the geomorphic evolution and process landform relationship of the deep sea and the continental shelves.

Devin is particularly interested in the glacial geomorphological record and the evolution of glacial environments from the last glacial maximum (~20-25 thousand years ago) to the present day.