Welcome to the PRESSURISED version of episode 61, just the science, none of the waffle PRESSURISED: Trench nutrient cycling with Ronnie N. Glud | The Deep Sea Podcast | Episode 61 Guest Interview: Nutrient cycling in the hadal trenches (6 to 11 km) and the crucial role they play in global element cycling. Professor Ronnie N. Glud, a leading biochemist and Director of the Danish Centre for Hadal Research (HADAL) talks us through how the trenches, once thought to be barren, are actually "dynamic d...
Aug 16, 2025•32 min
In this episode… Welcome back to the Deep-Sea Podcast, your punk take on all things deep sea! Join Dr. Thom Linley and Professor Alan Jamieson as they dive into the latest from the abyssal plain and beyond. Deep Sea News Highlights: We kick things off with a rethinking of the deep-sea boundary! Professor Alan Jamieson discusses his recent "food for thought" paper that challenges the long-held 200-meter definition, arguing for a more scientifically relevant boundary of 1,000 meters. Find out why ...
Aug 03, 2025•56 min•Ep. 61
Welcome to the PRESSURISED version of episode 60, just the science, none of the waffle PRESSURISED: Mesophotic Reefs with Yi-Kai Tea | The Deep Sea Podcast | Episode 60 In this month's episode, we discuss mesophotic reefs, the deeper extents of coral reefs that have been overlooked in the past. It’s a wild ride that leads us to homemade hyperbaric chambers, the aquarium trade and the world’s most expensive fish. Strap in for a rollercoaster ride as we dive to the limits of scuba. Find out more a...
Jul 17, 2025•31 min
In this episode… Sorry the episode is a little late…. But it’s a bumper! Alan has been checking out hypercars while sharks have been checking out Thom. In the news, we have art, anglerfish, squid and sea spiders. Then an orafish turns up, and we are all doomed. In this month's episode, we discuss mesophotic reefs, the deeper extents of coral reefs that have been overlooked in the past. It’s a wild ride that leads us to homemade hyperbaric chambers, the aquarium trade and the world’s most expensi...
Jul 07, 2025•1 hr 8 min•Ep. 60
eDNA with Georgia Nester | The Deep Sea Podcast | Episode 59 Welcome to the PRESSURISED version of episode 59, just the science, none of the waffle For this month’s interview, we speak with Dr. Georgia Nester, a colleague of Alan’s from the University of Western Australia, about eDNA (Environmental DNA is any genetic material left behind by organisms in an environment). She talks about how several collection methods, eg.: Niskin bottles, sponges and paper filters, located on the deep-sea lander ...
Jun 15, 2025•32 min
eDNA with Georgia Nester | The Deep Sea Podcast | Episode 59 “Exploration is about the place, adventurism is about the person, science is about the question” Professor Alan Jamieson In an episode recorded earlier than usual, which is to say not recorded late, and so perhaps recorded right on time?... we are talking about environmental DNA or eDNA. Thom is headed off to Norfolk Island, north of New Zealand, to characterize the unique life in the region and hopefully not be eaten by sharks. Alan’s...
Jun 06, 2025•1 hr 4 min•Ep. 59
Welcome to the PRESSURISED version of episode 58, just the science, none of the waffle We are still talking about Antarctica, the continent that keeps on giving! 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 geomo...
May 09, 2025•25 min
We are still talking about Antarctica, the continent that keeps on giving! 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 resurfaced; in an exclusive for the podcast, Alan has recorded more amazing Magnapinna (bigfin or elbow squid) footag...
May 03, 2025•57 min•Ep. 58
It’s the last in our run of episodes about Antarctica. We are all back home, and we promise to stop bothering the poor continent. Thom couldn’t talk about it until after the press release, but the Schmidt Ocean Institute cruise he was on had to look at the seabed under a 150-meter-thick ice shelf right as it moved out of the way. We talked to the science leads on that cruise, Patricia Esquete and Sasha Montelli . We learned about the hydrography and glaciology of that region and then the seabed ...
Apr 14, 2025•32 min
It’s the last in our run of episodes about Antarctica. We are all back home, and we promise to stop bothering the poor continent. Alan and Thom discuss returning to an inbox of horrors and readjusting to time away. More cable cutting in our news updates, blobfish being voted fish of the year, and the tongue-eating louse potentially being invertebrate of the year. We don’t want to say we influence the news, but it seems a little spooky. Thom couldn’t talk about it until after the press release, b...
Apr 07, 2025•1 hr 17 min•Ep. 57
Coming to you from an Airbnb, above a ski hire shop, next to a construction site in Ushuia, Argentina… It’s a very special episode as we continue to pester Antarctica. We are here for today is a very special birthday. Our favorite and most elusive colossal squid, Mesonychoteuthis hamiltoni , has been described for 100 years but never seen in its natural environment! We are having a birthday bash for the big girl. Joined by Kat Bolstad of the Auckland University of Technology, Squid Squad, we lea...
Mar 14, 2025•26 min
Coming to you from an Airbnb, above a ski hire shop, next to a construction site in Ushuia, Argentina… It’s a very special episode as we continue to pester Antarctica. Alan checks in from Barcelona for mysterious reasons. We’ll have to get the truth our of him in the future… Lots is going on in the news; deep-sea fish keep turning up, including a little Melanocetus anglerfish - sometimes called a black seadevil. This has had a real impact on people. The media tried to call it a monster, but the ...
Mar 07, 2025•1 hr 10 min•Ep. 56
Our short and to the point PRESSURISED version of episode 55. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/055-antarcticfishes Now it’s Thom’s turn to hit Antarctica. He’s out with the Schmidt Ocean Institute on the Antarctic Climate Connections expedition to the Bellinghousen Sea, to the west of the Antarctic Peninsula...
Feb 15, 2025•32 min
The gang has swapped places, Alan is back in Perth and now it’s Thom’s turn to hit Antarctica. He’s out with the Schmidt Ocean Institute on the Antarctic Climate Connections expedition to the Bellinghousen Sea, to the west of the Antarctic Peninsula. He will record, edit and upload a podcast from there… somehow. This episode may sound a little rougher as a result, but the content is gold as ever… Underrated belter alert. The Prof managed to have some downtime with the family in Antarctica and ha...
Feb 08, 2025•1 hr 17 min•Ep. 55
Our short and to the point PRESSURISED version of episode 54. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/054-antarctica It’s a big one! With The Professor down in Antarctica and Dr Thom not too far behind him, we’ve got an update live from the field. We’re talking about Antarctic submarine dives, below-freezing trench...
Jan 10, 2025•30 min
It’s a big one! With The Professor down in Antarctica and Dr Thom not too far behind him, we’ve got an update live from the field. We’re talking about Antarctic submarine dives, below-freezing trenches, unexpected uses of glacial ice and, of course, the importance of growing a beard… But they’re not alone! This month we’re joined by the incredible Shaylyn Potter (Marine Scientist, Sub Pilot and polar diver) as she talks us through the intricacies and unique nature of this environment. We learn a...
Jan 03, 2025•52 min•Ep. 54
Our short and to the point PRESSURISED version of episode 53. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/053-corals With Dr Thom and The Professor busy prepping for their upcoming expeditions offshore, we had time to squeeze out one more episode before they set sail. We caught up with the legendary Di Tracey from NIWA...
Dec 13, 2024•31 min
With Dr Thom and The Professor busy prepping for their upcoming expeditions offshore, we had time to squeeze out one more episode before they set sail. We caught up with the legendary Di Tracey from NIWA to talk all things deep-water corals. How they live, what makes them different from their shallow water relatives, and how they are adapted to life in the deep dark ocean. Di's long career in deep-sea ecology is also intertwined with her extensive work in making the marine sciences a better plac...
Dec 06, 2024•57 min•Ep. 53
Our short and to the point PRESSURISED version of episode 52. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/052-blackwater-diving This month, we come face to face with deep sea species in our blackwater diving special. Join us this episode as we jump into the fascinating world of blackwater diving, where expert scuba div...
Nov 08, 2024•31 min
This month, we come face to face with deep sea species in our blackwater diving special. Join us this episode as we jump into the fascinating world of blackwater diving, where expert scuba divers plunge into the open ocean at night in order to catch a glimpse of our favourite deep sea faces. We talk with expert blackwater divers to find out what it’s like to venture into the open ocean at night, when deep sea species rise from the depths to feed. How do they capture such remarkable photographs i...
Nov 04, 2024•1 hr 8 min•Ep. 52
Our short and to the point PRESSURISED version of episode 51. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/051-australian-deep With the professor momentarily pinned down in Perth, we thought it would be the ideal moment for him to talk to us all about his local waters, the great Australian deep sea. Did you know that 70...
Oct 11, 2024•26 min
With the professor momentarily pinned down in Perth, we thought it would be the ideal moment for him to talk to us all about his local waters, the great Australian deep sea. Did you know that 70% of Australian waters are deeper than 1000m? Now that’s a lot of deep sea! We hear from the Minderoo-UWA Deep Sea Research Centre’s deputy director, Dr Todd Bond about the huge array of marine geographical features and biodiversity in Australia’s waters. Plus, Alan clears up some ongoing Australian-isms ...
Oct 04, 2024•1 hr 9 min•Ep. 51
We made it to episode 50 and managed to pin down the professor to tell us all about his adventures offshore in the world’s second deepest point: the Tonga trench. Expect to hear all about how the colossal deep-sea expedition is going, including the time Alan piloted a submarine to 2000m, stumbled upon a rarely seen deep-sea squid, and made poor Steve’s life difficult (the onboard media guy). Life on land is also just as chaotic as Alan has been jetsetting all over the world, with his shiny new O...
Sep 13, 2024•42 min•Ep. 50
As it turns out, returning to life on land after a mega deep-sea expedition takes a lot of work! So, whilst we aren't quite ready to share with you our Tonga Trench special, here is a mini-episode to keep you busy until we get back to you with episode 50. We're talking all about SQUIDTEMBER with long-time friend of the show, Kat Bolstad from the AUT Squid Squad. Which squid will reign supreme come the end of the month? It's up to you to decide! You can find the links to vote, plus all of the oth...
Sep 06, 2024•25 min
Our short and to the point PRESSURISED version of episode 49. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/049-chimaera To finish off our cartilaginous fish mini-series, we’re getting into our personal favourite: the chimera. These little oddballs are closely related to sharks and rays but often go unmentioned. They are...
Aug 09, 2024•28 min
To finish off our cartilaginous fish mini-series, we’re getting into our personal favourite: the chimera. These little oddballs are closely related to sharks and rays but often go unmentioned. They are full of intriguing quirks, from lacking a stomach to possessing a reproductive appendage on their head! We speak with Dr Brit Finucci from NIWA, a lover of deep water sharks and champion kicker of heads (she is also a competitive Muay Thai fighter) all about these fascinating fishes and why they a...
Aug 02, 2024•1 hr 7 min•Ep. 49
Our short and to the point PRESSURISED version of episode 48. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/048-sharks We’re back on the elasmobranch train with our latest episode all about deep-sea sharks! We speak with Justin Cordova, co-founder and deputy director of The Rogue Shark Lab all about the fascinating world...
Jul 12, 2024•29 min
We’re back on the elasmobranch train with our latest episode all about deep-sea sharks! We speak with Justin Cordova, co-founder and deputy director of The Rogue Shark Lab all about the fascinating world of deep-sea sharks! What makes them different from their shallow-water relatives? Why do their eyes glow green? How exactly do you get into a career in deep-sea shark research? The Professor is trapped in paradise (somewhere in Fiji) whilst he quarantines before his next big offshore expedition....
Jul 05, 2024•1 hr 3 min•Ep. 48
Our short and to the point PRESSURISED version of episode 23. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/023-deep-aquaria Can we safely bring deep-sea organisms to the surface and keep them alive? Certain species, such as the giant isopods and giant Japanese spider crabs have been kept in aquaria in the past but the n...
Jun 28, 2024•30 min
Our short and to the point PRESSURISED version of episode 47. If you don't have time for the full episode and want to get right to the science without any of our waffle, this is the place to be! Read the show notes and find the full episode here: https://www.armatusoceanic.com/podcast/047-baikal Located in southern Siberia and covered in thick ice for almost half of the year, the colossal Lake Baikal reaches depths of 1600m making it the oldest, and deepest lake in the world. With hydrothermal v...
Jun 14, 2024•29 min
