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The Deep-Sea Podcast

Thomas Linley
The Deep-Sea Podcast
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  • Bioluminescent Symbiosis with Margaret McFall-Ngai
    Episode Summary In our newest episode, Bioluminescent Symbiosis, we speak with Dr. Margaret McFall-Ngai, an animal physiologist and biochemist about her work with the Hawaiian bobtail squid (Euprymna scolopes) and its partner, the luminous bacterium Vibrio fischeri. McFall-Ngai provides a great synopsis of how this stable beneficial relationship not only creates light, and supports the bobtail maturation, but can also help us understand what could be going on in the light organs of deep-sea animals.     Check out our lovely new website where you can find more detailed notes, images and links to the wider reading.     In this episode… Welcome back to the Deep-Sea Podcast, your punk take on all things deep sea!    The Professor is jetsetting as always, back in Edinburgh after a stint getting all the equipment ready in the Canary Island and is now happily being confused with professional racecar drivers. He will be back in Perth shortly to celebrate the Deep-Sea center paper publishing streak and reconnect with his Capybara spirit animal.    Thom is being called out in New Zealand Parliament, for all the right reasons, and he spent some Deep-Sea conference time in China, avoiding typhoons and pondering science ideas.    We are also celebrating 300,000 podcast downloads of the podcast, and appreciate our fans immensely!    Our guest this month is Dr. Margaret McFall-Ngai, an animal physiologist and biochemist who is a staff researcher at Carnegie Institution for Science’s Division of Biosphere Sciences and Engineering, with her lab stationed at the California Institute of Technology in Biology and Biological Engineering. Dr. McFal-Ngai talks us through her work on the stable beneficial relationship between the Hawaiian bobtail squid (Euprymna scolopes) and its partner, the luminous bacterium Vibrio fischeri. Although technically not a deep-sea species, this relationship and its details might help us understand how deep-sea life creates bioluminescence and the possible life cycle impacts for the creatures involved.    In the news, get ready for updates on: Plenty of Science and Art collaboration news including a new collective, social media feeds and an opportunity for scientists to connect with artists.  Toxic Yellow worms, bright pink snailfish, and chewbacca corals. An immensely important treaty ratification with worldwide impact.  Headteeth, yes you read that right. ‘ On the Discord, we’ve been busy with: Bobtail squid fostercare New Boardgame recommendations Needle felting New community papers and a Juicy Booty Starfish   Support the show The podcast is self-sustaining (just) thanks to our lovely listeners. Thom and Alan take no money for the show. All money is put back into running it. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. We want to say a huge thank you to those patrons who have already pledged to support us: Sophie Bagshaw Laura Check out our podcast merch here!   Feel free to get in touch with us with questions or your own tales from the high seas on: [email protected] We’d love to actually play your voice, so feel free to record a short audio note on our brand new answerphone! https://www.speakpipe.com/deepseapodvoicemail Thanks again for tuning in; we’ll deep-see you next time!   Find out more Social media BlueSky: @deepseapod.com Twitter: @DeepSeaPod Instagram: @deepsea_podcast   Keep up with the team on social media Twitter:  Alan - @Hadalbloke Thom - @ThomLinley  Instagram:  Thom - @thom.linley  Inkfish - @inkfishexpeditions BlueSky: Thom @thomaslinley.com  Alan @hadalbloke   Reference list News  Links from Friends of the Show: Skype a Scientist Products | Support Skype a Scientist with the Squid Facts shop! Deep Sea Biology Society ArtSea Matchmaking Project Unseen Ocean Collective. Unseen Ocean Collective (@unseenoceancollective) • Instagram photos and videos https://bsky.app/profile/unseenocean.bsky.social Swedish Biodiversity Symposium, 21 - 23 October 2025 Deep Sea Art + Science Feed on Blue Sky   News Deep-Sea Worm Produces Orpiment, a Toxic Yellow Pigment Used in Historical Art | Scientific American Mānoa: Chewbacca coral: New deep-sea species spotted in waters off Hawai‘i, Mariana Trench | University of Hawaii News Nations ratify the world's first treaty to protect international waters Ghost sharks grow teeth on their heads to mate | ScienceDaily Descriptions of Three Newly Discovered Abyssal Snailfishes (Liparidae) from the Eastern Pacific Ocean   Discord Updates Applying Deep Learning to Quantify Drivers of Long-Term Ecological Change in a Swedish Marine Protected Area Diatoms | Board Game | BoardGameGeek Juicy Booty Starfish   Join our Patreon to get access to the Discord   Interview Links A lasting symbiosis: how the Hawaiian bobtail squid finds and keeps its bioluminescent bacterial partner A lasting symbiosis: how Vibrio fischeri finds a squid partner and persists within its natural host   Credits Logo image: Dr. Margaret McFall-Ngai Theme: Hadal Zone Express by Märvel
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  • The Deco-Stop: 004 - No Word for Ocean with Yakup Niyazi
    Here’s our fourth episode of The Deco-Stop; a deeper look into the humans behind deep-sea science and technology. We’ve done our science dive, and now it’s time to decompress, and discuss tales at sea, career paths and the social & political aspects of deep-sea science. We have gazed into the abyss, and now it's gazing back at us.   Alan and Thom speak with Yakup Niyazi, a marine geoscientist who first saw the ocean at the age of 27. This fourth instalment in the Deco-Stop series, which focuses on the human element of deep-sea research, is an inspiring episode about one man’s journey from the desert to the bottom of the ocean, his challenges, achievements, and the deep community support he received along the way.    Check out our lovely new website, where you can find more detailed notes, images and links to the wider reading. In this episode… Welcome back to the Deep-Sea Podcast, this month we have a heartwarming Deco Stop episode and are again exploring …‘the human element in deep sea stories..’ - Alan    In our fourth instalment of the Deco-Stop series, Alan and Thom speak with Yakup Niyazi about his journey from the edge of the Asian Desert to the bottom of the ocean. An ethnic Uyghur who grew up in the city of Aksu, at the edge of the Taklamakan Desert in Central Asia, Yakup grew up not only physically but also emotionally and culturally removed from the sea. Yakup's early experiences pose some interesting questions: What is it like to grow up in a culture that doesn’t really have a concept of the ocean, and few descriptive words for the ocean? How do you interact with the ocean if your only experiences are from movies and television?    His incredible story is filled with overcoming adversity, fulfilled dreams, landscapes (and seascapes) that come full circle, and a deeper appreciation of the ocean than most people will ever experience. Despite humble beginnings, Yakup has an impressive roster of achievements and a social circle of supportive connections who only want to see him succeed further.    This inspiring episode reminds us that, regardless of our original circumstances, the world is a vast place filled with incredible opportunities. One day, you might find yourself exiting a hadal submarine,  surrounded by the heartwarming cheers of friends and colleagues, having successfully visited the bottom of the ocean you only saw for the first time at age 27.  “I was a camel before, from the desert, but now I am a shark swimming in the ocean”- Yakup Niyazi Support the show The podcast is self-sustaining (just) thanks to our lovely listeners. Thom and Alan take no money for the show. All money is put back into running it. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. We want to say a huge thank you to those patrons who have already pledged to support us. Check out our podcast merch here!   Feel free to get in touch with us with questions or your own tales from the high seas on: [email protected] We’d love to actually play your voice, so feel free to record a short audio note on our brand new answerphone! https://www.speakpipe.com/deepseapodvoicemail Thanks again for tuning in; we’ll deep-see you next time!   Find out more Social media BlueSky: @deepseapod.com   Twitter: @DeepSeaPod   Instagram: @deepsea_podcast Keep up with the team on social media Twitter:  Alan - @Hadalbloke Thom - @ThomLinley  Instagram:  Thom - @thom.linley  Inkfish - @inkfishexpeditions BlueSky: Thom @thomaslinley.com   Credits Logo image: Georgia Wells Theme: Going Home by Harvey Jones
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  • PRESSURISED: 062 – Mythbusting Ai with Tyler Greenfield
    Welcome to the PRESSURISED version of episode 62, just the science, none of the waffle PRESSURISED: Mythbusting Ai with Tyler Greenfield | The Deep-Sea Podcast | Episode 62 Check out our lovely new website where you can find more detailed notes, images and links to the wider reading. In a follow-up to one of our favourite episodes, Ep 10 Here be Monsters, we bring Tyler Greenfield back for another fascinating chat, this time about Mythbusting in the age of Artificial Intelligence. Our feeds have been filled with images of mermaids, bizarre creatures supposedly from the depths and even strange barnacle washing videos, so we ask Tyler to bring his expertise to weigh in on the prevalence and problems with AI images.  Guest Interview Tyler Greenfield is a paleontologist and cryptozoologist whose blog, Incertae Sedis reveals the truth behind some cryptozoological stories and paleontological mistakes. Since his appearance on episode 10, Tyler has finished his bachelor’s, written a good few papers, appeared on other podcasts (none as good as his debut of course) and is almost done with his masters and is about to start his PhD. He was even a credited consultant on the new (2025) Walking with Dinosaurs.   Support the show The podcast is self-sustaining (just) thanks to our lovely listeners. Thom and Alan take no money for the show. All money is put back into running it. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. We want to say a huge thank you to those patrons who have already pledged to support us: Hugo Shiboski Check out our podcast merch here!   Join our Patreon to get access to the Discord https://www.patreon.com/c/deepseapodcast   Feel free to get in touch with us with questions or your own tales from the high seas on: [email protected] We’d love to actually play your voice, so feel free to record a short audio note on our brand new answerphone! https://www.speakpipe.com/deepseapodvoicemail Thanks again for tuning in; we’ll deep-see you next time!   Find out more Social media BlueSky: @deepseapod.com Twitter: @DeepSeaPod Instagram: @deepsea_podcast Keep up with the team on social media Twitter:  Alan - @Hadalbloke Thom - @ThomLinley  Instagram:  Thom - @thom.linley  Inkfish - @inkfishexpeditions BlueSky: Thom @thomaslinley.com   Reference list The original article for our unfortunate ‘squid’ image  “Colossal Squid Filmed Alive for the First Time”: Juvenile Deep-Sea Monster Captured on Camera in South Atlantic Stuns Scientists - Sustainability Times   How A Golden Nurse Shark Made History   Interview  Tyler’s master’s/doctorate research https://usercontent.one/wp/pecescriollos.de/wp-content/uploads/2022/06/PI-04-Greenfield-2022-List-of-skeletal-material-from-megatooth-sharks.pdf https://usercontent.one/wp/pecescriollos.de/wp-content/uploads/2022/11/PI-06-Shimada-Greenfield-2022-Responses-to-Skeletal-material-from-megatooth-sharks.pdf   AI coelacanth hoax Credits Logo image: AI image originally used by Sustainability Times- AI images are not made by humans and cannot be copyrighted. (Sorry, not sorry)  Theme: Hadal Zone Express by Märvel
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  • Mythbusting AI with Tyler Greenfield
    Check out our lovely new website where you can find more detailed notes, images and links to the wider reading. In this episode… Welcome back to the Deep-Sea Podcast, your punk take on all things deep sea! Join Alan in the Industrial Badlands of the Canary Islands as he cuts holes in ships, while Thom rubs elbows with New Zealand’s political elite. In the news, get ready for updates on: A meeting in Perth to discuss the Red List status of Deep-sea organisms.  Deep-sea desalination techniques Capturing Octopus movements for robot creation Common Starfish with a juicy booty and one country’s massive love for divestreaming How deep-diving beaked whales might be our closest helpful relatives   On the Discord, we’ve been busy with: A new patron, welcome Hugoshibo! Custom-milled keels for a bespoke handmade USV. Critter photos from a ghost diving trip. Debated the necessity of jars in legitimising a science career. Baby Dumbo paper and adorable baby photos shared by Kat.  Deep Sea Lino cut prints happening on canvas. Ceramic hagfish sculptures and blown glass mermaids purses complete with kelp.  NotOurDog made an appearance, and much talk about Oreo cafes and CAKE!   Guest Interview Tyler Greenfield is a paleontologist and cryptozoologist whose blog, Incertae Sedis reveals the truth behind some cryptozoological stories and paleontological mistakes. Since his appearance on episode 10, Tyler has finished his bachelor’s, written a good few papers, appeared on other podcasts (none as good as his debut of course) and is almost done with his masters and is about to start his PhD. He was even a credited consultant on the new (2025) Walking with Dinosaurs.   Support the show The podcast is self-sustaining (just) thanks to our lovely listeners. Thom and Alan take no money for the show. All money is put back into running it. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. We want to say a huge thank you to those patrons who have already pledged to support us: Hugo Shiboski Check out our podcast merch here!   Feel free to get in touch with us with questions or your own tales from the high seas on: [email protected] We’d love to actually play your voice, so feel free to record a short audio note on our brand new answerphone! https://www.speakpipe.com/deepseapodvoicemail Thanks again for tuning in; we’ll deep-see you next time!   Find out more Social media BlueSky: @deepseapod.com Twitter: @DeepSeaPod Instagram: @deepsea_podcast Keep up with the team on social media Twitter:  Alan - @Hadalbloke Thom - @ThomLinley  Instagram:  Thom - @thom.linley  Inkfish - @inkfishexpeditions BlueSky: Thom @thomaslinley.com   Reference list Discord Updates Join our Patreon to get access to the Discord https://www.patreon.com/c/deepseapodcast   News Te Papa Biodiversity Centre Press Release   Deep-Sea Desalination Pulls Fresh Water from the Depths | Scientific American   Deep-sea octopus footage could revolutionize flexible robot design - Earth.com   Humans descend into huge deep-sea canyon for first time ever. What they find is astounding | Discover Wildlife   Flourishing chemosynthetic life at the greatest depths of hadal trenches | Nature   The deepest-diving whales could inspire new treatments for stroke and cancer | National Geographic   Neurodegenerative Diseases: What Can Be Learned from Toothed Whales? - PMC   The original article for our unfortunate ‘squid’ image  “Colossal Squid Filmed Alive for the First Time”: Juvenile Deep-Sea Monster Captured on Camera in South Atlantic Stuns Scientists - Sustainability Times   How A Golden Nurse Shark Made History   Interview  Tyler’s master’s/doctorate research https://usercontent.one/wp/pecescriollos.de/wp-content/uploads/2022/06/PI-04-Greenfield-2022-List-of-skeletal-material-from-megatooth-sharks.pdf https://usercontent.one/wp/pecescriollos.de/wp-content/uploads/2022/11/PI-06-Shimada-Greenfield-2022-Responses-to-Skeletal-material-from-megatooth-sharks.pdf   Tyler’s work on Onchopristis and other sawskates  Blogposts: https://incertaesedisblog.wordpress.com/2020/05/18/onchopristis-is-a-sawskate-not-a-sawfish/ https://incertaesedisblog.wordpress.com/2022/01/12/updates-on-sawskates/ https://incertaesedisblog.wordpress.com/2022/04/12/fact-checking-planet-dinosaurs-onchopristis/ https://incertaesedisblog.wordpress.com/2022/11/25/the-earliest-discovery-of-a-sawskate/ Other papers by Tyler: https://www.mapress.com/bn/article/view/bionomina.22.1.3  https://www.researchgate.net/publication/356911837_Sawskates_Rajiformes_Sclerorhynchoidei_and_the_concept_of_pristification  https://www.researchgate.net/publication/357752727_Sawskates_Rajiformes_Sclerorhynchoidei_and_the_concept_of_pristification  https://mapress.com/mz/article/view/mesozoic.1.2.3  https://www.sciencedirect.com/science/article/abs/pii/S1464343X25000081   Some of Tyler’s work on megalodon in cryptozoology https://www.journalofscientificexploration.org/index.php/jse/article/view/3041 https://zenodo.org/records/7903372 https://zenodo.org/records/13285787 https://www.youtube.com/watch?v=_2CZMfyHQAM&t=528s https://www.researchgate.net/publication/385383987_The_history_of_Otodus_megalodon_in_cryptozoology   Further Reading Onchopristis paper by Eduardo Villalobos-Segura et al   The BBC posted a clip of Spinosaurus hunting Onchopristis from "Walking with Dinosaurs" on YouTube, which anyone should be able to watch. The entire episode should be available for free on the BBC website for anyone in the UK and on the PBS website for anyone in the USA. https://www.youtube.com/watch?v=BBPlZNfemmM https://www.bbc.co.uk/iplayer/episode/m002csns/walking-with-dinosaurs-series-1-2-the-river-dragon https://www.pbs.org/video/the-river-dragon-siyrjh/   AI coelacanth hoax https://sharonahill.com/fake-california-coelacanth/   Three-fingered alien mummies Paleontologist Rodolfo Salas-Gismondi’s skeptical analysis of the mummies.   Former paleontologist Clifford Miles’ website and ‘paper.’  https://web.archive.org/web/20231216230358/https://www.themilespaper.com/ https://web.archive.org/web/20231223232419/https://www.themilespaper.com/_files/ugd/5a322e_bf4471a1eba54eae9290f61265f6e25c.pdf   YouTuber History with Kayleigh made a skeptical video about Miles’ work, which would be more savory to link. Nazca Mummies Are A New ALIEN Species?!   Credits Song of the month: This might be it by Hyphen Logo image: AI image originally used by Sustainability Times- AI images are not made by humans and cannot be copyrighted.  Phone answering machine from Sound Effects Factory  Theme: Hadal Zone Express by Märvel
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  • PRESSURISED: 061 – Trench nutrient cycling with Ronnie N. Glud
    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 deep-sea hotspots with intensified microbial activity and diversity". Learn about: How hadal trenches act as "depocenters" for organic material, leading to microbial activity that's 2 to 6 times higher than in adjacent abyssal sites. The surprising diversity of microbial "generalists" that easily adapt to the immense pressure and low temperatures, aided by viruses that facilitate "horizontal gene transfer". The return of full anaerobic diagenetic processes (like sulphate reduction and anammox) in trench sediments, making them significant sinks for fixed nitrogen. The role of marine snow and seismic activity in efficiently transporting organic matter and, surprisingly, pollutants like PCBs and heavy metals to these remote depths. Why these trenches are not isolated environments but are highly connected to surface ocean processes, even responding to climate-driven changes in primary production.   We also have a surprise blobfish guest!   Support the show The podcast is self-sustaining (just) thanks to our lovely listeners. Thom and Alan take no money for the show. All money is put back into running it. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. We want to say a huge thank you to those patrons who have already pledged to support us: C Wright Check out our podcast merch here!   Feel free to get in touch with us with questions or your own tales from the high seas on: [email protected] We’d love to actually play your voice, so feel free to record a short audio note on our brand new answerphone! https://www.speakpipe.com/deepseapodvoicemail Thanks again for tuning in; we’ll deep-see you next time!   Find out more Social media BlueSky: @deepseapod.com Twitter: @DeepSeaPod Instagram: @deepsea_podcast Keep up with the team on social media Twitter:  Alan - @Hadalbloke Thom - @ThomLinley  Instagram:  Thom - @thom.linley  Inkfish - @inkfishexpeditions BlueSky: Thom @thomaslinley.com Reference list   Flourishing chemosynthetic life at the greatest depths of hadal trenches Element cycling and microbial life in the hadal realm   Credits Theme: Hadal Zone Express by Märvel Logo image: Ronnie N. Glud
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Über The Deep-Sea Podcast

A couple of deep-sea scientists talk everything deep sea! Interesting facts, recent news, myth-busting and interviews with the most interesting people we know.
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