The Deep-Sea Podcast

So everyone has been pretty busy but we finally got round to finishing off our deep sea habitats series with this episode on submarine canyons. We talk with Dr Teresa Amaro, from the University of Aveiro in Portugal about these hugely important habitats in the deep sea and how they influence the fauna of the continental shelf. Plus, we get to hear the infamous story of when The Professor and Teresa docked in Lisbon during a cruise and Teresa was able to clear out a bar for the whole of the crew.

Plus, the deep sea has been all over the news this month with lots of new papers being released. Magnetic bacteria have been found by the (phenomenally named) HYPER-DOLHPIN ROV, mysterious markings on the seafloor turn out to be face-planting fish, and scientists have been training jellyfish to navigate through assault courses (kinda).

The Professor’s deep sea research lab have also been busy recently with lots of exciting videos coming out from their landers. Plus, one mystery creature has the whole team stumped. Is it a nudibranch? Or is it something else entirely?

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. 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:

Julian Moore | Juli Berwald | Karen Pratt | Susan Casey

Thanks again for tuning in, we’ll deep-see you next time!

DID YOU KNOW WE SELL MERCH?

Check it out here!! And please do send in any pics of you wearing the merch!

Feel free to get in touch with us with questions or your own comments on:

[email protected]

We’d love to actually play your voice so feel free to record a short audio note!

FOLLOW US ON SOCIAL MEDIA!

Twitter: @DeepSeaPod, @ArmatusO

Facebook:DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter: Alan - @Hadalbloke, Thom - @ThomLinley, Georgia - @geeinthesea

Instagram: Georgia - @geeinthesea

Read the show notes and find out more about us at:

www.armatusoceanic.com

FURTHER RESOURCES LINKS

Kelp lightbulb art exhibition at Te Papa

Big eye jellyhead spotted on Alan’s landers

Unknown species spotted on Alan’s landers

Fish have been smashing their faces into the seabed for a while

Fossil spines reveal deep sea's past

Revolutionary deep-sea habitat to be available by 2027

Magnetic bacteria in the deep sea

Learning in Jellyfish

DNA found in filter feeding sponges reveals deep-sea fish community

Incise symposium 2023

CREDITS

Theme – Hadal Zone Express by Märvel

Logo image - NOAA

GLOSSARY

Canyon - Narrow steep-sided valleys that cut into continental slopes and continental rises of the oceans.

Cleft - A divide.

Continental shelf - A continental shelf is the edge of a continent that lies under the ocean. It extends from the coastline of a continent to a drop-off point called the shelf break.

Holothurian - A sea cucumber. They feed by ingesting sediment to obtain the nutrients.

Lander - A piece of deep sea equipment which free-falls to the seafloor and collects data via cameras, collection equipment etc.

ROV - Remotely operated vehicle. These are robots, tethered to the surface vessel which are used to explore an area in the deep sea, whilst being operated from the surface.

Our short and to the point PRESSURISED version of episode 14. 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:

www.armatusoceanic.com/podcast/014-space-pt1

The topic for this double episode is, as ever, the deep sea. But this time we are talking about the deep sea… Innnnnn Spaaaaaaaace! It turns out there is deep sea outside of earth in our solar system in the ice-covered moons of the gas giants. How likely are they to contain deep-sea life completely independent from the life that originated on earth? Thom chats with astrobiologist Kevin Peter Hand, author of Alien Oceans: The search for life in the depths of space, and director of NASA’s Ocean Worlds Lab. What are the best candidates for alien life in our solar system? What could that life be like and why does our own deep ocean provide a perfect test bed?

It turns out that the early versions of the vehicles which may some day explore these ocean worlds are already in development. Thom chats with Casey Machado, Research Engineer at Woods Hole Oceanographic Institution about the Orpheus AUV, the first generation of such vehicle and a new asset to the exploration of our own deep ocean.

Feel free to get in touch with us with questions or your own tales from the high seas on: [email protected]

We are also on: Twitter: @ArmatusO Facebook: ArmatusOceanic Instagram: @armatusoceanic

Read the show notes and find out more about us at: www.armatusoceanic.com

Our short and to the point PRESSURISED version of episode 39. 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:

www.armatusoceanic.com/podcast/039-molluscs

Our very special guest this month is the fantatsic Kerry Walton from the Te Papa Museum in New Zealand. Kerry talks us through the weird and wonderful world of marine molluscs, from the deep to the not so deep, and what makes them fascinating to study.

We learn about the very interesting Chainmail snail (Chrysomallon squamiferum), or as some call it ‘the scaly-foot snail’ (but we all agree that ‘chainmail snail’ is way cooler). Plus we hear all about the unbelievable species of limpets that survive on baleen from whalefalls, and those that live on human hair in estuaries (?!?!).

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show.

Thanks again for tuning in, we’ll deep-see you next time!

DID YOU KNOW WE SELL MERCH?

Check it out here!! And please do send in any pics of you wearing the merch!

Feel free to get in touch with us with questions or your own comments on:

[email protected]

We’d love to actually play your voice so feel free to record a short audio note!

FOLLOW US ON SOCIAL MEDIA!

Twitter: @DeepSeaPod, @ArmatusO

Facebook:DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter: Alan - @Hadalbloke, Thom - @ThomLinley, Georgia - @geeinthesea

Instagram: Georgia - @geeinthesea

Read the show notes and find out more about us at:

www.armatusoceanic.com

FURTHER RESOURCES LINKS FROM KERRY’S INTERVIEW

Kerry Walton’s Research

The snail with a bivalve shell

Chainmail snail

Baleen eating limpet

Historic whalefall communities

CREDITS

Theme – Hadal Zone Express by Märvel

Logo image - Dr Chong Chen

What do punk snails, turning 40 and Titipo the Little Train have in common? Thats right! The latest episode of the deep-sea podcast.

We might be a little late this month but we’ve packed in as much as we can with this one. We’re covering all the latest deep sea news, including new deep sea habitats, octopus gardens and brand new amphipod species. Plus, we hear from Becca Nicholls about her experiences of working as a woman offshore, and how old superstitions are still very much a thing.

Our very special guest this month is the fantatsic Kerry Walton from the Te Papa Museum in New Zealand. Kerry talks us through the weird and wonderful world of marine molluscs, from the deep to the not so deep, and what makes them fascinating to study.

We learn about the very interesting Chainmail snail (Chrysomallon squamiferum), or as some call it ‘the scaly-foot snail’ (but we all agree that ‘chainmail snail’ is way cooler). Plus we hear all about the unbelievable species of limpets that survive on baleen from whalefalls, and those that live on human hair in estuaries (?!?!).

Friend of the show, Susan Casey has also just released her new book The Underworld in which Dr Thom and the Professor make an appearance! In her newest novel, Susan takes us on a journey through the history of deep-sea exploration, from the myths and legends of the ancient world to the scientists who are just beginning to understand the mind-blowing complexity and ecological importance of the quadrillions of creatures who live in realms long thought to be devoid of life. It’s so great to see this book finally out there after years of hard work. Get yourself a copy here. Want to hear Susan’s episode of the podcast? Check it out here.

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. 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:

James Fleming | Charne Lavery | Christopher Rawlins | Shona Riddell

Thanks again for tuning in, we’ll deep-see you next time!

DID YOU KNOW WE SELL MERCH?

Check it out here!! And please do send in any pics of you wearing the merch!

Feel free to get in touch with us with questions or your own comments on:

[email protected]

We’d love to actually play your voice so feel free to record a short audio note!

FOLLOW US ON SOCIAL MEDIA!

Twitter: @DeepSeaPod, @ArmatusO

Facebook:DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter: Alan - @Hadalbloke, Thom - @ThomLinley, Georgia - @geeinthesea

Instagram: Georgia - @geeinthesea

Read the show notes and find out more about us at:

www.armatusoceanic.com

FURTHER RESOURCES LINKS FROM KERRY’S INTERVIEW

Kerry Walton’s Research

The snail with a bivalve shell

Chainmail snail

Baleen eating limpet

Historic whalefall communities

FROM THE REST OF THE EPISODE

Thom’s appearance in the New Species Podcast

Alan’s appearance on the Fish of the Week Podcast

Thom’s appearance on the BBC’s Dark Places talk

NEWS

Exploring the Deep Sea: Ngā Kōrero Webinar Recap (seaweek.org.nz)

Caves and tunnels have been found under hydrothermal vents

Scientists confirm that octopuses use thermal springs in the deep sea to accelerate brooding time

Adorable little midshipmen fry in a depressing story

New genus of deep sea crustacean is established

SOUNDTRACK OF THE MONTH

Titipo the Little Train - Theme Song

Youtube

CREDITS

Theme – Hadal Zone Express by Märvel

Logo image - Dr Chong Chen

GLOSSARY

Baleen - The hair-like filaments found in certain whales which function similarly to teeth, to filter seawater for food.

Cephalopod - A member of the mollusc class consisting of squids, octopus, cuttlefish and nautilus.

Chirality - Chirality is a property of an item that means it cannot be superimposed on its mirror image, as seen in the left and right hands.

Chitinous - Made of chitin (the material that gives strength to the exoskeletons of crustaceans, insects and fungi walls).

Commensal relationship - A long-term biological interaction in which members of one species gain benefits while those of the other species are unaffected.

Conspecific - Belonging to the same species.

Dexterally - Latin for right-turning.

Keratin - A structural fibrous protein that forms hair and nails.

Mollusc - The second-largest phylum of invertebrate animals, after the Arthropoda. Includes snails, clams, osyters, limpets, octopus, squid etc.

Operculum - (In gastropods), it’s the firm structure on a snails foot which acts as a trapdoor to seal the soft body of the snail in it’s shell.

Sinisterly - Latin origin for left-turning.

Our short and to the point PRESSURISED version of episode 13. 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/013-submarine-special

Thom thought he had the podcast to himself, but it turns out the professor is back after 88 days at sea. It’s time for our submarine, or human occupied vehicle (HOV) if you’re posh, special. First we reunite ‘Vegemite and Haggis’ and talk to submarine pilot Tim Macdonald about his and Alan’s undersea adventures around Australia. Manganese nodule fields, gothic cathedrals, and an undersea UFO.

We then speak with Patrick Lahey and Frank Lombardo of Triton Submarines, a bespoke submarine manufacturer, about privately owned submersibles. Initially as luxury pleasure craft but we soon find out that there is a wide range of reasons why someone would want their own sub. Throughout their careers they have had many incredible experiences, like seeing a sixgill shark give birth and communicating with bioluminescent organisms.

The podcast wouldn’t be complete without checking in with Don Walsh. He tells us about the large commercial tourist submarines which have now produced more tourist submariners than the US navy.

Glossary

Autonomous vehicle: A vehicle that doesn’t need a human pilot

Globular: Globe-like, spherical

Human Occupied Vehicle (HOV): Another term for a submarine

Hypoxic: Insufficient oxygen

Thrusters: the propellers on an underwater vehicle that allow it to move

Links

Triton submersibles

Atlantis tourist subs

Our short and to the point PRESSURISED version of episode 38. 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:

www.armatusoceanic.com/podcast/038-jellies

The Professor is back on land and Dr Thom is back from Squid Christmas, what a better time to talk about the squishiest of deep sea critters? We talk with George Matsumoto from MBARI all about gelatinous deep sea species. How do we study them? How on earth can we preserve them or even capture their fragile bodies? Plus, we find out exactly what that curious little blue spiky blob was.

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. 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:

Jay Thompson | Sam Watson | Lucy Goodwin

Thanks again for tuning in, we’ll deep-see you next time!

DID YOU KNOW WE SELL MERCH?

Check it out here!! And please do send in any pics of you wearing the merch!

Feel free to get in touch with us with questions or your own comments on:

[email protected]

We’d love to actually play your voice so feel free to record a short audio note!

FOLLOW US ON SOCIAL MEDIA!

Twitter: @DeepSeaPod, @ArmatusO

Facebook:DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter: Alan - @Hadalbloke, Thom - @ThomLinley, Georgia - @geeinthesea

Instagram: Georgia - @geeinthesea

Read the show notes and find out more about us at:

www.armatusoceanic.com

FURTHER RESOURCES

LINKS

Our Patreon Megan (@studio_mbj) painted supergiant amphipods feeding on some bait based on one of Alan’s images.

MBARI’s website

MBARI's internship program

MBARI's Deep-Sea Guide

MBARI's animals of the deep

MBARI’s seminars

MORE INFO ABOUT GEORGE MATSUMOTO

George’s bio

Matsumoto, G.I., L.M. Christianson, B.H. Robison, S.H.D. Haddock, and S.B. Johnson. 2022. Atolla reynoldsi sp. nov. (Cnidaria, Scyphozoa, Coronatae, Atollidae): A new species of coronate scyphozoan found in the eastern North Pacific Ocean. Animals, 12(6): 742. doi.org/10.3390/ani12060742

Matsumoto, G.I., B. Bentlage, R. Sherlock, K. Walz, and B.H. Robison. 2019. “Little Red Jellies” in Monterey Bay, California (Cnidaria: Hydrozoa: Trachymedusae: Rhopalonematidae). Frontiers in Marine Science 6: doi: 10.3389/fmars.2019.00798

Raskoff, K.A. and G.I. Matsumoto. 2004. Stellamedusa ventana, a new mesopelagic scyphomedusae from the eastern Pacific representing a new subfamily, the Stellamedusinae. J. Mar. Biol. Ass. U.K. 84(4274):1-6.DOI:10.1017/S0025315404008884h

Matsumoto, G.I, K.A. Raskoff, and D. Lindsay. 2003. Tiburonia granrojo, a new mesopelagic scyphomedusa from the Pacific Ocean representing the type of a new subfamily (Class Scyphozoa, Order Semaeostomeae, Family Ulmaridae, Subfamily Tiburoniiae subfam nov.). Marine Biology. 143 (1): 73-77. DOI:10.1007/s00227-003-1047-2

CREDITS

Theme – Hadal Zone Express by Märvel

Logo image - PRESSURISED

The Professor is back on land and Dr Thom is back from Squid Christmas, what a better time to talk about the squishiest of deep sea critters? We talk with George Matsumoto from MBARI all about gelatinous deep sea species. How do we study them? How on earth can we preserve them or even capture their fragile bodies? Plus, we find out exactly what that curious little blue spiky blob was.

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. 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:

Jay thompson

Sam watson

Lucy goodwin

Thanks again for tuning in, we’ll deep-see you next time!

Check out our podcast merch here! Which now includes Alan’s beloved apron and a much anticipated new design...

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!

We are also on:

Twitter: @DeepSeaPod, @ArmatusO

Facebook: DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter:

Alan - @Hadalbloke (https://twitter.com/Hadalbloke)

Thom - @ThomLinley (https://twitter.com/ThomLinley)

Georgia - @geeinthesea (https://twitter.com/geeinthesea)

Instagram:

Georgia - @geeinthesea (https://www.instagram.com/geeinthesea/)

Read the show notes and find out more about us at:

www.armatusoceanic.com

Links:

Kat Bolstad and the Squid Squad

@ALCESonline on twitter

Read about the latest squid-Christmas here:

Fascinating finds from NIWA’s annual squid survey | NIWA

Megan Jones - artist and friend of the show

@studio_mbj on Instagram

Fragments from beyond our solar system found in the Pacific:

https://www.cbsnews.com/boston/news/avi-loeb-harvard-professor-alien-technology-fragments/

Shot Towers:

https://en.wikipedia.org/wiki/Shot_tower

Oarfish is spotted which is ‘twice the size of peter crouch’

https://www.dailystar.co.uk/news/weird-news/divers-discover-huge-deep-sea-30467032

Cookie cutters sharks go to town on a swordfish:

https://www.instagram.com/tkoffshorefishing/?utm_source=ig_embed&ig_rid=f7ed8cc8-e207-4684-9ddd-099458087401

Dumbo octopus seen to migrate opposite to diel vertical migration in order to find prey:

https://phys.org/news/2023-07-deep-sea-imagery-reveal-octopus-behavior.html

I have been playing Fathomvers! From Fathomnet. You can get on as a beta tester

https://www.fathomverse.game/

Guest links - George Matsumoto

MBARI's internship program - https://www.mbari.org/about/careers/internships/

MBARI's Deep-Sea Guide - http://dsg.mbari.org/dsg/home

MBARI's animals of the deep - https://www.mbari.org/education/animals-of-the-deep/

social

https://www.youtube.com/user/MBARIvideo

https://twitter.com/MBARI_news

https://www.tiktok.com/@mbari_news

https://www.linkedin.com/company/monterey-bay-aquarium-research-institute-mbari-/mycompany/

https://www.instagram.com/mbari_news/

papers

Matsumoto, G.I., L.M. Christianson, B.H. Robison, S.H.D. Haddock, and S.B. Johnson. 2022. Atolla reynoldsi sp. nov. (Cnidaria, Scyphozoa, Coronatae, Atollidae): A new species of coronate scyphozoan found in the eastern North Pacific Ocean. Animals, 12(6): 742. doi.org/10.3390/ani12060742

Matsumoto, G.I., B. Bentlage, R. Sherlock, K. Walz, and B.H. Robison. 2019. “Little Red Jellies” in Monterey Bay, California (Cnidaria: Hydrozoa: Trachymedusae: Rhopalonematidae). Frontiers in Marine Science 6:doi: 10.3389/fmars.2019.00798

Raskoff, K.A. and G.I. Matsumoto. 2004. Stellamedusa ventana, a new mesopelagic scyphomedusae from the eastern Pacific representing a new subfamily, the Stellamedusinae. J. Mar. Biol. Ass. U.K. 84(4274):1-6.DOI:10.1017/S0025315404008884h

Matsumoto, G.I, K.A. Raskoff, and D. Lindsay. 2003. Tiburonia granrojo, a new mesopelagic scyphomedusa from the Pacific Ocean representing the type of a new subfamily (Class Scyphozoa, Order Semaeostomeae, Family Ulmaridae, Subfamily Tiburoniiae subfam nov.). Marine Biology. 143 (1): 73-77. DOI:10.1007/s00227-003-1047-2

Credits

Christmas in July - Millington Snow Miser/Heat Miser

Youtube

Theme – Hadal Zone Express by Märvel

Logo image - Schmidt Ocean Institute

Our short and to the point PRESSURISED version of episode 12. 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:

www.armatusoceanic.com/podcast/012-natural-history-collections

Natural history collections, huge archives of carefully curated specimens, are an invaluable tool for the scientific community. They are also a place where the public get to interact with active research and meet scientists. Forget what you’d imagine working in a museum to be like, no two days are the same and both the collections and the talented people who work with them are in constant demand. One day your helping design new swimwear based on shark skin, the next settling an argument at a fishing competition.

If you’re wondering what jobs are out there in science or just curious to know what goes on behind the scenes at a museum, this episode has some surprises for you.

Feel free to get in touch with us with questions or you own tales from the high seas on:

[email protected]

Read the show notes and find out more about us at:

www.armatusoceanic.com

Links

James taking care of the beetles during lockdown

James talking about deep-sea fish.

Shark nostril research

Cookie-cutter shark bites

Museum of New Zealand Te Papa Tongarewa – deep sea video

The Fishes of New Zealand

Our short and to the point PRESSURISED version of episode 37. 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/037-deep-digging

Alan is somewhere in the middle of the Pacific Ocean and Thom has been dissecting fish left right and centre at Te Papa. What better time to talk about deep-sea digging?

After the exciting news last month about the geological cruise that drilled through the Moho (the area where the Earth’s crust meets the mantle), we thought it would be interesting to talk with Andrew McCaig, the co-chief scientist for that expedition. Andrew talks us through the expedition's goals, achievements and the drilling process itself. Why were geologists interested in reaching this area and what exactly is serpentinisation?

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. And we want to thank our most recent patrons:

Tammy Frank | Martin Pollizotto | Ray M | Nicole Vite-Liebl | Anna P | Eric

Thanks again for tuning in, we’ll deep-see you next time!

Check out our podcast merch here! Which now includes Alan’s beloved apron and a much anticipated new design...

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!

We are also on

Twitter: @DeepSeaPod, @ArmatusO

Facebook: DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter:

Alan - @Hadalbloke (https://twitter.com/Hadalbloke)

Thom - @ThomLinley (https://twitter.com/ThomLinley)

Georgia - @geeinthesea (https://twitter.com/geeinthesea)

Instagram:

Georgia - @geeinthesea (https://www.instagram.com/geeinthesea/)

Read the show notes and find out more about us at:

www.armatusoceanic.com

Glossary

Archaea - Microorganisms similar to bacteria in size and simplicity, but are very different molecularly. They’re thought to be the ancient intermediate group between bacteria and eukaryotes.

Astrophysics - Astrophysics is a branch of space science that applies the laws of physics and chemistry to seek to understand the universe.

Atlantis massif - An underwater mountain in the Atlantic Ocean.

Core barrel - A plastic tube which collects the rock core from drilling into the sediment.

Core samples - A long column of rock obtained by drilling into sediment or rock with a hollow steel tube.

Deep biosphere - The expansive ecosystem of microbes which exist deep under the seabed.

Derrick (on a ship) - A machine that is used to move things on a ship (similar to a crane).

Drill cone - A tool which can crush rocks during the drilling process.

Drill pipe - A hollow pipe used in drilling projects.

Fault - A fracture or discontinuity in an area of rock because of big movements in the rock.

Geochemistry - The study of the chemistry of geological materials such as rock, sediment, soil and water.

Goblin shark - A species of deep-sea shark with a retractable jaw.

IODP - International ocean discovery program.

JOIDES Resolution - A drilling ship used by the IODP.

Kaharoa - (RV Kaharoa) Research vessel owned by NIWA in New Zealand. Thom and Alan have conducted many expeditions from this vessel.

Lost city hydrothermal field - An area of hydrothermal vents on the Atlantis Massif, in the Atlantic Ocean.

Magnetite - Magnetite is a mineral and one of the main iron ores.

Moho - Mohorovicic Discontinuity, or "Moho," is the boundary between the crust and the mantle.

Narcomedusae - A type of hydrozoan (a gelatinous cnidarian similar to jellyfish).

NIWA - (National Institute of Water and Atmospheric Research) based in Auckland, New Zealand.

Olivine - The primary component of the Earth's upper mantle, it is a common mineral in Earth's subsurface, but weathers quickly on the surface.

Peridotite - is a dense, coarse-grained igneous rock consisting mostly of the silicate minerals olivine and pyroxene. Most of the mantle is made up of this rock.

Petrology - The branch of geology which explores the compositions, structures and origins of rocks.

Serpentine - Hydrated version of Olivine. Serpentine is a group of minerals that are usually green in colour.

Serpentinisation - The process of minerals such as olivine becoming serpentine.

Shear zones - A zone in the Earth’s crust or upper mantle that has been deformed due to the walls of rock on either side slipping past each other.

Structural geology - The branch of geology which explored the form, arrangement and internal structure of rocks.

Sunfish (Mola mola) - One of the largest bony fish in the world.

Links

Info from the 399 Expedition

Andrew McCaig’s University of Leeds bio

IODP website

Credits

Theme – Hadal Zone Express by Märvel

Logo image: Johan Swanepoel

#Podcast #scicomm #Science #MarineBiology #DeepSea #DeepOcean #AlanJamieson #discovery #Exp399 #AndrewMcCaig #JOIDESresolution #IODP #marinedrilling #deepseadrilling #geology #marinegeology #mantle #petrology #noho #serpentinization #atlantismassif #lostcity #biosphere #microbes #microbialecology #coldseeps #archaea #bacteria #fungi #hydrothermalvents #deepseaspecies #scicomm #deepseacreatures

Alan is somewhere in the middle of the Pacific Ocean and Thom has been dissecting fish left right and centre at Te Papa. What better time to talk about deep-sea digging?

After the exciting news last month about the geological cruise that drilled through the Moho (the area where the Earth’s crust meets the mantle), we thought it would be interesting to talk with Andrew McCaig, the co-chief scientist for that expedition. Andrew talks us through the expedition's goals, achievements and the drilling process itself. Why were geologists interested in reaching this area and what exactly is serpentinisation?

We also hear from two other crew members onboard the JOIDES Resolution during the 399 expedition, Igneous petrologist, Kuan Yu Lin and marine technician Luan Heywood. Kuan and Luan talk us through their experiences of working onboard the research vessel and why expedition 399 was so special.

We also hear from previous guest and great friend of the show, Ashley Rowden (his interview on seamounts can be found in episode 30). We grabbed him quickly before he chaired the deep sea session at the New Zealand Marine Science Society conference and he treated us to a great story of James Cameron’s involvement in a previous conference that Ashley was organising.

We’re really trying to make this project self-sustaining so we have started looking for ways to support the podcast. Here’s a link to our page on how to support us, from the free options to becoming a patron of the show. And we want to thank our most recent patrons:

Tammy Frank | Martin Pollizotto | Ray M | Nicole Vite-Liebl | Anna P | Eric

Thanks again for tuning in, we’ll deep-see you next time!

Check out our podcast merch here! Which now includes Alan’s beloved apron and a much anticipated new design...

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!

We are also on:

Twitter: @DeepSeaPod, @ArmatusO

Facebook: DeepSeaPodcast, ArmatusOceanic

Instagram: @deepsea_podcast, @armatusoceanic

Keep up with the team on social media

Twitter:

Alan - @Hadalbloke (https://twitter.com/Hadalbloke)

Thom - @ThomLinley (https://twitter.com/ThomLinley)

Georgia - @geeinthesea (https://twitter.com/geeinthesea)

Instagram:

Georgia - @geeinthesea (https://www.instagram.com/geeinthesea/)

Read the show notes and find out more about us at:

www.armatusoceanic.com

Glossary

Archaea - Microorganisms similar to bacteria in size and simplicity, but are very different molecularly. They’re thought to be the ancient intermediate group between bacteria and eukaryotes.

Astrophysics - Astrophysics is a branch of space science that applies the laws of physics and chemistry to seek to understand the universe.

Atlantis massif - An underwater mountain in the Atlantic Ocean.

Core barrel - A plastic tube which collects the rock core from drilling into the sediment.

Core samples - A long column of rock obtained by drilling into sediment or rock with a hollow steel tube.

Deep biosphere - The expansive ecosystem of microbes which exist deep under the seabed.

Derrick (on a ship) - A machine that is used to move things on a ship (similar to a crane).

Drill cone - A tool which can crush rocks during the drilling process.

Drill pipe - A hollow pipe used in drilling projects.

Fault - A fracture or discontinuity in an area of rock because of big movements in the rock.

Geochemistry - The study of the chemistry of geological materials such as rock, sediment, soil and water.

Goblin shark - A species of deep-sea shark with a retractable jaw.

IODP - International ocean discovery program.

JOIDES Resolution - A drilling ship used by the IODP.

Kaharoa - (RV Kaharoa) Research vessel owned by NIWA in New Zealand. Thom and Alan have conducted many expeditions from this vessel.

Lost city hydrothermal field - An area of hydrothermal vents on the Atlantis Massif, in the Atlantic Ocean.

Magnetite - Magnetite is a mineral and one of the main iron ores.

Moho - Mohorovicic Discontinuity, or "Moho," is the boundary between the crust and the mantle.

Narcomedusae - A type of hydrozoan (a gelatinous cnidarian similar to jellyfish).

NIWA - (National Institute of Water and Atmospheric Research) based in Auckland, New Zealand.

Olivine - The primary component of the Earth's upper mantle, it is a common mineral in Earth's subsurface, but weathers quickly on the surface.

Peridotite - is a dense, coarse-grained igneous rock consisting mostly of the silicate minerals olivine and pyroxene. Most of the mantle is made up of this rock.

Petrology - The branch of geology which explores the compositions, structures and origins of rocks.

Serpentine - Hydrated version of Olivine. Serpentine is a group of minerals that are usually green in colour.

Serpentinisation - The process of minerals such as olivine becoming serpentine.

Shear zones - A zone in the Earth’s crust or upper mantle that has been deformed due to the walls of rock on either side slipping past each other.

Structural geology - The branch of geology which explored the form, arrangement and internal structure of rocks.

Sunfish (Mola mola) - One of the largest bony fish in the world.

Links

Info from the 399 Expedition

Ashley Rowden’s NIWA bio

New Zealand Marine Sciences Society conference

Andrew McCaig’s University of Leeds bio

IODP website

Luan Heywood’s twitter

Kuan-Yu Lin’s twitter

News

Pregnant goblin shark found

Huge photophores found on giant squid

Living under pressure supposedly heals the human body

New species of jellyfish is discovered with fascinating new features

BBC world oceans day and the ‘alien’ life in the deep

Pantera - Cowboys from hell

Youtube

Spotify

Credits

Theme – Hadal Zone Express by Märvel

Logo image: Johan Swanepoel

#Podcast #scicomm #Science #MarineBiology #DeepSea #DeepOcean #AlanJamieson #discovery #Exp399 #AndrewMcCaig #JOIDESresolution #IODP #marinedrilling #deepseadrilling #geology #marinegeology #mantle #petrology #moho #serpentinization #atlantismassif #lostcity #biosphere #microbes #microbialecology #coldseeps #archaea #bacteria #fungi #hydrothermalvents #deepseaspecies #scicomm #deepseacreatures