The Oceanographic Podcast

Join Rob Hutchins and Eva Cahill on The Weekly Catchup as they dive into four major stories shaking up the oceanographic newsroom this week.

In this episode, we break down a groundbreaking 35-year study off the coast of Plymouth that reveals how climate change and shifting ocean chemistry are entirely rewiring the base of the marine food web. We discuss how these changes are causing smaller plankton to thrive while larger species decline, creating a domino effect that spells trouble for commercial fish stocks, seabirds, and marine mammals.

Plus, we cover:

• Suing for Sanctuary: Why environmental law group ClientEarth is taking Spain to court over its failure to prevent widespread whale and dolphin bycatch.

• Ancient Wisdom, Modern Solutions: How a traditional Indigenous shell-scattering technique is successfully shielding vulnerable marine life from increasingly acidic seas.

• Australia designates seabed site to store carbon pollution

In this Oceanographic Roundtable discussion, community editor Rob Hutchins sits down with the filmmaking team behind BBC’s landmark series Blue Planet III: Series Producer Lara Bickerton, alongside episode producers Yolly Bossinger (Tropical Seas) and Natasha Fellows (Open Ocean), to pull back the curtain on four and a half years of filming across 100 countries.

From pioneering low-angle camera rigs to uncovering never-before-filmed marine behaviours and crafting an ethereal score with Hans Zimmer’s team, the producers reveal the technological grit, scientific collaboration, and storytelling choices required to build on a 25-year natural history legacy.

In this episode:

• The Weight of a 25-Year Legacy: The producers reflect on following in the footsteps of The Blue Planet and Blue Planet II, the pressure of keeping secrets across 4.5 years of production, and handling audience expectations.

• Tackling Ocean Crisis with Hope: Why the series rejected sheer "doom and gloom" to spotlight resilience, from documenting coral bleaching intimately through a clownfish’s perspective to the comeback of menhaden fish that brought humpback whales breaching directly in front of the Manhattan skyline.

• Miniature Tech & Ground-Level Perspectives: How custom micro-cameras mounted on pole tripods allowed crews to film at eye level with tawny nurse sharks hunting right onto the beach, while capturing the comedic charm of waving mangrove crabs.

• Decoding Unseen Animal Behaviours: How marine scientists helped verify unprecedented open-ocean interactions, including rough-toothed dolphins bubble-blasting to peel pilot fish away from sea turtles, and loggerhead turtles ingeniously exploiting offshore fish pens.

• The Eerie Soundscape of the Deep: Inside the soundtrack crafted by Hans Zimmer and the Bleeding Fingers Music team (including Tom Lucas and Laurentia Editha), featuring the rare Cristal Baschet, an unusual glass-rod instrument used to produce the series' haunting, watery acoustics.

• The Master at Work: What it felt like to watch Sir David Attenborough bring the footage to life in the recording booth at nearly 100 years of age.

In this episode of the Oceanographic Podcast, Eva Cahill sits down with marine scientist Dr Ben Harris of the Convex Seascape Survey to explore the misunderstood world of the soft-sediment seafloor, and why the vast mudscapes beneath our waves hold the key to the ocean's future.

In this episode:

• The 27-Million-Square-Kilometre Blind Spot: Why continental shelf soft sediments, spanning an area larger than North America, are living animal forests rather than barren oceanic deserts.

• Wiped Clean Before We Understood It: How historic bottom trawling flattened Britain’s seafloor before science could systematically map it, forcing fisheries to adapt to downgraded catches as finfish vanished.

• The Carbon Vault Beneath Our Feet: Inside the complex sediment biomes storing global carbon, why heavy trawling scrambles those signals, and what recovery looks like inside protected zones like the Arran MPA.

• The Carbon 'Trojan Horse': Why marine conservation cannot afford carbon tunnel vision, and why restoring ecosystem resilience and native oyster reefs must take priority over carbon accounting.

• The Reality of 'Paper Parks': Why destructive fishing is still permitted inside protected waters, and where marine scientists must draw the line when policy fails ocean conservation.

Join Rob Hutchins and Eva Cahill on The Weekly Catchup as they dive into four major stories shaking up the oceanographic newsroom this week.

In this episode, we break down Mexico’s alarming decision to slash the vaquita’s gillnet-free zone by 86%, a move conservationists warn turns its back on the species and could sound the final death knell for the world’s most endangered marine mammal.

Plus, we cover:

• Sinking an American Icon: Why the legendary SS United States, which once carried US presidents and Marilyn Monroe across the Atlantic, is being transformed into the world’s largest artificial reef off the Florida coast.

• Brazil’s High-Stakes Comeback: What Lula’s historic fourth-term victory over far-right Flávio Bolsonaro means for the Amazon, international climate diplomacy, and ocean protections.

• Indigenous-Led Guardianship: How Chumash heritage advocates helped California establish its first new marine protected areas in more than a decade, expanding the state’s coastal network.

  
  

Articles Mentioned in This Episode:

• Mexico 'Turns Its Back' on Remaining Vaquita With New Fishing Rules

• Record-Breaking Ship That Carried Presidents and Marilyn Monroe to Become World's Largest Artificial Reef

• Lula Secures Fourth Term in Historic Victory Over Far-Right Flávio Bolsonaro

• Chumash-Led Protections Help California Expand Ocean Network

As world leaders gather in Armenia for COP17, the ocean finally has a dedicated stage, but are ambitious biodiversity targets translating into real-world protection?

From hollow fisheries commitments and the battle to save global kelp forests to securing sustainable futures for coastal communities, what will it actually take to bridge the gap between global promises and ocean action?

Join Oceanographic Magazine and a panel of leading marine experts live from Yerevan as they dissect the headlines, uncover critical gaps in national biodiversity plans, and reveal what must happen next for marine conservation to succeed.

In this episode of the Oceanographic Podcast, Rob Hutchins sits down with explorer and photographer Niccolò Banfi to uncover what happens when you trade a corporate job in Milan for 5,600 miles of stormy seas, remote Pacific atolls, and secret Arctic research vessels.

In this episode:

• Quitting Corporate Life for the High Seas: How a Milan fashion marketer survived 10-meter waves in the Drake Passage on a 1900s tall ship to find his true purpose.

• Living remote: What life is really like on Pitcairn Island, one of the most isolated rocks on Earth, home to just 39 residents.

• Turning Pearl Farms into Coral Nurseries: How locals on the remote Cook Island atoll of Manihiki are repurposing underwater pearl infrastructure to fight coral bleaching.

• On Board a NATO Arctic Research Vessel: Inside the High N 26 mission mapping the Arctic ocean floor down to 6,000 meters and tracking viruses hidden in melting waters.

• The Plastic Crisis on Rapa Nui: How Easter Island is fighting a relentless tide of ocean plastic and building traditional Polynesian Vaka catamarans to educate the next generation.

Join Rob Hutchins and Eva Cahill on The Weekly Catchup as they dive into four major stories shaking up the oceanographic newsroom this week.

In this episode, we break down the UK government’s controversial decision to greenlight the Jackdaw gasfield, a move critics say leaves the UK’s climate ambitions in tatters while threatening fragile marine ecosystems.

Plus, we cover:

• The 16-Year Disaster: Why the legacy of the infamous BP oil spill is still silently decimating deep-sea life in the Gulf of Mexico today.

• The 'Big Five' Fish Monopoly: How just five species took over the British dinner table, and what our seafood obsession means for ocean health.

• A Ray of Hope: The miraculous record-breaking breeding comeback for seabirds in the Solent following devastating bird flu outbreaks.

  
  

Articles Mentioned in This Episode:

• UK's Climate Ambition in Tatters as Jackdaw Gasfield Gets Go-Ahead

• BP Oil Spill Continues to Decimate Marine Life 16 Years On

• How the 'Big Five' Fish Took Over the British Dinner Table

• Solent Seabirds Enjoy Record Breeding Year After Bird Flu Recovery

After vanishing for decades, massive Atlantic bluefin tuna are returning to UK seas in record numbers. Why are they back now, and what does it tell us about our changing oceans?

Join Oceanographic Magazine and a panel of top marine experts as they uncover the story behind one of the most unexpected marine comebacks of the century.

In this episode of the Oceanographic Podcast, Eva Cahill sits down with world-renowned geopolitics expert Professor Klaus Dodds to uncover the hidden battleground shaping the future of our polar oceans.

In this episode:

• How China transformed into a "polar science superpower" and why it matters.

• The secret battle hiding behind penguin conservation and scientific research.

• Trump's bid for Greenland and the escalating security race at the poles.

• Why protecting our northern and southern oceans is critical to the planet's survival.

In this episode, Oceanographic's editor Eva Cahill dives headfirst into a shocking new joint report from Oceana and the Environmental Justice Foundation (EJF) that exposes the brutal, hidden reality of Europe's bycatch crisis.