
Sign up to save your podcasts
Or


Based on Podcast App listening data
Somewhere on the ocean floor right now, a coral colony has been growing since before the Great Pyramid of Giza was finished. One deep-water black coral off the coast of Hawaii has been dated at 4,270 years old, making it one of the oldest living skeleton-building organisms known to science. A single pass of a bottom trawl net can wipe out that kind of habitat in seconds, and it's a fight that's still being decided this very year at the United Nations.
In this episode, Andrew breaks down why bottom trawling is such a hard problem to regulate. It's rarely the fish stock itself that takes the worst damage. It's the seafloor habitat those fish depend on to hide, feed, and survive, and that habitat can take centuries to rebuild once it's gone. Andrew traces the policy fight behind this back to a failed 2004 push for an outright ban on high seas bottom trawling, the 2006 compromise that did pass (UN Resolution 61/105), and the recurring cycle of reviews since then that have kept tightening the rules bit by bit.
That fight isn't a closed chapter. A UN preparatory workshop on bottom fishing's impact on vulnerable marine ecosystems was held in July 2026, feeding into a full General Assembly review later this year, with advocates pushing for a firm, time-bound end to seamount trawling on the high seas by 2027. Andrew connects it to Canada's own back-and-forth over fish habitat protection in the Fisheries Act, and sets up Friday's interview with the guest who chaired the UN fisheries negotiations that started this whole process.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
A grad student faces a simple choice: write another term paper, or take a summer internship. She takes the internship, gets assigned to sea turtles, and thirty years later she is in the room for some of the most consequential ocean policy agreements ever negotiated. This episode traces that career from the beginning, and it starts with a realization that shapes everything that follows: sea turtles do not read maps. They cross every border humans have drawn, which means protecting them requires countries to cooperate, not compete.
Andrew walks through the arc of this career step by step. It starts with an anthropology degree and a grad-school detour into public policy, an internship with an NGO in Washington, D.C., then called the Center for Marine Conservation, and a growing understanding that migratory ocean species force international cooperation whether countries want it or not. From there the story moves through the State Department, more than a decade on international tuna negotiations, and eventually a role at the International Sustainable Seafood Foundation (ISSF). Along the way, Andrew connects the story to his own winding path from marine biology researcher to ocean communications manager, and makes the case that careers in ocean conservation rarely move in a straight line.
This episode kicks off a five-part week on How to Protect the Ocean. Tuesday looks at corals nearly as old as the pyramids and the fight to save them. Wednesday covers the High Seas Treaty and the moment the gavel dropped. Thursday breaks down seafood policy and what retailers need to know about what shoppers actually want. Friday brings the full interview with the person at the center of this week's story.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
Deep sea mining is no longer theoretical. In this episode, Andrew sits down with Matthew Gianni, co-founder and Political and Policy Advisor of the Deep Sea Conservation Coalition, for an in-depth look at what's actually happening on the seafloor and in the negotiating rooms deciding its fate. Matthew spent years as a commercial fisherman, including five years as a deep sea trawlerman off the Central California coast, before moving into ocean conservation with Greenpeace International and eventually co-founding the DSCC to fight destructive bottom trawling on seamounts. That history shapes everything he has to say about what's coming next.
The conversation covers the science and the politics in equal measure: what seamount trawling studies off Tasmania revealed about how quickly deep coral ecosystems can be destroyed, why the deep sea is far from the "biological desert" some mining proponents describe, and the 2024 discovery of "dark oxygen" being produced by the very polymetallic nodules that mining companies want to extract. Matthew also walks through the current state of play at the International Seabed Authority, including a fresh update from the July 2026 meetings in Kingston, Jamaica, the leadership change from Michael Lodge to Leticia Carvalho, the legal fight over The Metals Company's push for a US mining license outside ISA authority, and why the economics of nodule mining may not add up even on the industry's own numbers.
Whether deep sea mining moves forward is still being decided right now, and Matthew makes the case for why the decisions being made in 2026 will shape the deep ocean for generations. This is a dense, detailed update for anyone trying to understand where deep sea mining policy actually stands, straight from someone who has been in the room for over a decade.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
In September 2021, Time magazine profiled Gerard Barron, CEO of The Metals Company (TMC), and his push to mine the Clarion Clipperton Zone (CCZ), a stretch of international seabed between Hawaii and Mexico. In that profile, Barron called the CCZ "the most desert-like place on the planet," arguing that mining the deep sea does less environmental harm than mining a rainforest because there's supposedly so little life down there to disturb. That single line has been repeated for years as justification for deep sea mining. Andrew puts it to the test.
The science tells a very different story. A 2016 survey of the CCZ measured real, on-site abundance of larger seafloor animals and found meaningful densities of megafauna, plus hundreds of individuals per square meter of smaller sediment-dwelling species. A 2023 species inventory led by the UK's Natural History Museum and funded by the Pew Charitable Trusts documented more than 5,000 species in the CCZ, with the large majority entirely new to science. New species are still turning up, including a batch of amphipods described in 2026. And a landmark study on nodule-dependent species found that more than half of the megafauna living in these nodule fields rely directly on the nodules themselves, the very rocks TMC wants to extract, as the only hard surface available to grow on in an otherwise soft, muddy seafloor.
Andrew walks through what happens when the nodules are removed, why TMC appears to be pursuing a path through the Trump administration rather than the International Seabed Authority, and what's at stake for communities near the Northern Mariana Islands, where a new mining lease is moving forward despite more than 60,000 public comments in opposition. This is a fact-check episode: quote first, then the evidence, so listeners can judge for themselves whether "desert" is an accurate description of one of the most biodiverse deep-sea ecosystems studied to date.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
Why would someone who watched one deep-sea mining company collapse go back and try it again? That's the question at the center of this episode, and it's not hypothetical. It happened, with the same industry, some of the same licenses, and the same person at the center of it: Gerard Barron, now CEO of The Metals Company (TMC), one of the most prominent and best-funded companies pushing to start commercial deep-sea mining today. This isn't framed as an accusation against Barron specifically. It's a documented sequence of decisions, and by the end, you can decide for yourself what the motive looks like.
Before TMC, Barron was an early investor and promoter behind Nautilus Minerals, a company that pursued seafloor mineral deposits off Papua New Guinea. Nautilus raised hundreds of millions of dollars, including investment from the PNG government itself, before its costs spiraled, it was delisted from the Toronto Stock Exchange, and it filed for bankruptcy in 2019. Barron reportedly sold his shares years before the collapse, walking away with a return as high as $30 million, while PNG's government and environment were left holding the damage. Years later, people connected to Nautilus, including Barron, regrouped as Deep Green, which became The Metals Company, and picked up exploration rights in the Clarion Clipperton Zone that had once belonged to Nautilus.
This episode traces that arc from Adstream to Nautilus to TMC, including TMC's push to trigger the ISA's two-year rule, its more recent pursuit of a US mining permit outside the International Seabed Authority process entirely, and Barron's consistent argument that mining the seabed is less environmentally damaging than mining on land. Whether that comparison holds up, and what it means that the environmental cost of Nautilus's failure barely factors into how Barron talks about it now, is the thread running through the whole story.
Takeaways
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
Seamounts are underwater mountains that rise at least 1,000 meters from the seafloor without breaking the surface, and they punch far above their weight biologically. Topographic upwelling pulls cold, nutrient-rich water up their slopes, fueling plankton blooms that draw fish, sharks, seabirds, and marine mammals, while their rocky surfaces give slow-growing corals and sponges a rare hard place to root in an otherwise soft-sediment deep sea. Roughly one in five seamount species are endemic, found nowhere else on Earth, which is why scientists call them oases in the deep sea.
That's exactly what made a pair of Australian studies so consequential. In 1997, researchers led by Tony Koslow and Karen Gowlett-Holmes of CSIRO Marine Research surveyed seamounts south of Tasmania to test whether bottom trawling for orange roughy was damaging habitat that had taken centuries to form, and whether a proposed marine reserve would actually protect it. What they found on heavily fished seamounts, compared to lightly fished or untouched ones, was stark: stripped reef, collapsed biomass, and far fewer species per sample. A 2009 follow-up study by Althaus and colleagues went further, analyzing tens of thousands of video frames and photos across 25 seamounts, and found coral cover reduced by roughly two orders of magnitude on trawled sites, with no sign of recovery even five years after trawling stopped.
Those findings are part of what pushed Matthew Gianni, a former deep-sea fisherman, to help found the Deep Sea Conservation Coalition and push for international protections against high seas bottom trawling. This episode walks through what seamounts are, what the research actually found, and why damage this far down might be effectively permanent on any timescale that matters to us.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
Before he ever sat across a table from UN delegates, Matthew Gianni spent 10 years working as a commercial fisherman up and down both US coasts. Gillnetting for Spanish and king mackerel in Florida. Bottom trawling off central California, New England, and Florida for sole, redfish, hake, sablefish, shrimp, and other groundfish. Hook-and-lining for salmon and albacore tuna in Oregon and California. Running pots for Dungeness crab and dredging for deep sea scallops on Georges Bank. In today's episode, I trace how that decade on deck, watching coral and glass sponges get shoveled back overboard from trawls that dragged the seafloor a thousand meters down, planted the seed for a career that would eventually take him to the UN General Assembly.
Two fights as a working fisherman pushed Matthew toward advocacy. First, he helped organize fellow fishermen to halt a $110 million plan to dump San Francisco Bay dredge spoils directly onto prime fishing grounds off the Southern California coast, a fight that eventually moved the disposal site off the continental shelf. Second, he represented the fishing industry in efforts to block new offshore oil and gas leases along the central California coast. Both wins showed him what organized advocacy could accomplish, and they set him on a path toward Greenpeace International, where he helped launch the international fisheries campaign, worked on the UN's 1991-1992 moratorium on high seas driftnet fishing [VERIFY dates], and eventually ran Greenpeace's global Ocean Program from Amsterdam.
In the early 2000s, Matthew co-founded the Deep Sea Conservation Coalition, an international coalition of organizations working to protect deep sea biodiversity from harmful activities, where he now serves as political and policy advisor. What started as a fight against deep sea bottom trawling on seamounts has, since 2014, expanded to include deep sea mining, an industry Matthew argues is moving to tear into the seabed before scientists even have a baseline understanding of what lives there. This is the first episode in a week-long series on the deep sea, building toward my full interview with Matthew, airing Friday.
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
Science communication has a blind spot: it keeps putting the same faces in front of the microphone. In this episode, Andrew talks with Amy Weldon, host and executive producer of the podcast Blue Collar White Coat, about why she built an entire show around the people science coverage usually skips. Amy spent 15 years in science communications, starting at the National Aquarium in Baltimore, and now uses that background to track down the electricians, dive supervisors, ship repair technicians, and life-support operators who keep ocean and space research running.
The conversation covers why Amy chose podcasting over blogging or short-form video to reach people who aren't already interested in science, what changed between her first and second season of guest outreach, and how she gets nervous first-time interviewees comfortable enough to open up. Andrew and Amy also compare notes on the mechanics of podcasting itself: editing habits, the reality of "pod fade," and what Joe Rogan's career actually teaches other podcasters (hint: it's not SEO). They close with a preview of Amy's stacked second season lineup and a shared preview of November's International Marine Conservation Congress in Edinburgh.
If you've ever wondered who actually keeps a NASA clean room running, or why the person who cleans your aquarium's fish tanks might have a better story than the PhD next to them, this episode is for you. Check out the podcast: https://www.youtube.com/@BlueCollarWhiteCoat
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
YouTube has quietly become one of the best platforms for ocean science communication, and in this episode Andrew breaks down exactly why. Fresh off yesterday's 2,000-episode milestone and the new Pisces Oceans licensing agreement, Andrew explains why he's diving back into YouTube after stepping away last spring, including the launch of a brand new daily show, Ocean Decoded Live.
Andrew walks through his own history with video, from the early days of Speak Up for Blue TV through burnout, a rebrand, and now a fresh start under Ocean Decoded. He breaks down why YouTube's search-driven discovery beats subscriber-driven platforms for reaching new audiences, how B-roll and AI-assisted visuals solve the storytelling limits of audio-only podcasting, and why going live and unscripted brings back an authenticity that AI-written scripts were starting to erode.
The episode closes with a practical look at YouTube's two-tier Partner Program, how the ad revenue and fan-funding splits actually work, and two real-world case studies in ocean science: Kristian Parton's Shark Bytes channel and KPassionate's marine mammal content. Andrew also previews tomorrow's interview with Amy Weldon of Blue Collar White Coats and shares where you can catch him talking workflow at IMCC8 in Edinburgh this November.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
Today marks episode 2000 of How to Protect the Ocean, and Andrew is taking a break from the usual format to look back at how this show came to be. From an accidental start in 2010 to a name change driven by search engine optimization, to over 3 million downloads across 11 years, this episode traces the full arc of the podcast's history.
Andrew also opens up about how podcasting reshaped his career. What started as a side project outside of work hours led to TV documentary appearances, podcast hosting offers including a multi-year run on the Toronto Zoo podcast, and eventually the job offer that became his dream role. Along the way, he helped launch an estimated 20 to 25 other podcasts, including Beyond Jaws, the shark science show he co-hosts with Dr. David Ebert.
The biggest news of the episode is the announcement that How to Protect the Ocean is now officially licensed to Pisces Oceans, the same organization where Andrew now works as their ocean communications manager. He explains why this partnership matters, what it means for the quality of future episodes, and how it sets up a bigger ocean impact going forward, including the launch of new shows across the Pisces podcast network.
Takeaways:
Support Independent Podcasts: https://www.speakupforblue.com/patreon
Need help with your ocean non-profit, company, or project? Get the help you need with Pisces Oceans Inc.: https://www.piscesoceans.ca Connect with Speak Up For Blue Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube
From the publisher's feed
Ranked by our users in the last 21 days

3,201 Listeners

608 Listeners

12,188 Listeners

395 Listeners

418 Listeners

161 Listeners

359 Listeners

24,539 Listeners

3,415 Listeners

112 Listeners

15,702 Listeners

179 Listeners

2,833 Listeners

2,458 Listeners

779 Listeners