Should bull sharks be culled? The truth behind shark bites and how people can actually stay safe

Scientific Discoveries are transforming our understanding of the ocean in ways that were once unimaginable. In this episode of Surfacing Secrets: Explore the Ocean. Know the Planet, Richard Dewey, Kohen Bauer, and Gwen Klassen of Ocean Networks Canada share some of the most exciting breakthroughs made possible by real-time ocean monitoring. From mysterious sediment flows to acoustic insights that map marine life, this conversation reveals how cutting-edge technology is unraveling underwater mysteries. Ocean conservation has never felt more urgent or more hopeful. Scientific discoveries discussed in this episode include how the Delta Dynamics Laboratory survived a dramatic tumble, what we're learning from acoustic data in the Salish Sea, and why collaboration between scientists and Indigenous communities is driving innovation. One surprisingly emotional insight came when Gwen shared how listening to the ocean in real time gave her goosebumps and a sense of connection she hadn't expected. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Stereo BRUVs are transforming how scientists study sharks, yet most people have no idea how much we have been missing, and why that matters for conservation. In this episode, we talk with Dr. Kaylee Schmidt about how underwater camera systems are uncovering sharks in places humans rarely go, changing what we think we know about abundance, behavior, and ecosystem health. Shark research has long depended on divers, fishing surveys, and tagging, but those methods can miss species that avoid people or live deeper than we can reach. Kaylee explains how stereo BRUVs allow researchers to study sharks without baiting hooks or disturbing animals, giving a clearer picture of how sharks actually use their habitats. Marine biodiversity takes center stage when Kaylee shares how this technology is being used beyond sharks, including in deep sea environments where data is scarce. One surprising insight from the episode is how often sharks appear in places once assumed to be nearly empty, highlighting how limited human observation has shaped flawed assumptions about ocean life. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Marineland Beluga Whales are once again at the center of a national debate, and the outcome could shape the future of captive whales in Canada. Marineland Beluga Whales face uncertain futures as government decisions, export permits, and welfare concerns collide, raising a critical question, are these whales being protected or simply moved out of sight? Beluga whales in captivity reveal a deeper problem that goes beyond one facility. This episode breaks down the latest updates on relocation plans, the role of federal permits, and why animal welfare groups argue that sending belugas to other aquariums is not a true solution. The discussion explains what sanctuaries are, why they matter, and why timing is becoming a life-or-death issue for these whales. Beluga whale sanctuary Canada becomes the emotional core of this episode. One surprising and powerful insight is that euthanasia was openly discussed as a possible outcome if permits were denied, a reality that shocked advocates and accelerated government action. This moment exposes how fragile the protection of captive whales really is, and why long-term sanctuary solutions are urgently needed. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Will the US move towards Deep-Sea Mining? This question is no longer theoretical, it is urgent, political, and deeply consequential for the ocean. As pressure grows to secure critical minerals for batteries and clean energy, the US is facing a decision that could permanently alter the deep ocean. In this episode, we break down what deep-sea mining really means, why it is suddenly back in the spotlight, and why scientists are sounding the alarm about what we stand to lose before we even understand it. Deep sea mining explained through real testimony, expert insight, and clear examples that cut through the noise. You will hear how mining the ocean floor could disrupt ecosystems that have taken millions of years to form, and why regulation has not kept pace with industry ambition. One of the most surprising insights in this episode is that the deep ocean is being considered for industrial extraction even though scientists still do not know how many species live there, or how long recovery would take, if recovery is even possible. Is deep sea mining dangerous for marine life and for people who rely on a healthy ocean? This episode connects the dots between geopolitics, green energy promises, and environmental risk, showing how decisions made far from the ocean could have irreversible consequences beneath the surface. The emotional core of this conversation is clear: once damage is done in the deep sea, there may be no way to undo it. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Should bull sharks be culled? Shark bites spark fear, outrage, and calls for action, but the real question is whether killing sharks actually makes people safer. In this episode, we unpack why bull shark incidents happen, what science tells us about risk, and why quick emotional reactions can lead to decisions that do more harm than good. Bull shark attacks are tragic and serious, but one surprising insight from this episode is that bull sharks often bite because they cannot clearly see what is in front of them. Murky water, river runoff, and warm summer conditions dramatically increase confusion for these sharks, making humans more vulnerable without the sharks intending to target people. Living with sharks means accepting that the ocean is not a controlled environment. The emotional moment in this episode comes from recognizing that fear-driven solutions like culling may feel satisfying, but they do not reduce risk and can damage ecosystems that keep oceans healthy and predictable for everyone. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Ethical climate storytelling asks a hard question that most climate conversations avoid: why do so many people shut down when the science is clear and the stakes are high, and how do we tell stories that actually move people to care and act. In this episode, we explore how ethical climate storytelling can reconnect audiences to climate issues without fear, guilt, or manipulation, and why this approach matters for protecting the ocean and the communities that depend on it. Climate communication strategy often defaults to urgency and catastrophe, but our guest explains why that approach can backfire. Drawing on real-world media campaigns and public engagement work, Maya Lilly of The Years Project breaks down how human-centered narratives help people see themselves inside the climate story, especially when it comes to ocean warming, sea level rise, and coastal impacts. Hope-based climate communication emerges as one of the most emotional and surprising insights of the episode. Maya shares how ethical storytelling is not about sugarcoating reality, but about restoring agency. Listeners will hear why people are more likely to protect the ocean when they feel respected, informed, and capable, rather than overwhelmed or blamed. Connect with Maya: IG: @yearsofliving and @GunghoEco FB: @yearsofliving TikTok: @theyearsproject YT:  @Years and @GunghoEco LinkedIn: TheYearsProject BlueSky: @theyearsproject.bsky.social and @mayalilly.bsky.social Threads: @yearsofliving and @GunghoEco X:  @YearsofLiving @GunghoEco   Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Who Decides Offshore Drilling is the central question behind decisions that shape coastlines for decades, yet are often made by people who never have to live with the consequences. This episode breaks down how offshore drilling decisions are made far from the coast, why public input often feels symbolic, and how risk quietly shifts from decision-makers to coastal communities. Offshore oil and gas leasing sounds like a technical process, but the impact is deeply human. Through firsthand voices from across the US, this episode reveals a surprising truth: once an area is leased, the future of that ocean space is largely locked in, even if drilling happens years or decades later. That long delay creates distance, distance that protects power while leaving communities to absorb the risk. Coastal communities and offshore drilling collide in ways that rarely make headlines. One emotional insight stands out clearly: the people closest to the ocean are often the first to notice damage, the first to respond to disasters, and the last to be heard when decisions are made. This episode brings those voices forward and asks what real accountability should look like. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Cook Inlet offshore oil drilling is being pushed forward through new federal lease plans, but the people who live closest to these waters are asking a hard question: who really benefits, and who takes the risk. In this episode, we unpack why Cook Inlet matters so deeply for salmon, beluga whales, and coastal communities, and why offshore drilling decisions made far from Alaska can have permanent local consequences. Alaska offshore oil and gas leasing has shaped the state's economy, politics, and identity for decades, and that history still influences how people talk about jobs, revenue, and energy security today. Our guests from Cook Inletkeeper explain how past promises of prosperity created long-term dependence, and why many Alaskans are now questioning whether repeating that model makes sense in a changing climate and economy. Community opposition to offshore drilling emerges as one of the most emotional and surprising themes of this conversation. Despite assumptions that Alaskans broadly support expansion, many residents, including fishers and families tied to the water, are worried about spill risk, wildlife impacts, and being locked into fossil fuels just as the rest of the world starts to move on. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Distant water fishing fleets are operating just beyond national borders, pulling massive amounts of squid from the ocean with almost no rules, and this episode asks a simple but urgent question: can the new high seas treaty stop ecological collapse before it is too late? Off the coast of Argentina, hundreds of vessels gather in international waters to exploit a regulatory loophole, threatening a keystone species that supports whales, seabirds, and entire food webs. What happens here does not stay here, it affects global fisheries, biodiversity, and the seafood on our plates. High seas squid fishing has exploded in recent years, with satellite data showing fishing effort increasing dramatically while oversight remains weak. In this episode, I break down how squid fuel marine ecosystems, why their short life cycle makes them especially vulnerable, and how unregulated fishing in places like Mile 201 puts the entire South Atlantic at risk. I also explain what the new high seas treaty actually does, what it cannot do, and why enforcement and political will matter more than headlines. High seas treaty 2026 is often described as historic, but one surprising and deeply emotional insight from this episode is that the treaty does not automatically stop overfishing. It creates a toolset, not a safety net. Without coordinated action, transparency, and pressure on distant water fleets, the ocean could continue to be emptied in plain sight, even under a new global agreement. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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    

Hidden costs of seafood are shaping the global tuna industry in ways most people never see, and this episode asks why it matters for the ocean, workers, and anyone who buys seafood. Hidden costs of seafood raise a simple but uncomfortable question: if an industry cannot survive without public money, can it truly be sustainable, and who is paying the price behind the scenes? Tuna fishing subsidies are at the center of this story. Drawing from new peer-reviewed research, this episode breaks down how fuel tax exemptions and government support keep European tuna fleets operating, even when they run operational losses. Without these subsidies, many fleets would struggle or collapse, revealing an economic model that depends on taxpayers while fishing pressure on the ocean continues. Sustainable seafood myths are challenged by one surprising and emotional insight from this episode: some tuna fleets appear profitable on paper while actually losing money every year without subsidies, meaning the public absorbs the financial risk while ecosystems and fishing communities absorb the consequences. This changes how we should think about sustainability, accountability, and what responsible seafood really means. Support Independent Podcasts: https://www.speakupforblue.com/patreon Help fund a new seagrass podcast: https://www.speakupforblue.com/seagrass Join the Undertow: https://www.speakupforblue.com/jointheundertow 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