EP 968: OCEARCH - Great White Shark Research

Chris Fischer is the founder of OCEARCH, a nonprofit organization that conducts groundbreaking research on great white sharks and other apex predators by tracking and tagging sharks to study their migration patterns and behavior. In this conversation, Chris reveals how he went from expedition leader to building one of the world's most recognized shark research organizations, the surprising discoveries about great white shark nurseries and migration patterns that challenge everything scientists thought they knew, and why the future of ocean conservation depends on understanding apex predators. He also shares the story behind some of OCEARCH's most famous sharks, the real risks of the work they do on the water, and how data from their research is changing policies and saving ecosystems. If you've ever been curious about what it actually takes to catch, tag, and release a 16-foot great white shark, this episode will pull you in from the first minute.

From Expeditions to Building OCEARCH

Chris Fischer didn't start out planning to build a shark research organization. He was leading expeditions all over the world, filming content, and working in television when he realized something was missing. The transition from expedition leader to founder of OCEARCH involved recognizing a gap in how apex predator research was being conducted and deciding to build the infrastructure to fill it. What started as a mission to understand great white sharks better became a full-scale operation with a custom ship, a lifting platform designed specifically for safely handling large sharks, and partnerships with scientists around the globe. Chris explains how the early days required proving the concept, gaining trust from the scientific community, and figuring out the logistics of doing research that had never been done at this scale before. The story of how OCEARCH came together starts around the 8-minute mark.

The Discovery of Great White Shark Nurseries

One of the most significant breakthroughs OCEARCH has made is identifying great white shark nurseries in locations where scientists never expected to find them. Chris describes how tracking data revealed that juvenile great white sharks were spending time in specific areas off the coast, behavior that challenged long-held assumptions about where these sharks grow up and how they use coastal waters. The implications go far beyond academic curiosity—understanding nursery locations directly impacts conservation policy, fishing regulations, and coastal management. Chris shares what the data showed, why these nurseries matter for the survival of great white shark populations, and how this discovery is changing the way scientists and policymakers think about protecting critical shark habitat. Chris dives into the nursery discovery and what it means around the 22-minute mark.

What It's Actually Like to Tag a Great White Shark

Catching and tagging a great white shark isn't just difficult—it requires precision, timing, specialized equipment, and a team that knows exactly what they're doing. Chris walks through the process of how OCEARCH actually gets a shark from the water onto their platform, how they keep the animal safe and calm during the data collection process, and what happens in the 15 minutes they have to work before releasing the shark back into the ocean. He also talks about the risks involved, the moments when things don't go as planned, and why the methodology they use is designed to prioritize the shark's well-being above everything else. The details of this operation reveal just how complex and carefully orchestrated every tag deployment has to be. Chris breaks down the tagging process and what can go wrong starting around the 35-minute mark.

How Shark Data is Changing Conservation Policy

The data OCEARCH collects isn't just for research papers—it's being used to influence real-world conservation decisions and policy changes. Chris explains how the tracking information from tagged sharks has led to shifts in fishing regulations, marine protected area designations, and how governments and organizations approach apex predator conservation. He also discusses the challenge of translating scientific data into action, getting buy-in from stakeholders who might be resistant to change, and why understanding the full picture of shark behavior and migration is essential for making informed decisions about ocean health. The ripple effects of this research extend far beyond the sharks themselves, impacting entire marine ecosystems and the communities that depend on them. Chris talks about the policy impact and conservation wins around the 48-minute mark.

Final Thoughts from Tom

I've been following OCEARCH's work for years, and getting to sit down with Chris Fischer for this conversation was something I'd been looking forward to for a long time. What strikes me most about Chris and the organization he built is the commitment to doing the work right—prioritizing the animals, collecting data that actually matters, and making sure the research translates into real-world conservation impact.

The stories Chris shares about specific sharks, the discoveries about nursery locations, and the behind-the-scenes look at what it takes to tag a great white shark are fascinating. But what resonates even more is how this work connects to the bigger picture of ocean health and why apex predators matter to all of us who spend time on the water.

If you care about the ocean, about conservation, or you're just curious about what's really happening beneath the surface when it comes to great white sharks, this episode is absolutely worth your time. Listen to the whole thing.