The Squid You Eat Is a Mystery, Seafood Mislabeling Explained

Seafood mislabeling is more common than most people realize, and squid might be one of the biggest examples. When you order calamari, you are rarely told which species you are actually eating. With more than 300 squid species in the ocean, and most products labeled simply as "squid," consumers are left with almost no information about the origin, sustainability, or even the species on their plate. Squid fisheries are growing rapidly across the globe, but they are also some of the hardest to track. Squid is often caught on the high seas, processed in multiple countries, and sold in forms like rings or frozen mixes that remove all identifying features. This creates major gaps in traceability and opens the door to mislabeling, illegal fishing, and supply chain confusion. Ocean conservation depends on transparency, and squid shows exactly where the system breaks down. In this episode, we break down why squid is so difficult to trace and what that means for seafood sustainability. Tomorrow, we continue the conversation with marine scientist Marine Cusa, who studies seafood traceability and global squid fisheries. Follow the show to stay informed on ocean science and conservation every weekday. 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  

Seafood is one of the most globalized food systems in the world, but that complexity comes at a cost: traceability. In this episode of How to Protect the Ocean, we break down why it is so difficult to track seafood from the moment it is caught to the moment it reaches your plate. With supply chains spanning multiple countries, processing steps that remove identifying features, and practices like transshipment happening far from oversight, even well-intentioned systems struggle to keep up. We explore how seafood moves through a complex network of fishing vessels, cargo ships, processing plants, and distributors, and why information is often lost along the way. You will also learn about the tools scientists and regulators are developing to solve this problem, including DNA barcoding, satellite monitoring, and digital catch documentation systems. If you have ever wondered whether the seafood you are eating is what it claims to be, this episode will give you the clarity you need to understand the system and its challenges. 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  

What if the fish on your plate isn't the fish you think it is? Scientists around the world have been testing seafood from grocery stores, markets, and restaurants using DNA. The results are often surprising. Studies have found that anywhere from 10 percent to more than 30 percent of seafood products are mislabeled. In some cases, cheaper fish are sold as expensive species. In other cases, endangered fish or illegally caught seafood can enter the market under completely different names. Seafood mislabeling is not just a consumer problem. It can hide illegal fishing, undermine sustainable fisheries, and make it harder for regulators to protect ocean ecosystems. In this episode, we break down how common seafood fraud really is and why it matters for the future of ocean conservation. Follow How to Protect the Ocean for weekday ocean science updates. 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  

Most seafood labels look simple, but they often hide more than they reveal.   When you buy fish at a grocery store, the package might say salmon, tuna, or cod. But those market names can represent dozens of different species, and the label rarely tells you exactly which one you are eating. In many cases, key details like the fishing location, the vessel that caught the fish, or the specific species are missing. In this episode of How to Protect the Ocean, we explore the seafood labeling gap and why it matters. When multiple species are grouped under the same market name, it becomes harder to detect seafood fraud, track fisheries, and ensure sustainable seafood choices. Understanding what labels do and do not tell us is an important step toward improving transparency in the global seafood supply chain. Follow How to Protect the Ocean for weekday ocean science updates.

Ocean microbes quietly power the planet. In this episode, we explore the microscopic organisms that regulate Earth's climate, produce much of the oxygen we breathe, and move enormous amounts of carbon through the ocean every day. These invisible life forms are not just background players in the ocean system; they are central to how the planet works. Synthetic biology is now pushing this idea even further. Dr. José Ángel Moreno-Cabezuelo, a synthetic biologist working in Oxford, is engineering ancient microorganisms called cyanobacteria to capture carbon dioxide using sunlight and biology. His work shows how living systems could become part of the climate solutions we desperately need. Science communication is another major theme of this conversation. After years working inside the scientific system, Dr. Moreno-Cabezuelo began questioning why so much scientific knowledge fails to connect with society. Through his book Heartbeats of Consciousness, he explores the intersection of biology, neuroscience, philosophy, and the human experience, asking a powerful question: if science understands life so well, why does it still struggle to help us understand how to live it? Listen to learn how microbes shape our planet, how biotechnology may help tackle climate change, and why clarity in science might be one of the most important tools we have for protecting the ocean. Website: https://drjoseangelmoreno.com/en/ LinkedIn: www.linkedin.com/in/josé-ángel-moreno-cabezuelo-phd Instagram: @joseangelmc_

Engineered microbes could transform how we fight climate change. Scientists are modifying ancient ocean microorganisms to capture carbon dioxide and produce materials using only sunlight and seawater. These tiny organisms may become living factories capable of creating fuels, plastics, and industrial chemicals without relying on fossil fuels. Cyanobacteria are at the center of this research. These photosynthetic microbes helped oxygenate the Earth billions of years ago, and now scientists are exploring how they can be engineered to produce biofuels, biodegradable plastics, and sustainable industrial compounds. Synthetic biology is opening the door to manufacturing systems powered entirely by sunlight and carbon dioxide. Synthetic biology could reshape how humanity produces materials. If these microbial systems scale successfully, they could reduce emissions from the chemical and plastics industries while capturing carbon from the atmosphere. But engineering living systems also raises questions about safety, environmental impacts, and responsible oversight. Listen to the full episode to learn how ocean microbes could become one of the most powerful climate tools scientists are developing. 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  

Millions of people see the damage caused by oil spills and plastic pollution, but very few know what happens beneath the surface. In the ocean, microscopic organisms begin responding almost immediately. Certain marine microbes can actually consume hydrocarbons and other pollutants, turning toxic compounds into energy. Ocean microbes play a surprising role in pollution cleanup. After the Deepwater Horizon oil spill, scientists observed massive blooms of oil degrading bacteria that rapidly multiplied as they fed on hydrocarbons released into the water. These microbes act as nature's chemical recyclers, breaking down pollutants and helping ecosystems recover. In this episode, we explore how marine microbes break down oil, what scientists learned from major spills, and whether these organisms could help tackle future pollution problems. While microbes can help mitigate damage, they also reveal the limits of nature's ability to absorb human pollution. Share this episode.

Every year, the ocean removes billions of tons of carbon dioxide from the atmosphere. Most people assume whales, mangroves, or seagrass are responsible for this massive climate service. But the largest carbon capture system on Earth is actually microscopic. In this episode of How to Protect the Ocean, we explore the biological carbon pump, a powerful process driven by ocean microbes that captures carbon at the surface and transports it deep into the ocean for centuries. These tiny organisms, including phytoplankton and cyanobacteria, form the foundation of marine food webs and play a critical role in regulating Earth's climate. Without them, atmospheric CO₂ levels could be dramatically higher. We break down how this microbial system works, why it matters for climate stability, and how warming oceans could disrupt one of the planet's most important natural carbon storage mechanisms. Understanding the ocean's smallest organisms might be the key to understanding our planet's climate future. 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    

When people think about ocean life, they imagine whales, sharks, coral reefs, and giant kelp forests. But the vast majority of life in the ocean is invisible. In a single teaspoon of seawater, there can be millions of microbes, including bacteria, archaea, and microscopic phytoplankton. These organisms may be tiny, but collectively they regulate oxygen production, drive nutrient cycling, and influence Earth's climate system. In this episode of How to Protect the Ocean, we explore the hidden microbial world that powers the ocean. You will learn how ocean microbes control the chemistry of seawater, support marine food webs, and even help regulate the global climate. We also look at a major blind spot in ocean conservation. While most policies focus on protecting whales, sharks, and coral reefs, the microbial systems that keep the ocean functioning are rarely considered in marine protection strategies. Understanding ocean microbes may be one of the most important scientific frontiers for protecting the ocean in a changing climate. 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    

Deep sea mining and domesticated cats do not seem like they belong in the same story… but they are. In this episode of the How to Protect the Ocean Podcast, Andrew Lewin sits down with deep-sea ecologist Dr. Andrew Thaler to explore one of the most unexpected stories in ocean science. What starts with mining minerals from the deep ocean quickly turns into a journey through ancient trade routes, maritime history, and the surprising role the ocean may have played in how cats became one of humanity's closest animal companions. Dr. Thaler shares a fascinating narrative that connects deep-sea resources, seafaring civilizations, and the spread of cats across the world. It is a reminder that the ocean has influenced human history in ways we rarely think about, and that even modern debates like deep-sea mining are connected to much bigger stories about exploration, trade, and human society. If you enjoy ocean science, unusual scientific connections, and great storytelling, this episode will give you a completely new way to think about both the deep ocean and the animals that now live in our homes. Listen now to discover how an ocean story thousands of years in the making might explain why cats and humans share such a unique relationship. 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