March 19, 2026

The Squid You Eat Is a Mystery, Seafood Mislabeling Explained

The Squid You Eat Is a Mystery, Seafood Mislabeling Explained
The Squid You Eat Is a Mystery, Seafood Mislabeling Explained
How To Protect The Ocean
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.

Transcript

0:00 When you order calamari on a restaurant, the menu usually tells you one thing, it's squid. We know that calamari is squid. But scientists know that there are more than 300 species of squid living in the Ocean, and most seafood labels do not tell you which one you're eating. Even on a menu, it won't tell you what type of squid you're eating, but when you order fish, it'll tell you what is salmon, or it'll tell you a specific salmon or cohost salmon or the type of cod like it's black cod or atlantic cod. There's all these different types of species of each of the types of foods that you're eating. Why aren't they identifying squid? And most seafood labels don't tell you which one you're eating. So in many cases, restaurants, grocery stores, and importers simply label a product as squid or even calamari.

0:40 So the squid on the plate could come from multiple species, different oceans, and completely different fisheries. This is the How to Protect the Ocean Podcast, your weekday Ocean news updates. If you care about staying informed about the Ocean every weekday, hit that follow button right now so you don't miss tomorrow's story. Key question for today. Why is squid one of the hardest seafood products to trace? Shouldn't be. We know a lot about squid. We know that there's over 300 species. We should be able to track where those species go. We have the technology, we have the ability. We just don't do it. So seafood products are often heavily processed before they reach consumers. They're commonly sold as calamari, squid rings, fried seafood platters, frozen seafood mixes.

1:25 Processing removes most identifying features 'cause a lot of times you're just using rings. That's what you see when you have calamari or seafood rings, right? Grilled calamari. So for example, when a whole squid is caught, scientists can identify the species using features such as body shape, fin size and placement. Tentacle length and color patterns. But when squid is cut into rings or chopped into pieces, those features obviously disappear. So once it is breaded and fried as calamari, visual identification becomes nearly impossible. I mean, you look at Calamari, all it is is just the bread and maybe you see the rings, but you can't tell unless you actually get the DNA, whether it's a specific species or not, even for trained seafood expects. So this means seafood buyers and restaurants often rely entirely on paperwork provided by the suppliers.

2:10 And I question sometimes whether they actually care. And if that information isn't incomplete or inaccurate, it becomes very difficult to verify. So you can have something on the sheet saying it's one squid. It's actually another squid. But you have no idea of knowing unless you do the DNA barcoding. So the research using DNA barcoding has shown that seafood products often contains species that are not listed on the label. In several studies, squid products marketed as a single species were found to contain multiple species mixed together. How does that happen? And why does that happen? Squid fisheries are some of the fastest growing fisheries in the world. They involve hundreds of species in industrial fleets from multiple countries, large fishing operations on the High Seas.

2:51 That makes it very difficult to stop. Some squid fisheries operate far from their national coastlines, particularly in areas of the Pacific and the South Atlantic. These distant water fleets can include dozens or even hundreds of vessels operating together. Sometimes using powerful lights at night to attract the squid to the surface. So here's an example. Off the coast of Argentina, there is a squid species that's heavily fished and it's fished sustainably and managed by the Argentian government within its exclusive economic zone. But at some point during their life history, that squid will cross the Exclusive Economic Zone, in the EEZ, into the High Seas. Once it crosses into the high Seas, Argentina doesn't have any authority over that management. And so the distance water fleet, often Chinese boats, so I've been reading up on, which has the largest distance water fleet, will line up along the border of that Exclusive Economic Zone.

3:40 And once those squid come across, they try and catch as many as possible. So by the time those squid species reached the restaurant menu, the original catch information may have been passed through several companies and several countries. Every step adds another opportunity for information to be lost. Squid highlights several challenges that may affect seafood products at the same time. First, fisheries management for squid is often weak. Unlike many fish stocks, squid populations are rarely managed with strict quotas or detailed stock assessments. Second, squid fisheries often operate across international waters where enforcement is more difficult. Hopefully, the High Seas will allow that better enforcement to happen. Third labeling rules allow seafood to be sold under broad market names such as squid, rather than listing the exact species or even calamari.

4:26 Believe it or not. So for consumers, that means the label provides very little information about what they're actually eating. And for scientists studying seafood supply chains, squid is one of the clearest examples of how global seafood trade can become opaque and difficult to track. Now tomorrow we're gonna be talking to Dr. Marine Cusa, who's a fisheries scientist, a Marine scientist from Oceana. She also is a Pew fellow and she studies fisheries supply chains. She studies aquaculture fish feed. She's been on the podcast before for talking about fish feed for aquaculture and sustainable and certified ones and how that's necessary. Tomorrow she's going to be featured on the podcast. She studies seafood traceability and squid fisheries.

5:06 She's done a lot of research on this. And her research shows how global squid supply chains work and how little information consumers often receive about the seafood they eat. So if you don't wanna miss that interview, hit that follow button right now so that you get tomorrow's interview. But also share this episode with someone that you think would need it. If you think they need to learn more about seafood traceability, or they want to know what the problems are out in the Ocean and they wanna help solve it, I'm here educating people. I'm here for you. This episode, this podcast is here for people who want to know about the Ocean so I wanna inform you as much as possible and make it entertaining as well, which I hope I do. But I want you to share this with somebody who you think will get value out of it and you think should know about it. But that's it for today's episode. I wanna thank you so much for joining me on today's episode of the How to Protect the Ocean Podcast.

5:50 If you want to give feedback, you can do so. Go to speak up for blue.com/feedback. I want to hear your comments, questions, concern, speak up for blue.com/feedback. Have a great day. I'll talk to you tomorrow and happy conservation.

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