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‘Glass’ creatures — prized at high-end restaurants — seized in trafficking bust

The European eel is considered a delicacy in many parts of the world and is sold at high-end restaurants, experts said.
The European eel is considered a delicacy in many parts of the world and is sold at high-end restaurants, experts said. Unsplash

Authorities from 21 countries including the United States, in partnership with Europol, have seized nearly 50,000 pounds of glass eels as part of a major blow to a massive wildlife trafficking network, officials said in a Sept. 25 news release.

Just under 50,000 pounds of glass eels were seized in Operation LAKE, the agency said.
Just under 50,000 pounds of glass eels were seized in Operation LAKE, the agency said. Europol

It’s the name given to the juveniles of the species Anguilla anguilla, also known as the European eel — a species that is born and dies in the Sargasso Sea and about which little else is known.

As one of the most trafficked animals in the world, it is a species on the brink of extinction. The European eel has seen a 90% to 95% decline in its population since the 1980s, according to a 2024 briefing from the European parliament.

Glass eels are juveniles of the critically endangered European eel.
Glass eels are juveniles of the critically endangered European eel. Getty Images/iStockphoto

If you’re wondering why people would have a seemingly insatiable desire for juvenile eels, you wouldn’t be alone in that either.

European eels are a delicacy in many places around the world, but no one knows how to breed them, according to experts at the Yale School for the Environment.

For those driving the demand, the next best course of action is to have smugglers transport young eels to illegal fish farms throughout Asia “where they are raised to maturity and sold to high-end restaurants,” experts said.

Inconsistent legislation around eel imports and exports has contributed to the problem, researcher Mònica Pons-Hernández told Mongabay.

European eel populations have declined by up to 95% since the 1980s, European officials said.
European eel populations have declined by up to 95% since the 1980s, European officials said. Getty Images/iStockphoto

“The trafficking of glass eels remains one of the most substantial and lucrative illegal trades of protected species across the globe, with illegal profits estimated to be up to EUR 3 billion in peak years,” Europol said in a 2025 organized crime threat assessment.

The latest phase of Europol’s Operation LAKE — the primary force tackling glass eel trafficking — also led to 16,131 inspections of facilities across Europe and 26 arrests between October and June, according to the release.

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This story was originally published September 25, 2025 at 6:15 PM with the headline "‘Glass’ creatures — prized at high-end restaurants — seized in trafficking bust."

Lauren Liebhaber
mcclatchy-newsroom
Lauren Liebhaber covers international science news with a focus on taxonomy and archaeology at McClatchy. She holds a bachelor’s degree from St. Lawrence University and a master’s degree from the Newhouse School at Syracuse University. Previously, she worked as a data journalist at Stacker.
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