Scientists Tag First Nesting Leatherback Turtle in Ecuador

Scientists Tag First Nesting Leatherback Turtle in Ecuador

By
Casey Lee

Publish Date:May 26, 2026

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📰 The quick summary: Scientists in Ecuador tagged the first nesting leatherback sea turtle in the country, naming her Lucero, to track her migration and feeding patterns and better protect one of the world’s most critically endangered marine populations.
📈 One key stat: The Eastern Pacific leatherback sea turtle subpopulation has declined by roughly 98% over the last several decades, leaving fewer than 1,000 individuals remaining.
💬 One key quote: “They can eat their weight in jellyfish every single day, and jellyfish consume juvenile fish and fish larvae. So when you have a healthy leatherback population, [it] supports healthy fish stocks and fishing communities in turn,” said Callie Veelenturf, marine conservation biologist and founder of the Leatherback Project.

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1️⃣ The big picture: Leatherback sea turtles are among the most endangered marine animals in the world, with the Eastern Pacific subpopulation having declined by about 98% over recent decades, leaving fewer than 1,000 individuals. These turtles nest along a coastal stretch running from Mexico to Ecuador, and Ecuador marks the southern limit of their nesting range. For the first time, scientists have tagged a nesting leatherback on Ecuadorian shores, a turtle they named Lucero, meaning “morning star” in Spanish. A team from the Ecuador-based Fundacion Reina Laud and the US-based Leatherback Project spent multiple nights on a remote beach before successfully attaching a satellite tag to her shell. Since then, Lucero has migrated south to coastal Peru, giving researchers their first real-time look at the movements of a nesting leatherback from this critical location.

2️⃣ Why is this good news: Tagging Lucero opens a window into the migration and foraging behavior of one of the rarest marine turtle populations on Earth, giving scientists data they have never had before from this part of the species’ range. Researchers can use this tracking information to advise local fishing communities on which areas to avoid, directly reducing the bycatch that poses one of the greatest threats to leatherback survival. Leatherbacks also play a vital ecological role by consuming enormous amounts of jellyfish each day, which in turn supports healthier fish populations and the fishing communities that depend on them. Each new data point from Lucero’s tag helps build a stronger scientific case for targeted conservation policies that can protect both the turtles and the livelihoods of people who share the ocean with them.

3️⃣ What’s next: Lucero’s satellite tag is expected to remain active for one to two years, during which researchers hope to map her full migration route and key foraging grounds. That data will feed directly into conservation policy recommendations for the critically endangered Eastern Pacific subpopulation. Scientists also aim to use the findings to work more closely with local fishing communities to reduce deadly bycatch encounters.

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Read the full story here: Mongabay – Tracking Lucero: Scientists follow a rare Eastern Pacific leatherback sea turtle

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