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Ocean science fact: Can turtles help us map the ocean?

Seagrass meadows cover just 0.2% of the ocean floor—but they punch far above their weight. These underwater plants support marine biodiversity, improve water quality, and store up to 10% of the ocean’s buried carbon each year. 

Yet, mapping seagrass habitats is a challenge. Satellite images can miss meadows hidden in deep or murky waters. That’s where green sea turtles (Chelonia mydas) come in. These natural grazers feed on seagrass—and now, scientists are tracking their movements to find meadows we’ve never seen before. 

The Pacific Community (SPC) continues to support innovative, science-based solutions for ocean health in the region. Through initiatives like the Pacific Community Centre for Ocean Science (PCCOS), we bring together data, research, and Pacific-led insights to protect marine ecosystems—including those that sea turtles call home.

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