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HDR Student Inspires Young Scientists on Cocos (Keeling) Islands

Wednesday, 10 December 2025

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Higher Degree by Research (HDR) student Caitlyn O’Dea recently returned from an extraordinary field trip to the Cocos (Keeling) Islands, where her research brought together science and community.

As part of her PhD project exploring how biological and environmental pressures are shaping the traits and functions of seagrass in this remote island territory, Caitlyn partnered with Cocos Islands District High School to deliver a hands-on learning experience for local students. The activity aimed to connect young learners with the marine habitats that play a vital role in the islands’ ecology and economy.

A Hands-On Dive into Seagrass Science

During the excursion, 23 students from Years 2 - 8 joined Caitlyn on a local beach to collect seagrass fruits washed ashore. These fruits, which contain seeds crucial for seagrass regeneration, were then taken back to the classroom where students planted them in aquariums to grow their own seedlings.

The results were impressive: more than 40 fruits were collected, with some already releasing seeds. This simple yet powerful activity gave students a tangible connection to the seagrass meadows that support fisheries, protect coastlines, and store carbon, essential services for the health and resilience of the islands.

Linking Research and Community

Seagrass ecosystems in the Cocos (Keeling) Islands have faced significant declines in recent decades.Caitlyn’s research forms part of a collaboration between the Cocos community and scientists from James Cook University and Sea Country Solutions working together to protect and restore this important habitat.
A sense of stewardship among the next generation will be key to protecting seagrass meadows into the future.

“This was an meaningful opportunity to combine research with education,” Caitlyn said.
“Seeing the students’ excitement as they discovered seeds and started growing their own seedlings was a highlight of my trip.”

Why It Matters

Community engagement is a cornerstone of ECU’s research ethos, and Caitlyn’s initiative exemplifies how science can inspire and empower. By bridging academic research with local action, projects like this help build awareness and resilience in fragile ecosystems.

HDR Student Coccus Islands Research Project HDR Student Caitlyn O'Dea with students.

Stay tuned for more updates on Caitlyn’s research as she continues to uncover insights into the future of seagrass in one of Australia’s most unique marine environments.

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