Dr Brett Lewis, a marine scientist at Queensland University of Technology based in the CBD, is leading a collaborative project developing world-first eco-friendly technology to stabilise coral rubble and support reef recovery.
Background and Context
The Great Barrier Reef, one of the world’s most recognised natural wonders, faces significant threats from climate change, destructive fishing, cyclones, and rising ocean temperatures. These hazards leave behind coral rubble — loose skeletal fragments that prevent coral larvae from attaching and regenerating. Traditional restoration methods have often involved non-biodegradable materials that introduce long-term foreign structures into reef ecosystems.
Photo Credit: QUT
Dr Lewis, working out of QUT’s CBD campus, has focused on solutions that support natural coral recovery while minimising environmental harm.
Coral Restoration Innovation Led by Dr Lewis
Dr Lewis and his team have developed bio-mesh materials and plant-based adhesives designed to stabilise damaged reef areas. The bio-mesh uses biodegradable plant-based components rather than plastics, while the adhesives combine natural extracts and biocompatible polymers that safely break down over time. These materials aim to provide a stable base for coral regrowth without leaving harmful residues.
His work builds on collaborative research into coral biology and attachment, carried out with partners including the University of Technology Sydney and the Australian Institute of Marine Science. This research contributes to establishing biological baselines for coral out-planting practices and supports the wider goals of the Reef Restoration and Adaptation Program.
Testing and International Collaboration
The materials are being trialled in partnership with Mars Sustainable Solutions, used alongside steel MARRS Reef Stars to improve reef stability and promote marine life recovery. The Australian Institute of Marine Science is collaborating with QUT to help scale these innovations internationally. Pilot studies are planned at sites in Indonesia, Malaysia, and across the Great Barrier Reef.
Exploring Automation and Next Steps
Dr Lewis and his team are exploring automated deployment methods, including the potential use of autonomous underwater vehicles, to improve the efficiency of applying these materials on a larger scale.
The project continues to refine the bio-mesh and adhesive technologies as part of a broader collaborative effort aimed at minimising environmental impact and enhancing restoration outcomes. Further international pilot deployments are part of ongoing plans to support reef recovery globally.
Published 1-July-2025
