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Coral restoration efforts lead to rapid reef recovery comparable to healthy ecosystems
Reef Stars are installed in degraded areas to stabilise loose rubble and kickstart rapid coral growth.
Coral restoration efforts lead to rapid reef recovery comparable to healthy ecosystems
by Sophie Jenkins
Exeter UK (SPX) Mar 11, 2024

Innovative coral transplantation techniques have demonstrated remarkable success in reviving degraded reefs, according to the latest findings from the Mars Coral Reef Restoration Programme. Researchers reveal that these restored reefs match the growth rate of their healthy counterparts within just four years, offering hope for ecosystems devastated by human activities and environmental stressors.

Conducted in Indonesia, a region historically affected by destructive practices such as blast fishing, the study highlights a pivotal turn in reef recovery efforts. The research, a collaboration between the University of Exeter, the Research Center for Oceanography at the National Research and Innovation Agency (BRIN) in Indonesia, Mars Sustainable Solutions, and Lancaster University, utilized "Reef Stars" to facilitate coral regeneration. These sand-coated steel frames served as foundations for coral fragment transplantation, spearheading the recovery process.

Dr. Ines Lange of the University of Exeter, the study's lead author, emphasized the rapidity of the reefs' recovery, underscoring the potential of active management in enhancing reef resilience against threats like climate change. The study not only focused on the physical growth of the reefs but also assessed their return to ecological functionality, crucial for marine biodiversity and coastal protection.

Monitoring techniques developed by the Exeter team allowed for the measurement of reef carbonate budgets, indicating the net growth or erosion of the reef structure over time. This measure serves as a critical indicator of the reef's health and its capacity for adaptation to environmental changes. Remarkably, within four years post-restoration, the restored reefs demonstrated equivalent carbonate production rates and coral biodiversity to naturally healthy reefs, showcasing their ability to support marine life and safeguard coastal regions.

However, the research also noted differences in the community composition of the restored reefs, which predominantly feature branching corals. This variance could impact the habitat's provision for larger marine species and its resilience to climate-induced stressors, such as coral bleaching.

Dr. Tim Lamont of Lancaster University, one of the study's co-authors, expressed optimism about the findings, highlighting the potential for coral restoration to rejuvenate severely damaged reefs under stable climate conditions. The study's success is also a testament to the fruitful international collaboration between scientists and local Indonesian researchers and students, contributing to both scientific advancement and local capacity building.

Dr. Lange's reflections on the collaborative effort further illuminate the project's educational and environmental significance, emphasizing the mutual learning experience and the promising future of coral restoration as a vital tool for marine conservation.

Research Report:Coral restoration can drive rapid reef carbonate budget recovery

Related Links
Mars Coral Reef Restoration Programme
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