From Bleached to Beautiful: Coral Restoration Thrives in Mauritius

Coral reefs surrounding Mauritius, vital for the island's protection and economy, have suffered significant decline, losing approximately half their cover since the 1970s due to bleaching events and an oil spill. This degradation has left once vibrant ecosystems appearing faded and white.

In response, a government-led project, supported by international grants and organizations, launched a large-scale restoration initiative. The project focuses on both sexual reproduction, involving coral spawning, and asexual reproduction, primarily through fragmentation. This dual approach aims to create diverse and resilient coral populations.

Restoration centers have successfully cultivated coral nurseries, growing fragments for eight months to a year. Over 100,000 coral fragments have since been transplanted into areas like Blue Bay Marine Park, actively rebuilding the degraded reef structure and capacity.

Scientists are employing innovative methods, such as using coral fragments found on abandoned fishing gear. These fragments, known as "corals of opportunity," are attached to frames and nurtured in nurseries before being planted onto the seabed. This method contributes to accelerating reef recovery.

The restoration efforts, which aim to cover three hectares, are nearing their December deadline with over 50% achieved. An extension is sought to complete the goal, with ongoing coral growth in nurseries ensuring swift future replanting. This work is crucial for preserving Mauritius' identity and marine biodiversity.