Marine Monitor | Around the World

Biorock StructureDuring a recent trip to Gili Air (Lombok, Indonesia) I found a similar reef restoration project being carried out. I couldn’t resist finding out more about it and taking a peak at how it was going!

Manta Dive Gili Air planted their first Biorock® Reef in 2013 with the aim of protecting the area in front of the dive shop from swells, storms and the subsequent erosion. The existing reef has been badly damaged in the past but the coral rubble bed is perfect for a coral restoration project.

Biorock® is led by Professor Wolf Hilbertz and Dr Tom Goreau from the Global Coral Reef Alliance. It has been researched and developed over the past 30 years to create a method which can be uniquely applied to solving a wide variety of marine and coastal issues.

Collecting coral fragmentsBiorock® Reefs are steel structures with a low voltage electrical current passing through them. This patented method induces mineral accretion from the surrounding seawater, causing the formation of a hard limestone coating onto the surfaces. This limestone coating mimics the calcium carbonate bedrock that coral reefs form under the living coral, thus creating a perfect habitat for growing coral fragments.

Fixing coral fragmentsRecently Manta Dive have expanded their project with a further six structures planted in shallower water. Since the plantation of these Biorock® reefs they have noticed an increased level of protection from erosion and swells, as well as an increase in marine life.

It is wonderful to see projects like this being run around the world to help protect and improve our marine environment. Good job Manta Dive!

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