Coral reef restoration


Bali is uniquely situated within ocean currents that promote thriving coral reefs. The island is home to over 2,200 species of coral reef fish and over 400 species of corals.

Until fairly recently, Bali was surrounded by rich coral reefs, particularly on the island’s North, East and Southern coasts. Unfortunately, the use of coral as a building material in the past, together with destructive fishing practices and environmental pollution, has seen entire reefs vanish from Bali’s coastline.

Since 2010, LINI has been helping communities and fishermen to restore reefs using artificial reef structures, particularly near-poor coastal villages that had become seriously damaged due to the destructive fishing methods used in the past.

The pilot project for coral restoration was implemented in Les village and Penuktukan village in Buleleng District, North Bali.

The focus of this project is to restore fish populations and enhance habitats so that these artificial reefs can provide alternative collection areas to reduce the fishing pressure on natural reefs.

The Bali coral restoration project involves a wide variety of groups, including fishers, coral farmers, marine ornamental exporters, tourism operators, who will all benefit from the presence of healthy reefs. It also provides alternative income sources for fishers, allowing them to make and deploy the artificial substrates, build coral tables and prepare coral plugs.


The ‘Fishdome

The ‘Fishdome’ is a dome-shaped artificial reef structure with space inside for fish to hide in. The dome provides a large surface area on which corals and other marine organisms can settle and grow. Domes quickly become refuges for large numbers of fish and have been designed to last for many years – long enough for the natural reefs to grow over them and recover significantly.

Natural Coral Recruitment on Fishdome

The ‘Roti Buaya

The ‘Roti Buaya’ (‘crocodile bread’) is so-called because it is long and looks like a special crocodile-shaped bread from Jakarta. The surface of this structure is very rough and has many holes and ridges on which new corals and other organisms can settle and grow.  

Coral fragments are placed in plugs that fit tightly into holes in the artificial coral structures. The transplanted corals act as triggers that encourage wild baby corals (planulae) to attach onto the surfaces of the artificial reef structures. Correct placement of an artificial coral structure can make it blend perfectly with the surrounding natural reef. Placement of the structure on a sandy surface allows the area to become a new habitat for fish and other kinds of marine life.