Reef restoration with customized coral spiders in Indonesia

Nusa Penida, Bali, Indonesia
Coral reefs are resilient ecosystems found throughout the oceans, from deep, cold waters to shallow, tropical waters. However, because of increased frequency of threats and disturbances, the reefs get damaged and often do not have enough time to naturally repair themselves. With this coral reef restoration project in collaboration with Project Laut, we are rebuilding damaged — and expanding healthy — coral reefs, so they can provide all the coral reef ecosystem benefits. In the restoration, we use the spider (or "reef star") technique, in whi...Read more
767
coral spiders installed

Location

Facts & figures

many
coral species
16
coral fragments per spider
0.35
square meters per spider
3D
monitoring
Turtles
for reef health
1 No poverty
2 Zero hunger
12 Responsible consumption and production
13 Climate action
14 Life below water
17 Partnerships for the goals

Specific sites

Elia's coral spider

During the summer of 2024, on August 10th specifically, a coral spider with sixteen coral fragments was installed in the name of Elia Group, in the context of coral reef restoration near Nusa Penida, Bali. A monitoring round was executed on October 31, 2024. When using the spider technique, individual metal structures are welded together by local ...Read more

Naiad Foundation's coral spiders

In April 2025, the first Naiad Foundation (before: Victrix Foundation) coral spiders were installed. When using the spider technique, individual metal structures are welded together by local villagers. Once the spider is created, a coat of cement paint is applied. This prevents the leaching of iron into the ecosystem and acts as an attractive base...Read more

Partners