Responsible travel & conservation

Jemeluk Bay Coral Transplant: What Restoration Can Promise

Students planted coral in Jemeluk Bay, Amed, in October 2025. Is the reef saved? Not yet. It is a good start, and a start is all it is.

A yellowfin goatfish swimming over the reef
A yellowfin goatfish on the reef at Jemeluk Wall, Amed. Not the transplant site itself. Photo: Bernard Dupont on Wikimedia Commons, CC BY-SA 4.0

In October 2025, a Udayana University student team transplanted coral at its BASIC Jemeluk Bay site in Amed, on Bali’s east coast. They used the MARRS “spider-web” method.

The university described the work as a practical follow-up to a student expedition. That expedition looked at ecological and social questions around the bay.

That is good news for a reef. It is not proof that the reef has already recovered.

What did the team do?

BASIC Udayana reported that the transplant took place on October 25, 2025, at its Jemeluk Bay site.

The MARRS approach uses small steel “reef stars”, linked together like a web. They give coral fragments a stable frame to sit on while they grow. The project connects research, student learning and local marine-tourism questions.

How do we know whether restoration is working?

Udayana University has also described monthly monitoring at its coral-transplant site in Amed waters. The monitoring records growth and checks the condition of the transplanted corals.

A photo on planting day cannot answer the long-term question. Repeated measurements, month after month, can.

Restoration is not a substitute for protecting natural reefs from damage. It works best alongside local stewardship, good water quality and visitor behaviour that does not break or stress coral.

Why careful words matter

It is easy to hear “coral transplant” and picture a reef brought back to life. The reports we read are more modest. They say what was planted, when, and that the site is monitored.

Until measurements are shared, the honest answer to “is it working?” is “we are watching”. That is not a disappointment. It is how good reef science works, one careful check after another.

How to visit Jemeluk with care

If you snorkel or dive in Amed, keep your body and gear off the reef. Use a buoyancy aid if it helps you stay off the coral. Keep fins away from coral. Do not stand, sit or touch.

Follow local guide instructions. Avoid entering restoration areas unless the project explicitly allows it. Rules and access can change, so check locally before you go.

If you would like to snorkel, freedive or dive in Amed with a vetted local team, our Ocean Match referral can connect you, and you book the local team directly. Our Indonesia ocean guide gives the wider picture. A reef does not bounce back on our holiday schedule. The interesting part is watching, measuring and helping it keep growing.

Questions people ask

What happened in Jemeluk Bay in October 2025?

A Udayana University student team transplanted coral at its BASIC Jemeluk Bay site in Amed on October 25, 2025, using the MARRS “spider-web” method.

Does this mean the reef has recovered?

No. A transplant is a starting point. Corals need time to survive, grow and contribute to a functioning reef.

How is the transplant site checked?

Udayana University has described monthly monitoring at its coral-transplant site in Amed waters. It records growth and checks the condition of the corals.

Can visitors go into restoration areas?

Avoid entering restoration areas unless the project explicitly allows it. Follow your local guide and check local rules, which can change.

Wildlife encounters are unpredictable and never forced. Ocean Calling works only with vetted, ethical local operators, and every animal is free to approach, or not, entirely on its own terms.

Sources & further reading
  1. Udayana University, coral transplant at BASIC Jemeluk Bay (12 November 2025)
  2. Udayana University, monthly monitoring at Amed transplant site

Further reading on Ocean Calling: Indonesia in the Ocean Atlas · Do artificial reefs work? · How to snorkel without damaging coral · Coral reef resilience science

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