Coral Nurseries & Artificial Reefs


Coral nurseries and artificial reefs are a form of active restoration aimed at increasing coral health, diversity, or abundance. Corals are colonial organisms which reproduce primarily asexually to grow larger or to repair damaged tissues. Thanks to this asexual reoroduction, we are able to grow new coral colonies from smaller or broken pieces of coral called fragments. Many large coral colonies can break naturally due to many different threats such as large storms and waves, boat anchors and collisions, fishing nets, or irresponsible diving and snorkeling practices. These broken corals, when rolling around the sand, have almost no chance of survival, and usually die. But, by securing these fragments in areas that provide the corals with proper growing conditions they can be rehabilitated, nursed back to a mature colony size, and then transplanted back out onto the reef or artificial reef structures.

It was Charles Darwin who first realized this about corals. He noticed that corals rolling around under his ship quickly turned white and died, but by securing the loose coral to a piece of bamboo pounded in the sand they would survive. For this he is credited with being the first coral restorationist. This is the basis of our coral nursery program initiated in 2007, with our first site placed in Ao Leuk Bay. Our materials and methods have changed considerably since the time of Charles Darwin, but the ultimate goal is the same - secure dying corals before its too late.

We have constructed many nurseries and explored a wide variety of techniques over the last decade, and have learned what works well for our area, and through which methods we can receive the maximum level of benefits with the lowest amount of material or labor costs. Then, in 2010, Thailand and the rest of the South China Sea experienced one of the worst coral bleaching events in the last decade. After this event, the Thai Government, along with local Universities met to discuss ways in which we could alleviate damages and protect our reefs in subsequent events.

Representatives from New Heaven RCP attended several conferences and meetings in Bangkok, and pushed forward a plan to make local stakeholders more responsible for taking a proactive approach to reducing threats to reef health. Coral nurseries were identified at that meeting as one of the most accessible and efficient means of increasing reef resilience and helping corals rebound from bleaching.

Next, we worked with the Save Koh Tao Group, the Thai Department of Marine and Coastal Resources, and the Prince of Songkla University to start and Adopt-A-Reef Program here on the island. Other than New Heaven, 5 dive schools signed up to the program, and we worked together to increase the size and scope of coral nurseries around the island. In fact, in 2010 the DMCR and PSU donated 48 coral nursery tables for our island dive schools to use and look after. Currently we look after the tables in Chalok Ban Kao and Ao Leuk, which is also where we have our own coral nurseries and growing artificial reef sites.

  • Phone
    +66 (0) 77 457 045
  • Email
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  • Address
    48 Moo 3 Chalok Baan Kao
    Koh Tao, Surat Thani
    84360, Thailand
Copyright 2016
New Heaven Reef Conservation Program