Blue Corner Marine Conservation

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Site monitoring shows increasing hard coral coverage

Since the start of the coral restoration project in Nusa Penida, the Blue Corner team has been conducting monitoring of the Restoration site. Monitoring methods involved Reef Check surveys which count fish and invertebrates present as well as percentage cover of various reef substrate - including rubble and hard coral. To measure substrate coverage divers conducted several replicate transects at each site with a point-intercept method. These surveys were done every few months - and continue to take place as part of our on-going monitoring of the project.

Over a two year period we focused on transplanting hard coral out onto an area of degraded reef. At the beginning of the project the site was predominantly dead rubble (95% coverage) with only a low coverage of hard coral (2%). However with the help of many volunteers over many restoration dives, the amount of hard coral cover began to increase with each survey until the latest survey in Dec 2020 showed 35% coverage of hard coral at the site. During the same time the amount of rubble began decreasing as stabilization methods have trapped moving rubble allowing soft corals, sponges and other living substrates to begin to colonize upon the rubble.