Oktiyas Muzaky Luthfi, Muhammad Arif Asadi, Teguh Agustiadi and Agoes Soegianto
Abstract
About six sites have been surveyed in Lirang Island, Southwest Maluku (Moluccas), Indonesia that was a remote area. Belt transects 1x100 m was lied down on each site and then counted and recorded the condition of T. musica as health (H), broken colony less 50% (B1), broken colony more 50% of colony area (B2) and death (D). The life form of T. musica also divided into two categories: massive (OM) and thick encrusting(OTE). The monitoring was conducted throughout April 2016. The result showed the total about 379 colonies of T. musica was monitored which OM was dominated form (328 colonies) than OTE (51 colonies). And the total health (H) of T. musica was 87.33%, broken 1 (B1) was 2.63%, broken 2 (B2) was 6.33% and death (D)was 3.69%. In this monitoring, the etiology of disease in colony T. musica might not cause by micro bacteria,but more attention in other causalities, such as mechanical lesions or sedimentation.