Observation of the Third Year, the Use of Artificial Reefs Made from Bamboo, on the Malalayang Beach in Manado, North Sulawesi, Indonesia

Efforts of securing, maintaining, and preparing the sustainability of reef fish stock were conducted in the coastal waters of Malalayang Dua, Manado, North Sulawesi, using coral reef condition rehabilitation-based management concept of community?s fisheries zone, artificial reef made of bamboo or ?BambooReef?, as an innovative development of alternative artificial reef model. BambooReef can only stand in 2-3 years, and when the BambooReef modul is decomposed, the coral transplanted will fall to the sea bottom. The fish occupying the modul will have new habitat, increase fish biomass, and create fish stocking area for surrounding waters. BambooReef was placed around natural coral reefs at the depth of 5 - 7 M. Data collected covered occurrence and preference of reef fish (number of species and density). Results found 28 species consisting of mayor species group (18 species), 3 indicator species, and 7 target species, with 181 individuals and density of 11.3125 ind.sq.m-1 or 113, 125 ind.ha-1 after 3 years of placement. Twenty-eight genera of coral fishes found were not in the range of optimal size for fisheries. However, this study reflects that bambooreef placement has opened an opportunity for new habitat creation for several genera of reef fishes.