Coral diversity on artificial reef from coconut shells in northern Bali, Indonesia

Eghbert Elvan Ampou (Institute for Marine Research and Observation, Ministry of Marine Affairs and Fisheries. Jl. Baru Perancak, Jembrana 82251, Bali, Indonesia)
Gede Iwan Setiabudi (Aquaculture Study Program, Faculty of Math and Science, Ganesha Education University)
Nuryani Widagti (Institute for Marine Research and Observation, Ministry of Marine Affairs and Fisheries. Jl. Baru Perancak, Jembrana 82251, Bali, Indonesia)
I Nyoman Dodik Prasetia (Program of Aquaculture, Faculty of Mathematics and Natural Sciences, Universitas Pendidikan Ganesha. Jl. Udayana No. 11, Singaraja, Buleleng 81116, Bali, Indonesia)

Biodiversitas Journal of Biological Diversity
Vol. 21 No. 9 (2020)

Artificial reef from natural product bioreeftek is very easy to apply and can be found in many tropical coastal areas namely coconut shells with natural coral recruitment. The purpose of this study was to calculate the percentages of coral cover, ratio and clustering. At the two research sites in North Bali, Pemuteran - Napoleon reef, depth 5-6m-reef slope found 13 species of live coral from 9 bioreeftek: Porites sp 32%, Pocillopora damicornis 13%, Seriatopora sp 10%, Acropora palifera, Acropora sp, Goniastrea sp, Favia sp, Pachyseris sp = 6%; Montipora sp - Echinopora sp - Favites sp - Fungia fungites and Leptoseris sp = 3%. At the Lovina - Adirama Temple, depth of 6m-reef flat was found in 14 species from 14 bioreeftek: Acropora palifera 24%, Pocillopora damicornis 21%, Porites sp 7%, Montipora sp 4% - Acropora sp - Pavona sp = 3%, Platygyra sp 2%, Acropora humilis - Millepora = 1%. Cluster Analysis showed all corals on two sites are correlated in percent cover, characteristics, influences and occurrences. Artificial reefs with natural materials such as coconut shells are necessary developed in addressing the degradation of coral reef ecosystem. The added value of bioreeftek is insertion/inserted method of coral.