Authors : Rudhy Akhwady, Pandu Cahyo Tamtomo and Oktiyas Muzaky Luthfi
Abstract: Stone ash and clamshell are a material that comes from the nature and is very rarely used as a mixture of artificial reefs made from concrete. This study uses stone ash and clamshell because high silica content in stone ash can strengthen the artificial reef concrete while the use of clamshell is expected to reduce the abundant waste in coastal areas. In order to know the potential of both media types of artificial reefs stone ash and clamshell as a place to live or attached to marine biota needs to be evaluated, evaluation seen from result of biota number, type composition, density and rate of attachment of biota which has been obtained after 3 months of media placed in waters. The results of data processing and statistical analysis of Mann-Whitney U test performed showed significant value of 0.755 or p>0.05 which means no significant difference indicating that both types of artificial reef media using stone ash and clamshell have a role to resemble the characteristics of natural reef as a place to live, a place to eat, a shelter and a place to spawn for marine biota which then repair or replace the ecosystem that has been damaged.
Rudhy Akhwady, Pandu Cahyo Tamtomo and Oktiyas Muzaky Luthfi, 2020. Used Evaluation of Stone Ash and Clamshell as Concrete Material of Artificial Reef at Pasir Putih Beach, Situbondo Indonesia. Environmental Research Journal, 14: 1-8.