Corallivore became one of the biotic components that relate with coral coverage. The objective of this study was to determine the trophic structure of reef fishes, as well as the relationship between corallivores and hard corals in the northern part of Kepulauan Seribu. Reef fish species and benthic coverage were assessed using underwater visual census (UVCs) and Line Intercept Transect (LIT). The results showed that there were 120 reef fish species belonging to 7 trophic groups and 19 families. Pomacentridae and Labridae are the most abundant fish families. Based on reef fish components, Sepa Besar reef fish characteristics were dissimilar than the other sites. The highest coral cover was found in Pelangi Island, which related with the high abundance of corallivores. An abundance of corallivore groups showed a positive correlation (R2 = 0.7786) with hard coral cover. The abundance and diversity of reef fish were affected by the availability and variety of food. Our study shows that coral covers affect the abundance of corallivore fishes. Variability and existence of food for reef fishes are really important for resort priprietors to be aware of especially for those who manage diving and snorkeling activities.

Quality Assurance System of Higher Education requires educational institution to have a system which capable of assuring the quality of academic activities implementation. Information systems are used to manage information and data in the university environment and aim to improve the efficiency and effectiveness of university management in achieving its goals. There are 22 information systems in Syiah Kuala University, but it does not mean that it facilitates the quality assurance processes there. This because the system is not connected each other. This condition makes the distribution data is very difficult to be monitored and caused unsystematic audits activity. This study aims to design a Quality Assurance Information System that can be integrated with all the existing system in USK University. The method used in designing the prototyping system is the Prototype Model. Based on the results of interviews regarding to the Internal Quality Assurance System in USK University, the function of information system that is built must be able to meet the needs of several parties involved, not only to guarantee the overall quality required by the university, but also to the level of study programs that can provide benefits from the system built. The result of designing system that successfully created is the quality assurance system can be integrated to the existing system in USK University. System performance testing is carried out using the System Usability Scale and obtains the SUS value of 77 which mean that the quality assurance information system designed has a fairly good usability level. Keywords: Information System, Internal Quality Assurance System, Quality, Prototype, System Usability Scale.