_____________________________________________________________________________________________________ *Corresponding author: Email: antox.mendoza@gmail.com; Asian Journal of Fisheries and Aquatic Research 16(6): 10-21, 2022; Article no.AJFAR.84601 ISSN: 2582-3760 Potentials of Establishing Sentinel Integrated Reef Ecosystem in Eastern Coast of Bicol Region, Philippines Antonino B. Mendoza, Jr a* and Joshua Karl Bista a a BU Tabaco Campus, Tabaco City, Philippines. Authors’ contributions This work was carried out in collaboration between both authors. Both authors read and approved the final manuscript. Article Information DOI: 10.9734/AJFAR/2022/v16i630388 Open Peer Review History: This journal follows the Advanced Open Peer Review policy. Identity of the Reviewers, Editor(s) and additional Reviewers, peer review comments, different versions of the manuscript, comments of the editors, etc are available here: https://www.sdiarticle5.com/review-history/84601 Received 17 January 2022 Accepted 21 March 2022 Published 25 March 2022 ABSTRACT Sentinel species is an important input in understanding environmental health conditions that can provide integrated and relevant information on the possible degree of impact of anthropogenic and natural causes providing information about ecological processes. Identifying “proper set” of ecosystem sentinels will enhance the capacity to monitor and predict environmental change to help guide ecosystem science and conservation efforts. In the Eastern Bicol Region, we surveyed selected areas to identify the healthy coral reefs to develop a “sentinel integrated system” that will allow regular monitoring of the best reefs and as a showcase for proper coral reef ecosystem management. Please describe the methods briefly. Results showed that there are healthy reefs and indicator organisms were found that are good candidate for a sentinel integrated system that can serve as potential markers of environmental or biological changes. Most healthy reefs are found in Eastern Al (Albay and Lagonoy Gulfs) while those in Asid Gulf and Western Albay have low reef quality. This also corresponds to deep and shallow reef areas respectively. Keywords: Reef management; sentinel ecosystem; indicator species; aquasis. 1. INTRODUCTION Sentinel species are organisms that are used to detect risks to humans by providing advance early warning systems of natural or human caused environmental change. They are primarily applied in the context of environmental hazards [1]. In this framework, the sentinel Original Research Article