Biodiversity of Coral Reefs and Reef Fishes in Pasir Putih Situbondo

Postgraduate students, Biology Department, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia email : indriyanticahyani098@gmail.com

Corresponding author: indriyanticahyani098@gmail.com

Abstract

Biodiversity index assessment is an analytical method to determine the stability of an ecosystem. Coral reefs are the primary productivity for fish resources and other supporting organisms. Along with the increasing threats and needs for utilization, it has resulted in a decrease in cover followed by a decrease in reef fish biota. Therefore, it is necessary to identify and monitor the condition of coral reef biodiversity and reef fish. The purpose of this study was to analyze the condition of coral reef biodiversity and reef fish in Pasir Putih Situbondo. The results showed poor (22.06%) to good (59.16%) status coral cover conditions, the main constituents of 3 families namely Poritidae, Acroporidae and Fungiidae. Poritidae family dominated by Porites rus (CS), Acroporidae dominated by Acropora muricata (ACB) and Fungiidae dominated by Fungia (CMR). The average value of H' was 2.39; E was 0.80 and D was 0.15. The main fish category is dominated by the family Pomacentridae species Pomacentrus brachialis at 539 ind/m2, family Caesionidae species Pterocaesio tessellata at 1,179 ind/m2 and family Chaetodontidae species Chaetodon octofasciatus at 45 ind/m2. The average value of H' index was 2.74; E was 0.69 and D was 0.13.