The health of coral reefs and underwater ecosystems in shallow waters: Study on Tidung Island

Cindewiyani, Herdis Herdiansyah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Coral health data is one of the primary inputs in determining the right strategy and management steps. This study aims to determine the health of corals through two indicators, namely percent of coral reef cover and abundance of reef fish. Data collection was carried out in 4 observation stations with Point Intercept Transect (PIT) and Underwater Visual Census (UVC) methods. The results of the study stated that the percentage of coral cover at four stations included in the category of poor, medium, or good, with a percentage of 10.3% (station 1), 26.5% (station 2), 28.9% (station 3), and 65.73% (station 4). The results of data analysis of reef fish communities have a Diversity Index in the medium category (1.0 <'≤3.0). The uniformity index value (E) obtained ranged from 0.8 to 0.9 shows that reef fish communities have low ecological pressure or have a stable community. Analysis of dominance index (C) in all stations ranged from 0.059-0.069 (<0.5), which showed a low dominance value. The live coral cover percentage tends to decrease to previous years by comparing the portion of seafloor covered by living coral that is 68.2% in the year 2007, to only 32.8% in 2018.

Original languageEnglish
Title of host publicationInternational Conference on Biology and Applied Science, ICOBAS 2019
Editors Romaidi, Didik Wahyudi, Retno Novvitasari Hery Daryono, Eriyanto Yusnawan, Akira Kikuchi
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735418608
DOIs
Publication statusPublished - 3 Jul 2019
EventInternational Conference on Biology and Applied Science 2019, ICOBAS 2019 - Malang, Indonesia
Duration: 13 Mar 201914 Mar 2019

Publication series

NameAIP Conference Proceedings
Volume2120
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Biology and Applied Science 2019, ICOBAS 2019
CountryIndonesia
CityMalang
Period13/03/1914/03/19

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    Cindewiyani, & Herdiansyah, H. (2019). The health of coral reefs and underwater ecosystems in shallow waters: Study on Tidung Island. In Romaidi, D. Wahyudi, R. N. H. Daryono, E. Yusnawan, & A. Kikuchi (Eds.), International Conference on Biology and Applied Science, ICOBAS 2019 [040017] (AIP Conference Proceedings; Vol. 2120). American Institute of Physics Inc.. https://doi.org/10.1063/1.5115655