Condition of Coral Reefs and Reef Fishes in Dofa Village, Sula Islands Regency
Abstract
Coral reefs are unique among ocean associations or communities that are entirely formed by biological activity. This study aims to determine the condition of coral reefs and reef fishes in Dofa Village, West Mangoli District, Sula Islands, 2018. Collecting coral data used the Line Intercept Transect (LIT) method, while coral fish data collection used the visual census method. Water parameters measured are temperature, salinity, degree of acidity (pH), brightness and current velocity. Based on observations, the water temperature ranges from 29.33° C - 29.9° C. The salinity of the waters ranges from 29.67 ‰ - 34 ‰. The degree of acidity is 7.5 which supports the life of coral reef. The water brightness level is 65% - 100%. The current velocity ranges from 0.02 m / s to 0.05 m / s. The condition of the coral reef ecosystem based on the percentage of hard coral cover ranged from 21.02% - 33.7% with low to medium category. The coral mortality index at the study location was small where at station 1 it was 0.487, station 2 was 0.335 and station 3 was 0.205, meaning that there was no significant change for live coral reefs. The abundance of reef fishes ranged from 0.52 ind/m2 - 1.22 ind/m2 which was dominated by the Pomacentridae and Labridae families where the two families were groups of fish that used coral reefs as habitat for feeding ground. The index value of coral fish diversity in the coral reef ecosystem at all stations ranged from 0.58 to 3.60 where the diversity index value was in the low to medium category. The uniformity index is included in the medium category with values ranging from 0.58 to 0.63 which illustrates that the difference in the number of individuals for each species is not too significant. The dominance index of reef fishes at the observation station is very small, ranging from 0.03 - 0.07 which indicates that the dominance of the species is very low, so that the condition of the reef fish community is relatively stable.
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References
Alimuddin, 2008. Kondisi Substrat Dasar dan Ikan Karang di Daerah Perlindungan Laut Pulau Sebesi, Lampung. Skripsi Fakultas Perikanan dan Ilmu Kelauatan. Institut Pertanian Bogor. Bogor. (Tidak dipublikasikan).
Aziz, A. M. 2002. Tingkat kelangsungan Hidup, Laju Pertumbuhan dan Rasio Pertumbuhan Beberapa Jenis Karang Batu dan Karang Api yang Di Transplantasikan Di Perairan Pulau Pari, Kepulauan Seribu. Skripsi Fakultas Perikanan dan Ilmu Kelauatan. Institut Pertanian Bogor. Bogor. (Tidak dipublikasikan).
Badrudin, S. R. Suharti, Yahmantoro dan I. Suprihanto. 2003. Indeks Keanekaragaman Hayati Ikan Kepe-Kepe (Chaetodontidae) di Perairan Wakatobi, Sulawesi Tenggara. Jurnal Pendidikan Perikanan Indonesia. Edisi Sumberdaya dan Penangkapan. 9 (7) : 67 – 73.
Baum G, Januar HI, Ferse SC, Kunzmann A. 2015. Local and regional impacts of pollution on coral reefs along the Seribu Islands north of the megacity Jakarta, Indonesia. PLoS One 10: e0138271. DOI: 10.1371/journal.pone.0138271.
Burke et al. 2011. Menengok Kembali Terumbu Karang yang Terancam di Segitiga Terumbu Karang (Diterjemahkan dari Reefs at Risk Revisited in the Coral Triangle oleh yayasan TERANGI). Washington, D.C: World Resources Institute (WRI)
Djamali, A dan H. Mubarak. 1998. Sumberdaya Ikan Konsumsi Perairan Karang, pp. 195-200. Potensi dan Penyebaran Sumberdaya Ikan Laut di Perairan Indonesia, Komisi Nasional Pengkajian Stok Sumberdaya Ikan Laut, LIPI, Jakarta.
English, S., C. Wilkinson dan V. Baker. 1994. Survey Manual for Tropical Marine Recourses. Australian Institut of Marine Science. Townsville. 34-80 p.
Hutomo, M. 1986. Coral Reef Fish Community, pp: 54-72. Training Course in Coral Reef Research Method and Management (2), SEAMEO-BIOTROP, Bogor.
Kausarian H, Sumantyo JT, Kuze H, Karya D, Wiyono S. 2016. The origin and distribution of silica mineral on the recent surface sediment area, northern coastline of Rupat Island, Indonesia. ARPN J Eng Appl Sci 12: 980-989.
Keputusan Menteri Lingkungan Hidup No. 4 Tahun 2001 Tentang Kriteria Baku Kerusakan Terumbu Karang.
LUBIS, M. Z., Pujiyati, S. R. I., PAMUNGKAS, D. S., TAUHID, M., ANUROGO, W., & KAUSARIAN, H. (2018). Coral reefs recruitment in stone substrate on Gosong Pramuka, Seribu Islands, Indonesia. Biodiversitas Journal of Biological Diversity, 19(4), 1451-1458.
Lubis MZ, Anurogo W, Hanafi A, Kausarian H, Taki HM, Antoni S. 2018. Distribution of benthic habitat using Landsat-7 Imagery in shallow waters of Sekupang, Batam Island, Indonesia. Biodiversitas 19: 1117-1122.
Lubis MZ, Taki HM, Anurogo W, Pamungkas DS, Wicaksono P, Aprilliyanti T. 2017. Mapping the distribution of potential land drought in Batam Island using the integration of remote sensing and Geographic Information Systems (GIS). IOP Conference Series: Earth and Environmental Science. DOI: 10.1088/1755-1315/98/1/012012.
Madduppa, et al. 2013. Dynamics of Fish Diversity Across an Environmental Gradient in the Seribu Islands Reefs Off Jakarta. Jurnal Biodiversitas. Vol 14, No. 1. P 17-24.
Mahmudi, M. 2003. Studi Kondisi Ekosistem Terumbu Karang serta Strategi Pengelolaannya (Studi Kasus di Teluk Semut Sendang Biru Malang). Pengantar Falsafah Sains Program Pascasarjana. Institut Pertanian Bogor. Bogor
Moosa, M. K. dan Suharsono. 1997. Rehabilitasi dan Pengelolaan Lestari. H. 189 – 200. dalam D. Soedharma, S. Soemodiharjo, K. Romimohtarto, O. S. R. Ongkosongo, dan Suhardjono (ed.), Prosiding Seminar Nasional Pengelolaan Terumbu Karang, 10 – 12 Oktober 1995. Panitia Program MAB Indonesia, Lembaga Ilmu Pengetahuan Indonesia. Jakarta. Indonesia.
Nybakken, J. W. 1992. Biologi Laut: Suatu Pendekatan Ekologis. Diterjemahkan oleh H. M. Eidman, Koesobiono, D. G. Bengen, M. Hutomo, S. Sukardjo. PT Gramedia. Jakarta. xv + 459 h.
Odum, E. P. 1993. Dasar-dasar Ekologi. Edisi ketiga. Terjemahan dari Fundamental of Ecology. Alih Bahasa oleh T. Samingan. Gajah Mada University Press. Yogyakarta. 174-200 p
Rizal, Samsul. 2016. Tingkat Tutupan Ekosistem Terumbu Karang Di Perairan Pulau Terkulai. Skripsi Fakultas Ilmu Kelautan dan Perikanan. Universitas Maritim Raja Ali Haji. Tanjung Pinang (Tidak dipublikasikan).
Sale, P. F. 1991. The Ecology of Fishes on Coral Reef. Academic Press. San Diego
Suharsono. 1996. Jenis-Jenis Karang yang Umum Dijumpai di Perairan Indonesia. P3O-LIPI. Jakarta. 116 h.
Supriharyono. 2007. Konservasi Ekosistem Sumber Daya Hayati di Wilayah Pesisir dan Laut Tropis. Yogyakarta: Pustaka Pelajar.
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