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ILMU KELAUTAN: Indonesian Journal of Marine Sciences

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Published by Universitas Diponegoro

ISSN : 08537291 EISSN : 24067598 DOI : -

Core Subject : Science,

Earth & Planetary Sciences

ILMU KELAUTAN: Indonesian Journal of Marine Sciences (IJMS) is dedicated to published highest quality of research papers and review on all aspects of marine biology, marine conservation, marine culture, marine geology and oceanography.

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Bakteri Coliform di Perairan Teluk Doreri, Manokwari Aspek Pencemaran Laut dan Identikasi Species Tresia Tururaja; Rina Mogea
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 15, No 1 (2010): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Penelitian ini bertujuan menganalisa kualitas perairan Teluk Doreri berdasarkan kandungan bakteri pencemar golongan enterobakteriaceae dan menganalisa faktor lingkungan abiotik yang mempengaruhinya. Pengambilan contoh air dilakukan di perairan Teluk Doreri (pantai Pasir Putih, muara Sungai Sanggeng, Sungai Wosi, dan Sungai Andai). Penghitungan jumlah total E.coli dan coliform menggunakan metode Most Probable Number (MPN) sedangkan uji biokimia bakteri menggunakan media emba agar. Jenis bakteri yang ditemukan pada seluruh lokasi penelitian yaitu Escherichia coli, E. freundii, dan E. aerogenes. Berdasarkan jumlah total E. coli (460-2400 MPN/100 ml) dan coliform (2400 MPN/100 ml) menunjukkan bahwa perairan Teluk Doreri telah tercemar oleh fecal coli. Kata kunci : bakteri pencemar, Teluk Doreri, Escherichia coli, E. freundii, E. aerogenes The present study aims to analized the quality of water in Doreri Bay during by indentifying contaminat bacteria group enterobakteriaceae and several affecting environmental factors. Water samples were taken from several sites (i.e. Pasir Putih water, mouth of Sanggeng River, mouth of Wosi River and mouth of Andai River). Total number count of E. Coli and coliform by using Most Probable Number (MPN) method. Biochemical test for bacteria was conducted by using emba agar media. The results of the study showed that bacteria, Escherichia coli, E. freundii, and E. aerogenes were found in all samples from all sites. Based on total number of E.coli was 460-2400 MPN/100 ml and coliform was 2400 MPN/100 ml, in which these suggested that the Doreri Bay has been polluted. Key words : contaminant bacteria, Doreri Bay, Escherichia coli, E. freundii, E. aerogenes

Spatial Distribution, Behaviour, and Biological Aspect of Albacore (Thunnus alalunga) Caught in Eastern Indian Ocean Fathur Rochman; Irwan Jatmiko; Bram Setyadji
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 22, No 3 (2017): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

This study highlighted the occurrence of the Indonesian tuna longline fishery targeting albacore (Thunnus alalunga) caught in the Eastern Indian ocean. The data used in this study based on the Research Institute for Tuna Fisheries (RITF) observer program in Benoa. This paper presents the current information on biological aspect (size distribution and length-weight relationship) and fish behavior (swimming layer and feeding periodicity) of albacore. Total albacore samples of 3,152 were taken from scientific observer data from 2010-2013. The study area of albacore was between 0-33°S and 75-131°E. Albacore length distributed from 70-196 cmFL (median=93 cmFL, mode=100 cmFL, mean=92.12 cmFL) and dominated at size of 95 cmFL. The highest percentage length of albacore was >90 cm (L50) occured in the area between (30-35°S and 80-95°E) and (10-15°S and 120-125°E). The length weight relationship was determined to be W=0.0045 FL1.8211 (W in kg, FL in cm). The expected season to catch the ALB was from April to July with the peak season in June and July. The swimming layer of albacore based on minilogger data were distributed from at 118 to 341 m depth and mostly catch at depth of 156 m with temperature degree 18°C. The feeding periodicity of albacore’s are start from 7:45am to 17:59 pm, mostly active at 10 am to 11 am. The majority of ALB caught by Indonesian longliner was mature condition and negative allometric growth. The ALB peak season was in June-July and the best time to catch was 10 am to 11 am at depth of 156 m. Keywords : albacore, feeding periodicity, swimming layer, CPUE

Phytomedicinal Investigation from Six Mangrove Tree Species, North Sumatra, Indonesia (Investigasi Fitomedisinal Enam Spesies Mangrove, Sumatera Utara, Indonesia) Mohammad Basyuni; Lollie A.P. Putri; Hirosuke Oku
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 18, No 3 (2013): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Manmgrove adalah tanaman yang toleran terhadap garam dan dikenal kaya sebagai sumber metabolit sekunder dengan potensi bahan obat alami seperti triterpenoida, alkaloida dan fitosterol. Zat kimia ini merupakan senyawa aktif untuk pengembangan agen bioaktif baru. Investigasi fitomedicin terhadap daun dan akar dari enam spesies mangrove di Sumatera Utara, Indonesia, yaitu Acanthus ilicifolius, Bruguiera parviflora, Ceriops tagal, Rhizophora apiculata, Sonneratia caseolaris dan Xylocarpus granatum dianalisis untuk karakterisasi profil kimianya. Identifikasi struktur fitokimia diverifikasi dengan perbandingan waktu retensi pada kolom GC dengan standar otentik dan interpretasi spektrum GC-MS. Skrining fitokimia menghasilkan pentasiklik triterpenoida dari golongan lupane, oleanane, ursane, kolesterol, fitol, squalene dan fitosterol. Triterpenoida dan fitosterol merupakan proporsi terbesar dari senyawa yang diisolasi. Komponen triterpenoida dan fitosterol masing-masing terdiri 7 dan 4 senyawa. Komponen utama dari triterpenoida adalah lupeol, a-amyrin, b-amyrin dan taraxerol. Fitosterol utama terdiri dari b-sitosterol, campesterol dan stigmasterol. Data ini dapat berkontribusi sebagai sumber bahan baku untuk pengembangan konstituen fitomedicin dan agrokimia dari tanaman mangrove Kata kunci: bioaktif, b-sitosterol, lupeol, mangrove, fitokimia, fitomedicin, fitosterol, triterpenoid Abstract Mangroves are salt tolerant plant and rich sources of secondary metabolites with potential medicinal value such as triterpenoids, alkaloids and phytosterols. These chemicals are promising active compounds for the development of novel bioactive agents. Phytomedicinal investigation of the fresh leaves and roots from six mangrove species, namely Acanthus ilicifolius, Bruguiera parviflora, Ceriops tagal, Rhizophora apiculata, Sonneratia caseolaris and Xylocarpus granatum from North Sumatra, Indonesia were analyzed to characterize their chemical profile. Identifications of the phytochemical structures were verified by comparison of their retention time on the GC column with those of authentic standards and on the interpretation of GC-MS spectra. Phytochemical screening yielded pentacyclic triterpenoids of lupane, oleanane and ursane group, cholesterol, phytol, squalene and phytosterols. Triterpenoids and phytosterols comprised the major proportion of compounds isolated. The triterpenoids and phytosterols consisted of 7 and 4 compounds, respectively. The major components of triterpenoids were lupeol, a-amyrin, b-amyrin and taraxerol. The main phytosterols consist of b-sitosterol, campesterol and stigmasterol. These data are likely to contributing a raw material source for development of phytomedicinal and agrochemical constituents from mangroves. Keywords : bioactive compound, b-sitosterol, lupeol, mangrove, phytochemical, phytomedicinal, phytosterol, triterpenoid

Dampak Pemaparan Logam Berat Kadmium pada Salinitas yang Berbeda terhadap Mortalitas dan Kerusakan Jaringan Insang Juvenile Udang Vaname (Litopeneus vannamei) Ervia Yudiati; Sri Sedjati; Ipanna Enggar; Irpan Hasibuan
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 14, No 4 (2009): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Uji toksisitas akut dilakukan pada juvenil udang vaname Litopenaeus vannamei dengan pemaparan jangka pendek (96 jam) berbagai konsentrasi logam kadmium. Uji statis digunakan sebagai teknik uji toksisitas. Tujuan dari studi ini adalah untuk menganalisis mortalitas dan kerusakan jaringan insang udang vaname yang didedah logam kadmium pada salinitas yang berbeda. Hasil peneltian menunjukkan toleransi udang vanamae terhadap logam kadmium menurun sejalan dengan penurunan tingkat salinitas. Tingkat toleransi yang rendah dan kerusakan jaringan terberat terjadi pada udang yang didedah pada salinitas 10 ppt (LC50 - 96 jam : 1,66 ppt Cd) diikuti berturut-turut salinitas 20 ppt (LC50 - 96 jam : 2,54 ppt Cd), 30 ppt (LC50 - 96 jam : 4,41 ppt Cd) dan 40 ppt (LC50 - 96 jam : 5,16 ppt Cd). Kata kunci : Kadmium, Mortalitas, Insang, Litopenaeus vannamei, salinitas Acute toxicity test was conducted on Litopenaeus vannamei on short term exposure (96 hours) to various concentration of cadmium at different salinity. A static test was applied as an acute toxicity test technique. The objective of this study was to assesst the mortality rate and the damage of gill tissue of L. vannamei exposed to cadmium at different salinity. Tolerance to these metal was decreased progressively according to the salinity level. The less tolerant salinity and the heaviest damage gill tissue was found at lowest salinity/10 ppt (96 h LC50 : 1.66 ppt Cd) and followed by 20 ppt (96 h LC50 : 2.54 ppt), 30ppt (96 h LC50 : 4.41 ppt), and 40 ppt (96 h LC50 : 5.16 ppt), respectively. Key words : Cadmium, Mortality, Gill, Litopenaeus vannamei, salinity.

Characteristics of Sediments Deposition in Karimata Strait Muhammad Trial Fiar Erawan; Tri Prartono; Ali Arman
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 23, No 2 (2018): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Karimata strait connects South China Sea and Indonesia territorial seas where the strait current pattern is affected by west and east monsoon. This condition influences particles depositing sedimentation process in the strait. Lack information about sediment depositing rate at the straits dozens years ago makes this research is important to be conducted. This research was to estimate sediment depositing rate in the strait in two areas, near shore and off shore of Borneo. The research was conducted on June to September 2015 used coring sediment samples. Those samples were derived from Baruna Jaya VIII Ship Cruise on June 2015 that was collaborative research between Ministry of Marine and Fisheries Affairs of Indonesia and National Nuclear Center of Indonesia (BATAN).Samples were analyzed in the laboratory of Chemical and Ocean, Department of Environmental and Natural Resources, Center of Radiation and Isotope, National Nuclear Center of Indonesia (BATAN). Estimation of sediment depositing rate used natural isotope 210Pb. The study shows that the depositing rate of the nearest to Borneo area is about 0.92 kg.m-2.y-1 (1965) and increases to be 3.31 kg.m-2.y-1 (2009). The other area is about 0.08 kg.m-2.y-1 (1840) and increases to be 1.78 kg.m-2.y-1 (2010). This result implies that the sediment depositing rate at the nearest area to Borneo is higher than the off shore. Keywords: Near shore, off shore, Natural Isotop 210Pb, CRS (Constant Rate of Supply) model

Zonasi Ekosistem Alami dengan Pendekatan Ekologi Lanskap Menggunakan Pemodelan Spasial Berbasis Sel di Pulau Karimunjawa dan Kemujan, Kabupaten Jepara, Jawa Tengah Muhammad Helmi
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 12, No 3 (2007): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Artikel ini difokuskan pada pendekatan ekologi lanskap dan pemodelan spasial berbasis sel untuk penyusunan zonasi ekosistem alami di Pulau Karimunjawa dan Kemujan. Zonasi ekosistem alami pada penelitian ini dilakukan pada 5 (lima) ekosistem yang terdiri dari terumbu karang, padang lamun, mangrove, hutan pantai dan hutan tropis dataran rendah. Karimunjawa dan Kemujan adalah dua pulau kecil yang berpenghuni dan terletak besebelahan.di dalam kawasan Taman Nasional Karimunjawa. Ekologi lanskap merupakan konsep yang mengintegrasikan aspek ekologi dan aspek spasial. Kondisi lanskap yang kompleks di pulau ini dapat disederhanakan dan direpresentasikan sebagai layer-layer tematik, diintegrasi menggunakan pemodelan spasial. Cell based modeling adalah pemodelan data spasial yang berbasis raster, sel atau piksel yang merepresentasikan area sebagai obyek yang spesifik. Kondisi ekologi lanskap pulau Karimunjawa dan kemujan direpresentasikan dalam sel dengan resolusi 10m x 10m dan dianalisis menggunakan teknik pemodelan topografi, hidrologi dan pembobotan untuk menyusun zonasi. Data spasial lanskap ekosistem alami diekstrak dari satelit penginderaan jauh Terra/ASTER, peta tematik dan survei. Hasilnya adalah zona konservasi yang terdiri dari subzona preservasi, sempadan (sempadan sungai, pantai dan mata air), rehabilitasi, situs bersejarah, pemanfaatan tradisional dan sub zona alur pelayaran di perairan Pulau Karimunjawa dan Kemujan. Kata kunci: Ekosistem alami, ekologi lanskap, pemodelan spasial berbasis sel. This article is focused to landscape ecology approach and cell based modeling for the natural ecosystem zonation in Karimunjawa and Kemujan. Natural Ecosystem zonation on this research is focused on five natural ecosystems, such as coral reef, sea weed, mangrove, coastal forest and low land tropical forest. Karimunjawa and Kemujan are two populated small island neighbors in Karimunjawa National Park, Central Java. Landscape ecology is an integrated concept of ecology and spatial aspect that can be used to design natural ecosystem zonation. A complex landscape condition in these islands can be simplified and represent as thematic layers, integrate and manage them using spatial modeling. Cell based modeling is spatial modeling data processing base on raster, cells or pixel that represent an area with specific object. Landscape ecology condition of Karimunjawa and Kemujan Islands is represent to 10m x 10m resolution of cell and analyst them using modeling techniques, such as topography, hydrology and weighted to design zonation. Landscape ecology of natural ecosystem spatial data are extracted from Terra/ASTER remote sensing satellite system, thematic map and survey. The result is conservation zone that consist of sub zones include preservation, protected areas (river and beach green belt and water spring), rehabilitation, historical/religious site areas, traditional use and sea lenes in Karimunjawa and Kemujan coastal area. Key words: Natural ecosystem, landscape ecology, cell based modeling

Pengaruh Selang Waktu Peletakkan Terhadap Keberhasilan Penetasan Telur Penyu Hijau (Chelonia mydas L.) (Effect of Planting Time on Egg Hatching Success of Green Turtle (Chelonia mydas L.) Edi Wibowo Kushartono; Endang Sri Susilo; Sayyidah Fatchiyyah
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 19, No 3 (2014): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Salah satu usaha konservasi melindungi Penyu hijau (Chelonia mydas L.) yaitu dengan tindakan relokasi dengan memindahkan telur dari sarang alami ke tempat penetasan semi alami. Waktu pemindahan dan peletakan telur yang tepat sangat diperlukan untuk memperoleh daya tetas maksimal. Tujuan penelitian ini untuk mengetahui pengaruh selang waktu peletakan telur Penyu Hijau terhadap keberhasilan penetasannya. Rancangan penelitian adalah Rancangan Acak Kelompok berdasarkan 3 induk yang berbeda dengan perlakuan selang waktu peletakan yaitu 2, 7 dan 12 jam. Pengukuran dan pengamatan kondisi lingkungan dilakukan selama inkubasi. Pengamatan munculnya tukik mulai dilakukan pada hari ke 50 masa inkubasi. Pembongkaran sarang dilakukan pada hari ke 60 masa inkubasi kemudian dilakukan pembedahan secara manual untuk mengamati telur yang gagal menetas. Hasil menunjukkan bahwa tidak ada pengaruh nyata secara signifikan adanya perbedaan selang waktu peletakan terhadap keberhasilan penetasan dan keberhasilan kemunculan. Namun selang waktu peletakan dengan nilai yang baik ditunjukkan pada 2 jam, dilanjutkan dengan 12 jam dan 7 jam. Kata kunci: penetasan, penyu hijau (Chelonia mydas L.), semi alami One of the conservation efforts undertaken to protect the green turtle (C. mydas L.) is by relocation of the nest where the eggs are removed from natural to semi-natural hatchery. A right time for the removal and burial of eggs are needed to obtain maximum hatching rate. The purpose of this study is to determine the impact of interval laying period on the hatching success of the green turtle eggs. Randomized block design is used which is based on three different turtles with treatment interval of burying, which is 2, 7, and 12 h. Measurements and observations were made during the environmental conditions of the incubation period. Observations hatchling emergence started on day 50 of incubation. Nest destruction was conducted on the 60th day incubation then eggs that failed to hatch were manually disected. The result showed that there is no significant influence of the time differences on the hatching success and emergence success. However, the best time was foound on 2h time treatment, folowed by 12h and 7h. Keywords: hatching, green turtle (Chelonia mydas L.), semi-natural hatchery

Penggunaan Repetitive Sequence-Based Polychain Reaction (REP-PCR) Untuk Pengelompokan Bakteri Vibrio yang Berasosiasi dengan Ikan Kerapu Sakit dari Perairan Karimunjawa Sarjito Sarjito
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 16, No 2 (2011): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Ikan kerapu sakit diperoleh dari keramba jaring apung yang berlokasi di perairan Karimunjawa. Penelitian ini bertujuan untuk mengkaji penggunaan Repetitive Sequence-Based Polychain Reaction (REP-PCR) untuk pengelompokan bakteri genus vibrio yang berasosiasi dengan berbagai ikan kerapu sakit. Sebanyak 32 isolat Vibrio berhasil diisolasi dari bagian luka maupun ginjal berbagai ikan kerapu sakit dengan medium Thiosulfat Citrat Bile Salt Agar (TCBSA). Hasil rep-PCR diperoleh bahwa terdapat delapan kelompok bakteri vibrio yang berasosiasi dengan ikan kerapu sakit. Oleh karena itu, pada penelitian ini, delapan isolat (JT 02, JT 07, JT 10, JT 13, JT 20, JT 24, JT 27, dan JT 31) yang masing-masing mewakili kelompoknya akan dilakukan uji selanjutnya. Teknik molekuler gen 16S rDNA digunakan untuk karakterisasi kedelapan isolat secara komprehensif. Berdasarkan analisis sekuen gen 16S rDNA, data menunjukkan bahwa isolat JT 02, JT 07, JT 10, JT 13, JT 20, JT 24, JT 27, dan JT 31 memiliki kekerabatan terdekat dengan Vibrio natriegens, V. olivaceus, V. damsella ATCC33, V. fortis, V. alginolyticus, V. harveyi, V. parahaemolyticus and V. carcharieae. Dari hasil penelitian ini dapat disimpulkan bahwa rep-PCR dapat digunakan untuk pendekatan molekuler secara efisien pada bakteri vibrio yang berasosiasi dengan kerapu sakit.Kata kunci: rep-PCR, Vibrio, Kerapu, Karimunjawa Moribound grouper fish was taken from the cages located in Karimunjawa waters. The research aim was to apply Repetitive Sequence-Based Polychain Reaction (REP-PCR) to group the vibriosis on groupers from Karimunjawa waters. Thirty two isolates of Vibrio were isolated from external wound and kidney of groupers. Based on the rep-PCR results found eight groups of vibrio bacteria associated with moribund groupers fish. Eight isolates, i.e. isolate of JT 02, JT 07, JT 10, JT 13, JT 20, JT 24, JT 27, and JT 31 were continued to characterize using the molecular techniques of 16S rDNA. Based on the results of sequen analysis, data showed that isolate of JT 02, JT 07, JT 10, JT 13, JT 20, JT 24, JT 27, and JT 31 was closely related to Vibrio natriegens, V. olivaceus, V. damsella ATCC33, V. fortis, V. alginolyticus, V. harveyi, V. parahaemolyticus and V. carcharieae, respectively . The present research concluded that rep-PCR was able to conduct biomoleculer approach efficiently for vibrios bacteria in moribund groupers fish. Key words: rep-PCR, Vibrio, groupers, Karimunjawa

Coloration Characteristic and Population Genetic Analysis of Wild-Captured Giant Tiger Shrimp (Penaeus monodon) from Aceh Timur Indriatmoko Indriatmoko; Dimas A. Hedianto; Sari Budi Moria; Didik WH Tjahjo
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 23, No 3 (2018): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Giant tiger shrimp (Penaeus monodon) has become a prime commodity in Indonesia which was produced by aquaculture and capture fisheries activities. Aceh Province, in this case mostly represented by Aceh Timur District, was well-known as the center of wild-captured-adult giant tiger shrimp. Several previous investigations had proved for its high-quality shrimp spawner in producing good eggs in quality and quantity under artificial spawning condition. Two main interesting points of wild giant tiger shrimp from Aceh Timur came from their coloration and population clusters. This report was aimed to provide that information pre-preliminary and highlighted quantitative information of coloration characteristic through RGB (Red Green Blue) and CIE Lab color space data analysis, as well as, 16S rDNA-PCR-RFLP genetic comparison among four population clusters in Aceh Timur Waters. The color analysis resulted in significant differences between wild-captured and pond-cultured giant tiger shrimp which produced R value 0.1524±0.0091 and 0.1268±0.0004, respectively. Total pixel analysis through L* a* b* color space has distinguished detailed differentiation between wild-captured and pond-cultured giant tiger shrimp acquired images. It is known that most of the wild-captured image pixels were concentrated in quadrant I (+a, +b) while pond-cultured in quadrant II (-a, +b) and III (-a, -b).Genotyping of represented samples from 4 population clusters, i.e. Aceh Tamiang, Langsa, Peudawa, and Julok produce 2 haplotype composite, AAA and AAB. Among 4 clusters, it was found that Julok has become the only cluster which has a different haplotype composite ratio (1:1) (D 0.0348, V 0,9501) from the others (4:1)(V 0.9504).

Studi Distribusi dan Kondisi Terumbu Karang dengan Menggunakan Teknologi Penginderaan Jauh di Kepulauan Spermonde, Sulawesi Selatan Abdul Rauf; Muh Yusuf
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 9, No 2 (2004): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Kepulauan Spermonde, yang terdiri dari 120 pulau, merupakan salah satu wilayah penyebaran terumbu karang yang cukup luas. Hingga saat ini belum tersedia data dan informasi yang cukup sebagai acuan dalamusaha pengelolaan dan pengembangan terumbu karang. Penelitian dikawasan terumbu karang dapat dilakukan dengan menggunakan data satelit penginderaan jauh untuk memberikan gambaran tentang distribusi dan kondisi terumbu karang di perairan dangkal dengan cakupan wilayah yang luas. Metode yang digunakan untuk memperoleh informasi terumbu karang dan mengeleminasi pengaruh kolom air dalam penelitian iniadalah metode yang didasari oleh Model Pengurangan Eksponensial (Standard exponential attenuation model). Hasil analisis spasial dengan menggunakan data Landsat_TM diperoleh informasi tingkat kerusakan terumbu karang di Kepulauan Spermonde. Berdasarkan hasil klasifikasi ini, tingkat kerusakan terumbu karang yang terjadi dalam kurung waktu 5 tahun mencapai 1.499,86 Ha atau sekitar 299,97 ha/tahun. Kondisi terumbu karang hidup berdasarkan analisis data lapangan menunjukkan bahwa Kepulauan Spermonde masih memiliki kondisi terumbu karang dengan katagori “Baik” dengan rata-rata presentase penutupan sekitar 50,98%.Kata kunci : Terumbu Karang, Citra Satelit Landsat_T.M., Kepulauan Spermonde.Spermonde Archipelago, covering approximately 120 Islands, have widely distributed coral reef. Currently, there are not enough data and information available for refereces used in management and development efforts. Satellite remote sensing data are applied in researches concerning coral reef to help broadly cover their distribution and condition in shallow water. The methode used in acquiring coral reef information and eliminating the water column effect based on the Standard Exponential Attenuation Medel. The level of coral reef demage in Spermonde archipelago were acquired using the spatial analysis on Landsat_TM data. Base on this classification result, the level of coral reef demage that happened in bracket time 5 years reach 1.499,86 Ha or about 299,97 ha / year. The condition of live coral reef based on field data analysis show that Spermonde Archipelago still have good category of coral reef condition with average percent covering about 50,98%.Key words : Coral reef, Satelite Landsat_T.M., Spermonde Islands

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