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Journal of Marine Research
Published by Universitas Diponegoro
ISSN : -     EISSN : 24077690     DOI : 10.14710/jmr.v9i4.28340
Core Subject : Science,
Earth & Planetary Sciences
The Journal of Tropical Fisheries Management is managed by the Department of Water Resource Management, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University aims to publish the results of basic, applied research in the scope of fisheries resources, fish stock studies, and population dynamics, fish biodiversity, fisheries technology, industrialization and fish trade, fisheries management, and fisheries development policies in the tropics, especially Indonesia. The scope of the area includes: Marine Fisheries Coastal Fisheries Inland Fisheries The focus and scope of this publication are expected to contribute thoughts for the government to strengthen the science of fisheries management
Arjuna Subject : -
Articles 687 Documents
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STUDI KESESUSIAN WISATA DI PANTAI SENDANG SIKUCING KABUPATEN KENDAL SEBAGAI OBJEK WISATA REKREASI PANTAI Prihantanto, Dimas Nugroho Ari; Pratikto, Ibnu; Irwani, Irwani
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (216.02 KB) | DOI: 10.14710/jmr.v3i3.6005

Abstract

Pantai Sendang Sikucing adalah pantai yang terdapat di Kabupaten Kendal Provinsi Jawa Tengah. Pantai Sendang Sikucing dengan semua potensinya telah ditetapkan oleh Pemerintah Provinsi Jawa Tengah diatur dalam Perda Provinsi Jawa Tengah Nomor 14 tahun 2004 tentang Rencana Induk Pengembangan Pariwisata Provinsi Jawa Tengah. Diharapkan dengan pengembangan dan pengelolaan yang tepat Pantai Sendang Sikucing sebagai Daerah Tujuan Wisata mampu meningkatkan Pendapatan Asli Daerah dan mensejahterakan masyarakat disekitarnya. Pemanfaatan sumberdaya pesisir dan laut di lingkup Kabupaten Kendal sudah diatur dalam Peraturan Daerah tentang Rencana Tata Ruang Wilayah Pesisir. Salah satu pemanfaatannya adalah pengembangan wisata untuk kegiatan rekreasi pantai. Namun seiring dengan berjalannya waktu, pengelolaan dan pengembangan kawasan Pantai Sendang Sikucing perlu diadakan studi kesesuaian wisata untuk pengembangan yang lebih tepat kedepannya. Tujuan dari penelitian ini adalah untuk mengetahui Kesesuaian Wisata di Pantai Sendang Sikucing sebagai Obje wisata Rekreasi Pantai.Penelitian ini dilakuakan dengan observasi lapangan pada bulan November 2013 sampai dengan bulan Januari 2014 di Kawasan Pantai Sendang Sikucing, yang terbagi menjadi 4 stasiun sepanjang garis pantai. Pengumpulan data primer berupa data parameter fisika dan kimia perairan dan parameter kesesuaian wisata seperti tipe pantai, lebar pantai, kemiringan pantai, kecerahan perairan, kedalaman perairan, material dasar perairan, penutupan lahan pantai, keberadaan biota berbahaya dan sampah, serta ketersediaan air tawar. Sedangkan metode yang digunakan untuk analisa hasil penelitian menggunakan metode deskriptif dengan menggunakan analisis Indeks Kesesuaian Wisata (IKW) yang menghasilkan nilai kesesuaian wisata. Berdasarkan hasil perhitungan dari Indeks Kesesuaian Wisata untuk kegiatan rekreasi pantai, bahwa kawasan Pantai Sendang Sikucing Kabupaten Kendal masih tergolong kategori Sangat Sesuai (S1) untuk stasiun 1, 2 dan 3 serta stasiun 4 masuk kategori Sesuai (S2) untuk kegiatan rekreasi pantai. Masyarakat menilai Pantai Sendang Sikucing masih dalam kondisi yang belum baik, sehingga diperlukan perbaikan sarana dan Prasarana.
Studi Densitas Dan Komposisi Jenis Juvenil Karang Pada Substrat Pecahan Karang Di Perairan Pulau Sambangan, Karimunjawa Sembiring, Yudhawira Bhaskara; Munasik, Munasik; Trianto, Agus
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (529.36 KB) | DOI: 10.14710/jmr.v7i4.25923

Abstract

ABSTRAK : Juvenil karang adalah bentuk hasil metamorfosis dan pertumbuhan planula karang yang berukuran ≤ 5 cm dan menempel pada substrat tertentu. Substrat pecahan karang merupakan substrat yang tidak stabil dan tidak cocok bagi juvenil karang untuk bertumbuh dan berkembang. Tujuan penelitian ini adalah untuk mengetahui densitas dan komposisi jenis koloni juvenil karang pada substrat pecahan karang (rubble) di perairan Pulau Sambangan, Kepulauan Karimunjawa. Penelitian dilakukan pada tanggal 29 November sampai 1 Desember 2013 di sebelah barat dan utara Pulau Sambangan. Penelitian ini dilakukan dengan menggunakan metode deskriptif. Metode yang digunakan untuk pemilihan lokasi adalah metode purposive sampling dan pengumpulan data mengunakan metode sampling dengan transek kuadran. Hasil penelitian menunjukkan bahwa densitas juvenil tertinggi sebesar 0,24 koloni/m2 yang ditemukan di sisi barat pulau dan densitas terendah ditemukan pada sisi barat dan sisi utara pulau sebesar 0,02 koloni/m2. Densitas rata-rata pada sisi barat pulau yaitu sebesar 0,0073 koloni/m2 sedangkan pada sisi utara pulau sebesar 0,0053 koloni/m2. Komposisi genus juvenil karang yang ditemukan pada lokasi penelitian adalah karang genus Acropora, Montipora, Galaxea, Fungia dan Cycloseris pada sisi barat dan karang genus Acropora, Montipora, Cycloseris, Leptoseris, Euphylia, dan Goniopora pada sisi utara Pulau Sambangan. Sisi utara didominasi oleh juvenil genus Acropora dan Montipora sebanyak 8 koloni tiap genus dan pada sisi barat didominasi oleh juvenil genus Montipora sebanyak 11 koloni. ABSTRACT : Coral Juvenile is a focus of planulae metamorphosis and growth that has size ≤ 5 cm and settle at a certain substrate. Rubble substrate is an unstable substrate and not suitable for coral juvenil to growth and evolve. The purpose of this research is to determine the density and composition of coral juvenile on rubble in the waters of Sambangan Island, Karimunjawa Archipelago. The research was conducted on November 29 to December 1, 2013 in the west and north Sambangan Island. This research was done  using descriptive method. The method that used for sampling site was purposive sampling method and data collection by using for sampling is quadrant transect. The result of research showed that the highest density of coral juvenile found on west site as many as 0,24 colony/m2 whereas the lowest density found on west and north site as many as 0,02 colony/m2. And the average density was 0,0073 colony/m2 on west site and 0,0053 colony/m2 on north site.  Composition of coral genus which found on research location were Acropora, Montipora, Galaxea, Fungia and Cycloseris on west site. Coral genus Acropora, Montipora, Cycloseris, Leptoseris, Euphylia, and Goniopora on north site Sambangan Island. On the north site dominated by juvenile Acropora and Montipora as many as 8 colonies of each genus and on the west side dominated by juvenile Montipora as many as 11 colonies.
TRANSPLANTASI LAMUN Thalassia hemprichii DENGAN METODE JANGKAR DI PERAIRAN TELUK AWUR DAN BANDENGAN, JEPARA Wulandari, Dwi; Riniatsih, Ita; Yudiati, Ervia
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.767 KB) | DOI: 10.14710/jmr.v2i2.2347

Abstract

The seagrass bed is a coastal ecosystem which have an important role for the coastal environment. The seagrass beds are vulnerable with changes of water environmental conditions. The decrease of seagrass beds area in the world are the result from environmental stresses both of natural and impact of human activities. Transplantation is one way of to rehabilitate the condition of seagrass beds were damaged. The purpose of this research was to determine the survival rate and the rate of growth of transplanted seagrass Thalassia hemprichii with anchor method at Teluk Awur and Bandengan Waters Jepara. The method used in this research was field experimental method. Determination of sites using purposive random sampling method. The research was conducted at two stations are Teluk Awur Water as Station I and Bandengan Water as Station II. Each station divided into 3 plots of observation. The environmental parameters were taken are: salinity, temperature, current velocity, depth, nitrate, phosphate, dissolved oxygen, organic matter, composition and grain size of the substrate. The results showed that the survival rate of seagrass transplants at Teluk Awur water was higher when compared to the survival rate of seagrass transplants at Bandengan water. The survival rate of seagrass transplants at Teluk Awur water have a range of of 38,89% to 41,67%, while the survival rate of seagrass transplants at Bandengan water have a range of 20,97% to 23,15%. The average range growth rate of seagrass transplants at Teluk Awur water was 0,13 cm/day to 0,16 cm/day, while the average range growth rate of seagrass transplants at Bandengan water was 0.16 cm/day up to 0.17 cm/day.
Struktur Komunitas Gastropoda Di Tracking Mangrove Kemujan, Taman Nasional Karimunjawa Syaiful Imam; Adi Santoso; Rudhi Pribadi
Journal of Marine Research Vol 3, No 4 (2014): Journal of Marine Research
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (358.146 KB) | DOI: 10.14710/jmr.v3i4.11420

Abstract

Taman Nasional Karimunjawa merupakan kawasan pelestarian alam dengan tingkat keanekaragaman hayati yang tinggi. Ekosistem mangrove Taman Nasional Karimunjawa yang sebelumnya kawasan perlindungan tertutup akan dijadikan kawasan terbuka untuk ekowisata dengan membangun Tracking Mangrove. Keberadaan Tracking Mangrove diduga akan berpengaruh terhadap kondisi ekologis gastropoda, sehingga perlu dilakukan pengkajian di lokasi ini  agar datanya dapat dijadikan baseline untuk memonitoring kondisi lingkungan yang akan dijadikan kawasan ekowisata mangrove.Tujuan penelitian ini untuk mengetahui data struktur komunitas gastropoda di Tracking Mangrove Kemujan, Taman Nasional Karimunjawa, Jepara. Penelitian di Tracking Mangrove Kemujan dilakukan di 8 stasiun. Penentuan lokasi sampling dengan metode purposive sampling method dan pengambilan sampel menggunakan metode kualitatif pada transek 5 m x 5 m.Hasil penelitian ditemukan 8 spesies gastropoda dari 5 famili. Jenis yang paling mendominasi adalah Cerithidea cingulata cingulata. Rata-rata kelimpahan gastropoda pada seluruh stasiun berkisar (55–179 ind/25 m2). Indeks Keseragaman (e) termasuk dalam kategori tinggi (0,65–093). Indeks Dominansi (C) menunjukkan tidak adanya dominansi dari jenis tertentu secara umum (0,07–0,80). Pola Sebaran di lokasi penelitian menunjukkan pola sebaran mengelompok (100 %) dan Indeks Kesamaan Komunitas antar stasiun penelitian berkisar (50 %–100 %) yang termasuk dalam kategori sedang – sangat tinggi
ANALISIS PERUBAHAN LUAS MANGROVE BERDASARKAN CITRA SATELIT IKONOS TAHUN 2004 DAN 2010 DI KECAMATAN MLONGGO, TAHUNAN DAN KEDUNG KABUPATEN JEPARA JAWA TENGAH Karyono, Afirman; Pribadi, Rudhi; Helmi, Muhammad
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (400.488 KB) | DOI: 10.14710/jmr.v2i3.3141

Abstract

Mangrove as one of coastal ecosystem has plenty of role on coastal stability, but the current condition even though of mangroves ecosystem is Java, including Jepara destructed by many reasons mostly human activities such as. Conversion of mangrove forests to ponds, settlements and illegal logging. Rehabilitation was conducted in some places. therefore, there is a need of review the changes. The purpose of this study to determine the mangrove area changes based on IKONOS satellite imagery of 2004 and 2010 in the District Mlonggo, Tahunan and Kedung, Jepara. Descriptive method is used to describe the state of research areas by comparing the field data and interpretation process. Satellite images have been digitized in overlay to know the changes at mangrove area. Ground check was conducted the field using the quadratic sampling plots of 10m x 10m to for tree, 5m x 5m for sapling and 1m x 1m for seedling. The results were increate that the between period of 2004 to 2010. However, the mangrove area increased 5,959 ha and reduced 5,294 ha and so there was in general 0.665 ha increased. The total area at mangrove in 2004 38,098 ha and in 2010 was variously 37,444. There were at least 20 species in the research area and Rhizophora sp was the most dominant species.
Biologi Ikan Kembung Rastrelliger spp, (Actinopterygii : Scombridae) : Ditinjau dari aspek Panjang Berat dan Indeks Kematangan Gonad Di Perairan Semarang Pratama, Candrika; Hartati, Retno; Redjeki, Sri
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (908.272 KB) | DOI: 10.14710/jmr.v8i2.25102

Abstract

Ikan kembung (Rastrelliger spp) merupakan salah satu ikan pelagis yang hidup di perairan bersalinitas tinggi dan suka hidup bergerombol. Semakin meningkatnya permintaan akan ikan membuat semakin tinggi penangkapan ikan yang dilakukan. Penelitian ini bertujuan mengetahui tingkat kematangan gonad ikan kembung (Rastrelliger spp) dan mengetahui hubungan antara panjang dengan berat, hubungan antara berat dengan fekunditas, dan hubungan antara berat gonad dengan IKG (Indeks Kematangan Gonad) dari ikan kembung (Rastrelliger spp).Sebanyak 80 ekor Ikan Kembung yang didapatkan dari pasar kobong diukur panjang total dan ditimbang beratnya. Kemudian dilakukan pembedahan untuk diamati jenis kelamin dan tingkat kematangan gonadnya. Penelitian ini meliputi: Indeks Kematangan Gonad, Tingkat Kematangan Gonad, fekunditas dan rasio kelamin. Pengamatan tingkat kematangan gonad dilakukan untuk menentukan indeks kematangan gonad (IKG). Tingkat kematangan gonad ikan kembung (Rastrelliger spp) terdiri dari TKG I sampai TKG V. Nilai IKG yang didapatkan untuk ikan jantan berkisar 0,14-6,42% dan betina berkisar 0,64-7,25%, hal tersebut menunjukkan bahwa nilai tersebut bervariasi antara ikan jantan dan betina. Hasil penelitian dengan 80 sampel ikan kembung menunjukkan rasio kelaminnya tidak seimbang yaitu 42,5:57,5 dimana angka jantan lebih tinggi. Pertambahan ukuran panjang memberikan pengaruh yang nyata terhadap fekunditas, pertambahan ukuran panjang ikan kembung betina memberikan pengaruh yang nyata terhadap berat, pertambahan ukuran panjang ikan kembung jantan memberikan pengaruh yang nyata terhadap berat. Sedangkan berat ikan betina tidak memberikan pengaruh yang nyata terhadap IKG dan berat ikan jantan memberikan pengaruh yang nyata terhadap IKG Rastrelliger spp is one of the pelagic fish that live in high salinity and like to live in groups. The increasing demand for this fish, makes the catching activity of this fish grow higher. The aim of the research is to know the Gonad Maturation Stage (GMS) of  Rastrelliger spp to know the relationship between length and weight, the relationship between weight with fecundity, and relationship between gonad weight and Gonad Maturation Index from Rastrelliger spp. 80 samples of Rastrelliger spp that were obtained from the market were measured, the measurement included were length and weight. And then a surgery was performed to examine their sex and their Gonad Maturation Stage. In the end to obtain the results of its fecundity, its gonad were taken and the weight was measured. GMI. Gonad maturation stage of Rastrelliger spp fish was I-V. the range of GMI for male fish was 0,14-6,42% and female 0,64-7,25%. That were indicated a various values of GMI male and female fishes. The result of research with 80 samples of Rastrelliger spp showed unbalanced sex ratio 42,5: 57,5 where male number was higher. The addition of length measure gave a real effect to fecundity, the increase of length of female gave a significant effect on the weight, the increase of length of  male gives a real effect on the weight. While the weight of female fish did not give a real effect on GMI and the weight of male fish gives a real effect on GMI
Struktur Vegetasi Dan Kerapatan Jenis Lamun Di Perairan Kepulauan Karimunjawa Kabupaten Jepara Wicaksono, Saputra Giri; Widianingsih, Widianingsih; Hartati, Sri Turni
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (350.249 KB) | DOI: 10.14710/jmr.v1i2.2016

Abstract

Seagrass is the only flowering plants (Angiospermae) that have the rhizome, leaves and true roots that live submerged in the sea. Seagrass also has an important role as a nursery ground and Spawning ground in the life cycle in the sea. Seagrass beds in the Karimunjawa Islands has broad category of closure medium (33.03 %, BTN Karimunjawa 2005). Increasing community activity and climate change can be devastated to the extreme concern of seagrass Karimunjawa that sustainability should be maintained, it is necessary to do some research and re-checking the condition of seagrass Karimunjawa. Data is collected in October of 2010 in 10 locations including Kampung Ragas, Alang Alang, Merican, Telaga, Legon Bajak, Kapuran, Menjangan Besar Island North and South, Bengkoang Island, and Menjangan Kecil Island. The method used is the quadrant-sized transects (1 x 1 m). The results showed that the Karimunjawa waters has 8 (eight) seagrass species. Seagrass species are often found in the Karimunjawa Islands is the kind of Cymodocea rotundata Karimunjawa and Thalassia hemprichii. Highest percent (%) coverage of seagrass found in the location of Telaga reach 75.9% by Enhalus acoroides. Seagrass beds in the waters Karimunjawa quite good with the percentage Seagrass coverage value of 59.94%.
OPTIMASI PENGGUNAAN ADSORBEN KITOSAN 0,9% TERHADAP DAYA SERAP AMONIAK DALAM AIR LIMBAH KILANG MINYAK OUTLET IMPOUNDING BASIN (OIB) PERTAMINA RU VI BALONGAN, INDRAMAYU Novritasari, Eksa; Sedjati, Sri; Yulianto, Bambang
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.031 KB) | DOI: 10.14710/jmr.v3i1.4597

Abstract

Products of petroleum of liquid waste can be caused pollution in the ocean. Waste contains of chemical element especially ammonia. High concentration of ammonia has toxicity for human and aquatic ecosystems. This Research was aimed to decrease concentration of ammonia by chitosan liquid. The research was conducted in Technological Laboratory of Pertamina RU VI Balongan Indramayu on March - April 2013. The Method of this research used randomized design with kind of treatments is 4 levels and 3 repetition. Treatments of this research used chitosan liquid 0,9% with different variation between chitosan liquid and sample of waste oil refinery, such as : (A) 4%; (B) 8%; (C)12%; (D)16%, with 30 minutes time contact. The largest decrease of ammonia contained in (C) 12% ± 12,83 mg/L (48,67%) and optimum adsorption is 10,28 % ± 13,87 mg/L (44,52%).
Komposisi Perifiton Pada Daun Lamun Enhalus acoroides, Royle 1839 (Angiosperms : Hydrocharitaceae) dan Thalassia hemrpichii, Ascherson 1871 (Angiosperms : Hydrocharitaceae) di Perairan Teluk Awur, Jepara Utama, Abdino Putra; Soenardjo, Nirwani; Endrawati, Hadi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (624.912 KB) | DOI: 10.14710/jmr.v8i4.24521

Abstract

ABSTRAK: Perifiton merupakan salah satu organisme yang berkontribusi besar dalam meningkatkan produktivitas primer di ekosistem lamun. Kondisi padang lamun sangat menentukan keberadaan perifiton, sehingga pada kondisi lamun yang baik merupakan tempat yang layak untuk penempelan perifiton. Aktivitas antropogenik akan menyebabkan gangguan maupun kerusakan pada lamun sehingga mempengaruhi penempelan perifiton pada lamun. Perairan Teluk Awur dekat dengan kegiatan-kegiatan antropogenik yang dapat menyebabkan gangguan pada kondisi lingkungan sekitarnya. Penelitian ini bertujuan untuk mengetauhi jenis dan kelimpahan perifiton yang hidup pada lamun jenis Enhalus acoroides dan Thalassia  hemprichii, serta kelimpahan perifiton pada tiap bagian daun (pangkal, tengah dan ujung). Pengambilan sampel daun lamun dilaksanakan Bulan November 2018 di Perairan Teluk Awur, Kabupaten Jepara. Identifikasi jenis lamun dilakukan pada lokasi penelitian, dan identifikasi jenis perifiton dilakukan pada laboratorium. Berdasarkan hasil penelitian bahwa, komposisi perifiton terdapat 6 kelas terdiri dari 23 genus dengan kelimpahan tertinggi selalu terdapat pada ujung daun. Genus yang paling sering ditemukan adalah Nitzschia. Kelimpahan perifiton pada lamun jenis E. acoroides dan T. hemprichii secara berturut – turut sebanyak 2689,33 individu/cm2 dan 3158,67 individu/cm2. Kelimpahan perifiton semakin meningkat ketika mendekati bagian ujung daun. ABSTRACT: Periphyton is one of the organism that contributes greatly in increasing primary productivity on seagrass ecosystems. Seagrass conditions greatly determine the presence of periphyton, so when a good seagrass conditions, it is a suitable place for periphyton attachment. Anthropogenic activity will cause disturbance and damage to seagrass, which affects the attachment of periphyton on seagrass. Teluk Awur waters are close to anthropogenic activities which can cause interference with the conditions of the surrounding environment.This study aims to determine the type and abundance of periphyton that lives on the types of seagrass leaves Enhalus acoroides and Thalassia hemprichii, as well as periphyton abundance in each part of the leaf (base, middle and tip).Sampling of seagrass leaves was carried out on November 2018 in Teluk Awur, Jepara Regency. Identification of seagrass species was carried out at the study site, and identification of the type of periphyton was carried out in the laboratory. Based on the results of the study, that on periphyton composition, 6 classes are consisting of 23 genera with the highest abundance always found at the tip of the leaf. The most common found genus is Nitzschia. Periphyton abundance in seagrass species E. acoroides and T. hemprichii respectively were 2689.33 Ind/cm2 and 3158,67 Ind/cm2. Periphyton abundance inceases as it approaches the tip of the leaves.
Kajian Perubahan Luas Lahan Mangrove Di Desa Bedono Kecamatan Sayung Kabupaten Demak Menggunakan Citra Satelit Ikonos Tahun 2004 Dan 2009 Chafid, Muhammad Abdul; Pribadi, Rudhi; Suryo, Agus Anugroho Dwi
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (497.355 KB) | DOI: 10.14710/jmr.v1i2.2034

Abstract

Mangroves have an important role in coastal areas that provide great functionality and benefits. Nowadays, the quality and quantity of mangrove management is declining because the management is unbalanced, such as a good land for mangrove growth were used for the development of aquaculture, settlement, and others. So, it is necessary for the proper management for the utilization of mangrove areas can be done optimally and sustainably. The management can be done through monitoring the condition of the mangrove, one of them by using remote sensing technology via satellite. The purpose of this research is to know the changes of wide in mangrove land in the coastal area in Bedono village, District Sayung, Demak district from 2004 to 2009. The method which is used in this research is descriptive method. It is fact-finding method with appropriate interpretation. For the field survey uses squared sampling method, it makes the plot measuring 10 m x 10 m for the tree category in which there are 5 m x 5 m subplot for sapling category and 1 m x 1 m for seedling category. The results show that the land accretion mangrove area in the Bedono Village of years 2004 - 2009, from 22.41 ha in 2004 to 43.03 ha in 2009. Density of the dense mangroves suffered extensive increment of 5.06 ha in 2004 to 27.06 ha in 2009, the density of the moderate mangrove area is suffered extensive accretion of 2.41 ha in 2004 to 8.89 ha in 2009, while the density of rare mangrove area has decreased from 14.94 ha in 2004 to 7.08 ha in 2009. The Composition of mangrove vegetation is found in the coastal in the Bedono Village, Sayung District consists of three species, namely Avicennia Marina, Rhizophora Mucronata and Rhizophora Stylosa. The mangrove dominance of tree category is occupied by Avicennia Marina, while the category of sapling and seedling mangroves is dominated by Rhizophora Mucronata.

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