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  • 1
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    Online Resource
    Biodiversity of Natuna as a Potential Ramsar Site of Wetlands with International Importance in Indonesia
    EDP Sciences ; 2021
    In:  E3S Web of Conferences Vol. 324 ( 2021), p. 03015-
    Details
    In: E3S Web of Conferences, EDP Sciences, Vol. 324 ( 2021), p. 03015-
    Abstract: Ramsar site designation is an acknowledgment of a wetland’s importance. In this study, we conducted a biodiversity survey around Natuna to examine its eligibility as the next Ramsar site in Indonesia. This biodiversity survey was conducted through sampling for biological resources, using either transect, trapping, or visual observation. We surveyed 32 sampling stations for endangered and vulnerable fish, water birds, and wetland-dependent species. Samples were identified in meristic and morphometric form. We identified numerous endemic species and critically endangered, threatened, and vulnerable species. The most prominent native species are the endemic Presbytis natunae. Notable wood species are Eusideroxylon zwageri and Dipterocarpus sp., both critically endangered species. Sea grass species found in the coastal regions are Halodule pinifolia, Halophila ovalis, Enhalus acoroides, and Thalassia hemprichii. There are 52 species of fish found in the Natuna Sea, notably Bolbometopon muricatum, Oxymonacanthus longirostris, Plectropomus areolatus, and the endemic Cheilinus undulates. Numerous migrating birds and water birds are also found in the wetland and coastal region. The study concluded that Natuna fulfilled as a Ramsar site criteria based on its biodiversity characteristics and the support it provided to vulnerable species. We call for concentrated effort from the government for a successful nomination of Natuna as a Ramsar site..
    Type of Medium: Online Resource
    ISSN: 2267-1242
    URL: Article
    DOI: 10.1051/e3sconf/202132403015
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2021
    detail.hit.zdb_id: 2755680-3
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  • 2
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    Pemetaan Luasan Hutan Mangrove Dengan Menggunakan Citra Satelit Di Pulau Mapur, Provinsi Kepulauan Riau
    Institute of Research and Community Services Diponegoro University (LPPM UNDIP) ; 2022
    In:  Jurnal Kelautan Tropis Vol. 25, No. 1 ( 2022-02-23), p. 20-30
    Details
    In: Jurnal Kelautan Tropis, Institute of Research and Community Services Diponegoro University (LPPM UNDIP), Vol. 25, No. 1 ( 2022-02-23), p. 20-30
    Abstract: Mapping can be used as an alternative solution to find out the distribution map of the mangrove ecosystem by utilizing remote sensing technology and can provide value to the mangrove ecosystem. The purpose of this study was to map the distribution of mangrove ecosystems on Mapur Island. Sentinel-2b image is one of the satellite imageries had performance used to analyze the distribution of mangrove ecosystems. The mapping of the distribution of mangroves on Mapur Island shows that the mangrove ecosystem is distributed from the east to the northwest of Mapur Island. The northern part of Mapur Island has a sandy substrate classification that does not allow the growth of mangroves in the area. The distribution of mangrove classification results using Sentinel Citra-2b has a high pixel value classified of 88%, the comparison the accuracy of in situ data classification of 80%. The largest mangrove density is on Mapur Island, with a value of density of 156,729 ha. Pemetaan dapat dijadikan salah satu solusi alternatif untuk mengetahui peta sebaran luasan ekosistem mangrove dengan memanfaatkan teknologi penginderaan jauh dan dapat memberikan nilai luasan ekosistem mangrove. Tujuan dari penelitian ini adalah melakukan pemetaan sebaran luasan ekosistem mangrove di Pulau Mapur. Citra Sentinel-2b merupakan salah satu citra yang dapat digunakan untuk menganalisis sebaran luasan ekosistem mangrove. Hasil dari pemetaan sebaran mangrove di Pulau Mapur dapat dilihat bahwa ekosistem mangrove tersebar di bagian timur hingga barat laut Pulau Mapur. Bagian utara Pulau Mapur mempunyai tipe substrat yang berpasir sehingga tidak memungkinkan tumbuhan mangrove dapat tumbuh di daerah tersebut. Sebaran mangrove hasil klasifikasi dengan menggunakan Citra Sentinel-2b memiliki nilai piksel terklasifikasi hamper sempurna adalah 88%, sedangkan akurasi klasifikasi terhadap lapangan 80%. Kerapatan mangrove di Pulau Mapur yang paling luas dengan tingkat kerapatan padat dengan luas 156.729 ha. 
    Type of Medium: Online Resource
    ISSN: 2528-3111 , 1410-8852
    URL: Article
    DOI: 10.14710/jkt.v25i1.12294
    Language: id
    Publisher: Institute of Research and Community Services Diponegoro University (LPPM UNDIP)
    Publication Date: 2022
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  • 3
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    Online Resource
    Characteristic of Sea Waves Southern Batam City waters-Northen Lingga District waters
    Politeknik Negeri Batam ; 2020
    In:  Journal of Applied Geospatial Information Vol. 4, No. 2 ( 2020-07-15), p. 367-371
    Details
    In: Journal of Applied Geospatial Information, Politeknik Negeri Batam, Vol. 4, No. 2 ( 2020-07-15), p. 367-371
    Abstract: The southern Batam City sea and northern of Lingga District sea are often used by fishing locations and shipping traffic from Batam City to Lingga District. Southern of Batam City sea-northen Lingga District sea have uncertain sea wave conditions that can affect the stability of ship traffic. The purpose of this study is to determine characteristic of sea waves along with wind speed and directions. Characteristic analysis of ocean waves using the SPM (Shore Protection Manual) method from wind direction and speed data in 2018. The height of ocean waves in the northen Batam City sea-southern Lingga District during 2018 is 2.59 meters with periods of 8.47 s up to 0.005 m with a period of 0.39 s. The average wave height in 2018 is 0.69 m with sea wave characteristic patterns still following seasonal wind conditions. The highest sea wave height conditions are in the northern season due to the geographical location of the southern Batam City sea-southern Lingga District sea in the Northern Hemisphere.
    Type of Medium: Online Resource
    ISSN: 2579-3608
    URL: Issue
    URL: Article
    DOI: 10.30871/jagi.v4i2
    DOI: 10.30871/jagi.v4i2.1458
    Language: Unknown
    Publisher: Politeknik Negeri Batam
    Publication Date: 2020
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  • 4
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    Online Resource
    TINGKAT KERENTANAN PESISIR DI UTARA DAN TIMUR PULAU BINTAN PROVINSI KEPULAUAN RIAU TAHUN 2020
    Jurnal Teknologi Perikanan dan Ilmu Kelautan ; 2021
    In:  Jurnal Teknologi Perikanan dan Kelautan Vol. 11, No. 1 ( 2021-03-24), p. 11-27
    Details
    In: Jurnal Teknologi Perikanan dan Kelautan, Jurnal Teknologi Perikanan dan Ilmu Kelautan, Vol. 11, No. 1 ( 2021-03-24), p. 11-27
    Abstract: Wilayah pesisir sangat unik, dinamis, dan kompleks karena merupakan zona interaksi antara daratan, lautan, dan atmosfer. Hal ini menjadikan wilayah pesisir sebagai wilayah yang paling rentan di Bumi. Untuk mengetahui seberapa besar kerentanan di suatu wilayah pesisir, perlu dilakukan penelitian untuk mengetahui tingkat kerentanan wilayah pesisir dan faktor yang mempengaruhi. Penelitian mengenai tingkat kerentanan pesisir di lokasi ini pernah dilakukan pada tahun 2016 dan diperoleh simpulan bahwa tingkat kerentanan pesisir berada pada kategori sedang. Dengan semakin berkembangnya pemanfaatan potensi di daerah tersebut maka dirasa perlu dilakukan penelitian serupa dengan tahun 2016 untuk mengetahui apakah terdapat perubahan tingkat kerentanan antara tahun 2016 dengan tahun 2020. Data-data yang digunakan terdiri dari Data-data yang digunakan terdiri dari  geomorfologi pantai, pasang surut, citra satelit Landsat 7 ETM+ dan 8 OLI, kenaikan muka laut dan DEM. Analisis data menggunakan metode Coastal Vulnerability Index (CVI). Hasil penelitian menunjukkan tingkat kerentanan pesisir di lokasi penelitian berada pada kategori rendah-sedang, dengan kisaran skor CVI 9,93-25,86. Topografi, geomorfologi, intensitas perubahan garis pantai, dan kemiringan pantai merupakan faktor yang dapat menyebabkan tingkat kerentanan di lokasi penelitian menjadi sangat tinggi. Namun, keterhubungan antara parameter lain yang dapat menjadi faktor penghambat tingginya tingkat kerentanan, menyebabkan tingkat kerentanan pesisir di lokasi penelitian hanya berada dalam kategori rendah-sedang. Terdapat perubahan kondisi tingkat kerentanan antara tahun 2016 dengan tahun 2020 dimana pada tahun 2020 tingkat kerentanan di pantai timur mengalami penurunan menjadi kategori rendah.
    Type of Medium: Online Resource
    ISSN: 2549-3841 , 2087-4871
    URL: Article
    DOI: 10.24319/jtpk.11.11-27
    Language: Unknown
    Publisher: Jurnal Teknologi Perikanan dan Ilmu Kelautan
    Publication Date: 2021
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  • 5
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    ESTIMASI KANDUNGAN STOK KARBON PADA EKOSISTEM PADANG LAMUN DI PERAIRAN DOMPAK DAN BERAKIT, KEPULAUAN RIAU
    Institut Pertanian Bogor ; 2020
    In:  Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12, No. 3 ( 2020-12-31), p. 849-862
    Details
    In: Jurnal Ilmu dan Teknologi Kelautan Tropis, Institut Pertanian Bogor, Vol. 12, No. 3 ( 2020-12-31), p. 849-862
    Abstract: Salah satu peran penting ekosistem lamun yaitu sebagai penyerap karbon yang berasal dari atmosfer. Pulau Bintan merupakan salah satu pulau dengan hamparan padang lamun yang cukup luas. Penelitian ini bertujuan untuk mengestimasi kandungan karbon pada padang lamun yang berasal dari seluruh jenis lamun dan sedimen yang berada di perairan Berakit dan Dompak Pulau Bintan. Penentuan potensi cadangan karbon dilakukan dengan melihat estimasi cadangan karbon di dalam sedimen dan biomassa lamun meliputi bagian atas (daun dan pelepah daun) dan bagian bawah lamun (rhizome dan akar). Pengukuran stok karbon pada sedimen lamun dilakukan dengan menggunakan metode pengabuan kering atau Loss on Ignation (LOI) dan kandungan karbon pada biomassa lamun diukur menggunakan metode konversi dengan konstanta. Hasil penelitian menunjukkan pada stasiun Berakit estimasi total cadangan karbon sedimen sebesar 91 Mg Corg ha-1 dan 10,58 Mg C/m2 untuk estimasi kandungan karbon lamun, sedangkan stasiun Dompak nilai estimasi total cadangan karbon pada sedimen berkisar103,80 Mg Corg ha-1 dan 3,34 Mg C/m2 untuk estimasi kandungan karbon bagian lamun. Kandungan karbon pada substrat dipengaruhi oleh komposisi sedimen dan kandungan karbon pada lamun dipengaruhi oleh kerapatan lamun.  
    Type of Medium: Online Resource
    ISSN: 2620-309X , 2087-9423
    URL: Issue
    URL: Article
    DOI: 10.29244/jitkt.v12i3
    DOI: 10.29244/jitkt.v12i3.32199
    Language: Unknown
    Publisher: Institut Pertanian Bogor
    Publication Date: 2020
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  • 6
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    Pemetaan Luasan Ekosistem Lamun Menggunakan Citra Sentinel 2A Tahun 2018 Dan Tahun 2020 Di Perairan Desa Pengudang, Pulau Bintan
    Institute of Research and Community Services Diponegoro University (LPPM UNDIP) ; 2023
    In:  Buletin Oseanografi Marina Vol. 12, No. 3 ( 2023-10-01), p. 403-412
    Details
    In: Buletin Oseanografi Marina, Institute of Research and Community Services Diponegoro University (LPPM UNDIP), Vol. 12, No. 3 ( 2023-10-01), p. 403-412
    Abstract: Ekosistem lamun dapat terganggu oleh berbagai faktor seperti perubahan suhu, polusi, kerusakan habitat, destructive fishing, dan pencemaran laut. Pemantauan kondisi lamun sangat penting dilakukan untuk memastikan keseimbangan ekosistem tetap terjaga, terutama pada daerah konservasi seperti di Desa Pengudang yang menjadi wilayah konservasi lamun. Salah satu cara yang dapat digunakan dalam mengamati kondisi ekosistem lamun untuk melihat perubahan yang terjadi adalah menggunakan kombinasi sistem informasi geografis dengan pengindraan jauh. Pada teknologi pengindraan jauh data yang digunakan yaitu Citra Sentinel-2A. Tujuan dari penelitian ini adalah memetakan luasan lamun di perairan Desa Pengudang dengan menggunakan Algoritma Lyzenga. Metode Lyzenga dikenal dengan nama metode depth-invariant index atau metode water column correction (koreksi kolom air). Koreksi kolom air bertujuan untuk mengeliminasi kesalahan identifikasi spektrum habitat karena faktor kedalaman selanjutnya dilanjutkan dengan proses supervised classification pada citra. Luasan lamun di perairan Desa Pengudang didapatkan berdasarkan hasil analisis klasifikasi terbimbing. Citra Sentinel-2A pada tahun 2018 mencapai angka 8.43 dan pada tahun 2020 mengalami penurunan dengan angka 7.30 hektar dengan nilai uji akurasi 80%. Penurunan luas padang lamun di perairan Desa Pengudang disebabkan oleh beberapa faktor, salah satunya adalah pencemaran minyak di wilayah Bintan yang terjadi secara teratur setiap tahun dan telah mempengaruhi kondisi ekosistem di wilayah tersebut.    Seagrass ecosystems can be disturbed by various factors such as changes in temperature, pollution, habitat destruction, and human activities, including unsustainable fishing, marine pollution, and chemical use. Therefore, monitoring the condition of seagrass ecosystems is essential to ensure the balance of the ecosystem is maintained, especially in conservation areas. Pengudang Village is one of the villages that has been designated as a seagrass conservation area. One of the ways to observe the condition of seagrass ecosystems and detect changes is to use a combination of geographic information systems and remote sensing. The data used in remote sensing technology is the Sentinel-2A image. The purpose of this research is to map the seagrass area in the waters of Pengudang Village using the Lyzenga Algorithm, also known as the depth-invariant index method or water column correction method. The water column correction method aims to eliminate errors in habitat spectral identification due to depth factors before proceeding with the supervised classification process on the image. The seagrass area in the waters of Pengudang Village was obtained based on the results of the supervised classification analysis. The Sentinel-2A imagery in 2018 covered an area of 8.43 hectares, and in 2020, it decreased to 7.30 hectares with an accuracy test value of 80%. The decrease in the seagrass area in the waters of Pengudang Village is caused by several factors, one of which is oil pollution in the Bintan region, which occurs regularly every year and has affected the condition of the ecosystem in the region.
    Type of Medium: Online Resource
    ISSN: 2550-0015 , 2089-3507
    URL: Article
    DOI: 10.14710/buloma.v12i3.52800
    Language: id
    Publisher: Institute of Research and Community Services Diponegoro University (LPPM UNDIP)
    Publication Date: 2023
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  • 7
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    Perbandingan Penerapan Hasil Metode Admiralty dan Least Square untuk Peramalan Pasang Surut di Selat Bintan, Kepulauan Riau
    University of Trunojoyo Madura ; 2022
    In:  Jurnal Kelautan: Indonesian Journal of Marine Science and Technology Vol. 15, No. 3 ( 2022-12-30), p. 258-269
    Details
    In: Jurnal Kelautan: Indonesian Journal of Marine Science and Technology, University of Trunojoyo Madura, Vol. 15, No. 3 ( 2022-12-30), p. 258-269
    Abstract: ABSTRACTThe Bintan Strait is an area where some of the community's activities are influenced by tidal phenomena, such as; sea transportation for shipping, crossing, and traditional fishing. This study aims to analyze the characteristics of the tide include; sea level elevation, harmonic constant value, tidal type and tidal forecast for the next year. The calculation of the harmonic constants is carried out using the Admiralty and Least Square methods. This research has been carried out from March to July 2021. Primary data collection of high water level is carried out with the Tide Master instrument for 7 days. In addition to primary data, secondary data used for 22 days of high water levels from BIG (Geospatial Information Agency). The Admitralty and Least Square methods are operated using Microsoft Excel software, while for tidal forecasting analysis using MIKE21 and World Tides software. The results show that the Formzahl Admiralty and Least Square numbers are 0.35 and 0.97, respectively, with the types of tides being mixed tide prevailing semidiurnal. The MSL values for each method of Admiralty and Least Square obtained values of 154.11 cm and 118.37 cm, MHWL = 233.47 and 268.31, LLWL = 43.11 and 254.56, MHWS = 230.22 and 215, 52, MLWS= 78.01 and 21.22, MLWL= 74.75 and -31.57. The results of the forecasting test for the next 3, 6 and 12 months using the Admiralty method produced the smallest RMSE of 0.664.Keywords:  Admiralty, Least Square, Tides, Bintan straitABSTRAKSelat Bintan merupakan sebuah daerah dimana sebagian aktivitas masyarakatnya dipengaruhi fenomena pasang surut, seperti; transportasi laut untuk keperluan pelayaran, penyeberangan, maupun penangkapan ikan tradisional. Penelitian ini bertujuan untuk menganalisis karakteristik pasut meliputi; elevasi muka air laut, nilai konstanta harmonic, tipe pasut dan peramalan pasang surut untuk satu tahun kedepan. Perhitungan konstanta harmonik dilakukan dengan metode Admiralty dan Least Square. Penelitian ini telah dilakasanakan pada bulan Maret sampai dengan Juli 2021. Pengumpulan data primer tinggi level muka air dilakukan dengan istrumen Tide Master selama 7 hari. Selain data primer digunakan data sekunder tinggi level air selama 22 hari berasal dari BIG (Badan Informasi Geospasial). Metode Admitralty dan Least Square dioperasionalkan menggunakan perangkat lunak Microsoft Excel, sedangkan untuk analisis peramalan pasut menggunakan perangkat lunak MIKE21 dan World Tides. Hasil penelitian menunjukkan bilangan Formzahl Admiralty dan Least Square masing-masing sebesar 0.35 dan 0.97 dengan tipe pasang surut keduanya adalah campuran condong keharian ganda (mixed tide prevailing semidiurnal). Nilai MSL  untuk masing-masing metode Admiralty dan Least Square diperoleh nilai sebesar 154.11 cm dan 118,37 cm, MHWL= 233,47 dan 268,31, LLWL= 43,11 dan 254,56, MHWS= 230,22 dan 215,52, MLWS= 78,01 dan 21,22, MLWL= 74,75 dan -31,57. Hasil uji peramalan pada waktu 3, 6 dan 12 bulan kedepan pada metode Admiralty menghasilkan RMSE terkecil sebesar 0,664. Kata kunci:  Admiralty, Least Square, Pasang surut, Selat Bintan
    Type of Medium: Online Resource
    ISSN: 2476-9991 , 1907-9931
    URL: Issue
    URL: Article
    DOI: 10.21107/jk.v15i3
    DOI: 10.21107/jk.v15i3.11406
    Language: Unknown
    Publisher: University of Trunojoyo Madura
    Publication Date: 2022
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  • 8
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    Wave Energy Potential for Development of Renewable Energy in Riau Archipelago Province
    Universitas Jenderal Soedirman ; 2020
    In:  Omni-Akuatika Vol. 16, No. 3 ( 2020-12-30), p. 61-
    Details
    In: Omni-Akuatika, Universitas Jenderal Soedirman, Vol. 16, No. 3 ( 2020-12-30), p. 61-
    Abstract: Energy and electricity demand in Riau Islands is increasing rapidly due to the fast-growing population, urbanization, industrial development, and economic growth. The limitations of energy and electricity in the Riau Islands caused frequent blackouts. To support the high demand for energy and electricity in the Riau Islands, renewable energy is the most suitable alternative energy solution. Renewable energy is not only playing a key role in providing energy but also providing long-term clean and sustainable energy. We investigated the wave energy potential in the Riau Islands Sea in four different consecutive monsoons (North monsoon, East monsoon, South Monsoon and West Monsoon) using ECMWF data during January 2018 to December 2018 with 0.125o x 0.125o and 6 hourly spatial and temporal resolutions. We extracted bathymetry data from NOAA’s database ETOPO1 and forecasting wave characteristics use the SPM (Shore Protection Manual) method. The potential wave energy simulation from significant wave height (Hs) and energy period (Te) was shown in spatial distribution based on different monsoon. Our studies found that the potential wave energy was higher in north monsoon with maximum spatial of wave power density 3.240 – 3.640 kW.m-1. The east monsoon tended to be lower potential wave energy with dominance of wave power density at 0 – 0.127 kW.m-1. Keywords: wave power density, potential wave energy, ECWFM, monsoon
    Type of Medium: Online Resource
    ISSN: 2476-9347 , 1858-3873
    URL: Article
    DOI: 10.20884/1.oa.2020.16.3.857
    Language: Unknown
    Publisher: Universitas Jenderal Soedirman
    Publication Date: 2020
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  • 9
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    Online Resource
    Correlation of Water Quality with Microplastic Exposure Prevalence in Tilapia ( Oreochromis niloticus )
    EDP Sciences ; 2021
    In:  E3S Web of Conferences Vol. 324 ( 2021), p. 03008-
    Details
    In: E3S Web of Conferences, EDP Sciences, Vol. 324 ( 2021), p. 03008-
    Abstract: The highly use of polyethylene plastics in Indonesia has negative impact toward freshwater aquaculture systems. Omnivorous fish is one of the freshwater biota that exposed by microplastics. This study aims to determine the effect of microplastics to water quality and the prevalence of microplastic exposure in tilapia. The experimental design is conducted using a microplastic exposure (polyethylene scrub) with concentration of 0.01 g/L (P1), 0.1 g/L (P2), and 1 g/L (P3). Each treatment is repeated 3 times. The organ groups observed are the gastrointestinal, liver, gills, and gonads. The stages of the research including fish raising, microplastic extraction, water quality measuring parameter, and counting the amount of microplastics. The result obtained for water quality parameter is temperature, pH, and dissolved oxygen still within safe fish farming limit. Microplastics at high concentration in water can cause a decrease in the total value of ammonia and do not affect the value of water temperature, pH, and dissolved oxygen. Microplastics are found in the digestive organs, liver, gills, and gonads. The digestive tract of tilapia is the organ with the most microplastics after 14 days of exposure. It is concluded that microplastic is harmful for the life of tilapia because it can absorb to the liver and gonads.
    Type of Medium: Online Resource
    ISSN: 2267-1242
    URL: Article
    DOI: 10.1051/e3sconf/202132403008
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2021
    detail.hit.zdb_id: 2755680-3
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  • 10
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    KARAKTERISTIK PASANG SURUT DI PERAIRAN PULAU BINTAN BAGIAN TIMUR MENGGUNAKAN METODE ADMIRALTY
    University of Trunojoyo Madura ; 2021
    In:  Jurnal Kelautan: Indonesian Journal of Marine Science and Technology Vol. 14, No. 1 ( 2021-04-30), p. 58-69
    Details
    In: Jurnal Kelautan: Indonesian Journal of Marine Science and Technology, University of Trunojoyo Madura, Vol. 14, No. 1 ( 2021-04-30), p. 58-69
    Type of Medium: Online Resource
    ISSN: 2476-9991 , 1907-9931
    URL: Issue
    URL: Article
    DOI: 10.21107/jk.v14i1
    DOI: 10.21107/jk.v14i1.9928
    Language: Unknown
    Publisher: University of Trunojoyo Madura
    Publication Date: 2021
    detail.hit.zdb_id: 2883524-4
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