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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis ILMU KELAUTAN: Indonesian Journal of Marine Sciences Majalah Geografi Indonesia Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Al-Ahkam Jurnal Ilmiah Perikanan dan Kelautan Journal of Applied Geospatial Information Jurnal Sumberdaya Akuatik Indopasifik Omni-Akuatika Dinamika Maritim Jurnal Kelautan Nasional
Nyoman M N Natih
Departemen Ilmu Dan Teknologi Kelautan, FPIK - Institut Pertanian Bogor, Bogor
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ETHNOOCEANOGRAPHY DAN TITIK TEMU ASPEK SYAR’I DALAM PENENTUAN AWAL BULAN RAMADHAN DAN SYAWAL OLEH JOGURU KESULTANAN TIDORE Salnuddin, Salnuddin; Nurjaya, I Wayan; Jaya, Indra; Natih, Nyoman M.N
Al-Ahkam Volume 27, Nomor 1, April 2017
Publisher : Faculty of Shariah and Law, State Islamic University (UIN) Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3091.196 KB) | DOI: 10.21580/ahkam.2017.27.1.1073

Abstract

Ethnooceanography and the intersection of shar'i aspects to determination of the early of Ramadan and Shawwal by Joguru Sultanate of Tidore. The determination of the early of the new month of Ramadan and Shawwal was very important for Muslims because it is related to the time of worship. Judge syara 'The Sultanate of Tidore (Joguru) has long applied the method of determining the early month of Hijri (Ramadan and Shawwal) through tidal movement observed on "akebai" included in ethooceanography and called Joguru Method (MJ). Hilal that has never been seen in Tidore and its surrounding areas in the long-term cycle of moon (34 years) caused its early moon to be inapplicable due to non-fulfillment of the requirement of hisab (hadith). MJ makes observation (rukyat) change of tidal movement on "akebai" is "ijtihād". The appropriateness of the scientific aspects of ethnoocaenography and the intersection of the shar'i aspects make it a comparative method of determining the beginning of the new month of Hijri in astronomy (hilāl). Required the expansion of the meaning of the “hilāl” as an indicator of the beginning of the month of the Hijri calendar.[]Ethnooceanography dan titik temu aspek Syar’i dalam penentuan awal bulan Ramadhan dan Syawal oleh Joguru Kesultanan Tidore. Penentuan awal bulan baru Ramadhan dan Syawal sangat penting bagi umat Islam karena berkaitan dengan waktu ibadah. Hakim syara’ Kesultanan Tidore (Joguru) telah lama mengaplikasikan metode penentuan awal bulan baru Hijriah (Ramadhan dan Syawal) melalui pergerakan pasang surut yang terpantau pada “akebai” termasuk dalam ethooceanography dan disebut dengan Metode Joguru (MJ). Hilal yang tidak pernah terlihat di wilayah Tidore dan sekitarnya selama siklus jangka panjang (34 tahun) menyebabkan hisab awal bulan tidak dapat diaplikasikan akibat tidak terpenuhinya persyaratan hisab (hadis). MJ melakukan peng­amatan (rukyat) perubahan tinggi air pada “akebai” adalah “ijtihad”. Terdapat ke­sesuaian aspek sains dari ethnoocaenography serta titik temu aspek syar’i yang menjadikan MJ berpotensi sebagai metode utama sekaligus sebagai metode pem­banding dari metode umum dalam penentuan awal bulan baru Hijriah. Diperlukan perluasan makna kata “hilal” sebagai indikator awal bulan baru penanggalan Hijriah.
KARAKTERISTIK GELOMBANG LAUT PANTAI TIMUR PULAU BINTAN PROVINSI KEPULAUAN RIAU TAHUN 2005-2014 Suhana, Mario Putra; Nurjaya, I Wayan; Natih, Nyoman Metta
Dinamika Maritim Vol 6 No 2 (2018): Dinamika Maritim, Vol. 6 No. 2, February 2018
Publisher : Coastal and Marine Resources Research Center, Raja Ali Haji Maritime University, Tanjungpinang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (847.873 KB)

Abstract

Salah satu faktor penting yang sangat mempengaruhi proses dinamika pantai adalah gelombang laut. Arus menyusur pantai (long-shore current) merupakan salah satu proses oseanografi fisik yang timbul akibat hempasan gelombang laut ketika menghantam pantai. Selain itu, proses sedimentasi juga merupakan salah satu proses oseanografi fisik yang disebabkan oleh gelombang laut. Melihat begitu besarnya peranan dan pengaruh gelombang laut terhadap segala dinamika yang terjadi di pantai, dirasa perlu untuk dilakukan sebuah kajian mengenai karakteristik gelombang laut di suatu perairan. Untuk menjawab tujuan penelitian ini, metode yang digunakan adalah menggunakan metode peramalan menggunakan data arah dan kecepatan angin. Data arah dan kecepatan angin yang digunakan merupakan data hasil publikasi BMKG Kota Tanjungpinang tahun 2005-2014. Selama tahun 2005-2014 perairan pantai timur Pulau Bintan dipengaruhi oleh angin yang bertiup dari arah utara dan selatan dengan frekuensi kejadian 22.48 % dan 20.97 %. Kecepatan angin yang bertiup dari arah utara berkisar antara 5.70-8.80 m/s sedangkan kecepatan angin yang bertiup dari arah selatan berkisar antara 3.60-5.70 m/s. Selain dari arah utara dan selatan, angin yang bertiup dari arah tenggara juga memiliki frekuensi kejadian yang cukup tinggi yaitu 18.85 % dengan kecepatan angin dominan berkisar antara 3.60-5.70 m/s. Tinggi gelombang laut harian yang terbentuk di perairan pantai timur Pulau Bintan yang disebabkan oleh angin selama tahun 2005-2014 berkisar antara 0.10-4.55 m dengan tinggi gelombang laut dominan berkisar antara 0.10-0.50 m, sedangkan periode gelombang laut berkisar antara 1.10-11.23 s. Tinggi gelombang laut maksimum yang terbentuk di perairan pantai timur Pulau Bintan umumnya terjadi pada puncak musim utara (Desember-Februari) dan musim selatan (Juni-Agustus) hal ini disebabkan oleh kecepatan angin yang bertiup di perairan pantai timur Pulau Bintan selama musim barat dan musim timur lebih tinggi dibandingkan dengan musim lainnya.
KARAKTERISTIK SEDIMEN PANTAI TIMUR PULAU BINTAN ROVINSI KEPULAUAN RIAU Suhana, Mario Putra; Nurjaya, I Wayan; Natih, Nyoman Metta N.
Dinamika Maritim Vol 7 No 1 (2018): Dinamika Maritim, Vol. 7 No. 1, August 2018
Publisher : Coastal and Marine Resources Research Center, Raja Ali Haji Maritime University, Tanjungpinang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (616.905 KB)

Abstract

The research carried out is one part of a series of researches concerning shoreline changes of east coast of Bintan Island during 2005-2014. In this part of the study analyzed the characteristics of coastal sediments of east coast of Bintan Island which is one of the factors that compose the beach profile. Analysis of sediment samples follows standard procedures of ASTM (American Society for Testing and Materials). The analysis results show that overall of sedimentary characteristics indicate the type of coastal sediment on east coast of Bintan Island is slightly gravelly sand.
KARAKTERISTIK SEDIMEN PANTAI TIMUR PULAU BINTAN ROVINSI KEPULAUAN RIAU Suhana, Mario Putra; Nurjaya, I Wayan; Natih, Nyoman Metta N.
Dinamika Maritim Vol 7 No 1 (2018): Dinamika Maritim, Vol. 7 No. 1, August 2018
Publisher : Pusat Penelitian Sumberdaya Pesisir dan Laut, Universitas Maritim Raja Ali Haji, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The research carried out is one part of a series of researches concerning shoreline changes of east coast of Bintan Island during 2005-2014. In this part of the study analyzed the characteristics of coastal sediments of east coast of Bintan Island which is one of the factors that compose the beach profile. Analysis of sediment samples follows standard procedures of ASTM (American Society for Testing and Materials). The analysis results show that overall of sedimentary characteristics indicate the type of coastal sediment on east coast of Bintan Island is slightly gravelly sand.
KARAKTERISTIK GELOMBANG LAUT PANTAI TIMUR PULAU BINTAN PROVINSI KEPULAUAN RIAU TAHUN 2005-2014 Suhana, Mario Putra; Nurjaya, I Wayan; Natih, Nyoman Metta
Dinamika Maritim Vol 6 No 2 (2018): Dinamika Maritim, Vol. 6 No. 2, February 2018
Publisher : Pusat Penelitian Sumberdaya Pesisir dan Laut, Universitas Maritim Raja Ali Haji, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Salah satu faktor penting yang sangat mempengaruhi proses dinamika pantai adalah gelombang laut. Arus menyusur pantai (long-shore current) merupakan salah satu proses oseanografi fisik yang timbul akibat hempasan gelombang laut ketika menghantam pantai. Selain itu, proses sedimentasi juga merupakan salah satu proses oseanografi fisik yang disebabkan oleh gelombang laut. Melihat begitu besarnya peranan dan pengaruh gelombang laut terhadap segala dinamika yang terjadi di pantai, dirasa perlu untuk dilakukan sebuah kajian mengenai karakteristik gelombang laut di suatu perairan. Untuk menjawab tujuan penelitian ini, metode yang digunakan adalah menggunakan metode peramalan menggunakan data arah dan kecepatan angin. Data arah dan kecepatan angin yang digunakan merupakan data hasil publikasi BMKG Kota Tanjungpinang tahun 2005-2014. Selama tahun 2005-2014 perairan pantai timur Pulau Bintan dipengaruhi oleh angin yang bertiup dari arah utara dan selatan dengan frekuensi kejadian 22.48 % dan 20.97 %. Kecepatan angin yang bertiup dari arah utara berkisar antara 5.70-8.80 m/s sedangkan kecepatan angin yang bertiup dari arah selatan berkisar antara 3.60-5.70 m/s. Selain dari arah utara dan selatan, angin yang bertiup dari arah tenggara juga memiliki frekuensi kejadian yang cukup tinggi yaitu 18.85 % dengan kecepatan angin dominan berkisar antara 3.60-5.70 m/s. Tinggi gelombang laut harian yang terbentuk di perairan pantai timur Pulau Bintan yang disebabkan oleh angin selama tahun 2005-2014 berkisar antara 0.10-4.55 m dengan tinggi gelombang laut dominan berkisar antara 0.10-0.50 m, sedangkan periode gelombang laut berkisar antara 1.10-11.23 s. Tinggi gelombang laut maksimum yang terbentuk di perairan pantai timur Pulau Bintan umumnya terjadi pada puncak musim utara (Desember-Februari) dan musim selatan (Juni-Agustus) hal ini disebabkan oleh kecepatan angin yang bertiup di perairan pantai timur Pulau Bintan selama musim barat dan musim timur lebih tinggi dibandingkan dengan musim lainnya.
ANALISIS KERENTANAN PANTAI TIMUR PULAU BINTAN, PROVINSI KEPULAUAN RIAU MENGGUNAKAN DIGITAL SHORELINE ANALYSIS SYSTEM DAN METODE COASTAL VULNERABILITY INDEX Mario Putra Suhana; I Wayan Nurjaya; Nyoman Metta Natih
Jurnal Teknologi Perikanan dan Kelautan Vol 7 No 1 (2016): MEI 2016
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (13527.32 KB) | DOI: 10.24319/jtpk.7.21-38

Abstract

Coastal vulnerability is a condition where there is an increased processes of damage in the coastal areas caused by a variety of factors such as human activity and natural factors such as impact of sea level rise, sea waves and longshore current which cause abrasion and sedimentation processes which is once indicator of pressure on coastal areas even though not always interpreted as the degradation of coastal areas. Coastal vulnerability analysis is very important to be done, by doing a study of the coastal areas condition in particular the study of the vulnerability of a coastal areas will ease in highlighted any sections of a coastal areas which judged having high level of vulnerability and what are the factors that result in the vulnerability of the coastal areas. The research of coastal vulnerability of east coast of Bintan Island was conducted in September-October 2015 with observing physical and oceanographic variables consisting of coastal geomorphology, beach slope, shoreline changes and annual average of sea wave height and tidal range. Coastal vulnerability analysis using coastal vulnerability index (CVI) method by giving a score to each of the variables used in accordance with the categories set by United States Geological Survey (USGS). The results of coastal vulnerability analysis showed coastal geomorphology and beach slope are a variables with a high to very high degree of vulnerability with the vulnerability score of each variables is 4.75 and 5 (score scale range from 1-5). Coastal vulnerability index of east coast of Bintan Island ranged from 3.16-3.54 with an average 3.33 which showed the level of vulnerability of east coast of Bintan Island is in low category.
ANALISIS PERUBAHAN GARIS PANTAI DI PANTAI BARAT DAYA PULAU TERNATE, PROVINSI MALUKU UTARA Abdul Motalib Angkotasan; I Wayan Nurjaya; Nyoman M.N. Natih
Jurnal Teknologi Perikanan dan Kelautan Vol 3 No 2 (2012): NOVEMBER 2012
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.535 KB) | DOI: 10.24319/jtpk.3.11-22

Abstract

Research is a Shoreline Change Analisis along the South West Coast Ternate Island, North Molucas Province. This study aims to assess the shoreline changes from 2001 to 2011. The research was motivated by the reality on the Southwest Coast Ternate Island, accured abrasion and sedeimentasi to residential areas. There has been no comprehensive study on the extent of shoreline change is happening, and what are the factors that cause these changes. The purpose of this study was to analyze shoreline changes that occur in the Southwest Coast Ternaet island. Shoreline change analysis is done using two approaches that use DHI MIKE LITPACK models and digitized images using Landsat 7 ETM+. The results of image analysis used as a benchmark to validate the model output DHI MIKE LITPACK. Mixed model analysis results collated with the results of image analysis showed patterns of changes in the contour of the same coastline. Based on the analysis model, showed the highest abrasion occurs distasiun C (Sasa Coast) as far as 83.67 m and sedimentation occurred at station B as far as 45.69 m, based on the results of image analysis the highest abrasion occurred at station C of 27.14 m and sedimentation occurred at station E of 24.09 m . The amount of abrasion and sedimentation is affected by wave action that occurs and sand mining activities by the community in Southwest coast of the island of Ternate.
TINGKAT KERENTANAN PESISIR DI UTARA DAN TIMUR PULAU BINTAN PROVINSI KEPULAUAN RIAU TAHUN 2020 Mario Putra Suhana; Risandi Dwirama Putra; Leica Febby Shafitri; Muhamad Muliadi; Khairunnisa Khairunnisa; I Wayan Nurjaya; Nyoman Metta N. Natih
Jurnal Teknologi Perikanan dan Kelautan Vol 11 No 1 (2020): MEI 2020
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3000.831 KB) | DOI: 10.24319/jtpk.11.11-27

Abstract

Coastal areas are unique, dynamic, and complex because they are zones of interaction between land, oceans, and atmosphere. This makes coastal areas the most vulnerable areas on Earth. To find out how big the vulnerability is in a coastal area, a study is needed to determine the vulnerability level of coastal areas and the influencing factors. Research on the coastal vulnerability level at this location was conducted in 2016 and it was concluded that the coastal vulnerability level is in the medium category. With the development of potential utilization in the area, it is necessary to conduct similar research in 2016 to find out if there is a change in vulnerability level between 2016 and 2020. The data used consisted of coastal geomorphology, tidal, Landsat 7 ETM+ and 8 OLI, sea level rise and DEM satellite imagery. Data analysis using Coastal Vulnerability Index (CVI) method. The results showed the coastal vulnerability level at the research site was in the low-medium category, with a CVI score range of 9,93-25,86. Topography, geomorphology, intensity of shoreline changes, and coastal slope are factors that can cause the vulnerability level at the research site can be very high. However, the interconnectedness between other parameters can inhibit the high level of vulnerability, making the level of coastal vulnerability at the research site to be only in the low-medium category. There was a change in vulnerability level conditions between 2016 and 2020 the level of vulnerability at the east coast decreased to a low category.
Kajian Lahan Potensial untuk Budidaya Perikanan dari Citra Satelit di Pantai Timur Belitung Jonson Lumban-Gaol; Nyoman Metta N. Natih; Marlis Yulianto
Majalah Geografi Indonesia Vol 32, No 2 (2018): Majalah Geografi Indonesia
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3687.108 KB) | DOI: 10.22146/mgi.33420

Abstract

Pemetaan lahan yang potensial untuk budidaya perikanan dilakukan melalui pemetaan topografi dan tutupan lahan dari citra satelit serta survei lapang di perairan pantai Timur Belitung.  Peta Topografi estimasi dari citra satelit mempunyai pola yang sama dengan hasil pengukuran terestris dimana ketinggian lahan semakin meningkat mulai dari garis pantai menuju daratan. Data hasil pengukuran topografi secara terestris lebih tinggi dari data topografi estimasi dari data satelit. Tipe pasut di perairan pantai Belitung timur adalah tipe tunggal. Data pasut ini digunakan menjadi acuan untuk pengukuran topografi secara terestris. Peta tutupan lahan hasil intrepretasi dari citra satelit diklasifikasikan menjadi kelas: hutan primer, hutan sekunder, belukar, rawa/air, lahan terbuka, permukiman dan galian tambang. Berdasarkan peta topografi, peta tutupan lahan dan data pasang surut maka lahan di wilayah kajian pesisir pantai Timur Belitung potensial dikembangkan untuk budidaya perikanan seluas 9.000 ha. ABSTRACT Mapping potential land for aquaculture was done through topography, and land cover mapping derived satellite imagery and field survey in the east coast of Belitung. Topographic data derived satellite, and terrestrial measurement shows that topographic patterns increase as we move from the coastal line to inland. Topographic data from the terrestrial measurement was higher than satellite estimations. The type of tide in the east coast Belitung’s is the diurnal type. Within this research, tidal data was used as a reference terrestrial topographic measurement.   Land coverage maps from satellite images were classified into primary and secondary forests, grove forests, marsh/water lands, open land, inhabited land, and mining areas. According to topographic, land cover map, and tide pattern it can be confirmed that the eastern coastal area of Belitung has the potential to be developed into an aquaculture fishery area of 9,000 ha.
HAMBUR BALIK AKUSTIK PERMUKAAN SUBSTRAT DASAR PERAIRAN MENGGUNAKAN ECHOSONDER BIM TUNGGAL Baigo Hamuna; Lisiard Dimara; Sri Pujiyati; Nyoman Metta N Natih
Jurnal Kelautan Vol 11, No 1 (2018)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v11i1.2892

Abstract

Penelitian ini bertujuan untuk menganalisis nilai hambur balik permukaan dasar perairan berupa pasir dan lumpur. Echosounder bim tunggal Simrad EK15 frekuensi 200 kHz digunakan untuk perekaman hambur balik akustik permukaan dasar perairan. Hasil penelitian ini menggambarkan nilai rata-rata hambur balik permukaan substrat perairan pasir bervariasi antara -37.48 dB sampai -36.03 dB, dan lumpur bervariasi antara -46.98 dB sampai -45.15 dB. Hal ini juga menunjukkan bahwa substrat pasir memiliki tingkat kekerasan dan ukuran butir yang lebih besar dibandingkan jenis substrat lumpur substratSURFACE BACKSCATTERING STRENGTH OF SEABED SUBSTRATE USING SINGLE BEAM EHOSOUNDERABSTRACTThe objectives of this research are to analyze the surface backscattering strength of seabed. The single beam echosounder Simrad EK15 with 200 kHz of frequencies was used for recordings of seabed acoustic backscattering. Data collection was conducted in April 29 – Mei 2 2017 which located in the Yos Sudarso Bay, Jayapura, Papua Province. Sampling substrate was taken for ground truth data using sedimen grab. The results show that average value of surface backscattering strength of sand varied between -37.48 dB up -36.03 dB, and mud varied between -46.98 dB up -45.15 dB. It shows also that sand has a high substrate roughness, hardness, and grain size larger than the type of mud substrate. In acoustic backscattering values of sand were greater than mud.Keyword: Surface scattering, Sand, Mud, Single beam echosounder,
Co-Authors . Salnuddin Abdul Motalib Angkotasan Agus S. Atmadipoera Amir Yarkhasy Yuliardi Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Bisman Nababan Dedi Sugianto Dietriech Geoffrey Bengen Gentio Harsono I Wayan Nurjaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Jonson Lumban Gaol Kemal Taj Kentaro Ando Khairunnisa Khairunnisa Leica Febby Shafitri Lisiard Dimara Mario Putra Suhana Mario Putra Suhana Mario Putra Suhana Marlis Yulianto Muhamad Gilang Arindra Putra Muhamad Muliadi NEVIATY PUTRI ZAMANI Putra, Risandi D Ratuluhain, Eva Susan Rika Anggraini Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin, Salnuddin Septy Heltria Sri Hadianti Sri Pujiyat Sri Pujiyati Suhana, Mario Putra Suhana, Mario Putra Syawaludin Alisyahbana Harahap Wahyu W Pandoe