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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Forum Pasca Sarjana Maspari Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences POSITRON Biologi Edukasi : Jurnal Ilmiah Pendidikan Biologi Maspari Journal JAM : Jurnal Aplikasi Manajemen Al-Ahkam Jurnal Perikanan dan Kelautan Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Widyariset Jurnal Kelautan Tropis BERITA BIOLOGI Journal of Applied Geospatial Information JURNAL ENGGANO BULLETIN OF THE MARINE GEOLOGY Jurnal Pengelolaan Perikanan Tropis (Journal Of Tropical Fisheries Management) Dinamika Maritim Jurnal Kelautan Nasional Jurnal Segara Jurnal Sosial Ekonomi Kelautan dan Perikanan Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital International Journal of Remote Sensing and Earth Sciences (IJReSES) JURNAL METEOROLOGI DAN GEOFISIKA STI Policy and Management Journal SOSHUM : Jurnal Sosial dan Humaniora [Journal of Social Sciences and Humanities] Widyariset Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan
I Wayan Nurjaya
Departemen Ilmu Dan Teknologi Kelautan, FPIK, IPB University, 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.
ANALISIS TINGKAT PENCEMARAN AIR DENGAN METODE INDEKS PENCEMARAN DI TELUK YOUTEFA, JAYAPURA, PROVINSI PAPUA Manalu, Janviter; Nurjaya, I Wayan; HS, Surjono; Kholil, Kholil
BERITA BIOLOGI Vol 10, No 6 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i6.1942

Abstract

Youtefa Bay is one of the potential natural recources, is located on the western side of Jayapura City,Papua province.The waters has beenutilized for fishery, transportation and ecotourisme.Youtefa Bay surroundings are settlements where the most of residents are fishermen and farmers.The aim of this study is to determine the pollution level of the Youtefa Bay,approached by pollution index method.The results showed that the water condition of Youtefa Bay was slightly to moderately polluted.Due to pollution, it is therefore very importance to periodically monitor the water quality of the Youtefa Bay to maintain its sustainability.
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.
Pemodelan Pola Arus di Perairan Pesisir Banyuasin, Sumatera Selatan Surbakti, Heron; Purba, Mulia; Nurjaya, I Wayan
Maspari Journal : Marine Science Research Vol 3, No 2 (2011): Edisi Juli
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.838 KB) | DOI: 10.36706/maspari.v3i2.1309

Abstract

A two-dimensional model to investigate the pattern of current in estuary of Banyuasin has been developed. The properties of tide, wind, and current were measured to understand the dynamics of estuarine environment.  Based on the information, the model of current simulation were performed.  The simulation of model shows that offshore flow during flood tide and inland flow during ebb tide.  Maximum current speed was recorded during mean-sea-level towards high tide of 0.8716 m s-1, while the minimum was 0.0661 m s-1 observed during ebb tide. The difference current speed between model and recorded is 0.04 m s-1.   Keywords  : Modeling, Current, Tidal, Banyuasin.   ABSTRAK Model dua dimensi dibangun untuk melihat pola arus di perairan pesisir Banyuasin.  Karakteristik pasang surut, angin dan arus diukur untuk memahami dinamika lingkungan estuari.  Berdasarkan karakteristik parameter tersebut, model dan simulasi pola arus dibangun.  Berdasarkan hasil simulasi diperoleh gambaran bahwa pola arus menuju laut saat periode pasang dan menuju daratan saat periode surut.  Kecepatan arus maksimum diperoleh saat mean sea level menuju pasang tertinggi dengan kecepatan 0.8716  m s-1, dan kecepatan arus minimum diperoleh saat kondisi surut terendah sebesar 0.0661 m s-1.  Perbedaan kecepatan arus hasil model dengan hasil pengukuran adalah sebesar 0.04 m s-1.   Kata Kunci  : Pemodelan, Arus, Pasang Surut, Banyuasin
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.
The Existing Condition of Mangrove Region of Avicenia marina, Its: Distribution and Functional Transformation Ahmad Herison; Fredinan Yulianda; Cecep Kusmana; I Wayan Nurjaya; Luky Adrianto
Jurnal Manajemen Hutan Tropika Vol. 20 No. 1 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Mangrove ecosystem existence is important for environment and other organisms because of its ecological and economical values, so that management and preservation of mangrove ecosystem are needed. The purpose of this research was to determine the existing condition of mangrove, both its distribution and its functional transformation in Indah Kapuk Coastal Area. Avicennia marina  becomes important as wave attenuation,  a form of abrasion antidote. Transect-Square and Spot-Check methods were used to determine the existing condition of A.marina mangrove forests. Autocad program, coordinate converter, Google Earth, Google Map, and Arc View were applied in process of making mangrove distribution map. In western of research location exactly at Station 1 and Station 2, the density value of mangrove was 450 and 825 tree ha-1, respectively with  sparse category because they were contaminated by waste and litter. In eastern of research location namely Station 3, Station 4, and Station 5 the mangroves grow well with density value of 650 (sparse), 1,500 (very dense), and 1,200 tree ha-1 (fair), respectively, eventhough the contamination still happened. The mangrove forests around the stations do not function as wave attenuation because there were many waterfront constructions which have replaced the function of mangrove forests to damp the wave. In short, it can be stated that the mangrove's function has changed in a case of wave attenuation. The function of mangrove forests is not determined by mangrove forest density but it is determined by mangrove's free position.
Pemetaan Jasa Ekosistem Mangrove pada Wilayah Rehabilitasi di Pesisir Sayung, Kabupaten Demak Setyo Handayani; Luky Adrianto; Dietriech Geoffrey Bengen; I Wayan Nurjaya; Yusli Wardiatno
Jurnal Ilmu Pertanian Indonesia Vol. 25 No. 4 (2020): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.25.4.574

Abstract

The mangrove ecosystems on the coast of Sayung Sub-District provide huge benefits to the community. However, this region experienced a very severe coastal erosion during the last few decades. Also, information about mangrove ecosystem services is still very limited in this region. The purpose of this study, therefore, was to map the balance of mangrove ecosystem services on the coast of Sayung Sub-District, Demak District. Data were collected from three coastal villages, namely Bedono, Timbulsloko, and Surodadi, through in-depth interviews, questionnaires, and field observations. The data analysis was carried out using the Burkhard model approach, which involved an ecosystem service matrix, made up of a matrix of capacity, demand, and availability. The results showed that in all components of provisioning service, there was a surplus of availability. In regulating services, there were low surpluses in the components of carbon sequestration and water bioremediation services, while low deficits were found in the service components of reduce wave and current damage, and protecting from sea water intrusion. Then, in cultural services, the two components, shelter for rest area and recreation, experienced a surplus of availability. Mangrove rehabilitation needs to be continued to increase mangrove cover, given the availability of regulating services on components related to erosion prevention in the balace sheet tends to be deficit. Keywords: Burkhard Model, ecosystem services, mangrove ecosystem, Sayung coastal
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.
Co-Authors . Salnuddin . Sukenda Abdul Motalib Angkotasan Abdul Motalib Angkotasan Adi Purwandana Adibrata, Sudirman Adil Mahfudz Firdaus Adil Mahfudz Firdaus Agus Atmadipoera Agus Sholeh Atmadipoera Ahmad Herison Akmala Dwi Nugraha Alan Frendy Koropitan Amir Yarkhasy Yuliardi Andhi Setyonugroho Andri Purwandani Ari Purbayanto Asep Sandra Budiman Asep Sandra Budiman Baharuddin Baharuddin Bambang Kanti Laras Damar, Ario Darmiati Dedi Sugianto Dietrich G Bengen Dietriech G. Bengen Dietriech Geoffrey Bengen Eddi Supriyono Eddy Supriyono Edi Kusmanto Enang Harris Surawidjaja Esty Kurniawati Esty Kurniawati Ety Parwati Ety Parwati Ety Parwati fadli syamsudin Fani Safitri Franto Novico Fredinan Yulianda Harpasis S Sanusi Harpasis S Sanusi Harpasis s. Sanusi Hefni Effendi Heron Surbakti Heron Surbakti Hidayat Pawitan Holyness Nurdin Singadimedja HS, Surjono I Gusti Bagus Wiksuana I Ketut Ardiasa I Nyoman Kanca I Putu Budiarta Ida Bagus Made Baskara Andika IG Wayan Adiwilaga Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Irzal Effendi Ismudi Muchsin Ismudi Muchsin Janviter Manalu John I Pariwono Joko Purwanto Kadarwan Soewardi Kadarwan Soewardi Kadarwan Soewardi Kasman Kasman Khairunnisa Khairunnisa Kholil Kholil Kholil Kholil La Ode Nurman Mbay Leica Febby Shafitri Luky Adrianto Luky Adrianto M. Zairin Junior Mahdi Kartasasmita Mahdi Kartasasmita Mahdi Kartasasmita Manalu, Janviter Marimin . Mario Putra Suhana Mario Putra Suhana Mario Putra Suhana Mennofatria Boer Muhamad Muliadi MUHAMMAD AGUS SUPRAYUDI Muhammad Ishak Jumarang Muhammad Marzuki Mulia Purba Mulia Purba Mulia Purba Mursalin Mursalin Najamuddin N Nandi Abdul Aziz Neviaty P Zamani Novit Rikardi Nur Asia Umar Nur Audina Nyoman M N Natih Nyoman M.N Natih Pramudyo Dipo Putra, Risandi D Ratuluhain, Eva Susan Richardus F Kaswadji Richardus F. Kaswadji Rita Rafni Sakka Sakka Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin Salnuddin, Salnuddin Setyo Handayani Setyo Handayani Sigid Hariyadi Soma Somantri Sugeng Budiharso Sugeng Budiharsono Suhana, Mario Putra Suhana, Mario Putra Surjono HS Syamsul Bahri Agus, Syamsul Bahri Tri Hartanto Tri Prartono Tridoyo Kusumastanto Try Al Tanto Try Al Tanto Vincentius P. Siregar Vincentius P. Siregar Wahyu W Pandoe Widodo S. Pranowo Yogi Cahyo Ginanjar Yonvitner - Yusli Wardiatno