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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis SOCA: Jurnal Sosial Ekonomi Pertanian METAMORFOSA Journal of Biological Sciences Journal of Marine and Aquatic Sciences E-Journal of Tourism Pastura; Journal Of Tropical Forage Science Bumi Lestari Ecotrophic, Journal of Environmental Science Jurnal Kelautan : Indonesian Journal of Marine Science and Technology JURNAL PIJAR REKAYASA Jurnal Kelautan Tropis Jurnal Geografi Journal of Marine Research and Technology Forest and Society Jurnal Kelautan Nasional International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal Sains Riset INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES Jurnal Ilmiah Sains Jurnal Manusia dan Lingkungan The International Journal of Remote Sensing and Earth Sciences (IJReSES)

Abd. Rahman As-syakur

Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Udayana, Bukit Jimbaran, Bali 80361, Indonesia

Author-ID : 234586

Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Library & Information Science Mathematics Physics Social Sciences Other

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EVALUASI ZONA AGROKLIMAT KLASIFIKASI SCHIMIDT-FERGUSON DI PULAU LOMBOK DENGAN APLIKASI SISTEM INFORMASI GEOGRAFI (SIG) As-syakur, Abd Rahman
Jurnal PIJAR Vol 3, No 1 (2008)
Publisher : Jurnal PIJAR

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

AbstrakTulisan ini menguraikan tentang evaluasi data agroklimat klasifikasi Schmid-Ferguson di Pulau Lombok berdasarkan data-data curah hujan terbaru. Metode yang digunakan adalah interpolasi atau ektrapolasi dengan aplikasi SIG. Hasil penelitian menunjukan bahwa telah terjadi peningkatan luas untuk zona-zona dengan tipe C sebesar 109.432% dan tipe D sebesar 51.571% sedangkan penurunan luas terjadi pada zona-zona dengan tipe E sebesar 0.908% dan tipe F sebesar 36.194%. Tipe iklim E merupakan tipe iklim dominan di Pulau lombok dengan presentase masing 47.97 dari luas Pulau Lombok. Tipe D, E dan C masing-masing mempunyai persentase 29.11, 22.12 dan 5.81. Aplikasi SIG dapat mepermudah dalam penginterpolasian titik, Akan tetapi kelemahan peta isohyet yang dihasilkan oleh SIG tidak memperhitungkan faktor-faktor lain penyebab hujan selain faktor yang dimasukkan sebagai input data.Kata Kunci: hujan, klasifikasii iklim Schimdt-Ferguson, Sistem Informasi Geografi

REGENERASI ALAMI SEMAIAN MANGROVE DI KAWASAN TELUK BENOA, BALI Istri Pradnyandari Dewi, I Gusti Ayu; Elok Faiqoh; Abd. Rahman As-syakur; I Wayan Eka Dharmawan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 13 No. 3 (2021): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v13i3.36364

Ekosistem mangrove memiliki peran penting dalam kawasan pesisir baik secara langsung maupun tidak langsung. Kelestarian ekosistem mangrove dapat digambarkan dari kelimpahan semaian. Penelitian tentang status regenerasi alami mangrove telah dilakukan di kawasan Teluk Benoa, Bali. Tujuan penelitian ini adalah untuk menganalisis tingkat regenerasi mangrove berdasarkan kelimpahan semai, serta hubungannya dengan karakter ekologi mangrove dalam kawasan. Area penelitian dibagi menjadi tiga zona dengan total 30 titik pengambilan sampel dengan distribusi yang proporsional. Pada setiap titik dilakukan pengambilan data struktur komunitas semai, tegakan dewasa (pohon, pancang) dan parameter lingkungan. Hasil penelitian menunjukkan status regenerasi mangrove di kawasan ini termasuk dalam kategori cukup baik, berdasarkan perbandingan dari kelimpahan semaian dengan tegakan kategori pancang dan pohon. Kerapatan semai tertinggi ditemukan pada zona 2 yang didominasi oleh Rhizophora mucronata dengan rata-rata sebesar 4800 ± 5610 tegakan/ha yang berbeda signifikan dengan dua zona lainnya. Variasi kondisi struktur komunitas mangrove pada tiga zona tidak memberikan pengaruh yang signifikan terhadap kelimpahan semai. Sementara itu, dua faktor lingkungan yaitu pH dan potensial redoks memiliki korelasi yang positif dan signifikan memengaruhi jumlah sebaran semai mangrove di dalam kawasan. Hasil penelitian mengindikasikan bahwa tingkat regenerasi mangrove masih mampu bertahan dalam tekanan habitat yang cukup tinggi.

STUDI KONDISI HIDROLOGIS SEBAGAI LOKASI PENEMPATAN TERUMBU BUATAN DI PERAIRAN TANJUNG BENOA BALI Abd. Rahman As-Syakur; Dwi Budi Wiyanto
Jurnal Kelautan Vol 9, No 1: April (2016)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v9i1.1293

STUDY OF HIDROLOGICAL CONDITION FOR ARTIFICIAL REEF LOCATION IN TANJUNG BENOA BALIOne of the tourism which was demanded by the tourists are underwater activity, namely scuba diving and seawalker, where the main target underwater tourism activities is the beauty of the underwater in the form of coral and reef fish. The purpose of this study is to determine the hydrological condition of artificial reefs in Tanjung Benoa, Bali. The method used in determining the location is a purposive sampling method. Sampling was carried out in three (3) stations and taken randomly in the study site (Tanjung Benoa). Measurement of hydrological conditions include the temperature, salinity, water clarity, current, depth, turbidity, TSS, DO, Nitrate, Phosphate. Hydrological conditions measurements carried out in situ (direct) and in laboratory. Data was analyzed by descriptive qualitative by comparing the quality of water based on the Ministry of the Environment Decree No. 51 of 2004 on Sea Water Quality Standard. Based on the results of hydrological conditions measurements, conditions of environmental parameters are still within the tolerance limit for the growth of marine biota. The basic conditions of the waters is not suitable for the placement of artificial reefs, this is because the substrate is muddy sand, where the basic conditions of these waters will submerge artificial reef into the sand.Keywords: artificial reef, hidrological condition, Tanjung BenoaABSTRAKSalah satu wisata yang sangat diminati oleh para wisatawan adalah wisata bawah air, yaitu scuba diving dan seawalker, dimana dalam kegiatan wisata bawah air yang menjadi target utama yaitu keindahan bawah air berupa terumbu karang dan ikan karang. Tujuan penelitian ini yaitu untuk mengetahui kondisi hidrologis terumbu karang buatan di Tanjung Benoa-Bali. Metode yang digunakan dalam penentuan lokasi sampling adalah metode sampling pertimbangan, yaitu metode pengambilan lokasi dan sampel didasarkan atas adanya tujuan tertentu dengan berbagai pertimbangan. Pengambilan sampel dilakukan di 3 (tiga) stasiun yang diambil secara acak di lokasi penelitian (Tanjung Benoa). Pengukuran kondisi hidrologis meliputi suhu, salinitas, kecerahan, kecepatan arus, kedalaman, kekeruhan, TSS, DO, Nitrat, Fosfat. Pengukuran kondisi hidrologis dilakukan secara insitu (langsung) dan pengujian skala laboratorium. Data di analisis secara diskriptif kualitatif dengan membandingkan kualitas air berdasarkan Keputusan Menteri Negara Lingkungan Hidup Nomor 51 Tahun 2004 Tentang Baku Mutu Air Laut. Berdasarkan hasil pengukuran kondisi hidrologis, kondisi parameter lingkungan masih dalam batas toleransi untuk pertumbuhan biota laut. Kondisi dasar perairan sangat tidak cocok untuk penempatan terumbu karang buatan (artificial reef), hal ini dikarenakan substrat dasar perairan yaitu pasir berlumpur, dimana kondisi dasar perairan tersebut akan menenggelamkan terumbu karang buatan (artificial reef) kedalam pasir. Kata Kunci: kondisi hidrologis, terumbu buatan, Tanjung Benoa

Komposisi Floristik Vegetasi di Kawasan Hilir Sungai Unda, Kabupaten Klungkung, Bali I Made Sara Wijana; I Made Saka Wijaya; Abd. Rahman As-syakur; Gede Surya Indrawan; Putu Angga Wiradana; Komang Kartika Indi Swari; Dewa Ayu Intan Tirta Sari
Metamorfosa: Journal of Biological Sciences Vol 9 No 1 (2022)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2022.v09.i01.p03

The downstream area of Unda River Watershed located in Klungkung Regency has experienced succession due to the eruption of Mount Agung in 1963. The ecosystem in the downstream area of the Unda River also experienced anthropogenic succession due to human activities which affected the plant species that composing the vegetation. This study aims to observe the floristic composition of vegetation in the downstream area of the Unda River. The research was conducted by exploration method in three types of ecosystems: lowland forest, marshes, and beaches. The results show the floristic composition in the downstream of Unda River composed by 163 plant species, classified in 48 families and 128 genera. The major growth form is small herb (47 species), grass (35 species), and tree (31 species). Fabaceae is the plant family with the most abundant species, followed by Poaceae and Cyperaceae. Based on the research zones, the lowland forest has the highest number of plant species (120 species), while the beach zone has the lowest (82 species). The ecosystem stability in the downstream area of Unda River can be disturbed by the existence of invasive species, such as Eichhornia crassipes, Chromolaena odorata, Lantana camara, Ipomoea carnea, Vachellia farnesiana, and Typha angustifolia.

Struktur Komunitas Uca Sp Di Kawasan Teluk Benoa Pada Karakteristik Substrat Yang Berbeda Ni Wayan Loviasari; Abd. Rahman As-syakur; Elok Faiqoh; I Gusti Ngurah Putra Dirgayusa; Dwi Budi Wiyanto
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The mangrove ecosystem is home to a variety of fauna, ranging from water animals to primates, as a breeding ground for a variety of aquatic animals such as fish, crustaceans, crabs and mollusks, as well as a place to feed a number of wildlife such as reptiles and mammals. Uca sp is one of the fauna that utilizes and helps mangrove in its ecological balance. This research was conducted on 3 mangrove areas with the purpose of knowing the types and structure of Uca sp community on different substrate characteristics, where in Mertasari mangrove have the type of sandy substrate, Muara Waduk Nusa Dua Denpasar has kind of sandy loam substrate and Tanjung Benoa has kind sandy substrate. The sampling time was conducted in December 2016 when the lowest tide of the month. Determination of stations taken at each research location (station) using purposive sampling method. From the results of the study found Uca sp as many as 5 types, namely Uca cryptica, Uca dussumieri, Uca rosea, Uca cryptica and Uca crassipes. The highest density of Uca sp that is at station 2 located in Muara Waduk Nusa Dua Denpasar is 52,75 ind/m2 and lowest at station 3 in Tanjung Benoa get 32,25 ind /m2. The index values ??of the diversity of the three research stations are categorized into low diversity. In all three research stations categorized into uniformity index with depressed community or low uniformity. Based on the calculation on the three stations have a high dominance index.

Aplikasi Sistem Informasi Geografis (SIG) dan Penginderaan Jauh untuk Pemetaan Daerah Penangkapan Ikan Tuna Mata Besar di Selatan Jawa dan Bali Kadek Bagus Padmaningrat; I Wayan Gede Astawa Karang; Abd. Rahman As-syakur
Journal of Marine and Aquatic Sciences Vol 3 No 1 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Bigeye tuna is the dominant species of tuna caught in the territorial waters of the Indian Ocean and a productive tropical species which accounts for more than 10% of the total catch in the whole world. Distribution of bigeye tuna can be predicted through optimum temperature associated with the presence of bigeye tuna and distribution of chlorophyll-a is associated with the presence of small pelagic fish. The distribution of sea surface temperature and chlorophyll-a can be detected through remote sensing systems. The purpose of this study was to determine the relationship between sea surface temperature and chlorophyll-a by the number of bigeye tuna catches in the waters south of Java and Bali, and mapped the area catching bigeye tuna in the waters south of Java and Bali. The method used is a second order polynomial regression analysis to determine the effect of sea surface temperature and chlorophyll-a by the number of bigeye tuna catches as well as correlation analysis to determine the relationship of sea surface temperature and chlorophyll-a by the number of bigeye tuna catches. Sea surface temperature and chlorophyll-a is related to the number of bigeye tuna catches. The results of the analysis showed a strong relationship between sea surface temperature and chlorophyll-a by the number of bigeye tuna catches. Bigeye tuna fishing grounds in the waters south of Java and Bali are in a position 12oS-15oS and 106°E-118°E.

Indeks Kesesuaian Wisata di Pantai Pasir Putih, Kabupaten Karangasem I Komang Subandi; I Gusti Ngurah Putra Dirgayusa; Abd. Rahman As-syakur
Journal of Marine and Aquatic Sciences Vol 4 No 1 (2018)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The study of tourist suitability index (IKW) was conducted in Pasir Putih Beach, Bugbug Village, Karangasem Sub-district, Karangasem district. Data was collected for 1 (one) month in January 2017 at 4 observation stations. Sources of primary data are obtained from observations and interviews with tourists and secondary data obtained from literature that related to agencies in Pasir Putih beach. Purposive sampling is used as a method for data collection. The data collected are incluted: coastal type, beach width, water depth, coastal slope, water base material, water flow velocity, waters brightness, coastal closure, harmful biota, and freshwater availability. The analysis of IKW for recreation beach category refers to the matrix of tourism and tourism conformity classification. The limiting factor of IKW in Pasir Putih Beach is coastal land cover and wide beach. IKW value for tourism activities in the beach recreation category at Pasir Putih Beach at station I of 94.23%, II of 96.79%, III by 85.89%, and VI of 81.41%. All stations are categorized as suitable (SS) for coastal tourism activities. Zone utilization coastal tourist area for swimming and sunbathing done at station I and II. Zone utilization area for recreation of a walk are station I, II, III, and IV. Station IV at south area including zone of sacred area.

Opportunities for the application of Red-edge reflectance-based indices in coastal vegetation and agro-ecological studies Laily Mukaromah; Abd. Rahman As-syakur; Erwin Prastowo
Journal of Marine and Aquatic Sciences Vol 5 No 2 (2019)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Remote sensing is an advanced tool that provides electromagnetic information about the Earth's surface and atmosphere. In ecological studies, the applications of vegetation indices (VIs) derived from remote sensing data have continued to increase, especially in capturing and monitoring vegetation properties and environmental changes. This study reviews the application of VIs with special focus on red-edge based indices in the evaluating coastal landscapes and other conservation studies. The spectral characteristics of vegetation is briefly reviewed in order to exploit the potential information of the reflectance spectrum, and the possible key role of vegetation indices in future research of coastal vegetation as well as resilience indicator in the ever-changing landscapes.

Hubungan Hasil Tangkapan Ikan Tuna Selama Februari-Maret 2016 dengan Konsentrasi Klorofil-a dan SPL dari Data Penginderaan Jauh Di Perairan Selatan Jawa – Bali I Made Ekayana; I Wayan Gede Astawa Karang; Abd. Rahman As-syakur; Irwan Jatmiko; Dian Novianto
Journal of Marine and Aquatic Sciences Vol 3 No 1 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Indonesia waters are fertile waters marked by the existence of Regional Fisheries Management (WPP), one of them is WPP 573 in Southern Java. One of the biggest fish catch sectors in Indonesia is tuna fisheries. Distribution of tuna in Indonesia waters affected by Sea Surface Temperature (SST) and chlorophyll-a. The aims of this study is to analyze the distribution of chlorophyll-a and SST in the water of South Java - Bali using AQUA MODIS satellite through data in-situ, to know the accuracy of SST Ground Truth and SST imagery satellite and to find the relationship between chlorophyll-a and SST with catches tuna in the water of South Java - Bali. SST data and chlorophyll-a were obtained through remote sensing technology and the catches of tuna was obtained by in-situ. The methods used were polynomial regression analysis, regression linear analysis and correlation analysis to determine the relationship of these parameters, found strong correlation between SST Ground Truth and SST imagery satellite R= 0,61. The distribution of oceanographic parameters (SST and chlorophyll-a) in the water of South Java - Bali seemed volatile and these condition also seemed less affected catches of tuna. Found low inverse correlation SST with catches of tuna amounted to R = -0.34 and low correlation with the chlorophyll-a with catches of tuna amounted to R = 0.28.

Analisis Perubahan Luasan dan Kerapatan Tajuk Mangrove di Kecamatan Borong Kabupaten Manggarai Timur Mu'tasim Billah; I Wayan Arthana; I Wayan Restu; Abd. Rahman As-syakur
Journal of Marine and Aquatic Sciences Vol 6 No 1 (2020)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2020.v06.i01.p06

The ecosystem of mangrove is one of unique and distinctive forms of forest ecosystem, has high economic and ecological value, but has highly vulnerable to damage if it’s unwise in management. The information about area of mangrove forest in East Manggarai District was too limited. Therefore it needs an analysis of area and density changes of mangrove headings in East Manggarai District. The objective of this research is analyzing area and density changes of mangrove headings in Borong Subdistrict of East Manggarai District. The techniques of this research past supervised classification, NDVI analysis and field observation. The data analysis are correlation and accuracy test. Based on the image analysis, the ecosystem area of mangrove in Borong Subdistrict of East Manggarai District from 2007 till 2017 decreased by 20,61 hectares from 90.99 to 70.38 hectares. Declining also occurred in density of mangrove headings level, where density level was reduces to medium or rare. Result of the accuracy test obtained overall accuracy value was 82%. The density of mangrove headings on rarely classification has NDVI value of less than 0.3272, the medium has 0.3272 to 0.413 and the dense has more than 0.413. Based on the correlation analysis the value of density and NDVI form a linear regression model y = 233.2x – 26.304, with a very strong correlation (r) is 0.93. The decreasing area and density of mangrove caused by human activity that are harmful the existence of mangrove forest.

Co-Authors A. A. Md. Ananda Putra Suardana A. A. Md. Ananda Putra Suardana A. Besse Rimba Abd. Rahman Adi Ariyanto Wibisono Agung Dwi Wijaya Agung Dwi Wijaya Agus Sukma Yogiswara Alfandy Putra Anugrah Anak Agung Ketut Darmadi Andiani, Anak Agung Eka Azhar Muhammad Hanisa Aziz, Kholifatul Azura Ulfa Azura Ulfa Azura Ulfa, Azura Chonnaniyah Chonnaniyah Dewa Ayu Intan Tirta Sari Dewi, I Gusti Ayu Istri Pradnyandari Dian Novianto Dwi Budi Wiyanto Egmont congdenjit Elis Molidena Elok Faiqoh Erwin Prastowo Ferdinan, David Firman Fusanori Miura Gathot Winarso Gathot Winarso Gathot Winarso, Gathot Gayatri, Ni Nyoman Puspa Gde Oka Widiyavedanta Gede Dicky Pradipta Wedayana Gede Surya Indrawan Gede Surya Indrawan Herlambang Aulia Rachman Herlambang Aulia Rachman I Dewa Gede Agung Pandawana I Gede Adi Swastana I Gusti Agung Bagus Wisesa Sastra I GUSTI ALIT GUNADI I Gusti Ayu Kunti Sri Panca Dewi I Gusti Bagus Sila Dharma I Gusti Ngurah Putra Dirgayusa I Kadek Dedy Antara Putra I Komang Subandi I Made Ekayana I Made Saka Wijaya I Made Sara Wijana I Made Sara Wijana I Made Sara Wijana I MADE SUDARMA I Made Sukewijaya I Made Yunarta I Nyoman Dibia I Nyoman Sunarta I Nyoman Wardi I Putu Dedy Pratama I PUTU GUSTAVE SURYANTARA PARIARTHA I Putu Ranu Fajar Maharta I Putu Sugiana I W.S. Adnyana I Wayan Artadana I Wayan Arthana I Wayan Eka Dharmawan I Wayan Gede Astawa Karang I Wayan Kasa I Wayan Nuarsa I Wayan Nuarsa I Wayan Nuarsa I Wayan Restu I Wayan Rusna I Wayan Sandi Adnyana I Wayan Sandi Adnyana I Wayan Suarna I.W. Diara I.W. Rusna Ida Ayu Alit Laksmiwati Indriyanti, Komang Dessica Irwan Jatmiko Istri Pradnyandari Dewi, I Gusti Ayu Joseph Maina Kadek Bagus Padmaningrat Kholifatul Aziz Kholifatul Aziz Komang Kartika Indi Swari Laily Mukaromah M. Rheza Rizki Syahputra M. Rheza Rizki Syahputra M. Sudiana Mahendra Mu'tasim Billah Muhammad Rizki Nandika Muhammad Rizki Nandika Nandika, Muhammad Rizki Nanin Anggraini Nanin Anggraini Nanin Anggraini, Nanin Ni Kadek Apriantari Ni Made Ernawati, Ni Made Ni Wayan Ekayanti Ni Wayan Loviasari Novanda, I Gede Agus Parwayoni, Ni Made Susun Prasetio, Wiji Pratama, I Putu Dedy Premananda, I Wayan Hari Premananda, Made Goura Primajana, Dewa Jati Putu Angga Wiradana Putu Angga Wiradana Putu Gede Ardhana Rahardja, Viryanando Evan Ratih Dewanti Ratih Dewanti Ratih Dewanti -Hariyadi Sagung Putri Chandra Astiti Sastra Ardi Agamis Ilhami Stuart Campbell Suardana, A. A. Md. Ananda Putra T. Osawa Takahiro Osawa Takahiro Osawa Takahiro Osawa Takahiro Osawa Takahiro Osawa Takahiro Osawa Takahiro Osawa Tasuku Tanaka Tiara Permata Sari Viryanando Evan Rahardja Wibisono, Adi Ariyanto Widiastuti Karim Wijana, Made Sara Wijaya, Agung Dwi Wijaya, I Made Saka Wiji Prasetio Wiji Prasetio Wirayuhanto, Harish Yulianto Suteja Zainul Hidayah Zulfa, Rozifatul

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