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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences Media Statistika Jurnal Natur Indonesia Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Matematika & Sains Jurnal Biodjati Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Data Analysis Marine Kreatif Parameter: Journal of Statistics Jurnal Siger Matematika Prosiding Seminar Nasional Universitas Serambi Mekkah Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan kawanad Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Kelautan dan Perikanan Indonesia Journal of Aceh Aquatic Sciences

Ichsan Setiawan

Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Syiah Kuala, Banda Aceh, Aceh-Indonesia

Author-ID : 376957

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Veterinary Other

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Simulation of Baroclinic Current Pattern in Eastern Indonesian Region using Three-Dimensional Model Syamsul Rizal; Ichsan Setiawan; Muhammad Muhammad; Taufiq Iskandar; Mulyadi Abdul Wahid
Jurnal Matematika & Sains Vol 14, No 4 (2009)
Publisher : Institut Teknologi Bandung

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

In this investigation, the currents in Eastern Indonesian region are simulated by using the equations of motion (Navier-Stokes Equation). These equations are solved by the Hamburg Shelf Ocean Model (HAMSOM). Two cases are carried out, i.e. in the condition of west monsoon (February 1994) and east monsoon (August 1994). The simulation results are discussed for surface current, currents at 100-200 m, and the bottom current. In general, the results obtained agrees well with the work of Wyrtki, 1961 and Ahmat et al., 1995, but less with the work of Gordon and McClean, 1999.

Penerapan Analisis Korelasi Kanonik pada Kajian Enso dalam Identifikasi Hubungan Fitur Iklim Miftahuddin, Miftahuddin; Andriani, Ria; Setiawan, Ichsan; Mulsandi, Adi
Jurnal Natur Indonesia Vol 15, No 1 (2013)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

There are several resulting arguments from the research done on climate variation in Indonesia stating that the observed affects are through various phenomena such as ENSO, monsoon, dipole mode event, and MJO. However, the magnitude of the effect varies for each region in Indonesia. This research aims to identify the relationship among the global climate features (GCFs) in the Nino3.4 (5°S–5°N, 120–170°W) with the local climate features (LCFs) in the Aceh regions which represented by: I(2–3°N, 95–98°E), II(3–4°N, 95–98°E), III(4–5°N, 95–98°E), and IV(5–6°N, 95–98°E) using canonical correlation analysis (CCA) in the ENSO phenomena. The analysis shows that global GCFs variations have strong correlation with LCFs variations with the correlation values, 0.893, 0.899, 0.900, and 0.901, respectively. The result show that when there is a global change in any feature of GCFs, the same change also appears in each feature of LCFs. The canonical loading shows that there are original variables which have strong correlation with the first canonical global variable (X1) with correlations 0.987, 0.969, 0.987, and 0.865,respectively, and the local wind (Y1) with correlations 0.974, 0.952, 0.979, and 0.845, respectively. All the other climate features have weak correlations with the first canonical variables. From the MANOVA, we can conclude that the climate features (wind, SST, SSTA, and SLP) affect climate changes in both study regions. Our results also reveal that LCFs are significantly affected in the Nino3.4 99.5% and in I, II, III, and IV for given correlations 99.8, 99.7, 99.6, and 99.5%, respectively.

MODELING OF SEA SURFACE TEMPERATURE BASED ON PARTIAL LEAST SQUARE - STRUCTURAL EQUATION Miftahuddin, Miftahuddin; Putri, Retno Wahyuni; Setiawan, Ichsan; Oktari, Rina Suryani
MEDIA STATISTIKA Vol 14, No 2 (2021): Media Statistika
Publisher : Department of Statistics, Faculty of Science and Mathematics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/medstat.14.2.170-182

Variability of Sea Surface Temperature (SST) is one of the climatic features that influence global and regional climate dynamics. Missing data (gaps) in the SST dataset are worth investigating since they may statistically alter the value of the SST change. The partial least square-structural equation modeling (PLS-SEM) approach is used in this work to estimate the causality relationships between exogenous and endogenous latent variables. The findings of this study, which are significant indicators that have a loading factor value > 0.7 are as follows: i) sea surface temperature (oC) as a measure of the latent variable changes in SST, ii) wind speed (m/s) and relative humidity (%) as a measure of the latent variable of weather, and iii) air temperature (oC), long-wave solar radiation (w/m2) as a measure of climate latent variables. The size of the Rsquare value is influenced by the number of gaps. The results of the boostrapping show that the latent variables of weather and climate have a significant effect on changes in SST which are indicated by the value of tstatistics > ttabel. The structural model obtained Changes in SST (Î·) = -0.330 weather + 0.793 climate + Î¶. The model shows that the weather has a negative coefficient, which means that the better the weather conditions, the lower the SST changes. Climate has a positive coefficient, which means that the better the climate, the SST changes will also increase. Rising sea surface temperatures caused by an increase in climate can lead to global warming, impacting El-Nino and La-Nina events.

STUDI PERUBAHAN GARIS PANTAI TIMUR LAUT KABUPATEN ACEH BESAR DAN PIDIE PADA TAHUN 2002 – 2014 Ridha Riani Zahara Lubis; Thaib Rizwan; Syahrul Purnawan; Maria Ulfah; Syarifah Meurah Yuni; Ichsan Setiawan
Jurnal Kelautan Vol 11, No 2 (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.v11i2.3894

Penelitian ini bertujuan untuk mengetahui perubahan garis pantai di sepanjang pantai timur laut Kabupaten Aceh Besar dan Pidie pada tahun 2002 hingga 2014 dengan interval selama dua tahun. Penelitian ini dilaksanakan pada bulan Januari – Februari 2016 dimulai dari pinggir pantai Desa Krueng Cut, Aceh Besar sampai Kecamatan Kembang Tanjong, Pidie. Metode Penelitian memanfaatkan teknologi Sistem Informasi Geografis (SIG) dan penginderaan jauh, dengan mengambil data citra satelit Landsat 7 dan Landsat 8 yang diproses menggunakan ArcGIS 10.5. Hasil penelitian ini menunjukkan bahwa perubahan garis pantai yang terjadi sangat signifikan untuk perubahan abrasi maupun sedimentasi.Kata Kunci: Garis Pantai, Abrasi, Sedimentasi, Penginderaan Jauh, Sistem Informasi Geografis (SIG), ArcGIS 10.5.ABSTRACTThis study aims to determine the shoreline changes along the northeastern coast of Aceh Besar and Pidie districts in 2002 to 2014 at intervals of two years. This research was conducted in January - February 2016 starting from coastal village of Krueng Cut, Aceh Besar until Kecamatan Kembang Tanjong, Pidie. The research method utilizes Geographic Information System (GIS) and remote sensing technology, taking Landsat 7 and Landsat 8 satellite images processed using ArcGIS 10.5. The results of this study indicate that the shoreline changes that occur are very significant for abrasion and sedimentation changes.Keywords: Coastline, Abrasion, Sedimentation, Remote Sensing, Geographic Information System (GIS), ArcGIS 10.5.

GRAIN-SIZE STATISTICAL PARAMETERS OF SANDY SEDIMENT IN KUALA GIGIENG, ACEH BESAR DISTRICT Syahrul Purnawan; Haekal A. Haridhi; Ichsan Setiawan; . Marwantim
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 7 No. 1 (2015): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Study of sediment distribution at Kuala Gigieng was to assess the information of sediment related to the occurrence of hydro-oceanographic processes. The sediment samples were collected from nine stations using coring method. Granulometric method was used to analyze the grain size distributions. The results showed different sediment distribution patterns in each area at estuary Kuala Gigieng. The outer area of estuary indicated skewed to coarse grains, while at the inner area of estuary indicated skewed to fine grains. Different sediment load transport process was suggested as the cause of differentiated sediment characters. Keywords: granulometry, grain size, sediment statistic, Kuala Gigieng

SEDIMENT DISTRIBUTION ANALYSIS IN BALOHAN BAY, SABANG Syahrul Purnawan; Tengku Putra Fajran Alamsyah; Ichsan Setiawan; . Rizwan; Maria Ulfah; Sayyid Afdhal El Rahimi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 2 (2016): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

We investigated the sediment properties and distribution in Balohan Bay, which is located in southern Weh Island, Aceh Province. The aim of this research was to clarify the sediment distribution mechanism in the Balohan Bay using a statistical approach. Samples were collected on January 2016 using coring method. Sediment grain-size distribution from 14 stations was obtained using wet sieve analysis. A large amount of fine sand and very fine sand were found in Balohan Bay, as a result of several tributaries discharged in those areas. The sediment distribution in eastern stations showed an indication as a coarser size and a poorer sorted area, as they were adjacent to the steep cliff.

Analisis Garis Pantai Ladong Aceh Besar Tahun 2011-2015 dengan Menggunakan Sistem Informasi Geografis Chasandra Faradila; Ichsan Setiawan; Edy Miswar
Journal of Marine and Aquatic Sciences Vol 3 No 1 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

The purpose of this study was to determine shoreline change along the coast of Ladong, Mesjid Raya subdistrict, Aceh Besar district, Aceh province in the 5 years period started from the year 2011, 2012, 2013, 2014 and 2015. Ground check was implemented in August 2016. This study utilized Geographic Information System technology (GIS), remote sensing and by utilizing Google Earth to capture aerial photo. The result from this research showed that each year the shoreline changes, either it was abrasion or accretion. In 2011-2012 the value of abrasion reached 1.1 ha and the value of accretion reached 0.5 ha. In 2012-2013 the value of abrasion reached 0.3 ha and the value of accretion reached 0.8 ha. In 2013-2014 the value of abrasion reached 1.2 ha and the value of accretion reached 0.2 ha. In 2014-2015 the value of abrasion reached 0.2 ha and the value of accretion reached 1.5 ha. The value of the annual abrasion average reached 0.56 ha and the value of the accretion was 0.58 ha. The largest abrasion happened in 2013-2014 which reached 1.2 ha. The total value of 5 year abrasion was 2.8 ha and the total value of accretion was recorded 2.9 ha. The process of abrasion and accretion also caused a change of the length of Ladong’s coastline every year, and the river estuary was one of the reasons that caused abrasion or accretion

Pengaruh Perbedaan Jenis Pakan dan Ransum Harian Terhadap Pertumbuhan dan Kelangsungan Hidup Kepiting Bakau (Scylla serrata) Muchlisin Z.A.; Edi Rudi; Muhammad Muhammad; Ichsan Setiawan
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 11, No 4 (2006): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Penelitian tentang perbedaan jenis pakan dan jumlah ransum harian kepiting bakau (Scylla serrata) telah dilakukan yang bertujuan untuk mencari pakan alternative dan jumlah pakan harian yang sesuai untuk budidaya kepiting bakau. Metode yang digunakan adalah eksperimen lapangan dengan dua factor perlakuan yaitu perbedaan jenis pakan (ikan rucah, usus ayam dan keong mas) dan jumlah ransom harian (10%, 15%, 20%). Kepiting dipelihara dalam keramba jaring (1m x 1m x 1m) dengan padat tebar 9 ekor/karamba dan dipelihara selama enam minggu. Hasil penelitian menunjukkan bahwa perbedaan jenis pakan dan jumlah ransom harian tidak mempengaruhi secara nyata pertumbuhan dan kelangsungan hidup kepiting bakau.Namun demikian, ikan rucah sebayak 20% memberikan hasil pertumbuhan yang lebih tinggi dibandingkan jenis pakan lainnya. Sementara itu, angka kelangsungan hidup yang tinggi diperoleh pada pemberian keong mas 10% dan 15%.Dengan demikian dapat disimpulkan bahwa pemberian keong mas and usus ayam dapat digunakan sebagai pakan alternative dalam budidaya kepiting bakau, namun demikian pemakaian ikan rucah sebagai pakanmemiliki peran penting dalam budidaya kepiting.Kata kunci : Kepiting bakau (Scylla serrata), keong mas (Pomacea canaliculata), ikan rucah dan usus ayamThe study of feed differences and feeding ration of mud crab (Scylla serrata) on the growth, and survival rate was done. The objective of the present study is to find alternative feeds and daily rations for mud crabculture. Field experimental was used in this study and two factors were evaluated namely type of feed (trash fish, chicken intestine and golden snail) and daily ration of 10%, 15% and 20%. The crabs were reared in poly ethylene cages with stocking density of 9 crabs /cage for six weeks. The result shows that the differences of feed types and daily rations were no significant affected on growth performance and survival rate of mudcrab. However, feed of trash fish 20% have resulted in a higher growth performance than other feeds and higher survival rates were found at feed of golden snail 10% and 15%. Therefore, it is concluded that goldensnail and chicken intestine are possible to be used as alternative feeds for mud crab culture. However trash fish is still play a vital role in crab culture.Key words: Mud crab (Scylla serrata), golden snail (Pomacea canaliculata), trash fish and chicken intestine.

Cross-correlation Analysis Between Sea Surface Temperature Anomalies and Several Climate Elements in The Indian Ocean Fanny Oktaviani; Miftahuddin; Ichsan Setiawan
Parameter: Journal of Statistics Vol. 1 No. 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Tadulako

Climate change can create a considerable impact in Indonesia. Aceh province is a province located on the island of Sumatra and it are located around in the Indian Ocean. Aceh Province has a considerable impact of climate change caused by the Sea Surface Temperature Anomalies (SSTA). The SSTA in the Indian Ocean is a parameter that can affect climatic conditions in Indonesia. The SSTA changes can cause an extreme climate change on earth. There are several climate elements affected by SSTA including air temperature, rainfall, wind speed, solar radiation, and relative humidity. One of the methods used to look at SSTA's relationship with some climate elements is the Cross-Correlation method. The climate data used in this study was a daily time series data. The purpose of this study is to find out SSTA's relationship with some climate elements. The results showed that using the Pearson correlation, the highest relationship was SSTA and the air temperature was 0.45. Meanwhile, the lowest relationship was SSTA and the rainfall was -0.05. Similarly, the Cross-Correlation method where the highest relationship was SSTA and the air temperature was 0.469, and the lowest close relationship was SSTA and the rainfall was -0.075.

The Diversity of Reef Fish in Ulee Kareung waters, Bireuen District Indonesia Dedi Fazriansyah Putra; Muhammad Redha Subqi; Muhammad Nasir; Syahrul Purnawan; Ichsan Setiawan; Elzein Muhammed Fahal
Jurnal Biodjati Vol 7, No 1 (2022): May
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i1.16634

Indonesia has abundant underwater natural resources, including coral reefs. Among coral reef ecosystems, reef fish make an important contribution to supporting the sustainability of underwater life. The more diverse reef fish in an ecosystem, it shows the healthier the condition of the coral reef ecosystem. The objective of the study was to investigate the diversity of the reef fish community including abundance, diversity, evenness, and dominance index in Ulee Kareung waters, Simpang Mamplam Sub-district, Bireuen District, Indonesia. We used a visual census technique (VCT)-belt transect by using a 50-meter transect and 3 times repetition at three observation stations. Each station had 2 depth categories such as shallow waters (3-5 m) and deep water (7-10 m). Results of the study found a total of 2094 individuals that consisted of 19 families and 59 species. The abundance value of reef fish ranged from 321 ind/ha - 610 ind/ha. The diversity index (H') ranged from 2.80 to 3.16. The evenness index (E) ranged from 0.79 to 0.88 and the dominance index (C) ranged from 0.06 to 0.10. Hence, it can be concluded that ulee kareung waters have a medium level of fish diversity.

Co-Authors . Marwantim . Rizwan A.A. Ketut Agung Cahyawan W Adi Mulsandi Akram Tamlicha Akram Tamlicha Alvi Rahmah Amri Adnan Ananda Pratama Sitanggang Chaliluddin Chasandra Faradila Dedi Fazriansyah Putra Edi Rudi Edy Miswar Edy Miswar Elzein Muhammed Fahal Faliqul Isbah Faliqul Isbah Fanny Oktaviani Haekal A. Haridhi Hendra Gunawan Husaini Ikramullah Ikramullah Ilham Zulfahmi Imelda Agustina Irma Dewiyanti Iskandar Hasanuddin Iskandar Hasanuddin Junaidi M. Affan Junaidi M. Affan Lulusi Lulusi Lulusi Lulusi Makwiyah A. Chaliluddin Maria Ulfah Marwantim M Miftahuddin Miftahuddin Miftahuddin Miftahuddin Miftahuddin Miftahuddin Miftahuddin Muchlisin Z.A. Muhammad Muhammad Arif Muhammad Haiqal Muhammad Irham Muhammad Muhammad Muhammad Muhammad Muhammad Nasir Muhammad Redha Subqi Muhammad Rusdi Mulyadi Abdul Wahid Nabil Zurba Najwan Ihsan Nanda Rizki Purnama Nazaruddin Nazaruddin Novira Iswani Nur Fadli Nurul Fadhilah Oktari, Rina Suryani Putri Marni Putri, Retno Wahyuni Ratna Mutia Aprilla Razali Thaib Rianjuanda Ridha Riani Zahara Lubis Roesa Nellyana Roni Arif Munandar Sabri Sabri Said Amir Azan Said Amir Azan Sarwo Edhy Sofyan Sarwo Edhy Sofyan Sayed Abdul Azis Sayyid Afdhal El Rahimi Sayyid Afdhal El Rahimi Siti Sundari Sofyan Sofyan Syahrul Purnawan Syahrul Purnawan Syahrul Purnawan Syahrul Purnawan Syahrul Purnawan Syahrul Purnawan Syamsul Rizal Syamsul Rizal Syarifah Meurah Yuni Syarifah Meurah Yuni Syarifah Meurah Yuni Syarifah Meurah Yuni Taufiq Iskandar Taufiq Ismail Taufiq Saidi Taufiq Saidi Tengku Putra Fajran Alamsyah Thaib Rizwan Thaib Rizwan Vicky Prajaputra Yusria Darma Zainal A. Muchlisin

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