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All Journal Jurnal Perikanan dan Kelautan Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Perikanan dan Kelautan REKAYASA Jurnal Abdimas BSI: Jurnal Pengabdian Kepada Masyarakat DoubleClick : Journal of Computer and Information Technology JGISE-Journal of Geospatial Information Science and Engineering PENA AKUATIKA : JURNAL ILMIAH PERIKANAN DAN KELAUTAN Jurnal Laot Ilmu Kelautan Jurnal Ekologi, Masyarakat dan Sains International Journal of Science, Engineering and Information Technology Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Juvenil: Jurnal Ilmiah Kelautan dan Perikanan Journal of Coastal and Ocean Sciences Abditeknika - Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas Ekonomi dan Bisnis Indonesian Journal of Oceanography El-Jughrafiyah : Jurnal Geografi dan Terapannya Jurnal Miyang : Ronggolawe Fisheries and Marine Science Journal Jurnal Riset Kelautan Tropis (J-Tropimar) Jurnal Pengabdian Masyarakat Bangsa Abdisembrani: Jurnal Pengabdian Masyarakat Jurnal Kelautan dan Perikanan Indonesia Lempuk: Jurnal Ilmu Kelautan dan Perikanan Jurnal Perikanan dan Kelautan
Luhur Moekti Prayogo
Marine Science Study Program, Faculty Of Fisheries And Marine, Universitas PGRI Ronggolawe
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Penerapan Metode Least Square untuk Analisis Harmonik Pasang Surut Air Laut di Kabupaten Tuban, Jawa Timur Laili Ainur Rosida; Moh. Syaeful Anwar; Oktria Muhammad Sholeh; A. Syahrul Mushofa; Luhur Moekti Prayogo
EL-JUGHRAFIYAH Vol 2, No 2 (2022): El-Jughrafiyah : August, 2022
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jej.v2i2.17160

Abstract

Pasang surut merupakan fenomena naik turunnya muka air laut secara periodik akibat gaya tarik antar benda langit yaitu bumi, bulan dan matahari. Pengetahuan mengenai pasang surut penting dilakukan karena setiap wilayah memiliki karakteristik masing-masing dan berpengaruh terhadap aktivitas masyarakat wilayah pesisir seperti pelayaran, tambak garam dan penangkapan ikan. Kabupaten Tuban merupakan salah satu kabupaten di Jawa Timur dimana lima wilayahnya yang berbatasan langsung dengan laut Jawa, yaitu kecamatan Bancar, Tambakboyo, Jenu, Tuban dan Palang. Kelima kecamatan tersebut merupakan tepat aktivitas yang berkaitan dengan pelayaran dan navigasi serta pelabuhan. Penelitian ini bertujuan untuk mengetahui karakteristik pasang surut air laut di perairan Tuban, Jawa Timur. Metode yang digunakan dalam penelitian ini adalah Least Square atau Kuadrat Terkecil. Data pasang surut yang digunakan yaitu data pada bulan Januari 2021 yang mewakili data musim penghujan (angin muson barat) dan data bulan Agustus 2021 yang mewakili data musim kemarau (angin muson timur) yang bersumber dari Badan Informasi Geospasial (BIG) dengan interval satu jam. Dari hasil penelitian yang telah dilakukan dapat disimpulkan bahwa tipe pasang surut wilayah perairan Tuban yaitu Diurnal atau Harian Tunggal dengan bilangan Formzahl sebesar 5.65 dan 10.25. Pada musim barat, pasang tertinggi terjadi pada awal dan pertengahan bulan. Sedangkan surut terendah terjadi di sekitar tanggal 7-9 dan 21-25 Januari 2021. Sedangkan pada musim timur, pasang tertinggi terjadi pada 7-13 dan 19-25 Agustus 2021 dan surut terendah terjadi pada 15-17 Agustus 2021.  Komponen harmonik cenderung lebih besar pada komponen pembentuk pasang surut Diurnal yaitu K1, O1, dan P1.
STUDI PARAMETER OSEANOGRAFI FISIKA DAN KIMIA DI PERAIRAN PULAU SULAWESI, INDONESIA Luhur Moekti Prayogo; Irvan Aris Kurniawan
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.35

Abstract

Sulawesi Island is one of Indonesia's largest islands and is known to have potential in the marine sector, both in tourism and fisheries. Sulawesi island is crossed by the equator line in the northern quarter so that most of its territory is in the southern hemisphere. The diverse geography of the island of Sulawesi causes differences in the characteristics of the oceanographic parameters. The salinity and tides of seawater are oceanographic parameters that can affect biota's survival in the waters. This research aims to study the chemical physics oceanography parameters, which include tides and salinity in the waters of the island of Sulawesi using NOAA and BIG data. The research that has been done showed that the waters around the island of Sulawesi had an average high water level of 1.3 meters and a low water level of 0.9 meters. Then from the calculation, the Formzahl number is 0.8 (0,25 < F £ 1,5), which means that the tidal type is in the Mixed category, tends to be semi-diurnal. The salinity analysis results showed that in July 2020, the salinity content ranged from 29.63 to 36.45 ppt, with an average of 33.99 ppt. In November 2020, the salinity content ranged from 25.71 to 39.74 ppt with an average of 33.50 ppt. In February 2021, the salinity content ranged from 27.23 to 37.73 ppt with an average of 33.00 ppt. The lowest salinity was obtained in the rainy season in November 2020, and the highest salinity content was in the same month in a small part of the region. In the dry season, seawater's average salinity content in Sulawesi waters is relatively high compared to the rainy season, with the lowest content value of 29.63 ppt.
Karakteristik Pasang Surut Air Laut Di Perairan Kabupaten Trenggalek, Jawa Timur Feni Nurkumala; Nurdin Nurdin; Nasrulllah Hanif Maulana; Wawan Diyanto; Luhur Moekti Prayogo
Jurnal Laot Ilmu Kelautan Vol 4, No 2 (2022): Jurnal Laot Ilmu Kelautan
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jlik.v4i2.5540

Abstract

Trenggalek merupakan salah satu kabupaten yang berada di Provinsi Jawa Timur yang memiliki potensi sumber daya alam yang cukup melimpah salah satunya laut. Aspek penting yang harus diperhatikan dalam pengelolaan sumber daya laut adalah informasi pasang surut. Pengetahuan mengenai pasang surut menjadi penting dikarenakan setiap wilayah memiliki karakteristik masing-masing. Masyarakat pesisir memanfaatkan informasi pasang surut untuk aktivitas seperti menentukan waktu berlayar dan mengisi tambak pada saat air pasang. Studi ini bertujuan untuk mengetahui karakteristik pasang surut di perairan Kabupaten Trenggalek, Jawa Timur dengan metode Least Square. Data pasang surut diperoleh dari Badan Informasi Geospasial (BIG) dengan interval satu jam pada bulan Maret dan Juli 2021 yang mewakili musim barat dan timur. Dari penelitian yang telah dilakukan dapat diketahui bahwa di perairan kabupaten Trenggalek hasil analisis pada bulan Maret dan Juli 2021 menunjukkan bilangan Formzahl sebesar 0.42 dan 0.40 (nila F antara 0.25 – 1.25), yang berarti tipe pasang surut di perairan Trenggalek adalah Campuran dengan kecenderungan Semidiurnal. Tipe ini menjelaskan bahwa dalam satu hari terjadi dua kali air pasang dan dua kali air surut. Selanjutnya grafik fluktuasi pasang surut menunjukkan pada bulan Maret 2021, pasang tertinggi terjadi pada tanggal 1-7 dan 13-21, sedangkan surut terendah terjadi pada tanggal 9-11 dan 25-29. Kemudian pada bulan Juli 2021, pasang tertinggi terjadi pada tanggal 9-15 dan 13-21, sedangkan surut terendah terjadi pada tanggal 9-11 dan 21-29. Dari penelitian ini, dapat disimpulkan bahwa terdapat perbedaan waktu pasang dan surut pada musim yang berbeda di perairan Kabupaten Trenggalek, Jawa Timur.
Land Cover Classification Assessment Using Decision Trees and Maximum Likelihood Classification Algorithms on Landsat 8 Data Luhur Moekti Prayogo; Bimo Aji Widyantoro; Amir Yarkhasy Yuliardi; Muhammad Hanif; Perdana Ixbal Spanton; Marita Ika Joesidawati
DoubleClick: Journal of Computer and Information Technology Vol 6, No 2 (2023): Perkembangan Teknologi Informasi
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/doubleclick.v6i2.10606

Abstract

Classification technique on remote sensing images is an effort taken to identify the class of each pixel based on the spectral characteristics of various channels. Traditional classifications such as Maximum Likelihood are based on statistical parameters such as standard deviation and mean, which have a probability model of each pixel in each class. While the object-based classification method, one of which is the Decision Trees, is based on rules for each class with mathematical functions. This study compares the Decision Trees and Maximum Likelihood algorithms for land cover classification in the Surabaya and Bangkalan areas using Landsat 8 data. This research begins with creating Regions of Interest (ROIs) and Rules on images with greater than and less than functions for Decision Trees. The ROIs test was carried out using the Separability Index and matching each class using the Confusion Matrix. The experimental results show that the accuracy value resulting from the Confusion Matrix calculation is 90.48%, with a Kappa Coefficient Value of 0.87. The Decision Trees method produces land cover nigher to the actual condition than the Maximum Likelihood method. The difference in the class distribution of the two ways is not significant. This study is limited because the validation uses manual interpretation results. Future research is expected to use the large-scale classification results from the relevant agencies to verify the classification results and use field data, larger samples of ROIs, and the use of high-resolution imagery in order to improve the classification results.
Karakteristik Multitemporal Arus Permukaan Laut di Perairan Tuban, Jawa Timur Muhammad Tezar; Mifta Irmayunita; Ahmad Mualim; Faruq Faruq; Luhur Moekti Prayogo
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.53

Abstract

Sea currents are the mass transfer of water from one place to another caused by wind, density differences, and tides. In general, the characteristics of ocean currents in Indonesian waters are influenced by wind and tides. In shallow waters (coastal areas), ocean currents can be generated by ocean waves, wind, and tides. Meanwhile, tides are the main driving force in narrow and semi-enclosed waters (straits and bays). This study aims to determine the multitemporal differences in current movement patterns in 2010-2012 in the waters of Tuban, East Java. Research data is obtained from NOAA and calculated direction and speed, and then the results are presented in the form of a map. From the research results that have been done, it can be concluded that the current velocity in the waters of Tuban in 2010-2012 is relatively the same (the difference in current speed is not significant). In 2010 and 2011, the average current speed was 0.06 m/s, where the current moved from west to east and north. Then in 2012, the average current speed was 0.11 m/s, where the current moved from west to east. It is necessary to conduct a more in-depth study to determine the effect of tides on current movement, especially in shallow waters. In addition, further research is expected to use data from survey results directly in the field for validation so that research results will be more accurate.
Karakteristik Multitemporal Arus Permukaan Laut di Perairan Tuban, Jawa Timur Muhammad Tezar; Mifta Irmayunita; Ahmad Mualim; Faruq Faruq; Luhur Moekti Prayogo
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 5 No 1 (2023): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v5i1.53

Abstract

Sea currents are the mass transfer of water from one place to another caused by wind, density differences, and tides. In general, the characteristics of ocean currents in Indonesian waters are influenced by wind and tides. In shallow waters (coastal areas), ocean currents can be generated by ocean waves, wind, and tides. Meanwhile, tides are the main driving force in narrow and semi-enclosed waters (straits and bays). This study aims to determine the multitemporal differences in current movement patterns in 2010-2012 in the waters of Tuban, East Java. Research data is obtained from NOAA and calculated direction and speed, and then the results are presented in the form of a map. From the research results that have been done, it can be concluded that the current velocity in the waters of Tuban in 2010-2012 is relatively the same (the difference in current speed is not significant). In 2010 and 2011, the average current speed was 0.06 m/s, where the current moved from west to east and north. Then in 2012, the average current speed was 0.11 m/s, where the current moved from west to east. It is necessary to conduct a more in-depth study to determine the effect of tides on current movement, especially in shallow waters. In addition, further research is expected to use data from survey results directly in the field for validation so that research results will be more accurate.
Pelatihan Pengemasan dan Pemasaran Produk Olahan Ikan Sebagai Produk Unggulan di SMK Muhammadiyah 7 Kedungpring Kabupaten Lamongan, Jawa Timur Spanton M, Perdana Ixbal; Prayogo, Luhur Moekti; Yuliardi, Amir Yarkhasy
Jurnal Abdimas Ekonomi dan Bisnis Vol. 4 No. 1 (2024): Jurnal Abdimas Ekonomi Bisnis
Publisher : LPPM Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/abdiekbis.v4i1.3016

Abstract

Indonesia merupakan penghasil produk utama hasil pertanian (dalam arti luas) yang beberapa diantaranya memiliki keunggulan komparatif di dunia. Salah satu daerah di Lamongan yang masyarakatnya tidak sedikit yang berprofesi sebagai Nelayan Tangkap. Hasil tangkapan nelayan umumnya langsung dijual dalam bentuk produk mentah. Masyarakat mulai mengolah hasil tangkapan secara sederhana dan bersifat usaha rumahan. Untuk meningkatkan nilai jual dari produk hasil olahan ikan tersebut dibutuhkan teknik pengemasan yang menarik. Oleh karena itu pelatihan pengemasan produk ini bertujuan untuk menginformasikan dan menambah pengetahuan masyarakat khususnya guru-guru di SMK Muhammadiyah 7 Kedungpring Kabupaten Lamongan agar dapat mengemas produk ikan yang dihasilkannya secara menarik dan higienis. SMK ini dipilih karena memiliki jurusan kelautan dan perikanan sehingga guru-guru dan peserta didik dapat menginformasikan hasil pelatihan kepada masyarakat yang lebih luas. Metode yang digunakan adalah pelatihan dan praktek secara langsung. Tahapan pelatihan dimulai dengan sosialisasi pengemasan produk dan penggunaan label kemasan serta evaluasi diakhir kegiatan. Hasil pelatihan menunjukkan bahwa peserta pelatihan mampu menghasilkan kemasan produk olahan ikan yang menarik dan higienis dan dilengkapi dengan label yang informatif.
Pengemasan dan Pemasaran Produk Hasil Olahan Ikan Lele di Kelompok Pembudidaya Ikan Sebagai Produk Unggulan Kabupaten Tuban, Jawa Timur Munir, Miftachul; Prayogo, Luhur Moekti; Linayati, Linayati
Jurnal Abdimas BSI: Jurnal Pengabdian Kepada Masyarakat Vol 7, No 2 (2024): Agustus 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/jabdimas.v7i2.18472

Abstract

Potensi budidaya air tawar mulai digemari masyarakat pembudidaya dimana perikanan tangkap mulai mengalami overfishing.  Kabupaten Tuban memiliki potensi perikanan budidaya, salah satu pembudidaya air tawar yang ada yaitu di Kelurahan Perbon, Kabupaten Tuban. Kelompok Pembudidaya Ikan (Pokdakan) “Jabrisan Rumbuk Dadi Makmur” merupakan salah satu kelompok pembudidaya ikan lele yang terbentuk pada bulan November 2022 tetapi anggotanya rata-rata memulai budidaya dari tahun 2014. Kelompok yang terdiri dari 10 pembudidaya ini memiliki tujuan utama yaitu bersinergi dalam hal pemasaran, karena budidaya lele jika tidak paham akan triknya maka dipastikan tidak bisa bertahan. Permasalahan mitra yang ada saat ini adalah istri-istri pembudidaya rata-rata berprofesi sebagai ibu rumah tangga sehingga akan sangat disayangkan jika memiliki bahan untuk pembuatan olahan namun tidak dimanfaatkan. Pelatihan diawali dengan pemaparan materi, menyiapkan bahan-bahan olahan, praktik langsung pembuatan olahan ekado dan kaki naga, pengemasan dan pemasaran produk hasil olahan serta diakhiri dengan evaluasi.  Dari hasil angket peserta pelatihan peningkatan pengetahuan sebesar 46.2% yaitu dari sebelum diadakan pelatihan 45% dan setelah diadakan pelatihan 91.2%, artinya bahwa ada peningkatan pengetahuan tentang materi dan praktek yang disampaikan dalam pelatihan.
Residual Analysis and Tidal Harmonic Components in Bangkalan Regency, East Java Prayogo, Luhur Moekti; Yuliardi, Amir Yarkhasy; Spanton M, Perdana Ixbal; Suwarsih; Joesidawati, Marita Ika; Sukma, Raka Nur
MIYANG Vol 3 No 2 (2023): Jurnal Miyang Edisi November 2023
Publisher : Faculty of Fisheries and Marine, Universitas PGRI Ronggolawe, Tuban, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55719/j.miy.v3i2.921

Abstract

Bangkalan Regency is one of Madura, East Java, where some of its areas are located in a coastal environment. The coastal environment can experience economic development due to the transportation aspect so that many industries have been established in that environment. Studies on oceanographic parameters are essential because management of coastal environments can not be separated from oceanographic information: The tides information about the tidal characteristics can be obtained after performing a harmonic analysis, which produces the value of harmonic components. This study analyses the residue and tidal harmonic components using the LP-Tides Matlab software in the Sepulu district, Bangkalan Regency, East Java. The data used are January 2021 data from the Geospatial Information Agency. This research shows that the main harmonic components generated include K2, M4, MS4, M2, S2, N2, K1, O1, and P1. The tidal type shows that the Sepulu district is a semi-diurnal type with a Formzahl number = 0.08566. The maximum observation and prediction data values for January 2021 in the Sepulu district are 978 and 1273.64 mm. The MSL value is 434 mm, with an average tidal residue value between the observation and predictive data = 166.01 mm. Then the calculation of the RMSE value and standard deviations are 12.88 and 125.90 mm
Investigation of the Tidal Character in Bawean Island East Java Using Admiralty Method Luhur Moekti Prayogo; Muhammad Hanif
Jurnal Perikanan dan Kelautan Vol. 27 No. 1 (2022): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.1.1-5

Abstract

Bawean Island is one of the islands in Gresik Regency, East Java, where almost all its territory is a coastal environment. This region's tidal oceanographic condition is critical because this area has a lot of potential for marine tourism and relatively shallow waters. This study aims to determine the tidal characteristics in the waters of Bawean Island, East Java, using the Admiralty method. This method was chosen because it can calculate the tidal component with only 15 days of data and can be used in various water conditions. The data used is tidal data from the Geospatial Information Agency (BIG) on November 1-15, 2020. From this research, it can be concluded that tidal analysis using the Admiralty method produces nine components, including M2, S2, N2, K1, O1, P1, M4, MS4, and K2. The four components determine the type of tide, namely O1, K1, M2, and S2, with amplitude values of 11.79347, 30.14857, 55.72241, and 63.69851. The calculation with the Formzahl number equation yields a value of 0.3512 (0.25 <F <1.5), which means that the tidal type in Bawean Island, East Java, has a mixed type with a semidiurnal tendency (double daily).
Co-Authors -, Linayati - A. Syahrul Mushofa ABDUL BASITH Abdul Basith Achmad Sudianto Ahmad Mualim Ahyuni Ahyuni Al Shida Natul Amir Yarkhasy Yuliardi Bimo Aji Widyantoro Dewi Purwanti, Dewi Faruq Faruq Feni Nurkumala Firdaus, Randi Firman Farid Muhsoni Hendra Saputra Irvan Aris Kurniawan Joko Eddy Sukoco Jumiati Jumiati Jumiati Laili Ainur Rosida Leni Suspidayanti Linayati, Linayati Mahardhika Nur Permatasari Marita Ika Joesidawati Mifta Irmayunita Miftachul Munir Moh. Syaeful Anwar Mohammad Bahrus Syakirin Muhamad Rifqi Muhammad Hanif Muhammad Hanif Muhammad Hanif Muhammad Tezar Napitupulu, Gandhi Nasrulllah Hanif Maulana Nova Widiantoro Nugroho, Agung Tri Nurdin Nurdin Oktria Muhammad Sholeh Rachman, Herlambang Aulia Rahmalia, Diah Ayu Raka Nur Sukma Rizki Atthoriq Hidayat Sari, Ratna Juita Sarono Sarono Septy Heltria Spanton, Perdana Ixbal Sudianto, Achmad Sugeng Hartono Sumaryo Sumaryo Suwarsih Tri Yusufi Mardiana Tristiana Yuniarti Wawan Diyanto Yahya Dwikarsa Yuyun Suprapti Zainul Hidayah Zaki Mubarok