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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences CAUCHY: Jurnal Matematika Murni dan Aplikasi JOURNAL ONLINE OF PHYSICS Jurnal Pengukuran Psikologi dan Pendidikan Indonesia (JP3I) Jurnal Sumberdaya Akuatik Indopasifik Jurnal Biologi Tropis Cassowary IGKOJEI: Jurnal Pengabdian Masyarakat Prosiding Seminar Nasional Ilmu Manajemen, Ekonomi, Keuangan dan Bisnis Journal of Engineering and Technological Sciences
Bayu Pranata, Bayu
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Morphological Characteristics and Genetic Relationship of Red Snappers (Lutjanus timoriensis, Lutjanus malabaricus, Lutjanus erythropterus) in Papuan Waters Pranata, Bayu; Sala, Ridwan; Kusuma, Aradea Bujana; Purbani, Debora Christin; Mokodongan, Daniel Frikli; Sipriyadi, Sipriyadi; Azhar, Muhamad Ilham
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 29, No 2 (2024): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.29.2.191-200

Abstract

Environmental and genetic variables can exert an influence on alterations in morphological traits. Within fish species inhabiting diverse aquatic settings, there can be observed variations in morphological traits. Genetically, variations in fish morphological characteristics can occur through mating and gene flow. To date, there has been a lack of research conducted on the variability in morphological traits and genetic relationships between Lutjanus timoriensis, L. malabaricus, and L. erythropterus. Thus, the current research aimed to identify variations in the morphological characteristics as well as in the intra- and inter-specific relationships between three red snapper species from the genus Lutjanus.  Cytochrome oxidase I (COI) gene was used to study the molecular relationship among species of red snapper. The results showed that L. timoriensis had high intraspecific morphological variation in young individuals. Morphologically, L. timoriensis, L. malabaricus, and L. erythropterus are very similar. Unlike L. malabaricus and L. erythropterus, young and adult L. timoriensis have black patches in the pectoral fin axils. The adult L. erythropterus has a comparatively small mouth, no hump on its head, and no black saddle at the base of its tail. Meanwhile, L. malabaricus has a comparatively large mouth, a head with a hump, and a black saddle at the base of its tail. In terms of body size, L. erythropterus is larger than L. timoriensis and L. malabaricus. Based on NCBI and Bold System data, molecular analyses determined that the observed fish were L. timoriensis, L. malabaricus, L. erythropterus with a similarity of between 99.85 and 100%. The phylogenetic tree construction demonstrated that L. malabaricus, L. timoriensis and L. erythropterus were closely related.
Kontribusi KKN tematik dan MBKM riset dalam mendukung pengelolaan perikanan berkelanjutan di Wilayah Tasamu Rawanang : The Contribution of fisheries-based KKN and research-based MBKM for Supporting Sustainable Fisheries Management in Tasamu Rawanang area Widiastuti, Nurhani -; Firdaus, Alif; Natasya, Cendy; Husaema; Leatemia, Neafha G.; Bleskadit, Orgenes; Handayani, Prisilia; Saputra, Reyfado W.; Wikram, Wikram; Rumbiak, Ruben B.; Manohas, Feronika; Yembise, Leo Y.; Manangkalangi, Emmanuel; Talakua, Selfanie; Pranata, Bayu; Saleh, Fitriyah I.E.; Sabariah, Vera; Simatauw, Fanny Fransina Carolina
IGKOJEI: Jurnal Pengabdian Masyarakat Vol. 5 No. 4 (2024): IGKOJEI: Jurnal Pengabdian Masyarakat
Publisher : Fakultas Peternakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46549/igkojei.v5i4.507

Abstract

ABSTRACT  Asai village is the one of the coastal villages in the northern of Yapen Islands and has implemented tasamu rawanang since August 2023. In term of supporting tasamu rawanang implementation and its evaluation by EAFM (Ecosystem Ecosystem Approach to Fishery Management), community development and research are needed. This program conducted for three months, during March until May 2023. The specific activities on fisheries field consist of (i) fisheries data collection, (ii) introduction of coastal ecosystem and endangered marine faunas, (iii). Coral reef monitoring, and (iv) smoked fish chili sauce processing training. Overall, all the planned activities to support sustainable fisheries were successful. There were some recommendations to evaluate tasamu rawanang implementation. All parties had positive responses and hope that similar program can be replicated in other coastal areas.  Keywords: Coral reef monitoring; Ecosystem Approach to Fishery Management (EAFM); Fisheries data collection; Smoked fish chili sauce processing; Tasamu rawanang implementation     ABSTRAK  Kampung Asai adalah salah satu kampung pesisir di utara Pulau Yapen yang telah menerapkan tasamu rawanang sejak Agustus 2023. Dalam rangka mendukung pelaksanaan dan evaluasi tasamu rawanang melalui EAFM (Ecosystem Approach to Fishery Management diperlukan kegiatan pengabdian berupa KKN (Kuliah Kerja Nyata) Tematik Perikanan yang dirangkai dengan penelitian berupa MBKM (Merdeka Belajar Kampus Merdeka) Riset. Kegiatan dilaksanakan selama 3 bulan sejak Maret hingga Mei 2023. Kegiatan spesifik pada bidang perikanan terdiri dari (i) pendataan hasil tangkapan nelayan dan alat  tangkap, (ii). pengenalan ekosistem penting di perairan dan biota laut   dilindungi, (iii). pemantauan kondisi terumbu karang, dan (iv). pelatihan pembuatan sambal ikan asap. Secara umum, seluruh kegiatan pada bidang perikanan yang direncanakan untuk mendukung perikanan berkelanjutan berhasil dilaksanakan. Terdapat sejumlah rekomendasi yang diberikan oleh tim dalam evaluasi tasamu rawanang dan disetuji masyarakat. Seluruh pihak memberi respon positif dan berharap kegiatan sejenis dapat direplikasi di wilayah pesisir lainnya. Kata kunci: Data koleksi perikanan; Implementasi tasamu rawanang; Monitoring terumbu karang; Pengelolaan Perikanan Berbasis Ekosistem (EAFM); Pelatihan pengolahan sambal ikan asap
Morphological and Genetic Characteristics of Red Snapper (Lutjanidae) in Nabire Waters Maharani, Andi Nacisa Malfin Savina; Sala, Ridwan; Toha, Abdul Hamid A; Purbani, Debora Christin; Mokodongan, Daniel Frikli; Kusuma, Aradea Bujana; Pranata, Bayu
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 30, No 1 (2025): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ik.ijms.30.1.83-91

Abstract

The Lutjanidae family has a wide range of varieties, posing challenges in their morphological identification. Molecular identification is crucial for augmenting the current morphological data as a comprehensive database for documenting the presence of economically significant fish species in Nabire water. This article provides a comprehensive analysis of the morphological and genetic characteristics of red snapper species, as well as assessment of the evolutionary connections among snapper fish found in the water. This study aims to analyze the morphological and genetic characteristics of red snapper species and assess the evolutionary relationships among red snapper found in the sea waters. The DNA extraction procedure was conducted according to the instructions provided by the Geneaid gSYNC DNA extraction kit. The molecular marker used is the DNA barcode of the cytochrome oxidase subunit I (CO1) gene. A total of 29 individuals were identified, representing 8 species, namely Lutjanus timoriensis, Lutjanus gibbus, Lutjanus bohar, Lutjanus papuensis, Pinjalo lewisi, Etelis coruscans, Pristipomoides multidens, and Aphareus rutilans. The molecular analysis indicated that there was a fragment length of 620 base pairs (bp). P. multidens and L.  gibbus had the greatest genetic distance (0.22), whilst the species L. bohar and L. gibbus had the smallest genetic distance (0.11). The phylogenetic tree reconstruction yielded 8 monophyletic clades. Based on morphological and genetic analysis, eight species of the Lutjanidae family were identified in Nabire waters. Research is needed on biological parameters such as size when first caught, optimum length of capture and size when first gonad mature.
Aspek Biologi Udang Jerbung (Penaeus merguiensis de Man 1888) di Perairan Kabupaten Teluk Bintun, Papua Barat Pranata, Bayu; Kusuma, Aradea Bujana; Sala, Ridwan; Sabariah, Vera; Lapadi, Ida; Saleh, Fitriyah Irnawati E.; Wyrasti, Andi Fajeriani; Kolibongso, Duaitd
Jurnal Sumberdaya Akuatik Indopasifik Vol 9 No 1 (2025): Februari
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2025.Vol.9.No.1.520

Abstract

The waters of Bintuni Bay have abundant natural resources, especially aquatic biota. One of the aquatic biota with high economic value is the Jerbung shrimp (Penaeus merguiensis). Currently, information about the biological aspects of shrimp in the waters of Bintuni Bay is still very lacking. Specifically, the aim of this research is to examine the size structure, first caught size (L50%), infinity size (L∞), growth patterns, condition factors and gonad maturity level (TKG) of Jerbung shrimp in the waters of Bintuni Bay. The research method used is the survey method. The research was carried out from March to April 2023. The results showed that the average carapace length and weight of male shrimp were 4.6 cm and 14.8 gr. Meanwhile, the average shell length and weight of female shrimp are 5.4 cm and 25.8 grams. The L50% value of male and female shrimp is 5.3 cm and 5.8 cm, the ½ L∞ value of male and female shrimp is 3.4 cm and 3.5 cm. If L50% > ½ L∞ means the size of the shrimp caught is quite large. The growth pattern of male and female shrimp is negative allometry (b = 0.1035 and b = 0.7424). The condition factor values for male and female shrimp are 0.31 and 1.73. The results of TKG observations showed that 75.2% of female shrimp were in TKG I and II, meaning that 50% of the shrimp caught had not yet reached TGK III and IV at the time of the research.
Correction to: Investigation of Liquefaction in Balaroa, Petobo, and Jonooge (Central Sulawesi, Indonesia) Caused by the 2018 Palu Earthquake Sequence Triyono, Rahmat; Widiyantoro, Sri; Zulfakriza, Zulfakriza; Supendi, Pepen; Rahman, Aditya Setyo; Gunawan, Mohamad Taufik; Oktavia, Nur Hidayati; Rahmatullah, Fajri Syukur; Fadhilah, Fildzah Zaniati; Habibah, Nur Fani; Sativa, Oriza; Permana, Dadang; Wallansha, Robby; Octantyo, Ardian Yudhi; Persada, Yoga Dharma; Pranata, Bayu; Sujabar, Sujabar
Journal of Engineering and Technological Sciences Vol. 57 No. 2 (2025): Vol. 57 No. 2 (2025): April
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.2.10

Abstract

Correction to:  Journal of Engineering and Technological Sciences https://doi.org/10.5614/j.eng.technol.sci.2024.56.3.1   The article titled "Investigation of Liquefaction in Balaroa, Petobo, and Jonooge (Central Sulawesi, Indonesia) Caused by the 2018 Palu Earthquake Sequence" , written by Rahmat Triyono, Sri Widiyantoro, Zulfakriza, Pepen Supendi, Aditya Setyo Rahman, Mohamad Taufik Gunawan, Nur Hidayati Oktavia, Fajri Syukur Rahmatullah,Fildzah Zaniati Fadhilah, Nur Fani Habibah, Oriza Sativa, Dadang Permana, Robby Wallansha, Ardian Yudhi Octantyo, Yoga Dharma Persada, Bayu Pranata, and Sujabar, was originally published electronically on thepublisher’s internet portal on 19 June 2024 . The corresponding author's affiliation at the time of publication was as follows: (1) Indonesian Agency of Meteorology, Climatology, and Geophysics, Jalan Angkasa 1 No. 2, Jakarta 10610, Indonesia; and (2) Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia.   Subsequently, the authors decided to update the corresponding author's affiliation to: (1) Geophysical Engineering Graduate Program, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia; and (2) Indonesian Agency of Meteorology, Climatology, and Geophysics, Jalan Angkasa 1 No. 2, Jakarta 10610, Indonesia.   The original article can be found online at https://doi.org/10.5614/j.eng.technol.sci.2024.56.3.1
Aspek biologi kepiting bakau (Scylla sp.) di Perairan Teluk Bintuni, Papua Barat Pranata, Bayu; Kusuma, Aradea Bujana; Lapadi, Ida; Sala, Ridwan; Ayamiseba, Yunita; Wyrasti, Andi Fajeriani
Cassowary Vol 8 No 2 (2025): April
Publisher : Program Pascasarjana Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/casssowary.cs.v8.i2.300

Abstract

ABSTRACT: The waters of Bintuni Bay have potential mangrove crab (Scylla sp.) resources. Mud crabs are aquatic biota that have high economic value. Information about the biological aspects of mangrove crabs in the waters of Bintuni Bay is still very minimal. This research aims to examine the size structure, growth patterns, condition factors and gon-ad maturity level (TKG) of mud crabs in the waters of Bintuni Bay. The research was carried out from May to July 2023. The research results showed that the average carapace width and weight of male mud crabs were 13.6 cm and 553.2 grams. Meanwhile, the average size of the shell width and weight of female mud crabs is 12.5 cm and 284.1 grams. The average size of mangrove crabs caught is included in the catchable category (KKP Ministerial Regulation No. 16 of 2022). The growth pattern of male mud crabs is isometric (b = 3.15), while the growth pattern of female mud crabs is negative allometric (b = 2.12). The condition factor values for male and female mud crabs are 1.01 and 1.03. The results of TKG observations showed that 78.4% of female crabs were in TKG I and II, meaning that 50% of the shrimp caught had not yet reached TGK III and IV at the time of the research.
Genetic Diversity of Red Snapper (Lutjanus erythropterus) in Kaimana Waters Milansari, Sindi; Toha, Abdul Hamid A.; Pranata, Bayu; Dailami, Muhammad; Manangkalangi, Emmanuel; Jeni, Jeni
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.8840

Abstract

Genetic diversity is one level of biodiversity that is very importan for the resilience of biota in the face of environmental pressures such as cilmater change. However, information on the genetic diversity of red snapper in Kaimana water is still very limited. This study determines the genetic diversity of red snapper (Lutjanus erythropterus) in Kaimana waters, West Papua, to support conservation and sustainable management. The methods used include PCR, DNA sequencing, and phylogenetic analysis using MEGA11, with samples taken from the Kaimana fish market. The results of this study show differences in the percentage of adenine and guanine in sample B81.01, with an average codon composition of 218 codons, where UCU(G) Serine has the highest percentage of 13.8% and RSCU 2.38%, and 20 types of amino acids were detected. Lutjanus erythropterus has 3 haplotypes, with 2 universal haplotypes and 1 specific. In Kaimana waters, the haplotype diversity (hd) value is 0.50000 and the nucleotide diversity (π) is 0.00091, which is influenced by the large population size and high migration ability.
IDENTIFIKASI STRUKTUR BAWAH PERMUKAAN MENGGUNAKAN METODE TOMOGRAFI SEISMIK WAKTU TEMPUH DI WILAYAH SUMATERA BAGIAN UTARA Roussely, Athina; Muttaqy, Faiz; Nur Aulia, Atin; Surya Putra, Ade; Amin, Sarwo Sucitra; Pranata, Bayu
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 3 (2025): JOP (Journal Online of Physics) Vol 10 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i3.45650

Abstract

Sumatra memiliki catatan kegempaan yang cukup tinggi yang dipengaruhi oleh aktivitas tektonik dan aktivatas vulkanik, terkhususnya pada wilayah Sumatera bagian Utara pada koordinat 1° LU – 7° LU dan 93° BT – 101°, data yang digunakan berasal dari Katalog BMKG sebanyak 1207 event sejak tahun 2009-2020 dan 46 stasiun.  Pengolahan data menggunakan perangkat lunak Simulps12, proses inversi menggunakan metode LSQR (Least Squares), serta teknik penjejakan pseudo-bending untuk meningkatkan akurasi hasil. Pada area permukaan kehadiran respon anomali negatif Vp, Vs, dengan rasio Vp/Vs tinggi menunjukkan kehadiran area sedimentasi di sisi timur pulau dan sebagai zona lemah berupa struktur geologi, sedangkan zona subduksi memiliki respon anomali kecepatan tinggi yang bersesuaian dengan kehadiran hiposenter gempabumi. Zona subduksi pada area penelitian merupakan area subduksi dangkal dengan zona peleburan sebagian yang relatif dangkal hingga menengah, yang mempengaruhi gunung api area penelitian. Zona peleburan sebagian diwakili oleh respon anomali negatif Vp, Vs, dengan rasio Vp/Vs rendah, respon ini menyebarkan hingga di bawah gunung api sebagai kehadiran suplai magma dan kehadiran dapur magma. Pada respon anomaly positif Vp, Vs, dengan rasio Vp/Vs rendah menunjukkan kehadiran zona kompak pada permukaan, di sekitar kaldera toba respo ini menunjukkan kehadiran bekas konduit dari intrusi magma.  
Identification of Earthquake Prone Zones in Sumatra using Density Based Spatial Clustering of Applications with Noise Sirodj, Dwi Agustin Nuriani; Aidi, Muhammad Nur; Sartono, Bagus; Syafitri, Utami Dyah; Pranata, Bayu
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 10, No 2 (2025): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v10i2.36120

Abstract

This study investigates the spatial distribution of earthquakes in Sumatra using the DBSCAN clustering algorithm applied to seismic data spanning 1 January 2000 to 31 December 2023. The analysis identified two distinct seismic clusters: one in the northern region (Aceh and North Sumatra) and another in the southern region (Lampung, Bengkulu, and West Sumatra), while several events in central areas were classified as noise. Cluster validity assessment confirmed that the identified groups are compact and well separated, reflecting meaningful seismotectonic segmentation. Statistical testing further revealed significant differences in earthquake depth and magnitude between the clusters, supporting the robustness of the findings. Notably, the southern cluster corresponds to the Mentawai Fault system, whereas the northern cluster aligns with the subduction zone and the Sumatran Fault. DBSCAN proved particularly effective in this context as it can capture clusters of arbitrary shapes, consistent with the complex geological structures governing seismicity in Sumatra.
Pengembangan Asesmen Higher Order Thinking Skills (HOTS) Berbasis Computer Based Test (CBT) pada Materi Induksi Elektromagnetik Pranata, Bayu; Suyatna, Agus; Rosidin, Undang
JP3I (Jurnal Pengukuran Psikologi dan Pendidikan Indonesia) Vol. 9 No. 2 (2020): JP3I
Publisher : FAKULTAS PSIKOLOGI UIN SYARIF HIDAYATULLAH JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jp3i.v9i2.16113

Abstract

The research objective was to produce assessment product for Higher Order Thinking Skills (HOTS) using Computer Based Test (CBT) with four types of HOTS questions (true or false, multiple choices, fill in the blank and matching). It applied the basis of factual, conceptual, procedural and metacognitive-knowledge dimensions with illustrations in the form of discourse, images, graphics, videos, animation and interactive stimulation and feedback after going through the stages of logical validation, empirical validation and respondent questionnaires. Assessment product HOTS using CBT was implemented to Senior High School students in the learning process of physics subject through R&D research steps proposed by Borg and Gall that aimed to stimulate higher-order thinking skills. This is a development research in which the method was conducted by giving HOTS test questions using CBT to measure students’ HOTS profiles and distributing practical questionnaires related to students’ perceptions toward assessment products of HOTS using CBT. The data collection technique was carried out using expert validation sheet and respondent questionnaire. Then, the collected data was analyzed in descriptive quantitative. The analysis showed that the logical validity obtained from expert validation on HOTS assessment using CBT was 81% with a valid category. Empirical validity was obtained from students’ HOTS test results using CBT which showed that the four types of questions were able to measure students’ HOTS. In addition, students’ responses on practical aspects were 86.75% with a very practical category. The results of the data showed that the development of assessment product of HOTS using CBT in electromagnetic induction material for Physics subject in Senior High School is already valid and practical. Thus, it was concluded that the development of HOTS assessment using CBT has already contained the right stimulus and is able to encourage students to think using HOTS.
Co-Authors Abdul Hamid A. Toha Agus Suyatna Amin, Sarwo Sucitra Andi Fajeriani Wyrasti Aradea Bujana Kusuma, Aradea Bujana Ayamiseba, Yunita Azhar, Muhamad Ilham Bagus Sartono Bleskadit, Orgenes Debora Tambunan Dona Pasaribu Dwi Agustin Nuriani Sirodj Emmanuel Manangkalangi Fadhilah, Fildzah Zaniati Firdaus, Alif Gunawan, Mohamad Taufik Habibah, Nur Fani Handayani, Prisilia Husaema Ida Lapadi Jeni, Jeni Kolibongso, Duaitd Leatemia, Neafha G. Maharani, Andi Nacisa Malfin Savina Manohas, Feronika Milansari, Sindi Mokodongan, Daniel Frikli Muhammad Dailami, Muhammad Muhammad Nur Aidi Muttaqy, Faiz Natasya, Cendy Nur Aulia, Atin Octantyo, Ardian Yudhi Oktavia, Nur Hidayati Permana, Dadang Persada, Yoga Dharma Purbani, Debora Christin Rahman, Aditya Setyo Rahmatullah, Fajri Syukur Ridwan Sala Roussely, Athina Rumbiak, Ruben B. Saleh, Fitriyah I.E. Saleh, Fitriyah Irnawati E. Saputra, Reyfado W. Sativa, Oriza Selfanie Talakua, Selfanie Sibarani, Hendra Jonathan Simatauw, Fanny Fransina Carolina Sipriyadi Sri Widiyantoro Sujabar, Sujabar Supendi, Pepen Surya Putra, Ade Triyono, Rahmat Undang Rosidin Utami Dyah Syafitri Vera Sabariah, Vera Wallansha, Robby Widiastuti, Nurhani - Wikram, Wikram Yembise, Leo Y. Zulfakriza, Zulfakriza