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All Journal HAYATI Journal of Biosciences Jurnal Pengolahan Hasil Perikanan Indonesia ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Jurnal Pengolahan dan Bioteknologi Hasil Perikanan Journal of Marine Research Indonesian Journal of Biotechnology Jurnal Kelautan Tropis Script Journal: Journal of Linguistic and English Teaching Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Triadik Diksa : Jurnal Pendidikan Bahasa dan Sastra Indonesia Jurnal Ilmiah KORPUS Jurnal Riset Akuakultur Journal of English Education and Teaching (JEET) Journal of Microbial Systematics and Biotechnology Mendapo: Journal of Administrative Law ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Society: Jurnal Pengabdian Masyarakat Demokrasi: Jurnal Ilmu Pemerintahan
Agus Trianto
Department Of Marine Science, Faculty Of Fisheries And Marine Science, Diponegoro University, St. Prof. Soedarto, SH., Tembalang, Semarang 50269, Central Java, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Perbandingan Kondisi Terumbu Karang dan Hubungannya dengan Ikan Karang di Perairan Karimunjawa dan Bali Ayu, Trifajriah Lutea; Munasik, Munasik; Trianto, Agus; Munru, Maestro
Jurnal Kelautan Tropis Vol 28, No 2 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i2.22473

Abstract

 This study aims to compare the ecological conditions of coral reefs and reef fish communities between the shallow waters of Karimunjawa, Jepara (Java Sea) and North Bali waters (Buleleng Regency). The research was conducted at 6 stations (2 stations in Karimunjawa and 4 stations in Bali) with different depths. The coral reef observation method used Underwater Photo Transect (UPT), while reef fish observation was conducted using the Underwater Visual Census (UVC) method. Results showed that coral reef conditions in general were not significantly different between locations. However, the abundance, biomass and biodiversity of reef fishes were significantly different between Karimunjawa and Bali. Further analysis showed that coral growth form (lifeform) was a strong predictor of reef fish community structure, and related to reef fish trophic groups (corallivores, herbivores and carnivores). The abundance and diversity of reef fish species were not only influenced by live coral cover, but also by the complexity of habitat structure. These findings highlight the importance of local oceanographic and topographic factors in supporting reef fish abundance and diversity. Penelitian ini bertujuan untuk membandingkan kondisi ekologi terumbu karang dan komunitas ikan karang antara perairan dangkal Karimunjawa, Jepara (Laut Jawa) dan perairan Bali Utara (Kabupaten Buleleng). Penelitian dilakukan pada 6 stasiun (2 stasiun di Karimunjawa dan 4 stasiun di Bali) dengan kedalaman yang berbeda. Metode pengamatan terumbu karang menggunakan Underwater Photo Transect (UPT), sementara pengamatan ikan karang dilakukan dengan metode Underwater Visual Census (UVC). Hasil menunjukkan bahwa kondisi terumbu karang secara umum tidak berbeda nyata antar lokasi. Namun, kelimpahan, biomassa dan biodiversitas ikan karang berbeda nyata antara Karimunjawa dan Bali. Analisis lebih lanjut menunjukkan bahwa bentuk pertumbuhan karang (lifeform) adalah prediktor kuat struktur komunitas ikan karang, dan berhubungan dengan kelompok trofik ikan karang (koralivora, herbivora dan karnivora) Kelimpahan dan keragaman jenis ikan karang tidak hanya dipengaruhi oleh tutupan karang hidup, tetapi juga oleh kompleksitas struktur habitat. Temuan ini menyoroti pentingnya faktor oseanografi lokal dan topografi dalam mendukung kelimpahan dan keanekaragaman jenis ikan karang.
Sipintar: A MOOC-Based Platform to Improve Reading Learning Outcomes Ardiansyah, Vendra; Hamzah, Syukri; Trianto, Agus
Script Journal: Journal of Linguistics and English Teaching Vol. 10 No. 1 (2025): April
Publisher : Teacher Training and Education Faculty, Widya Gama Mahakam Samarinda University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24903/sj.v10i1.1883

Abstract

Background: This study is motivated by the pressing challenge of improving reading skills among elementary school students in rural areas, particularly in Penukal Utara, where access to quality educational resources is limited. The aim of this research is to assess the effectiveness of the "Sipintar" MOOC-based platform in enhancing students' reading abilities, addressing a critical need in these underserved regions. Methodology: The study employed a quasi-experimental design, specifically a one-group pretest-posttest format. The sample comprised 72 fourth-grade students from four different elementary schools. Reading ability data was collected through standardized reading tests conducted both before and after the intervention, and the results were analyzed using paired t-tests to determine the significance of any improvements. Findings: The results demonstrated a significant enhancement in students' reading abilities following their use of the Sipintar platform. The majority of students exhibited marked progress, providing strong evidence of the platform’s efficacy in boosting reading performance among elementary students in rural settings.. Conclusion: The Sipintar platform has proven to be an effective tool for improving reading skills among elementary school students in Penukal Utara. Given its success, the platform holds promise for broader implementation in other remote regions facing similar challenges in access to quality educational materials. Originality: This study fills a critical gap by offering empirical evidence on the effectiveness of a MOOC-based platform for enhancing reading skills in rural areas, where educational resources are frequently inadequate.
Implementasi Literasi dalam Pembelajaran di Kelas V SD Negeri 1 Kota Bengkulu Twenty Agustiola, Agnes; Trianto, Agus; Ariesta, Ria
Jurnal Korpus Vol 9 No 2 (2025): Agustus 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/jik.v9i2.26277

Abstract

Abstract This study aims to determine the implementation of literacy in learning in class V SD Negeri 1 Bengkulu City. The method used in this research is descriptive method with a qualitative approach. The subjects in this study were teachers and students in VA and VB classes who were carrying out thematic learning. This study collected data using observation and recording techniques. Data collection techniques used observation and recording. The data analysis techniques used consisted of data reduction, data presentation and drawing conclusions. The results of this study indicate that the implementation of literacy in learning in class V SD Negeri 1 Bengkulu City has basic literacy, namely cultural and civic literacy, literacy, financial literacy, and scientific literacy. Teachers and students carry out language skills activities in the form of reading, writing, listening, speaking activities accompanied by thought processes (literacy). Implementation of literacy in learning in class V SD Negeri 1 Bengkulu City is still relatively low. The teacher not only guides and teaches students on cognitive abilities but fosters affective abilities from an early age in elementary school students.Keyword: the problematics of listening to drama, teaching and learning activities. Keyword: Implementation of Literacy, Basic Literacy, Language Acquisition  
Pembentukan Tim Pendamping Literasi Daerah dan Penguatan Literasi di Kabupaten Bengkulu Utara Gumono, Gumono; Sarwono, Sarwit; Yulistio, Didi; Trianto, Agus; Utomo, Bayu
Society : Jurnal Pengabdian Masyarakat Vol. 3 No. 2 (2024): Maret
Publisher : Edumedia Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55824/jpm.v3i2.392

Abstract

This activity aims to manifest Bengkulu University's participation in accelerating the increase in community literacy, especially in the District Bengkulu Utara, Bengkulu Province. Bearing in mind that the results of various surveys and evaluations of the GLN program in North Bengkulu show that the implementation of movement and literacy skills could have been better. This community service is conducted through counseling and focus group discussions to equalize perceptions and form a District Regional Literacy Assistance Team—North Bengkulu to share their role in making GLN a success. The activity was held on August 30, 2022, inviting the Regional Government/Regional Government, District Education Office, Regional Library and Archives Service, Regional Planning and Development Agency (Bappeda), Professional Organizations (MGMP), Academics, and Regional Policy Stakeholders. However, the only participants present were academics, teachers from MGMP elements, and the sub-district head. The analysis results show that strengthening literacy has not become a shared responsibility. Policymakers and stakeholders still think that strengthening literacy skills is the responsibility of schools (teachers) alone. TPLD has not been successfully formed for this activity because parties in the field of literacy have not fully attended it.
IMMUNOSTIMULATORY EFFECTS OF ULVAN ON TRYPSIN-MEDIATED PROTEIN DIGESTION IN THE GUT OF PACIFIC WHITELEG SHRIMP (Litopenaeus vannamei) Azhar, Nuril; Yudiati, Ervia; Ambariyanto, Ambariyanto; Alghazeer, Rabia; Trianto, Agus
Jurnal Riset Akuakultur Vol 19, No 1 (2024): (Maret 2024)
Publisher : Politeknik Kelautan dan Perikanan Jembrana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jra.19.1.2024.45-56

Abstract

Litopenaeus vannamei has emerged in the aquaculture industry. Production consistency, nutrition, and disease management play critical roles, particularly the digestive enzymes such as trypsin. This study assesses Ulvan, an immunostimulant from Ulva lactuca, on shrimp trypsin activity. Trypsin has been found to significantly enhance the activity of hemocyanin phenoloxidase, a crucial component of humoral immunity. This study aims to evaluate the potency of ulvan related to trypsin as an immunostimulant agent, extracted from Ulva sp.  Ulvan, extracted using various methods (P-HWE, O-HWE, P-A-HWE, and O-A-HWE), was evaluated using different doses of (0 g kg-1 (Control), 0.75 g kg-1 (ULV-0.75), 1.50 g kg-1 (ULV-1.50), and 3.00 g kg-1 (ULV-3.00) of feed). The O-A-HWE exhibited the fastest and highest increase in trypsin activity on day 4, surpassing the control on days 2, 3, 7, and 8. The P-HWE, O-HWE, and P-A-HWE also showed significant changes in trypsin activity compared to the control on specific days. Meanwhile, trypsin activity in Ulvan-fed shrimp did not significantly differ from the control on days 0 and 1. The differences emerged on day 2 and 3, notably between ULV-1.50 g kg−1 and ULV-0.75 g kg−1. The ULV-3.00 g kg−1 showed no significant difference from ULV-1.50 g kg−1. O-A-HWE demonstrated significant differences in trypsin activity compared to other Ulvan extracts, suggesting its potential to enhance shrimp health.Litopenaeus vannamei memiliki peran yang besar dalam industri akuakultur. Konsistensi dalam produksi, nutrisi, dan pengelolaan terhadap penyakit merupakan bagian yang sangat penting, terutama enzim pencernaan, di antaranya tripsin. Tripsin berfungsi untuk meningkatkan fenoloksidase hemosianin, yang peranannya penting untuk kekebalan. Studi ini mengevaluasi Ulvan, yaitu bahan yang bersifat imunostimulan dari Ulva sp., terhadap aktivitas tripsin udang. Ulvan, diekstraksi menggunakan berbagai metode (P-HWE, O-HWE, P-A-HWE, dan O-A-HWE), dievaluasi menggunakan perlakuan dosis yang berbeda (0 g kg-1 (Kontrol), 0,75 g kg-1 (ULV-0,75), 1,50 g kg-1 (ULV-1,50), dan 3,00 g kg-1 (ULV-3,00) pada pemeliharaan udang vaname selama 10 hari. O-A-HWE menunjukkan peningkatan aktivitas tripsin tercepat dan tertinggi pada hari ke-4, melebihi kontrol pada hari ke-2, 3, 7, dan 8. P-HWE, O-HWE, dan P-A-HWE juga menunjukkan perubahan signifikan dalam aktivitas tripsin dibandingkan dengan kontrol pada hari-hari tertentu. Sementara aktivitas tripsin dalam udang yang diberi Ulvan tidak berbeda secara signifikan dari kontrol pada hari ke-0 dan 1, perbedaan mulai terlihat pada hari ke-2 dan 3, terutama antara ULV-1,50 g kg−1 dan ULV-0,75 g kg−1. ULV-3,00 g kg−1 tidak menunjukkan perbedaan yang signifikan dari ULV-1,50 g kg−1. O-A-HWE menunjukkan perbedaan signifikan dalam aktivitas tripsin dibandingkan dengan ekstrak Ulvan lainnya, sehingga berpotensi dalam meningkatkan kesehatan udang.
Karakteristik hidrolisat kolagen kulit ikan tenggiri kering dengan enzim papain: The characteristics of spanish mackerel dry skin collagen hydrolisate with papain enzyme Rahmawati, Hafni; Agustini, Tri Winarni; Dewi, Eko Nurcahya; Trianto, Agus
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 27 No. 12 (2024): Jurnal Pengolahan Hasil Perikanan Indonesia 27(12)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v27i12.55831

Abstract

Spanish mackerel dried skin is commonly used in chips, crackers, and empek-empek products. However, its potential for transformation into value-added products such as collagen hydrolysate still needs to be explored. Processing this material using papain enzyme offers an efficient method to enhance its economic value, owing to its high yield and effectiveness. The aim of this study was to determine the optimum concentration of papain enzyme and soaking time for the hydrolysis of dried mackerel skin collagen based on the characteristics of dried mackerel skin collagen. This study applied a completely randomized design (CRD) with two factors: papain enzyme concentration (1% and 2%) and soaking time (12 and 24 h). The results indicated that the interaction between enzyme concentration and soaking time significantly affected key parameters, including hydrolysis degree, whiteness, protein content, viscosity, gel strength, melting point, solubility, and foaming ability, whereas yield, moisture, ash, fat, pH, and zeta potential were unaffected. Optimal conditions were achieved with 2% papain enzyme and 24-hour soaking time, resulting in a 2.30% yield, 35.62% hydrolysis degree, 77.73% white degree, 6.94% moisture, 1.44% ash, 95.35% protein, 2.33% lipid, 6,13cp viscosity, 46.64 gBloom gel strength, 14.67OC melting point, 5.83 pH, 2.47mV zeta potential, 82.00% solubility, and 31.67% foaming ability. These results highlight the significant potential of Spanish mackerel dried skin as a raw material for collagen hydrolysate production, supporting its application in developing high-value fishery by-products and promoting sustainable economic development.
Skrining Fitokimia dan Evaluasi Antioksidan serta Antibakteri Ekstrak Mangrove Asal Pantai Lampu Satu Nuskiya, Amila; Pringgenies, Delianis; Trianto, Agus
Jurnal Kelautan Tropis Vol 28, No 3 (2025): JURNAL KELAUTAN TROPIS
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jkt.v28i3.29937

Abstract

The mangrove ecosystem is characterized by high biodiversity and the production of various secondary metabolites with potential bioactive properties, making it a promising source of natural cosmetic ingredients. Phytochemical screening was carried out to detect the present of tannins, saponins, steroids, alkaloids, and flavonoids. Antibacterial activity was evaluated using disc diffusion method, while antioxidant activity was assessed through the DPPH assay. Seven species were identified in this study, namely Exoecaria agallocha, Laguncularia racemosa, Nypa fructicans, Bruguiera cylindrical, Amyema anisomeres, Ipomoea pes-caprae, and Acrostichum aureum. Phytochemical analysis revealed that saponins and tannins were present in most species, whereas alkaloids and flavonoids were specific to certain taxa. None of the tested extracts exhibited antibacterial activity against Eschericia coli. Antioxidant evaluation showed that Acrostichum aureum exhibited very strong activity (IC50 = 38,3 ppm), while Ipomoea pes-caprae and Laguncularia racemosa demonstrated strong antioxidant potential, and the remaining species ranged from weak to very weak activity. These findings indicate considerable variation in secondary metabolite composition and antioxidant capacity among mangrove species from Merauke, and suggest that Acrostichum aureum could serve as a promising natural source of antioxidants for the development of plant-based cosmetic formulations. Ekosistem mangrove memiliki keanekaragaman hayati tinggi dan menghasilkan berbagai metabolit sekunder dengan potensi bioaktif, menjadikannya sumber yang menjanjikan untuk bahan kosmetik alami. Uji fitokimia yang dilakukan adalah uji tanin, saponin, steroid, alkaloid dan flavonoid. Uji antibakteri dilakukan dengan metode difusi cakram serta uji antioksidan dengan metode DPPH. Hasil penelitian menunjukkan bahwa 7 spesies yang teridentifikasi meliputi Excoecaria agallocha, Laguncularia racemosa, Nypa fruticans, Bruguiera cylindrica, Amyema anisomeres, Ipomoea pes-caprae, dan Acrostichum aureum. Analisis fitokimia memperlihatkan bahwa saponin dan tanin banyak ditemukan pada sebagian besar spesies, sedangkan alkaloid dan flavonoid bersifat spesifik pada jenis tertentu. Seluruh spesies yang diuji tidak menunjukkan aktivitas antibakteri terhadap E. coli. Evaluasi antioksidan menunjukkan bahwa Acrostichum aureum memiliki aktivitas sangat kuat (IC₅₀ = 38,3 ppm), sementara Ipomoea pes-caprae dan Laguncularia racemosa menunjukkan aktivitas antioksidan kuat, dan spesies lainnya berkisar dari lemah hingga sangat lemah. Hasil ini menunjukkan adanya variasi kandungan metabolit sekunder dan kapasitas antioksidan antarspesies mangrove asal Merauke, serta mengindikasikan bahwa Acrostichum aureum berpotensi menjadi sumber antioksidan alami untuk pengembangan kosmetik berbasis bahan alam.
Co-Authors Agus Sabdono Akhmad Tri Prasetyo Aldi Nuary Nuary Alghazeer, Rabia Ali Djunaedi Ali Djunaedi Ali Djunaedi Ali Ridlo Amanda, Leony Chika Ambariyanto Ambariyanto , Ambariyanto Ambariyanto Andi Afriandi Andi Afriandi Andika, Reta Anggeraeni, Dwi Anicia Hurtado Aninditia Sabdaningsih Apriliani, Seka Indah ardiansyah, vendra Ariesta, Ria Arono Arono Ayu Charismawaty Ayu, Trifajriah Lutea Azhar, Nuril Azis Rifai Aziz Rifai Bahry, Muhammad Syaifudien Bayu Utomo Bimo Saskiaoktavian Carlos, Juan Catur Wulandari Christel Marty Dafa, Yori Hayyan Delianis Pringgenies Desi Anggraini Destio . Desy Wulan Triningsih Diah Permata Wijayanti Diah Permata Wijayanti Diana, Cris Dwi Haryanti Dwi Haryo Ismunarti Dwi Lestari Widya Ningsih Dwi Susilaningsih Eko Nurcahya Dewi Elfanando Rizky Juliantara Sucipto Elis Indrayanti Endang Supriyantini Endra Wijaya Ervia Yudiati Farrastasya Muflihul Azzami Fatra, Qalbita Fran Ciputra Tambunan Frans Alexander Nainggolan Gita Wismayanti Gumono Gumono, Gumono Hafni Rahmawati Hamzah, Syukri Haqqu, Alir Adn Humairah Arifia Sabiladiyni Irene Ulsadriatny Irwani Irwani Isai Yusidharta Ita Puspitasari Ita Widowati Jumarta, Rofi Jusup Supriyanto Jusup Supriyanto Kristi, Roselina Nadya Larasati, Stefanie Jessica Henny Lestari, Martini Tria Lilik Maslukah M. Arifin Ma'ruf, Widodo Farid Mada Triandala Sibero Mada Triandala Sibero Mahadika Fanindhita Sany McCauley, Erin Muhammad Arifin Muhammad S. Bahry Muhammad Syaifudien Bahry Muhammad Syaifudien Bahry Munasik Munasik Munru, Maestro Nafri Yanti Nathalie Bourgougnon Ni Komang Tri Utami Nining Nursalim Nugraha Ridho Ikhsani, Nugraha Ridho Nugroho Agus D Nugroho Hendartono Nugroho Hendartono Nur Taufiq-Spj Nuskiya, Amila Ocky Karna Radjasa Popi IL Ayer Purwadi, Agus Joko Puspitasari, Ita Putri, Dear Berliana Rachmat Afriyanto Raden Ario Radisya N Nissa Rahmaini, Putri Raja Aditia Sahala Siagian Retno Hartati Retno Murwani Rexie Magdugo Rizky Rifatma Jezzi Rohimat Rohimat Rosida, Nina Rudhi Pribadi Rudhi Pribadi Sabiladiyni, Humairah Arifia Sakti Imam Muchlisin Sari, Dian Lupita Sari, Else Puspita Sarwono, Sarwit Sekar Widyaningsih Sembiring, Yudhawira Bhaskara Septhy Kusuma Radjasa Shari, Vio Deswitha Shofiatun Nimah Sri Sedjati Subagiyo Subagiyo Sucipto, Elfanando Rizky Juliantara Susetyo Susetyo Tambunan, Fran Ciputra Taufiq-Spj, Nur Tri Winarni Agustini Twenty Agustiola, Agnes Ujiana, Rica Utomo, Padi Widianingsih Widianingsih Wiratno Wiratno Wisman Wismayanti, Gita Wittriansyah, Khoeruddin Yonnawati, Yonnawati Yudhawira Bhaskara Sembiring Yulistio, Didi