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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Jurnal Kesehatan Lingkungan indonesia Jurnal Ilmu Lingkungan Torani Journal of Fisheries and Marine Science Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Journal of Innovation and Applied Technology Research Journal of Life Science Journal of Environmental Engineering and Sustainable Technology Jurnal Kelautan Tropis JFMR (Journal of Fisheries and Marine Research) Omni-Akuatika JRST (Jurnal Riset Sains dan Teknologi) Indonesian Journal of Chemistry OLDI (Oseanologi dan Limnologi di Indonesia) Jurnal Perikanan Universitas Gadjah Mada Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) Indonesian Journal of Natural Pigments PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Musamus Fisheries and Marine Journal Jurnal Laot Ilmu Kelautan International Journal of Marine Engineering Innovation and Research Journal of Marine and Coastal Science Jurnal Pengabdian Masyarakat (ABDIRA) Jurnal Puruhita Environmental Pollution Journal Abdi Geomedisains Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Journal of Fisheries & Marine Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium Water and Marine Pollution Journal: PoluSea
Defri Yona
Universitas Brawijaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Analisis Indeks Kebersihan pada Pantai Wisata Terkelola dan Tidak Terkelola : Studi Kasus Pantai Kenjeran, Surabaya Sari, Syarifah Hikmah Julinda; Khuluq, Muhammaf Lathiful; Yona, Defri
Water and Marine Pollution Journal: PoluSea Vol. 4 No. 1 (2026): Water and Marine Pollution Journal: PoluSea April 2026
Publisher : Faculty of Fisheries and Marine Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.polusea.2026.004.01.2

Abstract

Pantai wisata rentan terhadap tekanan aktivitas antropogenik yang berkontribusi terhadap akumulasi sampah laut. Pantai Kenjeran, Surabaya, memiliki dua kawasan wisata dengan sistem pengelolaan berbeda, yaitu Taman Hiburan Pantai Kenjeran (THP Kenjeran) yang terkelola dan Pantai Kenjeran Taman Suroboyo (Pantai KTS) yang tidak terkelola. Penelitian ini bertujuan menganalisis karakteristik sampah laut dan membandingkan tingkat kebersihan pantai pada kedua kawasan tersebut. Metode purposive sampling diterapkan melalui penyisiran sampah pada zona backshore dan foreshore. Data jenis sampah dan indeks kebersihan pantai dianalisis secara deskriptif. Hasil penelitian menunjukkan jumlah sampah di pantai tidak terkelola lebih tinggi dibandingkan pantai terkelola, dengan dominasi sampah plastik dan karet. Nilai indeks kebersihan mengindikasikan THP Kenjeran tergolong bersih, sedangkan Pantai KTS tergolong kotor. Perlu adanya pengelolaan sampah terpadu dan pelibatan masyarakat untuk meningkatkan kebersihan pantai tidak terkelola.
Plastic debris characteristics and the effect of wind on Bawean Island Beaches, East Java, Indonesia Nurhafizh Sri Albarra; Defri Yona; Muhammad Arif Asadi; Syarifah Hikmah Julinda Sari; Riski Agung Lestariadi; Akhmad Amirudin
Depik Vol 13, No 3 (2024): DECEMBER 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.3.36620

Abstract

Characteristics of plastic debris were assessed among two types of beaches on Bawean Island (windward and leeward) to analyze its sources and long-term effects. Plastic debris was collected inside a 5 x 5 meter transect with five transect plots on each beach per 20 meters. Samplings were carried out three times at intervals of seven days from six different beaches. The average abundances of plastic debris were almost similar between leeward (0.1690.123 pcs m-2) and windward beaches (0.8410.577 pcs m-2). On the other hand, in terms of weight, leeward beaches contained a very low value of debris (0.9270.746 g m-2) compared to windward beaches (4.4793.551 g m-2). Sheets on the windward beaches and wholes on the leeward beaches dominate the shape of plastic debris with the average size was 1520 cm. The color on both type of beaches was dominated by white (38%) and blue (12%). The weathering intensity is 48% on the leeward beach and 52% on the windward beach. The absence of significant differences in size, color, and weathering intensity implies that the debris found came from the same source. The large size and low weathering intensity of the plastic debris means that the debris has not been exposed to hydro-oceanographic factors for an extended period and they came from a local source. The difference in abundance and shape of plastic debris suggests that wind still plays a vital role in shaping the characteristics of plastic debris on Bawean Island.Keywords:Marine DebrisPlastic WeatheringWind DirectionMarine PollutionMacroplastic
Pengelolaan Sampah Kelapa sebagai Penunjang Ekonomi Hijau Berkelanjutan di Desa Nelayan Kondang Merak, Kabupaten Malang Fahreza Okta Setyawan; Defri Yona; Sunardi Sunardi; Anatasya Alya Ariyanti; Chiara Dewi Nathania El Zam
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 6, No 3 (2026): Abdira
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v6i3.1673

Abstract

Kondangmerak Beach, Malang Regency, is a tourism and culinary destination, yet it suffers from accumulating young coconut shells that are littered or openly burned, degrading cleanliness and generating pollution and health risks. This community engagement program aimed to establish a circular-economy system that converts coconut-shell waste into charcoal as an alternative fuel for fishery-product processing with the Mina Jaya Mandiri group. We applied a problem–solution-fit approach combining social and technological interventions: hands-on tourism-awareness socialization and workshops, a stainless cart as a designated drop point, and a drum-based dryer with stainless racks powered by used oil. Performance was tracked using operational indicators: kilograms processed, drying time, charcoal substitution rate, and user feedback. Results show improved sorting compliance and a clearer collect–dry–store–use workflow, shorter drying lead time, more stable combustion readiness, reduced shell piles, and better fuel cost efficiency. The program shows appropriate technology and education can strengthen locally sustainable coastal livelihoods.
Structure of Mangrove and Associated Macrobenthos Communities Linked to Bioturbation Activities (Case Study: Northern Coast of East Java, Indonesia) Firdausi, Muhammad Azka Dzikri; Andristi, Adinda Martha Putri; Danendra, Hafiz Arya; Sari, Syarifah Hikmah Julinda; Saputra, Dhira Khurniawan; Yona, Defri
Journal of Tropical Life Science Vol. 16 No. 2 (2026)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.16.02.03

Abstract

Mangrove ecosystems and their associated macrobenthos interact closely through bioturbation, a key process that regulates sediment reworking, oxygen exchange, and nutrient cycling. This study examined how variations in mangrove and macrobenthos community structure relate to bioturbation among the studied mangrove ecosystems. Sampling was conducted across four mangrove ecosystems along the northern coast of East Java. A total of six mangrove species were recorded, dominated by Rhizophoraceae, along with 40 associated macrobenthos species dominated by Gastropoda and Malacostraca. Mangrove stand density ranged from 633.3 to 1300 ind/ha and did not differ significantly among sites, indicating relatively stable vegetation structure despite low diversity. Conversely, macrobenthos density varied significantly across sites, ranging from 7.44 to 26.56 ind/m². The macrobenthos community showed moderate diversity but generally reflected stable ecological conditions. Burrowing hole density differed significantly among sites, ranging from 34.11 to 70.44 holes/m², indicating spatial variation in potential bioturbation intensity. Correlation analysis revealed that Malacostraca abundance had the strongest relationship with burrow density, indicating a moderate positive association and highlighting the potential role of Malacostraca as the main contributors to bioturbation processes in mangrove ecosystems. Overall, this finding indicates that bioturbation potential does not depend on a single factor but rather arises from the interplay among vegetation structure, macrobenthos community composition, and environmental conditions. Maintaining habitat and ecosystem conditions is essential for supporting functionally important macrobenthos groups and sustaining sediment-related ecosystem processes. Conservation and restoration efforts should therefore consider both vegetation structure and associated faunal communities.
Abundance of microplastic in sediment around the west coast of Situbondo, East Java Defri Yona; Risda Ayu Nabila; Mochamad Arif Zainul Fuad; Feni Iranawati
Journal Omni-Akuatika Vol 19, No 2 (2023): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2023.19.2.1070

Abstract

Microplastic pollution has become a serious issue worldwide. Once it enters the environment, microplastics could accumulate in the water column and sediment. This study aimed to analyze the occurrence of microplastics in the beach sediments along the western coast of Situbondo, East Java. Sediment samples were collected in the strandline areas from seven different beaches that received the high impact of human activities. In the laboratory, sediment samples were oven-dried and weighed, density separation was performed using NaCl solution, degradation of organic matter was conducted using H2O2 30% and microplastic particles were identified using a microscope. In total, 1041 microplastic particles were retrieved from 21 sediment samples consisting of fiber (50 %), fragment (37 %), microbeads (11 %), and film (2 %). Microplastics found in this study consists of blue color (49 %), red (26 %), white (11 %), brown (7 %), and other colors such as yellow, black, green, and transparent with a percentage between 1?3 %. Microplastics with a size of < 300 µm dominate the result of this study. Microplastic abundances were found in the range of 204.52?492.50 particles/kg sediment sample. In each sampling location, the types of microplastic were found in a different pattern. Fiber and fragments were found in all sampling sites, while film and microbeads were found only in specific sites. This study showed that several factors, such as plastic sources and hydro-oceanography parameters, influenced the occurrence of microplastics in the sampling sites. In order to address microplastic pollution in the marine environment, plastic waste management strategies are required.Keywords: Fishing port, Mangrove, Marine Pollution, Plastics, Tourism
Co-Authors A'yun, Qurrota Abdullah Hamid Ade Yamindago Adi, M Arif As' Adrian Sakti Gangsar Pinilih Agung Yunanto Agung Yunanto Agung Yunanto Agung Yunanto Aida Sartimbul Aini, Misba Nur Akhmad Amirudin Anatasya Alya Ariyanti Andik Isdianto Andira, Andira Andristi, Adinda Martha Putri Anggara, Arik Ardelia Annisa Larasati Ardelia Annisa Larasati, Ardelia Annisa Arifianti, Dwi Nurjanatin Arisanti, Gitri Asih Fitriana Dewi Asri asri Atsuhiko Isobe Atsuhiko Isobe Avisina, Achmadika Ayuingtyas, Wulan Cahya Bambang Semedi Basutikto, Gibran Aji Bernads Daniel Marolop Siagian Billy Arif Mahendra Carina Daisy Samantha Chiara Dewi Nathania El Zam Citra Satrya Utama Dewi Cordova, M. Reza Danendra, Hafiz Arya Danu Setia Wardana Dara Sarasita Dara Sarasita David Vernandes Desy Setyoningrum Dewi, Citra Satrya Utama Dharmawan, I Wayan Eka Dhira Kurniawan Dian Aliviyanti Diana Ningrum, Diana Dwi Candra Pratiwi Dwi Candra Pratiwi Dwi Setijawati Dyah Ajeng Pitaloka Effendy, Citra Ravena Putri Eko Sulkhani Yulianto Elvania, Yuyun Emmanuel Manangkalangi Erfan Rohadi Evitantri, Mangesti Reza Fadhilah Aisyah di Prikah Farhaninur, Amalia Izzy Feni Iranawati Feni Iranawati, Feni Fikri, Maulana Firdaus, Naufal Firdausi, Muhammad Azka Dzikri Fuad, M. Arif Zainul Fuad, M.Arif Zainul Fuad, Mochamad Arif Zainul Fuad, Muhammad Arif Zainul Gde Raka Angga Kartika Guntur Hendiari, I Gusti Ayu Diah Hidayat, Esa Fajar Hidayati, Nurin Hikmah Farda Awaliyah Hutauruk, Immanuel Valentino I Wayan Arthana Idris, Arief Iis Nur Rodliyah, M.Ed Indriani, . Irfan Naufal Amar Julianinda, Yanida Azhari Junika Chintia Ayu Putri Kartikaningsih, Hartati Kharisma Wisnu Sesanty Khuluq, Muhammaf Lathiful Kretarta, Anedathama Ledhyane Ika Harlyan Luky Sembel Maghfira Shafazamilla Mauludy Maharani, Mela Dita Maheswari, Maretha Dewi Mangesti Reza Evitantri Maulidiyah, Rizqi Aimmatul Mela Dita Maharani Mochamad Arif Zainul Fuad Mochamad Arif Zainul Fuas Mohammad Arif Asadi Muh. Arif Rahman Muhammad Arif Asadi Muhammad Arif Asadi, Muhammad Arif Muhammad Arif As’adi Muhammad Ariq Kautsar Muhammad Fathur Rayyan Muhammad Mahmudi Mulyanto, Febri Dwi Nabilah, Mariah Nevandra, Adinda Prameswari Aisyah Nor, Hazimah Binte Mohamed Nurhafizh Sri Albarra Nurin Hidayati Nurin Hidayati Nurin Hidayati Nurin Hidayati Nurin Hidayati Nurul Muslihah Oktiyas Muzaky Lutfi Park, Mi Ok Philipus Musyeri Priyanka Mondal Puji Hastuti Putri, Anggi Andrianah Putri, Yandini Eka R Rachmawati Rachmawati Rachmawati Rafika Devi Agustin Rahman, M. Arif Rahmawati, Andira Rakhmawan, Hilal ramadhan, firman Rarasrum Dyah Kasitowati Rarasrum Dyah Kasitowati Rarasrum Dyah Kasitowati, Rarasrum Dyah Rayyan, Muhammad Fathur Risda Ayu Nabila Riski Agung Lestariadi Risqi, Mohammad Aditya Rudianto Rudianto Rudianto Rumantya, Matthew Adi Bekti Safitri Widya Ningtias Samuel, Pratama Diffi Saputra, Dhira Kurniawan Sarasita, Dara Seftiawan Samsu Rijal, Seftiawan Samsu Setyawan, Fahreza Okta Siburian, Andreas Steve Jonathan Sisylia Eka Narriyah Putri Siti Nur Khabibah Sudono, Chynta Veyra Aulia Sunardi Sunardi Susanto, Raden Dwi Syahrir, Ahdiya Syamsuddin, Maura Fayza Dwinanda Syananta, Citra Syarifah Hikmah Julinda Sari Tobing, Michael Tosi Lumban Tsania Humairoh Vidayanti, Viky Wahyudi, Aan J. Wahyudi, Angger Dwiky Widodo S Pranowo Winata, Victor Adi Wirdana, Nurmalisa Wulan Cahya Ayuingtyas Yanida Azhari Julianinda Yanuar, Adi Tiya Yenny Risjani Yunanto, Agung Yuniar Ponco Prananto Yusril Zaqi Ubaydillah Yusrina Rizqi Amalia Zefanya Nandaningtyas