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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Jurnal Perikanan dan Kelautan The Journal of Experimental Life Sciences (JELS) Research Journal of Life Science Journal of Environmental Engineering and Sustainable Technology Jurnal Pembangunan dan Alam Lestari ECSOFiM (Economic and Social of Fisheries and Marine Journal) Geo-Image Journal JFMR (Journal of Fisheries and Marine Research) Jurnal Penelitian Pendidikan IPA (JPPIPA) International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal Penyuluhan Perikanan dan Kelautan Soeropati: Journal of Community Service Abdi Geomedisains Jurnal Manusia dan Lingkungan Wisesa: Jurnal Pengabdian Masyarakat Journal of Fisheries & Marine Jurnal Perikanan dan Kelautan Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium
Bambang Semedi
Department Of Marine Science, Faculty Of Fisheries And Marine Sciences, Universitas Brawijaya
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Social Sciences Other

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Heavy Metal Copper (Cu) Distribution in Water and Its Bioaccumulation in Green Mussel (Perna viridis) in Coastal Area of Ujung Pangkah, Gresik District Qodri Fitra, Mohammad; Arfiati, Diana; Semedi, Bambang
The Journal of Experimental Life Science Vol. 8 No. 2 (2018)
Publisher : Graduate School, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1171.444 KB) | DOI: 10.21776/ub.jels.2018.008.02.07

Abstract

Environmental pollution in the form of increased concentration of heavy metal Copper (Cu) becomes the main factor that can affect water quality and inhibit green mussel culture (Perna viridis) in Ujung Pangkah Coastal Area of Gresik District. The purpose of this research is to analyze concentration of heavy metal Copper (Cu) on water and its bioaccumulation in green mussel (P. viridis) in Ujung Pangkah waters, Gresik District. This research will be conducted from June to August 2017. The method used in this research is descriptive method. Sampling of seawater and mussel by purposive sampling. Cu heavy metal content in Ujung Pangkah waters, Gresik District has 0.003 - 0.006 ppm in July and 0.002 - 0.006 ppm in August. That value is still safe below predetermined quality standards. The results of heavy metal measurement test in shellfish has 0.159 to 0.69 ppm in July and 0.162 - 0.71 ppm in August. The high concentrations of Cu heavy metals in Ujung Pangkah waters are simultaneous to the bioaccumulation concentration in the green mussel. The higher concentration in the waters, the higher the bioaccumulation in the green mussels. And vice versa. The distribution of Cu heavy metal concentration at point 4 is the highest. While at point 1 has the lowest Cu heavy metal concentration. Keywords: Copper, Bioaccumulation, Green Mussel, Heavy Metal, Perna viridis.
Analisis Akurasi Data Batimetri Single Beam Echosounder System (SBES) dan Satellite Derived Bathymetry (SDB) (Studi Kasus Perairan Kabupaten Cilacap, Jawa Tengah): Accuracy Analysis of Single Beam Echosounder System (SBES) and Satellite Derived Bathymetry (SDB) Data (Cased Study the Waters of Cilacap Regency, Central Java) Setyawan, Fahreza Okta; Rahman, Alham Danendra; Hidayati, Nurin; Fuad, Mochamad Arif Zainul; Semedi, Bambang; Setyoningrum, Desy
JFMR-Journal of Fisheries and Marine Research Vol. 10 No. 1 (2026): JFMR on March
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2026.010.01.4

Abstract

Hidrografi dan batimetri menyediakan informasi kedalaman dan bentuk dasar perairan yang sangat penting bagi navigasi, perencanaan pelabuhan, rekayasa pantai, dan tata ruang laut, terutama pada perairan dinamis dan keruh seperti Kabupaten Cilacap yang berbatasan langsung dengan Samudera Hindia. Penelitian ini bertujuan menganalisis akurasi data batimetri Satellite Derived Bathymetry (SDB) berbasis citra PlanetScope beresolusi tinggi dan membandingkannya dengan hasil pemeruman Single Beam Echosounder System (SBES). Data SBES dikumpulkan menggunakan Garmin 585 C, sedangkan kedalaman SDB diekstraksi dengan algoritma machine learning Generalized Additive Model (GAM). Data dibagi 75% untuk training dan 25% untuk testing, dan kinerja model dinilai menggunakan koefisien determinasi (R²) dan Root Mean Square Error (RMSE). Pengolahan data didukung perangkat lunak SIG dan penginderaan jauh seperti ArcMap, SNAP, ENVI, Global Mapper, RStudio, dan Surfer. Hasil menunjukkan SBES memiliki akurasi tinggi dan tetap menjadi rujukan utama pemetaan dasar perairan Cilacap. Sebaliknya, model SDB–GAM menghasilkan R² sebesar 0,35 dan RMSE 2,80 sehingga belum mampu merepresentasikan variasi kedalaman pada perairan. Nilai ini rendah karena perairan Cilacap yang keruh serta keberadaan sunglint pada citra menyebabkan distorsi reflektansi sehingga kedalaman hasil SDB sulit merepresentasikan variasi kedalaman aktual. Oleh karena itu, SDB – GAM belum direkomendasikan untuk pemetaan operasional di perairan keruh seperti Cilacap tanpa koreksi glint dan peningkatan strategi pemodelan, serta lebih tepat digunakan sebagai pemetaan awal pada kondisi perairan yang lebih jernih dan kedalaman terbatas.   Hydrography and bathymetry provide information on water depth and seabed morphology that is crucial for navigation, port planning, coastal engineering, and marine spatial planning, especially in dynamic and turbid waters such as Cilacap Regency, which borders directly with the Indian Ocean. This study aims to analyze the accuracy of bathymetric data Satellite Derived Bathymetry (SDB) derived from high-resolution PlanetScope imagery and compare it with obtained from Single Beam Echosounder System (SBES) sounding. SBES data were collected using a Garmin 585 C, while SDB depths were extracted using the Generalized Additive Model (GAM) machine learning algorithm. Data were split into 75% for training and 25% for testing, and model performance was evaluated using the coefficient of determination (R²) and Root Mean Square Error (RMSE). Data processing was supported by GIS and remote sensing software such as ArcMap, SNAP, ENVI, Global Mapper, RStudio, and Surfer. The results show that SBES provides high accuracy and remains the primary reference for seabed mapping in Cilacap waters. Conversely, the SDB–GAM model produces an R² of 0.35 and an RMSE of 2.80, indicating that it has not yet adequately represented depth variability in waters. This value is low because the murky waters of Cilacap and the presence of sunglint in the image cause reflectance distortion, making it difficult for the SDB results to represent actual depth variatons. Therefore, SDB-GAM is not yet recommended for operational mapping in murky waters such as Cilacap without glint correction and improved modeling strategies, and is more appropriately used for initial mapping in clearer waters and limited depths.
Effectiveness and Spatial Distribution of Wastewater Land Application Technical Approval in East Java Hakasmanti, Erika; Semedi, Bambang; Hardjoko, Arief Tri; Koentjoro, Maharani Pertiwi; Supriyadi, Supriyadi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 23, No 1 (2026): March 2026
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v23i1.158-174

Abstract

The management of industrial wastewater presents a considerable challenge to governments globally, mainly because of the difficulties faced in ensuring that regulatory frameworks are properly instituted. This study evaluated the success of the technical approval for using wastewater" regulatory framework and its geographic spread across East Java. This was evaluated using data from 35 business participants from 16 different districts/cities via a combination of quantitative (survey) and qualitative (spatial analysis) methods. The overall effectiveness of the regulatory framework was rated high (84.69%), with the dimension "Regulatory Appropriateness" rated the highest (85.57%), while the dimension "Environmental Appropriateness" ranked the lowest (84.14%). From the geographic analysis, it was evident that cities and industrial centers dominated the level of support, with many non-industrial areas displaying very little engagement. Collectively, these results demonstrate the need for policies to be designed with a geographic perspective and for sufficient institutional support to be targeted towards non-urban areas. This will allow stakeholders to provide the required technical support, increase the utilization of technology to enhance service delivery, and engage the local workforce to the greatest degree possible to enable sustainable and equitable environmental governance.
Evaluation of Sustainable Tourism of Pacal Reservoir Based on Environment, Economic and Social Perspectives in Bojonegoro Regency Yuli Anita; Bambang Semedi; Ratno Bagus Edy Wibowo; Bunga Hidayati
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.10327

Abstract

Pacal Reservoir has a function to irrigate agriculture in the Bojonegoro Regency area. Pacal Reservoir also has beautiful natural potential so that it is used as a mainstay tourism object of Bojonegoro Regency. The existence of the reservoir that has been for 90 years, makes the pacal reservoir experience several problems. The purpose of this study is to analyze pacal reservoir tourism into sustainable tourism. The method used is qualitative descriptive. The analysis used is a SWOT analysis. The results of the SWOT analysis are at the coordinate point (0.37; 0.28) where the coordinate point is in quadrant I. So that pacal reservoir tourism has opportunities and strengths, namely in that position is the most advantageous situation. Based on this study, it can be concluded that the results of the SWOT matrix produce several strategies when viewed in terms of environmental, social and economic tourism of the pacal reservoir. The result of the SWOT coordinate point is in quadrant I. Position in quadrant I means having opportunity and strength. The strategy that must be taken in conditions like this is to support an aggressive growth-oriented strategy by utilizing existing opportunities and strengths possessed.
OPTIMALISASI POTENSI WISATA BAHARI DAN KONSERVASI ALAM UNTUK PENGEMBANGAN EKOWISATA DI DESA SIDOASRI, MALANG SELATAN: ENHANCING MARINE TOURISM AND NATURE CONSERVATION FOR SUSTAINABLE ECOTOURISM DEVELOPMENT IN SIDOASRI VILLAGE, MALANG Hidayati, Nurin; Rudianto; Sartimbul, Aida; Semedi, Bambang; Iranawati, Feni; Yona, Defri; Sari, Syarifah Hikmah Julinda; Setyawan, Fahreza Okta; Setyoningrum, Desy; Hidayat, Esa Fajar
Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium Vol. 4 No. 1 (2026): Jurnal Pengabdian Perikanan dan Kelautan: Piskarias Ministerium pada Bulan Juni
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

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

Abstract

Desa Sidoasri merupakan desa pesisir di Kabupaten Malang dengan potensi wisata bahari yang besar, didukung oleh keberadaan Pantai Perawan, Teluk Klatakan, ekosistem terumbu karang, hutan mangrove, serta keanekaragaman biota laut. Namun, potensi tersebut belum dimanfaatkan secara optimal akibat terbatasnya promosi, rendahnya keterlibatan masyarakat, serta belum tersedianya media edukasi dan perencanaan pengembangan berbasis konservasi. Kegiatan Pengabdian kepada Masyarakat Dosen FPIK Universitas Brawijaya Tahun 2025 bertujuan mengoptimalkan potensi wisata bahari dan konservasi alam sebagai dasar pengembangan ekowisata berkelanjutan di Desa Sidoasri. Metode pelaksanaan meliputi identifikasi dan pemetaan potensi melalui observasi lapangan, dokumentasi, dan kajian aspek alam, budaya, serta daya tarik lokal. Kegiatan dilanjutkan dengan pelatihan ekowisata bahari, Focus Group Discussion (FGD), hibah buku karya dosen kepada Pemerintah Desa Sidoasri serta penyusunan buku Eksplorasi Wisata Bahari dan Konservasi Alam di Desa Sidoasri sebagai media edukasi dan promosi. Hasil kegiatan menunjukkan bahwa Desa Sidoasri memiliki potensi ekowisata yang beragam dan layak dikembangkan melalui pendekatan konservasi. Pelaksanaan pelatihan dan FGD meningkatkan pemahaman masyarakat mengenai pengelolaan wisata berbasis konservasi sekaligus menghasilkan rekomendasi pengembangan desa wisata yang lebih partisipatif. Selain itu, tersusunnya buku eksplorasi wisata dan hibah buku dosen menjadi luaran yang mendukung penyebarluasan informasi, edukasi lingkungan, dan promosi destinasi wisata. Secara keseluruhan, program pengabdian ini menghasilkan identifikasi potensi wisata, peningkatan kapasitas masyarakat, media edukasi, serta rekomendasi pengembangan sebagai landasan mewujudkan Desa Sidoasri sebagai desa ekowisata bahari berbasis konservasi alam yang berkelanjutan.   Sidoasri Village is a coastal village in Malang Regency with great marine tourism potential, supported by the presence of Perawan Beach, Klatakan Bay, coral reef ecosystems, mangrove forests, and diverse marine biota. However, this potential has not been optimally utilized due to limited promotion, low community involvement, and the unavailability of educational media and conservation-based development planning. The 2025 Community Service Program conducted by the Faculty of Fisheries and Marine Sciences, Universitas Brawijaya, aimed to optimize the potential of marine tourism and nature conservation as a basis for developing sustainable ecotourism in Sidoasri Village. The program was implemented through the identification and mapping of tourism potential using field observations, documentation, and assessments of natural, cultural, and local tourism attractions. The activities also included marine ecotourism training, Focus Group Discussions (FGDs), a grant of faculty-authored books to the Sidoasri Village Government, and the compilation of the book Exploration of Marine Tourism and Nature Conservation in Sidoasri Village as an educational and promotional resource. The results indicated that Sidoasri Village has diverse ecotourism potential that is feasible for development through a conservation approach. The training sessions and FGDs enhanced community understanding of conservation-based tourism management and generated recommendations for more participatory tourism village development. Furthermore, the publication of the tourism exploration book and the grant of faculty-authored books contributed to information dissemination, environmental education, and tourism promotion. Overall, the community service program successfully identified tourism potential, strengthened community capacity, developed educational resources, and produced strategic recommendations as the foundation for establishing Sidoasri Village as a sustainable conservation-based marine ecotourism destination.
Estimating urban air pollution from motor vehicle emissions using ALPR: A case study in Malang City, Indonesia Sayono, Fajar Izzatunnimah; Semedi, Bambang; Setiawan, Raden Arief; Widyaningsih, Galih Edy Nur
Jurnal Pembangunan dan Alam Lestari Vol. 17 No. 2 (2026): Jurnal Pembangunan dan Alam Lestari
Publisher : Graduate School of Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2026.017.02.03

Abstract

Urban air quality is increasingly influenced by motor vehicle emissions, particularly in rapidly developing cities such as Malang, Indonesia. This study aims to quantify the contribution of motorized vehicles to urban air pollution by integrating Automatic License Plate Recognition (ALPR) technology with national emission factor standards. Traffic data were collected across several major urban road corridors in Malang City, representing both peak and non-peak traffic conditions. Detected vehicle types were subsequently reclassified in accordance with the Ministry of Environment Regulation No. 12 of 2010 to ensure consistency and accuracy in emission estimation. Emissions of key pollutants, including carbon monoxide (CO), nitrogen oxides (NO?), particulate matter (PM??), and sulfur dioxide (SO?), were estimated using a Tier 1 emission calculation approach. The results indicate that average daily CO emissions reached approximately 1,315 kg/day, with peak levels exceeding 1,450 kg/day during high-traffic weekdays. Similar trends were observed for other pollutants, reflecting strong correlations between traffic density and emission intensity. Motorcycles were identified as the largest contributors to total emissions across all measured pollutants, primarily because of their dominant share of daily traffic volume. These findings highlight the urgent need for targeted emission control policies that focus on high-frequency vehicle categories, especially two-wheelers. In addition, strategies such as improved traffic management, stricter emission standards, and enhanced fuel quality are essential to mitigate urban air pollution. Overall, this study provides empirical evidence to support more effective and sustainable urban air quality management policies in rapidly growing cities.
TEMPORAL ANALYSIS OF RIVER WATER QUALITY USING POLLUTION INDEX: A CASE STUDY OF THE REJOSO RIVER, PASURUAN REGENCY Yanitra, Fahmi Alpha; Semedi, Bambang; Anggayasti, Wresti Listu; Dewi, Juwita Ratna
Journal of Environmental Engineering and Sustainable Technology Vol. 12 No. 2 (2025)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/

Abstract

Assessing temporal variations in river water quality is essential for understanding pollution dynamics and supporting effective water resource management, particularly in regions experiencing increasing anthropogenic pressure. This study investigates temporal trends in the Rejoso River, Pasuruan Regency, East Java, during 2022–2025 using the Pollution Index (PI) method. Water quality data were obtained from routine monitoring by the Environmental Agency and analyzed through compliance assessment, spatial distribution analysis, and non-parametric statistical methods, including the Mann–Kendall test and Sen’s slope estimator. The results show that several parameters, particularly biochemical oxygen demand (BOD), phosphate, and fecal coliform, frequently exceeded Class II water quality standards, indicating dominant organic and domestic pollution sources. Spatially, water quality declined from upstream to downstream, with the middle section identified as the most polluted due to cumulative anthropogenic activities such as domestic discharge and agricultural runoff. Temporal analysis revealed increasing trends in key pollution indicators, especially BOD and COD, suggesting a gradual increase in pollutant loads. The Pollution Index classified the river as predominantly lightly polluted, with a temporary improvement in 2024 followed by deterioration in 2025. These findings highlight increasing environmental pressure and the need for integrated water quality management strategies.
Co-Authors Abdul Qadir Jailani Abdul Qadir Jailani, Abdul Qadir Abu Bakar Sambah, Abu Bakar Adriani Sunuddin Agatha, Laily Septiani Aida Sartimbul Alim, Dimas Syarif Aliviyanti, Dian Amin Setyo Leksono Aminudin Afandhi Aminudin Afandhi Andik Isdianto Anggayasti, Wresti Listu Arief Darmawan Arief Rachmansyah Arviani, Dhika Anggi As'adi, Muhammad Arif Azura Ulfa, Azura Bagyo Yanuwiadi Bagyo Yanuwiadi Bayuaji, Gerardus David Ady Purnama Bunga Hidayati Citra Satrya Utama Dewi Daduk Setyohadi David Ady Purnama Bayuaji, Gerardus Defri Yona Dewa Gede Raka Wiadnya Dewi Safitri Syam’s, Nova Dewi, Citra Satrya Utama Dewi, Setya Nuri Fatma Dhika Anggi Arviani Diana Arfiati Dirman, Eris Nur Diza, Novia Fara Endang Yuli Herawati Fadli, Moh. Faiqoh Hikmawati , Viona Faisal Akmal, Faisal Fara Diza, Novia Fathah, Aulia Lanudia Fatimah A., Putri Dila Nur Feni Iranawati, Feni Fikri Hardiansyah Fikri Hardiansyah Fuad, Mochamad Arif Zainul Gala Kurnia Handawijaya Gatot Ciptadi Hagus Tarno Hakasmanti, Erika Handawijaya, Gala Kurnia Hardiansyah, Fikri Hardjoko, Arief Tri Hardoko . Hardoko Hardoko Hardoko Hardoko Harry Irawan Johari Harsuko Riniwati Herandarudewi, Sekar Mira Hidayat, Esa Fajar Hidayati, Nurin Hikmawati, Viona Faiqoh ISWAHYUDI ISWAHYUDI Juwita Ratna Dewi Laily Septiani Agatha Ledhyane Ika Harlyan Lee, Ming-An Luh Eka Savitri, Ni Lutfi, Oktyas Muzaky Maharani Pertiwi Koentjoro Mandhalika, Vianta Marjono Marjono Marjono Marjono, Marjono Melati Julia Rahma Mimit - Primyastanto Mochamad Arif Zainul Fuad Mochamad Arif Zainul Fuad Mohammad Arif Asadi Mohammad Fadli Mohammad Mahmudi Muhamad Firdaus Muliawati Handayani Novia Fara Diza Nuddin Harahab Nur Maulida Safitri Oktiyas Muzaky Lutfi oktiyas muzaky Luthfi, oktiyas muzaky Parmawati, Rita Putri Dila Nur Fatimah A. Putri Dila Nur Fatimah Afionita Qodri Fitra, Mohammad Qomariyatus Sholihah Raden Arief Setiawan, Raden Arief Rahman, Alham Danendra Rahman, Muhammad Arif Rarasrum Dyah Kasitowati Rarasrum Dyah Kasitowati, Rarasrum Dyah Ratno Bagus Edy Wibowo Rita Parmawati Rudianto Rudianto Rudianto Safitri, Ni Luh Eka Saputra, Dhira Kurniawan Sayono, Fajar Izzatunnimah Seftiawan Samsu Rijal Seftiawan Samsu Rijal, Seftiawan Samsu Setya Nuri Fatma Dewi Setya Nuri Fatma Dewi Setyawan, Fahreza Okta Setyoningrum, Desy Slamet Wahyudi Solimun, Solimun Sukandar Sukandar Sukuryadi Sulastri Arsad Supriyadi Supriyadi Syam's, Nova Dewi Safitri Syarifah Hikmah Julinda Sari Syukron B, Alif Rofiq Tri Djoko Lelono Tri Furi Megawati Wardana, Fitri Candra Wiadnya , Dewa Gede Raka Widagdo, Supriyatno WIDYANINGSIH, GALIH EDY NUR Wijaya, Aphrodita Shelbyla Wirastika Adhihapsari Yanitra, Fahmi Alpha Yuli Anita