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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
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.
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 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 Hidayati, Nurin Hikmawati, Viona Faiqoh ISWAHYUDI ISWAHYUDI 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 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 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, 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 Wijaya, Aphrodita Shelbyla Wirastika Adhihapsari Yuli Anita