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Distribution of heavy metal (Pb, Cd and Hg) concentrations in sediment of Bone River, Gorontalo Miftahul Khair Kadim; Endang Herawati Yuli; Diana Arfiati; Asus Maizar Suryanto Hertika; Faizal Kasim
Depik Vol 11, No 3 (2022): DECEMBER 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.3.27775

Abstract

The concentration of three heavy metals Pb, Cd and Hg ware measured in Bone River, Gorontalo sediment. The heavy metal pollution on sediment in Bone River have not been explored longitudinally. The samples were taken in July 2021 at 8 stations. The trend of metals ware observed in sediment as PbCdHg. The level of studied metals Cd and Hg did not exceed the safe limit by ANZECC, OSQG LEL and CCME TEL meanwhile Pb was met the limit by by ANZECC. However, the investigated showed that fluctuations due to differences in the characteristics of each location. Contamination factor (CF) and geoaccumulation index (Igeo) demonstrated that the sediment samples were low contamination and lightly polluted. Contamination by heavy metals in the Bone River implies that the conditions are much frightening for the biota and residents around the river.
Predicting Habitat Suitability of Mahseer Fish (Tor spp.) in Tropical River Systems Using MaxEnt and Google Earth Engine: A Geospatial Modeling Approach Jefri Permadi; Nia Kurniawan; Diana Arfiati; Agung Pramana Warih Marhendra
Advance Sustainable Science Engineering and Technology Vol. 7 No. 3 (2025): May - July
Publisher : Science and Technology Research Centre Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/asset.v7i3.2201

Abstract

Rivers are vital freshwater habitats that face threats of degradation and climate change. Mahseer fish, a key species, is in decline. This study predicted Mahseer fish habitats in Central Java using the Google Earth Engine and the MaxEnt machine learning algorithm. Environmental predictors, including NDVI, elevation, slope, river order, temperature, and rainfall, were extracted from Sentinel, SRTM, MODIS, and CHIRPS data. The model identified river order as the most influential variable (73%), followed by elevation (18%) and rainfall (8%), with an AUC score of 0.7, indicating fair accuracy. Suitable habitats were located in upstream river orders (1–3), typically at higher elevations. These findings provide spatial guidance for conservation planning, such as identifying critical habitats, prioritizing upstream areas, and establishing seasonal fishing ban. This approach supports biodiversity protection and aligns with the Sustainable Development Goals by offering a scalable tool for freshwater ecosystem management. Using MaxEnt with GEE shows promise for rapid, and cost-effective species distribution modeling in data-limited tropical regions.
Co-Authors Abdul Rahem Faqih Abdul Wafi Abimanyu Bayu Saputra Adita Ramadanti Afella Osa Agnes Khofiffah Agung Pramana Warih Marhendra Aida Sartimbul Aisyah, Fidhiyah Dita Dahria Aisyah, Jumrotul Alfarisi, Muhammad Asnin Alvateha, Dini Amin Leksono Aminin, Aminin Aminuddin Firdaus Andi Kurniawan Andi Masriah Aniek Masrevaniah Aniek Masrevaniah Anjasmara, Aang Setyawan Anna Catharina Sri Purna Suswati Anugerah, Putri Anwari, Zaki Apriliyanti, Fisma Josara Arning Wilujeng Ekawati Arning Wilujeng Ekawati Asus Maizar Suryanto H Athaillah Mursyid Athaillah Mursyid Audina I. Pratiwi Baghaz Dzulhamdhani Surya Putra, Renanda Bagyo Yanuwiadi Bambang Semedi Cahya, Muhamad Dwi Cakrawira Gundo Catur Budi Noviya Chandika Lestariaji Chandika Lestariaji Dewi Nur Setyorini Dian Vidiastuti Diana Putri Renitasari Dina, Karina Farkha Dini Alvateha Dyah Tri Rahayu Ekki Windi Endang Yuli Herawati Endang Yuli Herawati Ertikasari, Nuning Evellin Dewi Lusiana Evellin Dewi Lusiana, Evellin Dewi Evi Veronica Faizal Kasim Feni Iranawati Fidhiyah Dita Dahria Aisyah Firdaus, Aminuddin Fresty Esmi Samber Gayatri, Alifia Gumelar, Agum Bayu Gunawan Wibisono Guntur Guntur Hadi Nur Rohman Hadiana, Hadiana Happy Nursyam Heri Ariadi Hu, Shao-Yang Huda, Alif Raditya Amirul Inayah, Zakiyyah Nur Irawati Mei Widiastuti Irsyah Rahmi Jefri Permadi Karimah Karimah Kharisma Orchida Khofiffah, Agnes Kurnianingsih, Asmiyati Kusriani Kusriani Lailiyah, Shofiatul Lazimatun Nazifah Ledhyane Ika Harlyan Listiya Gita Lesmana Loka, Widi Ayom Maharani, Patricia Dita Maheno Sri Widodo, Maheno Sri Marsoedi Marsoedi Marsoedi Marsoedi Maulidiyah, Vika Mazaya, Amalia Febryane Adhani Miftahul Khair Kadim Mochammad Sholichin Mohammad Mahmudi Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Musa Muhammad Musa Muhklas Shah Winarno Mulyanto Mulyanto Murni, Lini Mutia Nur Hayati Nadiro, Vina Nur Nanik Retno Buwono Neni Diah Kusumaning Arum Nia Kurniawan Ningsih, Hartati Kartika Nuddin Harahap Nunik Cokrowati Nunik Cokrowati Nur Maulida Safitri Nur Syahid, Nur Nurhabib, Asro Nurhalisa Nurhalisa Nurkhasanah, Anissa Aprilia Orchida, Kharisma Pane, Elya Putri Patresna, Laelatul Nisa Permanasari, Setya W. A. Prabandani, Alfurena Pratama Diffi Samuel Pratiwi, Rizky Kusma Priska Ristianadewi Priska Ristianadewi PURWANTI PURWANTI Puspitasari, Asthervina Widyastami Putra, Renanda Baghaz D.S. Putra, Renanda Baghaz Dzulhamdhani Surya Putri Anugerah Qodri Fitra, Mohammad Rahardjo, Seto Sugianto Prabowo Rahmi Nurdiani Rahmi Valina Rahmi Valina Rahmi Valina Raisa Safara Renanda Baghaz Dzulhamdhani Surya Putra Renitasari, Diana Putri Rizky Kusma Pratiwi Rizky Kusma Pratiwi Rizky Kusma Pratiwi Rukmini Rukmini Saddam Langkung Djaduk Saddam Langkung Djaduk Safara, Raisa Samuel, Pratama Diffi Saputri, Nadya Agustarina Sartika Tangguda Savira, Riza Sawiya Sawiya Septi Anitasari, Septi Setya Widi A. P. Shao-Yang Hu Shofiyatul Lailiyah Shofiyatul lailiyah Shofiyatul Lailiyah Slamat, Slamat Soemarmo Soemarmo Soemarno Soemarno Sofiatul Sri Andayani Sri Andayani Sri Dayuti Sri Intan Anggraini Sri Lestari Styaningrum, Nimas Subarijanti, Herwati Umi Suliswanto, Suliswanto Supriatin, Febriyani Eka Syams, Muhammad Nafar Amani Syarifah Hikmah Julinda Sari Syeftyan Muhammad Ali Hamami Tangguda, Sartika Taufik Budhi Pramono Taufik Budhi Pramono Tinny D Kaunang TIWI NURJANNATI UTAMI Umi Zakiyah, Umi Valina, Rahmi Vina Nur Nadiro Wahyu Endra Kusuma Widyastami, Asthervina Winarno, Muhklas Shah Yanuhar, Uun Yenny Risjani Yuni Kilawati Zakiyyah Nur Inayah Zakiyyah Nur Inayah