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All Journal Maspari Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Maspari Journal Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal FishtecH Jurnal Penelitian Sains JEPA (Jurnal Ekonomi Pertanian dan Agribisnis) Jurnal Biologi Tropis Jurnal Pertanian Agros Jurnal Ilmiah Mandala Education (JIME) Politicon : Jurnal Ilmu Politik Jurnal Abdi Insani Journal of Community Development MAHATANI: Jurnal Agribisnis (Agribusiness and Agricultural Economics Journal) Indonesian Journal of Oceanography BIOVALENTIA: Biological Research Journal Jurnal Armada Informatika Jurnal Sylva Lestari YASIN: Jurnal Pendidikan dan Sosial Budaya Student Scientific Creativity Journal Jurnal Pengabdian Pada Masyarakat Journal of Socio Economics on Tropical Agriculture (Jurnal Sosial Ekonomi Pertanian Tropis) (JOSETA) Journal of Marine Resources and Coastal Management Al-Muhith : Jurnal Ilmu Qur'an dan Hadits Jurnal Informatika Press Jurnal Informatika Logika
Muhammad Hendri
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Hubungan Parameter Perairan dengan Struktur Komunitas Rumput Laut di Perairan Pulau Maspari, Sumatera Selatan Aryawati, Riris; Ulqodry, Tengku Zia; Surbakti, Heron; Isnaini, Isnaini; Agussalim, Andi; Apri, Rezi; Hendri, Muhammad; Rozirwan, Rozirwan; Hilmaturosyidah, Hilmaturosyidah
Indonesian Journal of Oceanography Vol 8, No 1 (2026): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v8i1.29656

Abstract

Pulau Maspari merupakan pulau kecil dan terpencil yang terletak di bagian selatan Selat Bangka, Provinsi Sumatera Selatan. Pulau Maspari diketahui memiliki beberapa potensi sumber daya hayati laut, termasuk rumput laut. Sampai saat ini belum ada informasi ilmiah mengenai kondisi rumput laut yang berada di  Pulau Maspari dan minimnya data terkait parameter lingkungan perairannya. Penelitian ini bertujuan untuk menganalisis hubungan antara parameter perairan dan keanekaragaman rumput laut di perairan Pulau Maspari, yang dilaksanakan pada Juli 2024 menggunakan metode eksploratif di tujuh stasiun sampling. Hasil penelitian menunjukkan bahwa terdapat delapan spesies rumput laut yang teridentifikasi dari tujuh stasiun, yaitu Caulerpa lentillifera, Cladophora prolifera, Derbesia sp., Ulva lactuca, Padina minor, Sargassum polycystum, Acanthophora spicifera, dan Gracilaria salicornia. Hasil analisis komponen utama (PCA) menunjukkan bahwa parameter perairan seperti suhu, kecerahan, kecepatan arus, salinitas, oksigen terlarut, pH, nitrat, dan fosfat memiliki pengaruh signifikan terhadap struktur komunitas rumput laut, dengan persentase total sumbu F1 dan F2 mencapai 69,51% serta sumbu F1 dan F3 mencapai 41,59%. Indeks keanekaragaman dan keseragaman tertinggi ditemukan di stasiun 7, sedangkan indeks dominansi tertinggi terdapat di stasiun 3, 4, dan 6. Penelitian ini diharapkan dapat menyediakan data dasar tentang struktur komunitas rumput laut di perairan Pulau Maspari, yang berguna dalam membantu pengambilan keputusan dalam pengelolaan serta konservasi ekosistem perairan.
Antioxidant Activity of Stem, Fruit, and Leaf Extracts of Sonneratia ovata Mangrove Using the DPPH Method Ikhlasul Amal; Muhammad Hendri; Muhammad Yosi Prasetyo; Mohammad , Javad Hessami
BIOVALENTIA: Biological Research Journal Vol. 11 No. 2 (2025)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.11.2.2025.520

Abstract

Mangrove plants are a type of plant that is able to grow in brackish waters in different salinity conditions in the tropics so as to form a unique and distinctive ecosystem. One of the mangrove plants that live in Indonesian waters is the mangrove of the Sonneratia genus. Empirically, parts of the mangrove plant of the Sonneratia sp. species such as fruit, bark, and leaves have been widely used as traditional medicine by the community to treat various diseases and can be used as natural antioxidants that are good for the body. The purpose of this study was to determine and analyze the potential activity of antioxidant compounds from the stem, fruit, and leaf extract of mangrove S. ovata. The antioxidant activity test method used the DPPH method which was measured by the percentage of inhibition and IC₅₀ value. The results of antioxidant activity from several test concentrations of stem, fruit, and leaf extracts obtained a very high percentage of inhibition so that the antioxidant compounds contained in the three samples could reduce free radical activity. Fruit samples had the highest antioxidant potential with an IC₅₀ value of 4.59 ppm, followed by leaf samples at 25.39 ppm and stem samples at 45.91 ppm. Thus, mangroves of the S. ovata species have the potential as natural antioxidants that are good for the body and only require <50 ppm to reduce free radicals by 50%.
Influence of Water Quality Parameters on Zooxanthellae Density in Reef-Building Corals from Pahawang Island, Lampung, Indonesia Anugerah, Nanda Rizky; Aryawati, Riris; Isnaini, Isnaini; Ulqodry, Tengku Zia; Hendri, Muhammad; Suteja, Yulianto
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11529

Abstract

Despite the ecological and economic significance of coral reefs, quantitative data on how water quality parameters regulate zooxanthellae density in anthropogenically impacted tropical reefs remain limited. This study investigated the influence of water quality parameters on zooxanthellae density in branching corals at Pahawang Island, Lampung, Indonesia, across four stations representing different levels of human disturbance: dock area (Station 1), floating net cages area (Station 2), recreational area (Station 3), and a relatively pristine area (Station 4). Coral fragments were collected by SCUBA diving at 2–5 m depth, and zooxanthellae were extracted by homogenization followed by centrifugation, with cell density quantified using a hemocytometer under light microscopy. Physical and chemical water quality parameters were measured in situ using a CTD profiler, while nutrient concentrations were analyzed according to SNI protocols. Zooxanthellae density ranged from 16,822 to 22,227 cells/cm², indicating a healthy symbiotic status across all stations. Principal Component Analysis (PCA) identified dissolved oxygen (5.5–6.4 mg/L), depth (2.20–4.10 m), and water clarity (2.0–3.0 m) as the primary environmental drivers of zooxanthellae density variation, while temperature, pH, and salinity remained stable and within coral-suitable ranges. Hydrodynamic conditions and oxygen availability, rather than nutrient enrichment, appear to be the dominant regulators of zooxanthellae density at this site. These findings highlight the need for site-specific management strategies that prioritize maintaining dissolved oxygen levels and water circulation, and provide a scientific basis for developing zoning policies in coral ecotourism areas of Pahawang Island to ensure long-term reef ecosystem health.
Perancangan Aplikasi Kasir Berbasis Web Menggunakan Metode Software Development Life Cycle Pada Guns Ponsel Yulia Retno; Muhammad Hendri; Sahara Abdy
Jurnal Informatika Press Vol. 2 No. 2 (2025): Juli
Publisher : Jurnal Informatika Press

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Abstract

Guns Ponsel adalah toko penjualan berbagai merk handphon serta berbagai macam asesoris handphone. Kegiatan operasional Guns Ponsel saat ini mash dilakukan secara manual. Kegiatan operasional tersebut meliputi transaksi penjualan, persediaan stok barang dan pembuatan laporan. Kegiatan yang dilakukan secara manual memiliki beberapa kekurangan diantaranya kurangnya efisiensi waktu dalam proses transaksi jual beli barang, membutuhkan waktu dan tenaga yang banyak dalam proses pencatatan dan pengolahan data penjualan, kurangnya efektivitas dalam pengelolaan data stok barang, sulitnya melakukan pencarian dan pembuatan laporan pada setiap kegiatan transaksi. Merancang sebuah aplikasi kasir berbasis web yang efisien dan mudah digunakan dapat membantu proses transaksi penjualan dan pengolahan data toko serta pembuatan laporan. Penelitian ini dibuat untuk merancang aplikasi kasir berbasis web. Aplikasi kasir berbasis web ini dirancang untuk membantu Guns Ponsel dalam mengelola transaksi penjualan secara efisien. Metode Software Development Life Cycle (SDLC) yang digunakan dalam perancangan aplikasi ini adalah model waterfall.
Algoritma Backpropagation Neural Network Untuk Memprediksi Hasil Kinerja Pegawai Surya Hari Harahap; Muhammad Hendri; Sri Linda Wati
Jurnal Informatika Logika Vol. 1 No. 2 (2024): Juli
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Methodist Binjai

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Abstract

Kualitas sumber daya manusia merupakan salah satu faktor yang meningkatkan produktifitas kinerja dari suatu organisasi ataupun perusahaan. Diperlukan sumber daya manusia yang memiliki kompetensi tinggi karena keahlian atau kompetensi akan dapat mendukung peningkatan prestasi kinerja pegawai. Kinerja pegawai yang tinggi tentu saja akan berdampak positif terhadap perkembangan perusahaan itu sendiri berdasarkan ruang lingkup kegiatan perusahaan tersebut. Pengukuran kinerja suatu perusahaan sangat penting guna evaluasi dan perencanaan masa depan. Penilaian kinerja pegawai mutlak harus dilakukan untuk mengetahui prestasi yang hendak dicapai setiap pegawai. Apakah prestasi yang dicapai setiap pegawai baik, sedang atau kurang. Kantor Desa Lantosan 1 merupakan kantor yang mengelola administrasi masyarakat seperti pembuatan surat pindah, KTP dan lain sebagainya. Kantor Dalam kegiatan penilaian kinerja pegawainya menggunakan konsep konvensional yaitu berdasarkan laporan atasan langsung ataupun dari rekan kerja, dimana penilaian dilakukan tidak transparan sehingga umumnya berdasarkan instuisi dari pengawas/pimpinan operasional pegawai tersebut. Oleh sebab itu, maka diperlukan suatu aplikasi yang mampu memprediksi hasil kinerja pegawai tersebut menggunakan konsep yang telah teruji seperti penggunaan algoritma backpropagation dalam melakukan penilaian tersebut. Metode ini digunakan karena sudah teruji, dimana metode ini memiliki kemampuan untuk melakukan prediksi hasil penilaian berdasarkan data yang telah di training. Adapun tujuan dari penelitian ini adalah membuat suatu aplikasi yang mampu melakukan prediksi penilaian kinerja dengan menggunakan metode backpropagation.
Penerapan Model Pembelajaran Project Based Learning (PjBL) untuk Meningkatkan Hasil Belajar Siswa Kelas 1 SD Negeri 33 Mataram Hendri, Muhammad; Witono, A.Hari; Lestari, Sri
YASIN Vol 3 No 6 (2023): DESEMBER
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/yasin.v3i6.1845

Abstract

This research aims to describe the steps for implementing the project based learning (PjBL) learning model in improving learning outcomes, knowing the increase in learning outcomes. The type of this research is classroom action research (PTK) which is carried out in two cycles. This research was carried out at SD Negeri 33 Mataram with the research subjects being grade 1 students at SD Negeri 33 Mataram with a total of 28 children as subjects. Data collection techniques use test techniques. The data analysis used is quantitative descriptive. The research results show that there is an increase in learning outcomes through the application of the Project Based Learning learning model for grade 1 students at SD Negeri 33 Mataram. This is evidenced by the increase in student learning outcomes with the average student learning outcomes in the initial condition being 55 with 10 students (36%) experiencing an increase in cycle 1 with an average student score of 67 with 17 students (60%) and in cycle 2 The average student score is 82 with the number of students completing as many as 25 or (89%) students completing.
Co-Authors Ace Baehaki Adam Sari Agustiarini, Vitri Ahsin, Awaludin Akhmad Tri Prasetyo Andi Agussalim, Andi Anggraini, Rifka Rimbi Anna Heirina Anna Ida Sunaryo Purwiyanto Anshari, Farid Anugerah, Nanda Rizky Ariana Ayunindya Asshidiq, Hasbi Nur Ayunindya, Ariana Bambang Hudiono Barus, Beta Susanto Budi Purwanto Daratil Khoiri Mukhlis Dede Suratman Delima A. G. Situmorang Delta, Muhammad Dimas Arie Pratama Dina Novita, Dina Eka Maya Kurniasih, Eka Maya Elvira Sukma Wahyuni Ernawati Fauziyah Fauziyah Fernando, Henky Ficka Ferdianti Fitri, Melani Anisa Fitriana, Widya Gusti Diansyah Hadi, Rakhmat Hasanudin Hasanudin Hasanudin Hermialingga, Septi Heron Surbakti Hilda Zulkifli Hilda Zulkifli Hilmaturosyidah, Hilmaturosyidah Ikhlasul Amal Ikhlasul Amal Inda Azhara Indica, Mangifera Indra Boby Indriani . Indriani . Ira Wahyuni Syarfi Irwan Irwan Isnaini Isnaini Kamal, Ahlal Khairat, Rusda Larasati, Yuniar Galuh Lestari, Ning Intan M. Efendi Margareta, Tanti Melki Melki Melki Melki Melki Mohamed, Che Abd Rahim Mohammad , Javad Hessami Morin, Leanne Muhammad Delta Muhammad Fahmi Siahaan Muhammad Rafil MUHAMMAD SAID Muhammad Tahir Muhammad Yosi Prasetyo Muhtadi Mukhlis, Daratil Khoiri Muslim Muslim Netty Kurniawaty Ningsih, Ellis Nurjuliasti Novitasari, Tri Ayu Nurhidayat Nurhidayat Opi Andriani Patriadi, Andi Prasetia, Pebri Adrianto Prasetyo, M Yosi Purwiyanto, Anna Putri, Dinda Kusuma Rahmadina, Mia Rahman, Sandy Aulia RAHMAT SYAHNI Raihan, Muhammad Rakhmat Hadi Ramdahany, Sri Redho Yoga Nugroho Rezi Apri Rezi Apri Ridhowati, Sherly Rini Hakimi Rinto Rinto Riris Aryawati Rizky Nurul Irmawan Rozirwan . Ruci Kurnia Rufi'i Sahara Abdy Saka, Putri Ananda Sarno . Sepferizal, Rizky Shaum Shiyan Sobaruddin, Dyan Primana Sri Linda Wati Sri Lindawati Surya Hari Harahap T. Zia Ulqodry Tarigan, Arfiana Agustiana Tengku Zia Ulqodry Ulqodri, Tengku Zia Ulqodry, T. Usman, Yusri Utami, Risnita Vonny Indah Mutiara Wijayanto, Try Wike AE Putri Wike AE Putri Wike Ayu Eka Putri Winarta, Yoga Witono, A.Hari Yulia Retno Yulianto Suteja Zubai Zubai