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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Jurnal Ilmiah Profesi Pendidikan
M. Yamin
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Public Health Social Sciences

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Analysis of Mercury (Hg) Heavy Metal Content in Rice Snail (Pila ampullacea) Derived from Rawa Taliwang Lake, West Sumbawa Regency Khairuddin; M. Yamin; Kusmiyati
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4875

Abstract

Danu Rawa Taliwang is a large body of water that receives sources of heavy metal pollution from human activities such as agriculture and mining. By using bioindicators such as fish, heavy metals have been detected in the waters. The aim of the study was to determine the content of heavy metal mercury (Hg) in the Rice Field Snail (Pila ampullacea) originating from Lake Rawa Taliwang to enrich Ecotoxicology course material. The special benefit is to protect consumers who consume fish from heavy metal contaminants.  Sample Snail was put into a plastic bag and then stored in a sample box. The research sample was then analyzed at the Environmental Laboratory Center for the West Nusa Tenggara Environment and Forestry Office. The method of data analysis was carried out by taking muscle tissue from snails and then analyzing the content of heavy metals in the form of Hg using an Atomic Absorption Spectrophotometer. Heavy metals in snail tissue were measured after adding concentrated HNO3 and HClO4, which were heated at 60-70ºC for 2-3 hours until the solution was clear. Ready samples were measured by AAS using an air-acetylene flame. The conclusion of this study is that the heavy metal content of Hg in rice field snails (Pila ampullacea) originating from Lake Rawa Taliwang to enrich Ecotoxicology course material ranges from 0.96 ppm to 1.91 ppm.
The Effect of NPK Fertilizer and Tofu Dregs Organic Fertilizer on The growth of Land Kale Plants (Ipomea reptans Poir) Rayyana Rayyana; Ahmad Raksun; M. Yamin
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
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.v23i4.5503

Abstract

Tofu dregs have a fairly high protein content because not all of the protein content is decomposed during the production of tofu. Tofu dregs are not put to good use, in fact many people actually dispose of waste which causes environmental pollution. The aim of the study was to determine the effect of NPK fertilizer and tofu dregs organic fertilizer, as well as the combination of these fertilizers on the growth of ground water spinach (Ipomea reptans Poir). The type of research is an experimental 4x4 factorial with a completely randomized design. The first factor was NPK fertilizer which consisted of 4 levels (0, 0.4, 0.8 and 1.2 g/100 ml of water). The second factor was tofu dregs organic fertilizer (0, 50, 100, 150 g/3 kg soil) which consisted of 16 treatment combinations. Test the research hypothesis using TWO WAY ANOVA. The results showed that the application of NPK fertilizer and organic tofu dregs had an effect on fresh weight, plant height, dry weight, and number of leaves. However, it has no effect on leaf area. Application of organic tofu dregs fertilizer at a dose of 150 g/3 kg of soil, and NPK fertilizer 0.4 and 0.8 g/100 ml of water resulted in the best growth of kale plants at the age of 30 days.
Analysis of Heavy Metal Cadmium (Cd) Content in Snakehead Fish (Channa striata) from Lake Rawa Taliwang Alya Septiana; Khairuddin Khairuddin; M. Yamin
Jurnal Penelitian Pendidikan IPA Vol 10 No 3 (2024): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i3.7323

Abstract

Rawa Lake Taliwang is the lifeblood of the West Sumbawa Regency community. The lake is surrounded by extensive agricultural areas, making the activities of local farmers a significant contributor to the accumulation of heavy metals in the region. This study aims to determine the cadmium (Cd) content in snakehead fish (Channa striata ) and assess its suitability for consumption. Sampling was conducted using purposive sampling with direct observation at Lake Rawa Taliwang . Nets or traps were employed at two stations, with two replications at each station. Data analysis involved calculating the cadmium content in the laboratory using Atomic Absorption Spectroscopy (AAS). The results revealed that the cadmium concentration in snakehead fish from Lake Rawa Taliwang was 0.45 mg/kg (ppm). This concentration exceeds the permissible limit for metal contamination in food, as stated in BPOM Regulation Number 9 of 2022. As a result, the snakehead fish is deemed unfit for consumption.
Analysis of The Heavy Metal Cd Content in Ricefield Eel from Rawa Taliwang Lake, West Sumbawa Regency Khairuddin; M. Yamin; Kusmiyati
Jurnal Penelitian Pendidikan IPA Vol 10 No 4 (2024): April
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i4.7516

Abstract

It is important to carry out research on heavy metal in fish body. The specific aims and targets of this research are: Want to know the metal content of Cadmium (Cd) in Ricefield eels (Monopterus albus) which comes from Rawa Taliwang Lake. The specific benefit is to protect consumers who consume fish from heavy metal contamination. The research was carried out at Rawa Taliwang Lake, namely in an area that is submerged in water. There are 2 research stations, namely in the eastern and western parts of the lake. Data collection method was carried out using traps (Bubu). Four Ricefield eel samples were taken at each station. Next, the rice eel samples were put into a plastic bag and then stored in a sample box. The research samples were then analyzed at the Mataram Uviversity analytical laboratory and at Environmental Laboratory of the Environmental and forestry services West Nusa Tenggara Province.  The data analysis method is carried out by taking the tissues from the Ricefield eel muscles, and then analyzed for Cd heavy metal content by using Atomic Absorption Spectrophotometer. Measurement of heavy metals in Ricefield eel tissue was carried out by adding concentrated HNO3 and HClO4 , heated at a temperature of 60-70ºC for 2-3 hours until the solution was clear. Samples are ready to be measured with AAS using an air-acetylene flame. The conclusion of this research is that the content of Cd heavy metal in Ricefield Eels (Monopterus albus) originating from Rawa Taliwang Lake ranges from 2.55 - 4.01 mg/kg (ppm).
Penguatan Kapasitas Masyarakat dalam Pengembangan Ekowisata Pengamatan Burung di Taman Wisata Alam Kerandangan M. Yamin; A. W. Jufri; Khairuddin; Didik Dantoso; Ade Andriyan; Andra Ade Riyanto
Jurnal Pengabdian Magister Pendidikan IPA Vol 9 No 2 (2026): April-Juni 2026
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v9i2.15620

Abstract

Pengembangan ekowisata berbasis pengamatan burung (birdwatching) memiliki potensi besar sebagai alternatif konservasi sekaligus peningkatan ekonomi masyarakat lokal. Namun, kapasitas masyarakat di sekitar Taman Wisata Alam (TWA) Kerandangan masih terbatas dalam mengelola potensi tersebut. Kegiatan pengabdian ini bertujuan untuk memperkuat kapasitas masyarakat melalui pelatihan identifikasi burung, pemanduan ekowisata, serta pengelolaan destinasi wisata yang berkelanjutan. Metode yang digunakan meliputi pelatihan partisipatif, pendampingan lapangan, dan evaluasi berbasis keterampilan. Hasil kegiatan menunjukkan peningkatan pengetahuan masyarakat tentang jenis-jenis burung endemik, keterampilan komunikasi interpretasi alam, serta kemampuan menyusun paket wisata berbasis lingkungan. Kegiatan ini berhasil membentuk kelompok sadar ekowisata yang mulai mandiri dalam mengelola kegiatan birdwatching.
Feeding Ecology of Philemon buceroides to Support Its Conservation Strategy M. Yamin; Khairuddin Khairuddin; I Wayan Mertha
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
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.v26i2.12056

Abstract

Understanding food ecology is essential for conserving wildlife because feeding resources directly influence species survival, habitat use, and ecosystem functioning. This information is particularly important for endemic and habitat-dependent birds in tropical dry forests, where environmental changes may threaten food availability. This study aimed to analyze the feeding habits of P. buceroides in Taman Buru Pulau Moyo and evaluate their implications for conservation management. Field observations were conducted at four habitat types: primary forest, forest edge, plantation area, and savanna. Vegetation sampling was performed using 50 m × 50 m quadrats to document plant species composition and potential food resources. Data collected included vegetation characteristics, food plant species, feeding frequency, and resource utilization by P. buceroides. Vegetation data were analyzed using the Important Value Index (IVI), while feeding behavior and dietary preferences were assessed descriptively and qualitatively. The results showed that P. buceroides primarily feeds on nectar and fruits, with insects serving as supplementary food sources. Several flowering and fruit-bearing plant species were identified as key food resources supporting the species within the tropical dry forest ecosystem of Pulau Moyo. Feeding activities varied temporally, reflecting fluctuations in resource availability across habitats and observation periods. These findings highlight the ecological dependence of P. buceroides on specific plant species and emphasize the importance of maintaining habitat heterogeneity and protecting critical food plants. The study provides baseline ecological information that can support habitat management and conservation strategies for sustaining P. buceroides populations in Pulau Moyo and similar tropical dry forest ecosystems.
Co-Authors A. W. Jufri A. Wahab Jufri A. Wahab Jufri Abdul Syukur Ade Andriyan Agil Al Idrus Ahmad Raksun Alda Saputri Alwani Alwani Alya Septiana Andra Ade Riyanto Awang Rizqi Ubaidillah Dadi Setiadi Darmansyah Didik Dantoso Dita Maulina Elga Amelinda Nathania Feniysia Alfiana Fitria Rahmadani Galuh Chandra Kirana Gito Hadiprayitno I Gde Mertha I Putu Aryatasa I Wayan Mertha Jamaluddin Jamaluddin Jamaluddin Jamaluddin Jamaluddin Karina Legiarsi Karnan Karnan Kasulasil Anwari Khairuddin Khairuddin Khairuddin Khairuddin - Khairuddin Khairuddin Khairunnisyah Sahidu Kusmiyati Kusmiyati Lili Mantika Shoalichin M. Liwa Ilhamdi Muhamad Alfian Yunanmalifah Muhlis Muhlis Ni Luh Putu Pebri Artayani . Nur Lestari Putu Artayasa Ratu Mas Tara Indriani Rayyana Rayyana Rifcka Aulia Hidayati SATRIYAS ILYAS Sirni Hadriwani Widya Nartika Sari Widya Septiani