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All Journal 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 Economics, Econometrics & Finance Education Immunology & microbiology Library & Information Science 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.
Co-Authors A. Wahab Jufri A. Wahab Jufri Abdul Syukur Agil Al Idrus Ahmad Raksun Alda Saputri Alwani Alwani Awang Rizqi Ubaidillah Dadi Setiadi Darmansyah Dita Maulina Elga Amelinda Nathania Feniysia Alfiana Fitria Rahmadani Galuh Chandra Kirana Gito Hadiprayitno I Gde Mertha I Putu Aryatasa Jamaluddin Jamaluddin Jamaluddin Jamaluddin Jamaluddin Karina Legiarsi Karnan Karnan Kasulasil Anwari 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