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All Journal Jurnal Biologi Tropis Pendas : Jurnah Ilmiah Pendidikan Dasar
Nurwahdania, Nurwahdania
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Other

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Analysis of Cadmium (Cd) Levels in Tilapia Fish (Oreochromis mossambicus) from Ponds in Palibelo Nurwahdania, Nurwahdania; Khairuddin, Khairuddin; Yamin, M.
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
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.v24i3.7456

Abstract

Fish are oceanic biota that are frequently utilized as signs of weighty metal contamination in waters. The purpose of this study was to determine the levels of cadmium (Cd) in tilapia from ponds in Palibelo and whether or not it is safe for consumption based on the Regulation of the Food and Drug Supervisory Agency (BPOM) No. 9 of 2022 concerning Requirements for Heavy Metal Contamination in Processed Food. Sampling was carried out by purposive sampling, at each station two fish samples were taken using floating nets. Samples were analyzed at the Health Laboratory, Testing and Calibration Center (BLKPK) of NTB Province. Data analysis was carried out by taking body parts, namely tilapia meat, then analyzing cadmium (Cd) levels using AAS. The results showed that cadmium levels in tilapia were still below the standard quality standards ranging from 0.0033-0.0057 mg/kg, with an average cadmium of 0.00465 mg/kg. Cadmium comes from household waste and modern waste carried by river currents. Environmental factors obtained temperature, pH, and salinity are in ideal conditions for the life of Tilapia fish. The conclusion is that Tilapia fish from fish farming in Palibelo is still suitable for consumption because it is still below the standard quality of 0.30 mg/kg.
Analysis of Infiltration Rate in Community Forest Land (HKm) Wombo Rengge Kala, Dompu District, West Nusa Tenggara Nurwahdania, Nurwahdania; Ichsan, Andi Chairil; Wulandari, Febriana Tri
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): 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.v25i1.8442

Abstract

The amount of water that enters the soil per unit of time is known as the infiltration rate, whereas infiltration itself is the process by which water flows into the soil, typically via rainfall. The purpose of this study was to determine the infiltration rate and the impact of infiltration and to formulate community efforts to control infiltration in the Ampang Riwo community forest. Determination of the research sampling point using purposive sampling. This study used 4 infiltration rate test points and 4 samples were taken for soil samples, namely Vegetation is not dense, very steep land (V1L1), Vegetation is not dense, rather steep land (V1L2), Vegetation is dense, very steep land (V2L1), and Vegetation is dense, rather steep land (V2L2). Measurements were taken using a double ring infiltrometer. The results of the study showed that there were 3 plots that had a fairly fast classification but had different infiltration rate values. The first plot V1L1 which had an infiltration rate value of 150 cm/hour, the second plot V2L1 had an infiltration rate value of 108 cm/hour, In the third plot V2L2 had an infiltration rate value of 186 cm/hour, in the plot V1L2 had a fast infiltration classification, an infiltration rate value of 204 cm/hour. This study there were 12 respondents, namely farmers who had cultivated land. The characteristics of the respondents included age and education level. Based on the results of the study, the perception of cultivators regarding the infiltration rate was obtained with a total of 13 respondents for 10 questions, on average answering strongly agree and agree. For strongly agree 30.77% and 69.23% agreed.
ANALISIS PROBLEMATIKA PENERAPAN KURIKULUM MERDEKA BELAJAR PADA SEKOLAH DASAR GUGUS 1 DI KECAMATAN SELAPARANG KOTA MATARAM Nurwahdania, Nurwahdania; Karma, I Nyoman; Syazali, Muhammad
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 9 No. 3 (2024): Volume 09 No. 03 September 2024.
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v9i3.20347

Abstract

This research aims to describe teacher problems in implementing the Independent Learning Curriculum at Cluster 1 Elementary Schools in Selaparang District, Mataram City. The type of research used is descriptive research using a qualitative approach. The subjects in this research were class teachers who implemented the Merdeka Curriculum in each school at SD Gugus 1, Selaparang District, Mataram City. Data collection was carried out using interview techniques, questionnaires and documentation. The data analysis techniques used are data collection, data reduction, data presentation, conclusions and verification. Meanwhile, data validity testing was carried out using technical triangulation and source triangulation. The results of the research show that teachers' problems in implementing the Independent Learning Curriculum in planning, implementing and processing assessment/assessment results are difficulties in analyzing or understanding CP and its components, using a constructivist approach in preparing plans, compiling TP and ATP, determining models and approach methods in learning, preparing and developing teaching modules, using teaching modules prepared by the government, implementing differentiated learning, coordinating and organizing students, growing the Pancasila student profile in students, using media and learning resources, determining follow-up for students, lack of references and feedback from parents of students.
Co-Authors chairil ichsan, andi Karma, I Nyoman Khairuddin - M. Yamin Syazali, Muhammad Wulandari, Febriana Tri