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Bioscientist : Jurnal Ilmiah Biologi
Published by Universitas Pendidikan Mandalika
ISSN : 23385006     EISSN : 26544571     DOI : https://doi.org/10.33394
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences
Bioscientist : Jurnal Ilmiah Biologi (BJIB), receiving and publishing article in the form of research (scientific article) in the field of biology education and utilization of biological research in learning. Moreover, this journal bridges the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of biology research and teaching. Through the coverage of policy and curriculum developments, the latest results of research into the teaching, learning and assessment of biology are brought to the fore. Special emphasize are as follow: 1. Research on Learning Biology (Biology Learning Materials at All Education Levels). 2. Pure Research of Biology Developed or Studied to the Sources, Materials, or Instructional Media Biology (Biology Learning Materials at All Education Levels and Application in Society). 3. Curriculum of Biology Education at all Education Levels. 4. Class Action Research (CAR) and Lesson Study in Biology. 5. Other Qualitative Research of Biology Education. 6. The School Management and Biology/Science Laboratory Management. 7. Biology Learning Evaluation. 8. Teacher Professional Issues/Trends in Biology Education. 9. Another Study for the Scope of Biology Education. 10. Research on Environmental Education.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 75 Documents
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Search results for , issue "Vol. 13 No. 4 (2025): December" : 75 Documents clear
Potensi Karbon dan Nilai Jasa Lingkungan di Agroforestri LPHN (Lembaga Pengelola Hutan Nagari) Sungai Buluh, Padang Pariaman, Sumatera Barat Rahmawati, Lily; Chairul; Solfiyeni
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.19456

Abstract

This study aims to analyze biomass quantity, carbon reserves, carbon sequestration, and to determine the environmental value of carbon sequestration in the agroforestry area of LPHN Sungai Buluh Padang Pariaman. This is because agroforestry areas can also play a role in carbon sequestration in addition to their economic function for the community. This study was conducted using purposive sampling to determine the location of 30 observation plots. Data collection was carried out using destructive sampling for undergrowth and litter data and non-destructive sampling for tree and sapling strata data. The results of this study were a total biomass of 280.768 tons/ha, total carbon reserves obtained from the biomass value of 131.955 tons/ha, and total carbon sequestration of 484.294 tons/ha. Meanwhile, the environmental service value of carbon sequestration was IDR 82,566,423,881.28/ton/year. The environmental service value obtained from this research location is relatively low compared to studies conducted in other locations, primarily due to the limited vegetation types and small study area.
Pengembangan Modul Pencemaran Udara Berbasis SETS (Science, Environment, Technology and Society) Terhadap Kemampuan Berpikir Kritis Siswa Siregar, Putri Febiola; Hasruddin; Harsono, Tri
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.19457

Abstract

This study aims to develop and examine the effect of a SETS-based (Science, Environment, Technology, and Society) Air Pollution Module in improving students’ critical thinking skills and scientific attitudes f tenth-grade students at SMA Muhammadiyah 1 Medan. The research employed a Research and Development (R&D) method using the ADDIE model, which consists of analysis, design, development, implementation, and evaluation stages. The research instruments included test and non-test instruments, namely a modified BSNP-standard validation sheet and essay questions. The validation results indicate that the module is in the very feasible category, with average scores of 4.68 from material experts, 3.60 from media experts, and 4.00 from language experts. The results of classroom implementation show that the SETS-based module can improve students’ critical thinking skills, with an N-Gain score of 0.51 (moderate category). Furthermore, there is a significant effect of using the module on students’ critical thinking skills. Therefore, the SETS-based air pollution module is suitable for use as teaching material to support meaningful and contextual learning.
Identifikasi Jenis-jenis Tumbuhan Mangrove di Pantai Kaili Desa Boyantongo Kecamatan Parigi Selatan Ningsi, Nur Seftia; Alibasyah, Lestari M.P.; Febriani, Vita Indri; Nurdin, Musdalifah; Buntu, Amalia; Febriawan, Aan
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.19528

Abstract

This study aimed to identify mangrove species occurring in Kaili Beach, Boyantongo Village, South Parigi District. The research employed a descriptive method with a qualitative approach using a field exploration survey. Species identification was conducted based on observations of morphological characteristics, including roots, stems, leaves, flowers, and fruits, supported by measurements of environmental physical parameters such as air temperature (28 °C), salinity (32 ppt), soil pH (7), water pH (6.2), and relative humidity (72% RH). The results revealed that the mangrove vegetation at Kaili Beach comprised five orders, namely Malpighiales, Myrtales, Lamiales, and Sapindales, and four families, including Rhizophoraceae, Lythraceae, Acanthaceae, and Meliaceae. A total of eight mangrove species were identified: Rhizophora apiculata Blume, Rhizophora mucronata Lamk., Ceriops tagal (Perr.) C.B.Rob., Bruguiera gymnorrhiza (L.) Lamk., Sonneratia alba Smith., Avicennia marina (Forsk.) Vierh., Xylocarpus moluccensis Pierre., and Xylocarpus granatum J. Koenig. The presence of these mangrove species indicates that the physical and chemical parameters of Kaili Beach remain within the ecological tolerance range for mangrove growth. However, the slightly acidic water pH (6.2) suggests that habitat conditions are not yet fully optimal.
Ketahanan Luntur Warna Pewarna Alami Berbasis Propagul Rhizophora mucronata: Pengaruh Variasi Pencelupan dan Jenis Fiksator Nabilla, Riska Ayu; Nugroho, Ary Susatyo; Ulfah, Maria
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.19545

Abstract

This study aims to analyze the effect of variations in the number of dips and types of fixatives, as well as their interaction, on the color fastness of batik fabrics dyed using natural dyes based on Rhizophora mucronata propagules. The study used a quantitative approach with an experimental method and a two-factor factorial design, namely variations in the number of dips (3 times, 6 times, and 9 times) and the type of fixative (alum and iron mordant). The parameter observed was color fastness to washing based on the SNI ISO 105-C06:2010 standard. The data were analyzed using the nonparametric Aligned Rank Transform Analysis of Variance (ART ANOVA) test. The results showed that (1) the variation in the number of dips did not significantly affect the color fastness of batik fabric; (2) the type of fixative used also did not have a significant effect; and (3) there was no interaction between the variation in the number of dips and the type of fixative on color fastness. All treatments produced color fastness values in the fair to good category. These findings indicate that under the conditions and range of treatments used, variations in dyeing or the type of fixative did not significantly affect colorfastness, thus requiring further study with a wider range of treatments to optimize the mangrove-based natural dyeing process.
Struktur Populasi, Frekuensi Kasus Penyakit dan Respon Antibodi pada Sapi Lokal dan Kerbau Pampangan Pascavaksinasi Septicaemia Epizootica di Kabupaten Ogan Komering Ilir, Sumatera Selatan Aksi; Mudawamah; Muwakhid, Badat
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.19595

Abstract

This study aimed to analyze population structure, disease case frequency, and post-vaccination antibody responses of Pampangan cattle and buffalo following Septicaemia Epizootica (SE) vaccination in Ogan Komering Ilir (OKI) Regency, South Sumatra. The research employed a quantitative longitudinal observational design based on secondary data collected from March to August 2024, including livestock population records, disease cases, vaccination coverage, and antibody test results measured using the ELISA method. Data were analyzed descriptively and inferentially through normality tests, independent t-tests, Mann–Whitney U tests, Chi-Square tests, and Kruskal–Wallis tests according to data distribution. The results indicated significant to highly significant differences in population structure between cattle and buffalo. Cattle populations were higher in total number (35,999 vs. 10,297 head), proportion of calves (17.48% vs. 14.54%) and young stock (25.05% vs. 23.25%), male–female ratio (66.38% vs. 62.03%), and replacement rate (40.61% vs. 38.79%). In contrast, buffalo showed higher proportions of adult animals (62.21% vs. 57.47%), breeding herd (38.84% vs. 35.75%), and potential dams (53.90% vs. 50.26%). Nevertheless, both cattle and buffalo met national standards for sex ratio and replacement indicators. The frequency of SE cases did not differ significantly between species; however, descriptively, increased vaccination coverage was associated with a decline in reported cases. Post-vaccination antibody responses were not significantly influenced by species, breed, or geographical area. In conclusion, SE vaccination proved effective in reducing disease spread and generating consistent immunity across livestock, despite existing differences in population structure.

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