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INDONESIA
Biocaster : Jurnal Kajian Biologi
ISSN : 28083598     EISSN : 2808277X     DOI : https://doi.org/10.36312/biocaster
Biocaster : Jurnal Kajian Biologi (B : JKB), focus to bridge the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of advances in biology research, teaching, and learning. 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. Biocaster : Jurnal Kajian Biologi (B : JKB), receiving and publishing article in the form of research and review (scientific article) in the field of biology education and utilization of biological research in teaching and learning. Each article must be linked to the theme "21st century skills in biology education" and / or "Efforts to support the achievements of the goals set forth in the Sustainable Development Goals (SDGs) through biology education". All articles are published in English and under go a peer-review process. The scope of Biocaster : Jurnal Kajian Biologi (B : JKB), is focused on biology education research/review both in topics covered as well as disciplinary perspective : 1) Biology teaching and learning materials at all education levels; 2) Pure Research of Biology developed or studied to the sources, materials, or instructional media Biology (using the Research and Development paradigm/R&D); 3) Curriculum of Biology Education at all education levels; 4) Quasi-experiment, Class Action Research (CAR), and Lesson Study in Biology teaching and learning; 5) Other Qualitative Research of Biology Education; 6) Biology Learning Evaluation/Assessment; 7) Teacher Professional Issues/Trends in Biology Education; and 8) Environmental education.
Articles 37 Documents
Search results for , issue "Vol. 6 No. 2 (2026): April" : 37 Documents clear
Mengungkap Peran Asisten Dosen dalam Mendorong Self-Regulated Learning Mahasiswa Biologi: Studi Mixed Methods Embedded Muhaimin, Fahrul Ghani; Firdausya, Syifa Nabila; Mustikasari, Ayu Chandra; Witanto, Anas Bagaskara; Refdiana, Heni; Kharisma, Nafi’ Windy
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1210

Abstract

Self-regulated learning (SRL) is an essential ability that students must possess to manage their learning processes independently; however, in reality, this ability is still not optimal. One factor that has the potential to support the development of SRL is the role of teaching assistants in the learning process. This study aims to analyze the role of teaching assistants, examine their influence on the SRL of biology students, and explore the pedagogical mechanisms underlying this relationship. The study employed a mixed-methods approach with an embedded design, in which quantitative data served as the primary data and qualitative data as supporting data. The quantitative sample consisted of 207 students and 13 qualitative informants (10 students and 3 teaching assistants) selected through purposive sampling. The results showed that the role of teaching assistants was in the very high category (mean = 4.32), while students’ SRL was in the high category (mean = 4.20). The correlation value (R) of 0.630 indicates a positive relationship between the role of teaching assistants and SRL, with a contribution of 39.7% (R² = 0.397). The regression equation obtained was Y = 30.372 + 0.621X, indicating that each unit increase in the role of teaching assistants leads to an increase in students’ SRL. Pedagogically, this influence is mediated through learning facilitation, reflective feedback, and guided discussions. Therefore, teaching assistants play a strategic role in supporting students’ independent learning.
Napas Hijau Gunung Kawi : Etnobotani Tumbuhan dalam Ritual dan Pengobatan Tradisional Masyarakat Sekitar Desa Balesari Romadhon, Baqtiar Rizki; Vebriani, Fanda; Zaen, Pranadya Ananta Lesta; Putri, Salma Aulia; Muhaimin, Fahrul Ghani; Mustikasari, Ayu Chandra; Kharisma, Nafi’ Windy; Firdausya, Syifa Nabila; Refdiana, Heni; Witanto, Anas Bagaskara; Mahanal, Susriyati
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1222

Abstract

This research is motivated by the lack of documentation of the use of ritual plants and traditional medicine by the Balesari village community, which is threatened with extinction due to modernization. In addition, it aims to identify and document the diversity of ritual plants and traditional medicine of the Balesari village community and analyze quantitative ethnobotanical indexes based on local knowledge, which contributes to the preservation of local knowledge, community adaptation to the environment, and strengthening biocultural resilience as a basis for sustainable conservation and development of traditional medicine. The research method used is a mixed method with an exploratory sequential design. Qualitative data were collected through interviews with the palace caretaker as a key informant and the palace area manager as an additional informant. Quantitative data were obtained through questionnaires to 92 Balesari village residents. Informants were selected through purposive sampling techniques followed by snowball sampling and qualitative and quantitative descriptive analyses were conducted using the ICF, RFC, and SUV indices. The results of the study identified 20 plant species from 12 families with a dominant Zingiberaceae that are used to treat diseases such as coughs, fever, worms, and to tighten the feminine area. The most frequently used plant parts are leaves with a PPUV value of 46.5% and rhizomes at 34.7%. Utilization of plant parts is carried out through boiling, grinding, or a combination of both. The ethnobotanical index shows a high consensus (ICF 0.75-1.00), the highest frequency of mention for Zingiber officinale and Kaempferia galanga (RFC=1), and the highest use value for Zingiber officinale (SUV=1.74) and the Moringaceae family (FUV=1.43). This reflects the strong local knowledge of the Balesari Village community in utilizing a diversity of ritual and health plants. This practice demonstrates the community's adaptation to environmental conditions in strengthening biocultural resilience through the transmission of traditional knowledge from generation to generation.
Carbon Stock and CO₂ Sequestration Potential of Terminalia mantaly as a Conservation Effort in the Campus Forest of the State University of Surabaya Anggraini, Gita Rizki; Rachmadiarti, Fida; Purnomo, Tarzan; Rohmah, Tri Lestari Saidha
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1224

Abstract

Carbon stocks in campus forests play an important role in maintaining ecosystem balance and supporting climate change mitigation. This study aims to analyze the biomass, carbon stock, and carbon sequestration of Terminalia mantaly, along with the contributing factors that influence them. This research employed a non-destructive measurement with purposive sampling. The relationship among variables was analyzed using pearson correlation. The result showed that the highest biomass, carbon stock, and CO2 sequestration values were found at station 2 with sequential sizes of 187.29 kg; 88.02 kg; 323.05 kg. The results of the correlation analysis indicate that carbon stock has a strong and significant positive correlation with diameter, biomass, and CO₂ uptake (r = 0.94, r = 1, and r = 1, respectively). Leaf area showed a strong but non-significant correlation (r = 0.73). Meanwhile, no significant correlations were found between tree height and leaf chlorophyll content and carbon stock (r = 0.20 and r = 0.38, respectively). These findings indicate that Terminalia mantaly has the potential to serve as a carbon sink and CO₂ sequester, particularly in the Surabaya State University Campus Forest.
Dari Ladang ke Meja Makan : Kajian Etnobotani Tumbuhan Pangan Lokal di Desa Gunungronggo Kabupaten Malang Anastasya, Ananda Rifta; Jati, Rindang Sike Nurindra; Muhaimin, Fahrul Ghani; Mustikasari, Ayu Chandra; Kharisma, Nafi’ Windy; Firdausya, Syifa Nabila; Refdiana, Heni; Witanto, Anas Bagaskara; Mahanal, Susriyati
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1225

Abstract

Local food plants play an important role in supporting food security and the sustainable utilization of biological resources at the community level. However, information regarding the types and utilization patterns based on local knowledge is still limited, particularly in Gunungronggo Village. This study aims to identify the types of local food plants and analyze their utilization patterns using an ethnobotanical approach. The method used was a mixed-method (qualitative–quantitative) with an exploratory sequential design. Qualitative data were obtained through interviews with informants selected using purposive and snowball sampling techniques, while quantitative data were collected from 92 respondents through questionnaires. The results showed that there were 24 species of food plants utilized, consisting of various growth forms dominated by herbs, trees, lianas, and shrubs. The highest Informant Consensus Factor (ICF) value of 0.99 indicates a strong agreement among the community regarding the use of plants as sources of carbohydrates and vegetables. The Relative Frequency of Citation (RFC) showed the highest value of 1 for Colocasia esculenta, Oryza sativa, Zea mays, Musa sp., Carica papaya, Ipomoea aquatica, Ipomoea batatas, and Capsicum annuum. The highest Species Use Value (SUV) was found in Musa sp. with a value of 2.54. The family Musaceae had the highest Family Use Value (FUV) of 2.54, while the most utilized plant part was fruit (60.4%). The highest Fidelity Level (FL) value was found in Carica papaya, Durio zibethinus, Persea americana, Selenicereus undatus, Lansium domesticum, and Psidium guajava (100%), indicating high specificity of use. This study concludes that the utilization of local food plants in Gunungronggo Village is diverse, structured, and supported by strong local knowledge.
Struktur Komunitas Mangrove di Bale Mangrove Poton Bako Jerowaru Lombok Timur Saputra, Rizki Dwi; Idrus, Agil Al; Handayani, Baiq Sri
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1229

Abstract

The mangrove ecosystem in Bale Mangrove Poton Bako area has an important ecological and economic role for the people of East Lombok, but data regarding its community structure needs to be updated as a basis for management. This study aims to analyze the structure of the mangrove community in the area. The method used is the line transect and plot method spread across three observation clusters with plot sizes of 10x10 meters (trees), 5x5 meters (saplings), and 2x2 meters (seedlings). The results showed the presence of 5 mangrove species from 3 families, namely Avicennia marina, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, and Sonneratia alba. Based on species composition, the study area is dominated by Rhizophora mucronata (38%). The density of tree-level species (500-667 trees/ha) is categorized as “sparse”, but the canopy cover reaches 80% (very dense category) in accordance with the standards of the Minister of Environment Decree No. 201 of 2004. Rhizophora mucronata dominates Clusters I and II with the highest Importance Value Index (IVI) (151.33-211.21%), while Sonneratia alba dominates Cluster III (IVI 180.31%). This area exhibits high regeneration potential, with a seedling density of up to 22,500 individuals/ha under optimal environmental conditions (salinity 29-31 ppt; pH 7.2-7.6).
Validitas E-Modul Berbasis Problem Based Learning (PBL) pada Materi Fungi untuk Mengembangkan Kemampuan Berpikir Kritis Semiati, Dewi; Mawartiningsih, Lilik
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1237

Abstract

The limited availability of instructional materials that support learning focused on higher-order thinking skills in the fungi curriculum for 10th-grade high school students serves as the background for this study. This situation highlights the need to develop innovative instructional materials based on Problem-Based Learning (PBL). This study aims to develop a Problem-Based Learning (PBL)-based e-module on fungi and to determine its validity as a biology instructional material. The study employed the Research and Development (R&D) method using the 4D model, implemented through the define, design, develop, and disseminate stages. However, this study was conducted only up to the develop stage, excluding the disseminate stage, as it focused on product development and validity testing. The validity test was conducted by three validators, consisting of two lecturers specializing in biology content and instructional media and one high school biology teacher, using a Likert scale assessment instrument covering the aspects of content, presentation structure, language, and media. The validation results indicate that the developed e-module achieved an average validity score of 90.1%, classified as highly valid, comprising 87.8% for content, 88.0% for presentation structure, 93.3% for language, and 91.1% for media. Based on these results, the PBL-based e-module on fungi was found to have a very high level of validity (highly valid) as a biology teaching material.
Kajian Etnobotani Rempah sebagai Representasi Kearifan Lokal dan Pengetahuan Tradisional Masyarakat Desa Punten Kota Batu Herdiyanti, Aulinisa Gita; Bella, Aurelia Laudya; Hudayah, Nurul; Muhaimin, Fahrul Ghani; Firdausya, Syifa Nabila; Refdiana, Heni; Witanto, Anas Bagaskara; Mustikasari, Ayu Chandra; Kharisma, Nafi’ Windy; Mahanal, Susriyati
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1239

Abstract

The use of spices by local communities represents an important aspect of local wisdom, reflecting the relationship between humans and biological resources. This study aims to identify the diversity of spices and analyze their utilization levels as a representation of traditional knowledge in Punten Village, Batu City. This research employed a mixed-methods approach with an exploratory sequential design integrating qualitative and quantitative methods. Qualitative data was obtained through interviews with informants determined using purposive sampling techniques followed by snowball sampling, then observations and documentation were collected as supporting data. Meanwhile, quantitative data were obtained through a questionnaire survey distributed to 95 respondents determined using the Slovin formula with a 10% margin of error. Data were analyzed descriptively for qualitative data and using ethnobotanical indices for quantitative data, including Informant Consensus Factor (ICF), Relative Frequency of Citation (RFC), Species Use Value (SUV), Family Use Value (FUV), Plant Part Use Value (PPUV), and Fidelity Level (FL), to assess the importance and utilization of spices. The results showed 14 spice species belonging to eight families, with Zingiberaceae as the dominant family. The highest ICF value was found in the culinary category (0.98), while the highest RFC (0.96) and SUV (1.68) values were observed in Zingiber officinale. The Zingiberaceae family had the highest FUV value (0.91), and rhizomes were the most utilized plant parts (42.7%). These findings highlight that spice utilization in Punten Village reflects strong traditional knowledge and demonstrates the potential for biodiversity conservation based on local wisdom.
Pengaruh Pemberian Pupuk Organik Cair (POC) dari Kulit Durian (Durio zibethinus Murr.) terhadap Pertumbuhan Tanaman Sawi Hijau (Brassica juncea L.) Simanjuntak, Yolanda Sulastri; Harahap, Fauziyah; Nusyirwan, Nusyirwan
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1247

Abstract

This study aims to determine the effect of Liquid Organic Fertilizer (POC) from durian peel (Durio zibethinus Murr.) on the growth of mustard greens (Brassica juncea L.). This study was conducted at the Greenhouse, Medan State University using a non-factorial Completely Randomized Design (CRD) consisting of four treatments with six replications, resulting in 24 experimental units. The parameters observed included plant height, number of leaves, root length, fresh weight, and dry weight of the plant. Based on the results of the study, it was found that the levels of nutrients contained in the liquid organic fertilizer from durian peel waste were 0.93% C-Organic, 0.36% Total Nitrogen, 0.21% P2O5, 0.05% K2O, and 0.02% Total Ca. The application of liquid organic fertilizer from durian peel waste had a significant effect (p <0.05) on all growth and production parameters of mustard greens (Brassica juncea L.). Based on the results of the Duncan's Multiple Range Test (DMRT), the most optimal treatment for mustard greens growth was a concentration of 300 ml of Organic Fertilizer (POC) and 1,000 ml of water. This indicates that the nutrient absorption effectiveness of durian peel POC is sufficient to support maximum vegetative plant growth.
Keanekaragaman Tumbuhan Ritual dalam Tradisi Megengan : Kajian Etnobotani di Kampung Budaya Polowijen Kota Malang Rahmawati, Windi; Khikmaturrosyida, Nabila; Ramadhina, Cahya Silvika; Muhaimin, Fahrul Ghani; Mustikasari, Ayu Chandra; Kharisma, Nafi’ Windy; Firdausya, Syifa Nabila; Refdiana, Heni; Witanto, Anas Bagaskara; Mahanal, Susriyati
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1248

Abstract

Megengan is a ritual of gratitude and communal prayer practiced by the Javanese community, utilizing various plant species as the main components in the cultural procession to welcome the holy month of Ramadan. This study aims to identify, analyze, and document the plant species used, their utilization, symbolic meanings, as well as conservation efforts within the Megengan tradition in Kampung Budaya Polowijen. This research employed a qualitative approach with a descriptive-exploratory method. Data were collected through interviews, observations, and documentation involving traditional leaders and practitioners of the Megengan tradition. Key informants were determined using purposive sampling, which was then expanded through snowball sampling to obtain additional sources of information. Data were analyzed descriptively through the stages of data reduction, data presentation, and conclusion drawing. The results showed that there are 12 plant species from 11 families utilized in the Megengan ritual procession, with plant parts used including flowers, leaves, fruits, seeds, and rhizomes. These plants serve both practical functions and philosophical meanings as spiritual and social symbols. Conservation efforts are reflected in the sources of the plants, which are mostly obtained from community cultivation. The conservation status of the identified species is largely categorized as not evaluated (50%), indicating that these species have not yet been scientifically assessed by official conservation institutions, thus further research is needed to support the preservation of biocultural knowledge. These findings highlight the role of the Megengan tradition in preserving ethnobotanical knowledge and maintaining harmony between the community and the environment.
Kajian Etnobotani Tumbuhan Ritual dalam Tradisi Kenduren Jagad : Eksplorasi Kearifan Lokal Masyarakat Andonosari, Pasuruan Pramudya, Syvangi Dwi; Nuramalia, Evi Sintia; Dasuha, Johanna Kartika Adventina P.; Muhaimin, Fahrul Ghani; Firdausya, Syifa Nabila; Refdiana, Heni; Witanto, Anas Bagaskara; Mustikasari, Ayu Chandra; Kharisma, Nafi’ Windy; Mahanal, Susriyati
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1261

Abstract

This study examines the use of plants in the Kenduren Jagad tradition in Andonosari Village, Pasuruan Regency as a form of community ethnobotanical practice. The method used is descriptive qualitative through interviews, observation, and documentation, with the determination of informants by purposive and snowball sampling and interactive model data analysis. The results of the study identified 23 plant species from 14 families, with a dominant herbaceous habitus (52%) compared to shrubs (48%). The use of plants is divided into three main patterns, namely as tumpeng food ingredients, ancak decorations, and symbolic in ritual processions. Plants used as food ingredients include broccoli, bean sprouts, and carrots, while most other types are used as ancak decorations to beautify the ritual appearance based on variations in shape and color. Symbolically, plants represent the values ​​of gratitude, prosperity, and balance in community life. Plant parts used include flowers, fruits, leaves, tubers, seeds, and pods, with the dominance of fruit and leaf organs. All plants are obtained through local cultivation with a relatively safe conservation status (least concern and not evaluated), so as not to put pressure on wild natural resources. This pattern demonstrates the close relationship between cultural practices and locally based biological resource management. Thus, the Kenduren Jagad tradition serves as a model for biocultural conservation that not only preserves biodiversity but also maintains the sustainability of the community's ethnobotanical knowledge.

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