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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 52 Documents
Search results for , issue "Vol. 6 No. 1 (2026): January" : 52 Documents clear
Inventarisasi Tumbuhan Famili Fabaceae di Desa Tabing Rimbah Kecamatan Mandastana Kabupaten Barito Kuala Mawafda, Audi Athfin; Biyatmoko, Danang; Halang, Bunda
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.950

Abstract

Indonesia is one of the countries with the highest level of biodiversity in the world, including plant diversity from the Fabaceae family which has an important role ecologically and economically. The Fabaceae family contributes to maintaining soil fertility through nitrogen fixation capabilities, and is widely used as a source of food, medicine, animal feed, and shade plants. The existence of Fabaceae plants can be found in various types of ecosystems, such as swamps, forests, and agricultural land. This study aims to inventory the diversity of plant species of the Fabaceae family found in Tabing Rimbah Village, Mandastana District, Barito Kuala Regency, South Kalimantan. The research method used is an exploratory approach through direct observation in the field, recording morphological characters, photo documentation, and species identification using taxonomic literature and PlantNet applications. The results of the study showed that as many as 16 species of plants from the Fabaceae family were found with variations in habitus in the form of herbs, shrubs, and trees. The diversity of these species shows that the environmental conditions in Tabing Rimbah Village are quite supportive of the growth and development of Fabaceae plants. These findings affirm the importance of biodiversity inventory as a basis for sustainable conservation and management of local biological resources.
Identifikasi Serangga Semak di Sekitar Pusat Pendidikan Konservasi Alam Bodogol, Bogor, Jawa Barat Farida, Nur Is; Parmadini, Aulia Mustika; Ardiana, Syahkila Cahya; Syahbani, Abdul Haris Anugrah; Isfaeni, Hanum; Ramadani, Rosi Fitri
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.960

Abstract

This study aims to identify shrub insect species around the Bodogol Nature Conservation Education Center (PPKA Bodogol), Bogor, West Java. The research uses an exploratory descriptive approach by sampling through the free roaming method on shrub vegetation. Specimens were collected using sweeping net and hand collecting techniques from morning to noon, then analyzed descriptively based on the number of individuals, the number of species, and the composition of the order and family. The results of the study recorded 20 species from 8 orders, with the dominance of Orthoptera (7 species) and Lepidoptera (4 species). The families Acrididae and Scarabaeidae are the most abundant taxons, while Xylotrupes gideon is the species with the highest number of individuals. The dominance of these families and species indicates that the vegetation of the PPKA Bodogol bush provides habitat conditions that support herbivorous and detritivore insects that play an important role in energy flow and ecosystem stability. These findings show that shrub vegetation has a strategic role as a functional habitat for insects and can be used as basic data in planning, management, and conservation of insect biodiversity in conservation areas.
Identifikasi Mikroplastik pada Insang dan Saluran Pencernaan Ikan Nila (Oreochromis niloticus) di Danau Toba Kabupaten Simalungun Situmorang, Erika Putri Octavani; Prastowo, Puji; Sudibyo, Mufti
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.964

Abstract

Microplastic pollution in the waters of Lake Toba has the potential to accumulate in aquatic biota, including tilapia (Oreochromis niloticus) cultivated in floating net cages. The presence of microplastics in aquatic organisms is an important concern, because it has the potential to disrupt the balance of aquatic ecosystems and pose a risk to food security for humans. This study aims to identify the shape and color of microplastics in the gills and digestive tract of tilapia, as well as analyze the differences in abundance between the two organs. The research was carried out in June-August 2025 using a quantitative descriptive method. Fish samples were taken from three stations in the waters of Lake Toba, Simalungun Regency, namely tourist areas, boat transportation activities, and residential areas. Microplastic identification was performed visually using a microscope after the degradation of organic matter by the Fenton method. The results showed that the abundance of microplastics in the gill organs was 32 particles/individual, while in the digestive tract as many as 31 particles/individual. The microplastics found are dominated by fibers, fragments, and films with the main colors being green, black, red, brown, and transparent. The results of the independent sample t-test showed a value of p = 0.787 (p > 0.05) which indicated that there was no significant difference in microplastic abundance between the gills and the gastrointestinal tract. These findings confirm that microplastics have been distributed relatively evenly in tilapia organs, so that they have the potential to have an impact on the health of Lake Toba's aquatic ecosystem and food safety from aquaculture fisheries.
Identifikasi Mikroplastik pada 5 Spesies Ikan Laut di TPI Tanjung Beringin Kabupaten Serdang Bedagai Tarigan, Beatrice Loise; Sitompul, Aida Fitriani; Sudibyo, Mufti
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.965

Abstract

Microplastic pollution in the marine environment is a global issue that has the potential to threaten aquatic organisms, including marine fish consumed by humans. The presence of microplastics in fish can impact the health of marine ecosystems and risk entering the human food chain. This study aims to analyze the shape, color, abundance, and differences in the abundance of microplastics in the gills and digestive tract of marine fish for consumption. The study was conducted in June-August 2025 at the Tanjung Beringin Fish Farming Site (TPI) in Serdang Bedagai Regency. The sample consisted of five fish species, namely Sardina pilchardus, Selaroides leptolepis, Rastrelliger brachysoma, Parastromateus niger, and Euthynnus affinis, each with 10 individuals/fish species. Microplastics were isolated from the gills and digestive tract, then identified based on the shape and color of the microplastics using a stereo microscope. Microplastic abundance data were analyzed using a one-way ANOVA test. The results showed that the microplastics found were dominated by fibers (56%), fragments (42%), and films (2%). The colors of the identified microplastics included red (81%), black (73%), green (37%), blue (6%), and transparent (3%). The highest microplastic abundance was found in the digestive tract of Euthynnus affinis (41.9 particles/individual), while the lowest was found in the gills of Rastrelliger brachysoma (26.5 particles/individual). The ANOVA test showed significant differences in microplastic abundance (p < 0.05), especially between Sardina pilchardus and Parastromateus niger, and between Selaroides leptolepis and Euthynnus affinis.
Peningkatan Keterampilan Proses Sains dan Hasil Belajar Siswa melalui Model Pembelajaran Jelajah Alam Sekitar (JAS) Imran, Ali; Royani, Ida; Masiah, Masiah
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.966

Abstract

The background of this study is to utilize the school environment as a learning medium to implement innovative learning processes and shape students' character, that learning can be done anywhere and anytime as long as it follows the existing learning system references. The purpose of this study is to improve science process skills and student learning outcomes through a learning model of exploring the environment. The type of research used is Class Action Research (PTK). This research was carried out in class XD with a total of 30 students. Data analysis techniques use quantitative and qualitative analysis techniques. The results of the research from cycle I to cycle II of students' science process skills in the observing aspect increased with the very good category, the classification aspect with the good category, the predictive aspect with the good category, the concluding aspect with the very good category, and the communication aspect with the very good category. The learning outcomes of students in the first cycle were obtained by 11 students who did not reach the KKM >70, and in the second cycle 4 people. Thus, it can be concluded that the Exploring the Environment (JAS) learning model can improve science process skills and student learning outcomes.
Etnobotani Rumah Adat Suku Batak Toba di Kecamatan Sianjur Mula-Mula Kabupaten Samosir, Sumatera Utara Pasaribu, Ramatio; Harsono, Tri
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.981

Abstract

This study aims to uncover and document the belief system (cosmos), local knowledge system (corpus), and the practice of plant utilization (praxis) in the traditional house of the Toba Batak Tribe. This research was carried out so that hereditary cultural knowledge about plants in the traditional house of the Toba Batak Tribe would not become extinct and would maintain its culture. This research was conducted in 2 villages in Sianjur Mula-Mula District, namely Sari Marrihit Village and Habeahan Naburahan Village. The research method is descriptive, qualitative, and quantitative. Data collection was carried out through semi-structured interview techniques, participatory observation, and documentation. The results of the study show that the Toba Batak Tribe believes that every plant used in traditional houses has a symbolic meaning, such as hope for sustenance, health, protection, harmony, unity, and sustainability of offspring. There are five species of plants from four families that are used and dominated by the Arecaceae family. The most widely used part of the plant is the trunk with the habitus of the tree. Plant processing is generally carried out by drying and the largest use is the interior elements of traditional houses. These findings show that the use of plants in the traditional house of the Toba Batak Tribe is not only functional, but also full of cultural values and local wisdom.
Keanekaragaman Serangga Berpotensi Penyerbuk pada Tanaman Jambu Biji (Psidium guajava L.) Ivanka, Della; Prastowo, Puji
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1000

Abstract

Pollinator insects have an important role in the success of plant reproduction, but information on the diversity of pollinating insects in guava plants in Tanjung Anom Village is still limited. This study aims to determine the diversity, dominance, distribution pattern, and differences in the presence of potentially pollinating insects in guava plants (Psidium guajava L.) between morning and evening in Tanjung Anom Village, Pancur Batu District, Deli Serdang Regency. The research was carried out from June to August 2025. The selection of sample trees was carried out by purposive sampling, while the observation of pollinating insects used the scan sampling method which was carried out four times with an interval of one week in the morning and evening. The results of the study show that there are nine species of insects with potential pollinators that belong to three orders and four families. The level of diversity is classified as moderate (H' morning = 1.80; H' afternoon = 2.08), while the dominance level was low (C morning = 0.16; C afternoon = 0.11). Distribution pattern analysis showed that five species had a grouping pattern, namely Ischiodon scutellaris, Apis cerana, Tetragonula laeviceps, Xylocopa confusa, and Nomia sp., while four species showed a uniform distribution pattern, namely Anomala sp., Eumerus sp., Apis dorsata, and Xylocopa latipes. The results of the t-test showed a significant difference in the presence of pollinating insects between morning and evening with a p value of < 0.05. These findings show that the difference in the time of daily activity affects the structure of the pollinating insect community in guava plants. Therefore, the results of this study can be used as the basis for agroecosystem management, especially in the regulation of cultivation practices to increase pollination effectiveness and plant productivity.
Studi Ekologi Serangga Berpotensi Hama pada Tanaman Jambu Biji (Psidium guajava L.) di Desa Tanjung Anom Kecamatan Pancur Batu, Deli Serdang Citra, Umi Diana; Prastowo, Puji
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1001

Abstract

Pest attacks are one of the main challenges in the management of guava plantations that can hinder plant productivity. This study aims to determine the diversity, dominance, distribution pattern, and association of insects with potential pests in guava plants (Psidium guajava L.) in Tanjung Anom Village, Pancur Batu District, Deli Serdang Regency. The research was carried out from June to August 2025. The selection of tree samples was carried out by purposive sampling, insect observation using the census method, and insect collection using the hand sorting and yellow sticky trap method which was carried out four times. The results of the study found 2,848 insect individuals from 10 species, 8 families, and 3 orders. The value of the diversity index (H') was 1.67 in the medium category, while the dominance index (C) was 0.22 in the low category. The distribution pattern of insects includes clustered distribution (5 species, namely Bemisia tabaci, Aphis gossypii, Ferrisia virgata, Planococcus sp., and Metisa sp.), uniform (4 species, namely Strepsicrates sp., Bactrocera dorsalis, Bothrogonia sp., and Empoasca sp.), and random (1 species, namely Siphanta sp.). Associations showed that there were 47% of very high associations (Oi = 1) and 4% of very low associations (Oi = 0) indicating no association.
Air Cucian Beras sebagai ZPT Hidroponik Dewi, Lussana Rossita; Juniarti, Lina Wahyu; Rahayu, Praptining
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1008

Abstract

This study aims to examine the possibility of rice laundry water as a source of ZPT and additional nutrients in hydroponic systems. The method used in this study is a narrative review with a focus on scientific articles published between 2015-2025 that discuss the potential of rice washing water to increase plant growth hydroponically. Rice washing water has the potential as a source of natural growth regulators and nutritional additives in hydroponic cultivation. The nutrient content in rice washing water will increase when its use is combined with other nutrients and processed by fermentation. Increasing nutrients in rice washing water will provide optimal results for hydroponic plant growth.
Keanekaragaman dan Kelimpahan Serangga di Perkebunan Teh PTPN IV Tobasari Kecamatan Pamatang Sidamanik Kabupaten Simalungun Napitu, Angel Tessalonika; Lubis, Khairiza; Lazuardi, Lazuardi
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 1 (2026): January
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i1.1022

Abstract

This study aims to analyze the diversity and structure of insect communities in tea plants (Camellia sinensis) as the basis for sustainable and environmentally friendly plantation management. The research was conducted at the PTPN IV Tobasari Tea Plantation using an observation method with the installation of yellow sticky traps at five observation points. The results of the study showed that 20 species of insects were found with a total of 402 individuals, with the most species, namely Bactrocera dorsalis. A diversity index value (H') of 2.52 indicates a moderate level of diversity, a dominance index (C) of 0.14 indicates the absence of dominating species, and an evenness index (E) of 0.84 indicates a relatively even distribution of individuals between species. Measured abiotic factors include an average temperature of 29.75°C, light intensity of 3921.17 lux, and wind speed of 6.48 m/s. Ecologically, the combination of H', C, and E values shows that the ecosystem of the Tobasari Tea Plantation is in a fairly stable condition with low to moderate levels of ecological stress, thus supporting the sustainability of the insect community.