cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Safnowandi
Contact Email
safnowandi_bio@ikipmataram.ac.id
Phone
+6287865818141
Journal Mail Official
bioscientist@ikipmataram.ac.id
Editorial Address
Jalan Pemuda Nomor 59A Gedung Catur Lantai 1 Mataram Nusa Tenggara Barat 83125
Location
Kota mataram,
Nusa tenggara barat
INDONESIA
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 1,464 Documents
 143   144   145   146   147 
Identifying the Effects of Online Gaming Addiction on Students’ Academic Behavior in Biology Classes at SMA Negeri 5 Palu Nikmah Nur Qoiriyah; Samsurizal `M. Suleman; Syech Zainal; Lilies; Moh. Sabran; Raya Agni
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
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.v14i2.20459

Abstract

This study aims to identify the impact of online game addiction on students’ academic behavior in Biology learning at SMA Negeri 5 Palu. A descriptive qualitative method was employed. The research subjects consisted of four Grade X Merdeka 2 students, selected purposively, and a Biology teacher. Data were collected through interviews and documentation. This study addresses a gap in previous literature by examining students’ subjective experiences regarding the effects of online game addiction on academic behavior in Biology classes at SMA Negeri 5 Palu. The findings indicate that online game addiction affects three aspects of students’ academic behavior: decreased classroom participation, lack of discipline in submitting assignments, and potential disruption of academic achievement. Among these aspects, students’ lack of discipline in completing assignments emerged as the most prominent and evident impact. This was supported by the consistency of interview responses from all informants, the normalization of rule violations, and confirmation from the Biology teacher that, without reminders, assignment submission could be delayed for up to one week. It can be concluded that interventions aimed at improving students’ discipline, time management, and daily limits on online gaming are needed through collaboration among schools, teachers, and parents.
Types and Abundance of Microplastics in African Catfish (Clarias gariepinus) from Sumber Agung Village, Parigi Moutong Mudrikah Tus Sa'diah; Fatmah Dhafir; Masrianih; Sutrisnawati; Bustamin; Rafiqa
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
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.v14i2.20493

Abstract

This study aimed to determine the types and abundance of microplastics in African catfish (Clarias gariepinus) collected from aquaculture ponds and a river in Sumber Agung Village. A descriptive research design was employed using both qualitative and quantitative approaches. A total of 10 catfish aged approximately two months were used as samples, consisting of five individuals from aquaculture ponds and five individuals from the river. Digestive tract samples were digested using 10% KOH solution for 96 hours to separate microplastic particles, followed by filtration, identification, and particle counting. The results showed that microplastics were detected in all catfish samples. Three types of microplastics were identified: fibers, films, and fragments. The abundance of microplastics in catfish from aquaculture ponds was 103.6 particles/individual, which was higher than that observed in catfish from the river, at 57.6 particles/individual. Fragments were the dominant microplastic type in pond-derived catfish, whereas fibers predominated in river-derived catfish. Differences in microplastic abundance were influenced by the characteristics of the aquatic environment, with ponds having limited water circulation that may facilitate microplastic accumulation. These findings indicate that catfish have the potential to serve as bioindicators of microplastic pollution in both aquaculture systems and natural freshwater environments. However, microplastic identification in this study was based solely on microscopic observation; therefore, the polymer composition of the detected microplastics could not be confirmed.
Morphometric Characteristics of Freshwater Shrimp in Lotic and Lentic Habitats of Ogan Ilir Regency, South Sumatra Stilaf Terbit Galih Walsandy; Arum Setiawan; Kodri Madang
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
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.v14i2.20603

Abstract

This study aimed to analyze the length–weight relationship and morphometric variation of three freshwater shrimp species from lotic and lentic habitats in Ogan Ilir Regency, South Sumatra, Indonesia. The study was conducted from November 2025 to May 2026 using purposive sampling at six aquatic stations, comprising three lotic and three lentic habitats. A total of 300 shrimp specimens were collected using baited traps (bubu) and hand nets. The observed parameters included total length and body weight. Length–weight relationships were analyzed using the allometric equation W = aLᵇ, whereas morphometric variation was evaluated using Principal Component Analysis (PCA). The results showed that Palaemon carcinus exhibited positive allometric growth in both lotic (b = 5.805) and lentic habitats (b = 6.963). Similarly, Macrobrachium rosenbergii showed positive allometric growth in lotic (b = 8.230) and lentic habitats (b = 3.973). In contrast, Macrobrachium nipponense demonstrated positive allometric growth in lotic habitats (b = 4.960) but negative allometric growth in lentic habitats (b = 0.899). PCA revealed that most morphometric variation was explained by the first principal component (PC1), indicating a strong association between total length and body weight. These findings suggest that habitat type, particularly differences between lotic and lentic aquatic systems, influences growth patterns and morphometric variation in freshwater shrimps in South Sumatra.
Potential of Bacillus spp. Isolates as Biological Control Agents Against Rhizoctonia solani, the Causal Agent of Sheath Rot in Maize (Zea mays L.) Salma Alfiani Nadiva; Yenny Wuryandari; Tri Mujoko
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
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.v14i2.20689

Abstract

This study aimed to evaluate the effectiveness of laboratory-collected Bacillus spp. isolates against Rhizoctonia solani, the causal agent of maize sheath blight, under both in vitro and in vivo conditions, as available information on their efficacy remains limited. The in vitro assay was conducted using the dual culture method with five Bacillus spp. isolates, namely Bcz-14, Bcz-16, Bcz-20, Bcz-21, and Bcz-30, to assess their inhibitory activity against R. solani. The results showed that all isolates were able to inhibit pathogen growth, although the percentage of inhibition varied among isolates. Isolate Bcz-14 exhibited the highest mean inhibition, while isolates Bcz-16 and Bcz-21 were selected for the in vivo assay based on a combination of mean inhibitory activity and consistency across replications. The in vivo assay was conducted using the two selected isolates with different application times, namely seven days before planting and at planting. The results indicated that treatment B1T1, consisting of Bcz-16 applied seven days before planting, showed a greater tendency to suppress disease development, as indicated by a longer incubation period and the lowest disease intensity of 17.78%. These findings suggest that isolate Bcz-16 has potential for further development as a biological control candidate for maize sheath blight. However, further evaluation under field conditions is required to confirm its effectiveness.

Page 147 of 147 | Total Record : 1464

 143   144   145   146   147 

Filter by Year

2013 2026


Reset
Filter By Issues
All Issue Vol. 14 No. 2 (2026): June Vol. 14 No. 1 (2026): March Vol. 13 No. 4 (2025): December Vol. 13 No. 3 (2025): September Vol 13, No 3 (2025): September Vol. 13 No. 2 (2025): June Vol. 13 No. 1 (2025): March Vol. 12 No. 2 (2024): December Vol 12, No 2 (2024): December Vol. 12 No. 1 (2024): June Vol 12, No 1 (2024): June Vol 11, No 2 (2023): December Vol. 11 No. 2 (2023): December Vol 11, No 1 (2023): June Vol 10, No 2 (2022): December Vol 10, No 1 (2022): June Vol 9, No 2 (2021): December Vol 9, No 1 (2021): June Vol 8, No 2 (2020): December Vol 8, No 1 (2020): June Vol 7, No 2 (2019): December Vol 7, No 1 (2019): June Vol 6, No 2 (2018): December Vol 6, No 1 (2018): June Vol 5, No 2 (2017): December Vol 5, No 1 (2017): June Vol 4, No 2 (2016): December Vol 4, No 1 (2016): June Vol 3, No 2 (2015): December Vol 3, No 1 (2015): June Vol 2, No 1 (2014): June Vol 1, No 2 (2013): December Vol 1, No 1 (2013): June More Issue