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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 1,428 Documents
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Analisis Tingkat Keparahan Penyakit pada Daun Tanaman Pangan dengan Menggunakan Software ImageJ dan Plantix Imam Rosadi; Cici Lis Qurrotun Ayuni; Indah Nurcahyani; Muhammadiyah Muhammadiyah; Irene Putri Priscilla Butar-Butar; Linda Oktavianingsih
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.4575

Abstract

Plant disease is the physiological process that causes them to become abnormal. Plant diseases attack vegetative organs in the form of roots, stems, and leaves or generative organs of these plants. Plants become sick due to fungi, bacteria, or viruses that cause many symptoms of disease in plants, such as yellow spots, infection, and nitrogen deficiency (N). The purpose of this case study was to determine the severity of disease on gourds leaves (Lagenaria siceraria), bitter melon leaves (Momordica charantia), cassava leaves (Manihot esculenta), purple eggplant leaves (Solanum melongena), and terung pipit leaves (Solanum torvum) by using the Plantix software and ImageJ software methode. Based on the results of this case study, it was found that the severity of disease using ImageJ software on gourds leaves (4.56%), bitter melon leaves (1.93%), cassava leaves (8.49%), purple eggplant leaves (49.45%) and terung pipit leaves (14.88%) which are generally food crops are caused by viruses and fungiand based on the results of the Plantix software data, the causes of gourds leaves, bitter melon leaves, cassava leaves, purple eggplant leaves and terung pipit leaves respectively are caused by downy mildew, fungus, whitefly, leaf spot algae and leafhoppers.
Studi Histopatologi Organ Insang pada Ikan Nila (Oreochromis niloticus) Tri Suwarno Handoko Noviyanto; Angela Mariana Lusiastuti; Baiq Hana Susanti
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.4732

Abstract

This study aims to determine the abnormal tissue structure of the gill organs in Tilapia (Oreochromis niloticus) due to infection. The type of research used is experimental using a randomized design. The research sample used was tilapia infected with the disease, taken from a nursery pond with poor water quality. This can be seen from the macroscopic characteristics of the sick tilapia. This research was conducted at the Histopathology and Pathology Laboratory of the Sempur Freshwater Aquaculture Research Institute, Bogor. Research procedure by making tissue preparations or histological preparations for gill organs. Data analysis by observing and identifying, both macroscopically and microscopically. The results of data processing are presented in the form of a comparison of abnormal tissue images with normal tissue, after going through observation and identification activities. Based on the research that has been done, histopathological studies conducted on the gill organs of Tilapia, indicated that the fish had been infected with the disease. This can be seen from the brownish color of the gills, slow movement, and difficulty breathing. Infection can be caused by pathogens or the influence of the cloudy water quality of the Tilapia fish's habitat.
Analisis Penguasaan Konsep Siswa dalam Menyelesaikan Soal Miskonsepsi pada Mata Pelajaran Biologi Titi Laily Hajiriah; Baiq Muli Harisanti
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.5153

Abstract

This study aims to describe students' mastery of concepts in solving misconceptions in biology subjects. The sample used is grade 12 students majoring in science  and using purposive sampling as a sampling technique. The instrument used is in the form of open test questions containing misconceptions that have been validated by 2 experts and are considered valid because they come from a collection of misconceptions with ISBNs. Data analysis used in this study is the CRI technique. The results of the analysis of the research data can be concluded that the level of understanding of students through their CRI analysis is at a level > 2.5 with the category of misconceptions. Based on the results of the study, it can be concluded that grade 12 science students have very low mastery of concepts that trigger misconceptions so that it is necessary to review certain concepts that have been studied.
Pengembangan Flash Flipbook sebagai Media Pembelajaran pada Submateri Peranan Jamur di Kelas X SMA Nury Kamelia; Laili Fitri Yeni; Wolly Candramila
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.4999

Abstract

This study aims to develop a flash flipbook as learning media followed by testing its validity and reliability. The development model used is the ADDIE model (Analyze, Design, Development, Implementation, Evaluation) which is focused on the first 3 stages, namely Analyze, Design, and Development. Validation activities include instrument validation by 2 validators using the Guttman scale and media validation by 5 validators with 4 rating scales based on the Likert scale. Validation is done by filling out a closed questionnaire. Flash flipbook media validation assesses 3 aspects, namely aspects of format, content, and language. Analysis of the results of the flash flipbook validation using the Aiken's V method and the reliability test using the ICC (Intraclass Correlation Coefficient). This study shows that the validation results with the Aiken standard of 0.87 with 1 improvement and the ICC reliability results are 0.985 in the very good category. The addition of the literatures with the latest issue can increase the feasibility of this media. This flash flipbook can provide good visualization for students so as to provide variety in learning activities.
Pengaruh Variasi Masa Pengobatan Obat Anti Tuberkulosis (OAT) terhadap Billirubin dalam Urine Penderita Tuberkulosis Metode Carik Celup Riska Novitasari; Urip Urip; Erlin Yustin Tatontos; Aurira Thrisna Dwi Aprianti
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.5668

Abstract

Treatment of Tuberculosis using Anti Tuberculosis Drugs (OAT) has a hepatotoxic effect that can cause liver function disorders, one of which is bilirubin. Examination of bilirubin can use blood and urine. Qualitative and semi-quantitative examination of bilirubin in urine by diazo reaction using the dipstick or dipstick method is widely used because it is fast, more practical, and more sensitive. The purpose of this study was to determine the effect of variations in the treatment period of Anti Tuberculosis Drugs (OAT) on bilirubin in the urine of tuberculosis patients. This research is an analytical observational research. The sample in this study amounted to 20 people in the initial and follow-up treatment periods. Urine samples in patients with tuberculosis were examined for urine bilirubin levels using the dipstick method. The results showed that the level of bilirubin in the urine qualitatively in the early stages of treatment had a positive value, namely 5 out of 9 tuberculosis patients (56%) with a positive level of 1 (+1) semi-quantitatively. The level of bilirubin in the urine qualitatively in the advanced stage of treatment has a positive value, namely 1 out of 11 tuberculosis patients (9%) with a positive level of 1 (+1) semi-quantitatively. The results of the Chi-Square bilirubin test in urine qualitatively and semi-quantitatively showed the value of p = 0.024 < = 0.05. The conclusion is that variations in the treatment period of Anti Tuberculosis Drugs (OAT) have an effect on bilirubin in the urine of tuberculosis patients.
Tinjauan Karakteristik Sumber Daya dan Strategi Pengelolaan Ikan Semah Tor tambroides (Bleeker, 1852) Mirna Dwirastina; Arif Wibowo
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.5129

Abstract

Semah fish is a fish that has high economic value. The population of this fish has decreased drastically. Based on the studies that have been carried out, the problem of decreasing the population of Semah Fish raises management efforts that can ensure the sustainability of fish resources. The method used is direct observation in the field, fisherman's catch, and fish identification is carried out in molecular or DNA sequences. This review was conducted in 2022 on research that has been carried out in Sungai Manna, South Bengkulu Regency, and in Batang Tarusan, Pesisir Selatan Regency in 2012. The aim is to review and review the results of research that has been carried out related to the characteristics of fish management strategies and Semah Fish. . The results of the review on the study showed that the Semah Fish that lived in the Semangka River (Lampung Province), Manna River (Bengkulu Province), and Batang Tarusan River (West Sumatra Province) were identified as Tor tambroides species and constituted an integrated population or reproductive unit in this area. each of these rivers. In addition, it was found that several management efforts were carried out to maintain fish habitat, recommending that the Semah Fish conservation area in the Manna River can be determined, especially the Negara Kaya – Timun Island, the limitations of the size of fish that can be caught, which is more than 245 mm standard for the Manna River. , is greater than 206.6 mm for Batang Tarusan River, and regulates the fishing season in April and September.
Penggunaan Modul Elektronik Berbasis Isu Sosiosaintifik untuk Meningkatkan Persepsi Siswa tentang Bioteknologi Fitri Husni Mardiyah; Widi Purwianingsih; Rini Solihat
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.5402

Abstract

Currently, the world has faced a new normal era, many schools have started to conduct limited face-to-face learning. But unfortunately, student learning hours at school are very limited. Students are required to be able to study independently outside of school hours. The module is one of the learning tools that can be accessed anywhere without being bound by time. On the other hand, at this time technology is developing rapidly, one of which is technology in the field of biology or can be called biotechnology. The development of biotechnology has an impact on life. Many people do not have a good perception of biotechnology. There needs to be an increase in community competence, one of which is through the field of education or specifically is that students can have a good perception based on scientific decisions through socio-scientific issues. This study aims to analyze the effectiveness of using electronic modules based on socioscientific issues in increasing students' perceptions of biotechnology. This study uses a quasi-experimental design method. The research design used was a non-equivalent control group design. The sample in this study was grade 12 students consisting of 120 students who were determined by purposive sampling technique. The results of this study indicate that there are significant differences in students' perceptions of biotechnology after using the module. The Mann Whitney test on the value of students' perceptions of biotechnology shows a number (2-tailed = 0.003) < (0.05) which means that learning using electronic modules based on socioscientific issues has an influence on students' perceptions of biotechnology.
Analisis Pengelolaan Sampah Akibat Pertumbuhan Penduduk dan Perkembangan Pembangunan di Kelurahan Cipare Kota Serang Enggar Utari; Maudi Fatimatuzzahra; Mariana Pramaisyella; Siti Jaedah; Tiara Triana
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.5122

Abstract

The purpose of this study is to analyze the impact of waste on the environmental conditions of the community, and to find out the proper management of waste due to massive population growth and development, as well as population activities that have an impact on domestic waste. This research belongs to the type of descriptive qualitative research, with data collection techniques by interviewing the Cipare Village, observation of research locations with assessment instruments that have been prepared, as well as secondary data obtained from Serang City in numbers. The conclusion of this research is population growth and development development have a very detrimental impact, especially on the environment around us, namely: garbage, excessive accumulation of garbage can cause various diseases, ecosystem imbalances, flood disasters because the flow of sewers is blocked by garbage, and inconvenience. in doing activities. Therefore, proper waste management must be carried out immediately to create a healthy environment. For this reason, local community participation is needed to carry out waste management properly and correctly, starting to sort out organic and inorganic waste, and also not to throw garbage indiscriminately.
Kualitas Bakteriologis Sumber Mata Air Mumbul Sari Kabupaten Lombok Utara Fauzi Mahendra; Nining Purwati; Dadan Supardan
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.5244

Abstract

Water is the main and most important need for living things. The water consumed must meet the physical, chemical, bacteriological requirements, and be free from Coliform bacteria contamination. This research is a qualitative descriptive study that aims to determine the bacteriological quality of the spring water in the Mumbul Sari Village community, Bayan District, North Lombok Regency. The data collection technique used a filter membrane with Colony Forming Units (CFU/100ml). The research data were analyzed descriptively. The results showed that the Mumbul Sari spring in North Lombok Regency was contaminated with Coliform and Escherichia coli bacteria with values exceeding the quality standards set by the Ministry of Health of the Republic of Indonesia. The MPN Coliform value of springs used by women is higher than that of springs used by men (300 CFU/100ml > 250 CFU/100 ml). Similarly, the number of Escherichia coli bacteria (50 CFU/100ml > 12 CFU/100ml).
Efektivitas Limbah Tongkol Jagung sebagai Campuran Bahan Dasar Pembuatan Baglog terhadap Percepatan Tumbuh Miselium Jamur Tiram (Pleurotus ostreatus) Ni Kadek Dwityasari Anggraeni; Ismail Efendi; Baiq Mirawati
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): 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.v10i1.4951

Abstract

Corn is the second staple food after rice with a large area of cultivation in West Nusa Tenggara Province, especially in Sumbawa Regency, corn production in 2019 reached 697,210 tons, in a harvested area of 110,035 ha, productivity reached 63.36 kw/ha. Until now, corncob waste has not been optimally utilized, because its economic value is very low. The purpose of this study was to determine the effectiveness of corncob waste as a mixture of basic ingredients in making baglog of oyster mushrooms (Pleurotus ostreatus). This type of research is a pure experimental research (true experiment). The research approach used is quantitative. The research design used was Completely Randomized Design (CRD), using 4 treatments and 5 replications, so that 20 treatment replications were obtained. The results showed that the average acceleration of mycelium length growth in different treatments showed significantly different numbers, namely 2.03 cm produced by P3 treatment (25% wood sawdust + 75% corncob powder).

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