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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 123 Documents
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Search results for , issue "Vol 12, No 1 (2024): June" : 123 Documents clear
Skrining Bakteri Lipolitik Pendegradasi Polystrene (PS) dari TPU Bonoloyo, TPS Makam Haji, dan Aliran Sungai Bengawan Solo Halim, Ilham Surya; Rahayu, Triastuti
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.11428

Abstract

Waste is an environmental problem caused by the activities of living things. The synthetic waste group or what is often found in the form of plastic and the like is a group of waste that is very difficult to degrade. This can be overcome by using lipolytic bacteria. This research aims to analyze lipolytic bacteria which can be used to biodegrade plastic waste in the Bonoloyo TPU, Makam Haji TPS, and the Bengawan Solo river flow. This research uses quantitative descriptive methods. Screening for lipolytic bacteria degrading polystyrene (PS) showed that the highest population of lipolytic bacteria isolated from public burial places of 15.6 x 104. Meanwhile, lipolytic screening with the highest average clear zone formed was 0.641 cm which came from TPS 1, then average -The highest average lipolytic index came from SBS 2 with a figure of 1.6525 cm, the largest average colony diameter came from TPS 1 soil samples at 0.45 cm. The degradative nature of bacteria on plastic above shows that the Bengawan Solo river has microbes with the highest ability compared to microbes from TPS and TPU, namely 22.42%. The degradation between TPU, SBS, and TPS is significantly the same. PS degradation in Bonoloyo TPU shows significant physical changes.
Analisis Parameter Kimia Kualitas Air Minum Ayam Petelur (Gallus domesticus) di Kabupaten Blitar dan Kajian Literatur Fitoremediasi Kadar Fluorida Yulianti, Eny; Wahyuningtyas, Titian Ajeng; Sholikhah, Badiatus; Yuliastuti, Rostiwi Endah; Royanudin, Moch; Nafi’ah, Sriani
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.8885

Abstract

Drinking water quality is a crucial factor that influences livestock productivity. Regular evaluation of the quality of livestock drinking water is an essential activity. Blitar Regency is known as a center for egg production from laying hens (Gallus domesticus). This study aims to evaluate the quality of livestock drinking water and provide a literature review regarding the potential for improvement through phytoremediation methods. This research method involves laboratory analysis and literature review. Laboratory analysis is carried out to determine the quality of water chemical parameters, then the results are compared with livestock drinking water standards regulated by Regulation of the Minister of Health of the Republic of Indonesia Number 32 of 2017. If a discrepancy is found with the standards, it is continued with a literature study regarding the use of phytoremediation methods as a solution. Analysis of chemical parameters, including ion levels, using a reagent kit with the help of Spectroquant Pharo 300 UV Vis spectroscopy. The results of the analysis involve iron, fluoride, manganese, nitrate, nitrite, cyanide, hardness, cadmium, zinc metal and sulfate. All parameters meet quality standards, except for Fluoride (F-) levels which exceed the threshold of 1.5 mg/L, caused by the use of groundwater sources or wells which have the potential to have higher mineral content than surface water. The potential impacts of high fluoride levels on laying hens include reduced egg production, impaired growth, reproductive disorders, decreased water consumption, and decreased body weight. The literature review highlights phytoremediation methods involving plants as an economical and effective solution. Afforestation, such as planting grass or bushes around livestock areas and wells, or through creating ponds with aquatic plants, can significantly reduce fluoride levels in livestock drinking water.
Karakterisasi dan Identifikasi Rhizobakteri Asal Mangrove Tanjung Pilawang sebagai Biokontrol dan Agen Hayati Pertumbuhan Tanaman Maatoke, Cornelia Dolfina; Gisisi, Deiby Elsa; Girsang, Yusi Firdawati
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.10133

Abstract

Rhizobacteria are a type of microbe that has an important role in providing nutrients to plants. Rhizobacteria live in symbiosis with plant roots, where their activity has a significant influence on plant growth and development. Various microbes that have the potential to stimulate plant growth are thought to reside in mangrove root areas. The aim of this research is to determine the type of rhizobacteria of the Tanjung Pilawang mangrove, Gura Village, Tobelo District, North Halmahera Regency which is capable of inhibiting the growth of the fungus Collectotricum capsici and dissolving phosphate to be used as a biocontrol and biological agent for plant growth. The research methods used include the isolation stage, selection and characterization stages, and identification stages. The results of the research showed that 11 isolates of rhizobacteria were isolated from Tanjung Pilawang mangrove soil, of these 11 isolates there were two isolates that had the potential to inhibit the growth of the pathogenic fungus Colletotricum capsici and were able to dissolve phosphate, where each isolate was able to provide a Dissolution Index (IP) value. the highest is 2.85 mm and 1.91 mm. After identification, the two isolates were identified as Bacillus subtilis (RTM 10) and Pseudomonas sp (RTM 06), so that these two bacteria have potential as biocontrol and biological agents for plant growth.
Aplikasi Pupuk Organik Cair Daun Ketapang dan Penambahan Kapur Dolomit pada Media Tercekam Garam untuk Pertumbuhan dan Hasil Panen Kentang Hitam (Plectranthus rotundifolius) Fatmawati, Mitha Amanda; Andriani, Vivin; Ajiningrum, Purity Sabila
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.10909

Abstract

Black potato production in Indonesia is limited, due to suboptimal cultivation techniques for black potato tubers. Potatoes are generally planted at an altitude above 1000 meters above sea level, because they require low temperatures during the planting process. The aim of this research is to determine the effect of applying liquid organic fertilizer (POC) from ketapang leaves and dolomite lime (CaMgCO3)2 with salt stress media on the growth and yield of black potato plants (Plectranthus rotundifolius). The type of experiment in this research was experimental research using a Randomized Group Design (RAK) which was carried out with 16 treatments, and was repeated 3 times. POC treatment of Ketapang leaves (K) with each concentration, namely K0 (0%), K1 (40%), K2 (60%), K3 (80%), and dolomite lime treatment (C) with each concentration , namely C0 (0g), C1 (20g), C2 (40g), and C3 (80g). Observation variables include plant growth parameters (plant height, number of leaves, stem diameter, and number of branches) and harvest yield parameters (number of tubers and tuber weight). Data analysis used the ANOVA test with a significance level of 0.05. The results of the research showed that giving POC ketapang leaves and dolomite lime had a significant effect on the growth and yield of black potatoes. At plant height, the yield was 24.00 cm, the number of leaves was 25, the number of branches was 5, the stem diameter was 0.90 mm, the number of tubers was 26, and the weight of the tubers was 232 grams.
Pengembangan Media Augmented Reality Terintegrasi Nilai-nilai Islam pada Materi Sistem Saraf untuk Meningkatkan Motivasi dan Hasil Belajar Siswa di SMA Swasta Bandar Setia Ujung Ayundari, Sella; Manalu, Kartika
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.11808

Abstract

The aim of this research is to integrate Islamic values into the nervous system material and develop augmented reality media to enhance student motivation and learning outcomes in a private high school. The specific objectives are to increase student motivation and learning outcomes through media use and evaluate the suitability of the developed media. This study employs a Research and Development (R&D) approach using the ADDIE model. Fifty-four students participated, including 26 in the experimental group and 28 in the control group. Data were collected through expert validation questionnaires, learning motivation surveys, and tests. Tools used included media validation, learning motivation surveys, and tests. Data analysis involved evaluating media suitability, student motivation, and learning outcomes. Media verification results by validators yielded an average score of 96.01%, classified as "very good". Teacher media assessment averaged 96.87%, also categorized as "highly satisfactory". Student responses to augmented reality scored 88.9%, interpreted as good response criteria. Average motivation survey scores were 96.50% for the experimental group (sufficient category) and 38.51% for the control group (moderate category). Average learning performance test scores were 86.50% for the experimental group and 31.09% for the control group. The study concludes that augmented reality learning media are effective and suitable for enhancing motivation and learning outcomes in biology classes by integrating the nervous system and Islamic values.
Morfometrik Ikan Bileh (Rasbora sp.) dari Perairan Ie Sayang Kabupaten Aceh Barat Zulfadhli, Zulfadhli; Hendri, Afrizal; S, Irhami; Nasution, M. Arif
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.11436

Abstract

Bileh fish (Rasbora sp.) is a fish that lives in freshwater and can be found in the waters of Ie Sayang West Woyla West Aceh District. Excessive exploration has caused the population of bileh fish in nature to decrease and be limited. The first step that needs to be done in aquatic resource management is to identify the type of bileh fish to adopt its cultivation techniques. Fish identification can be done morphologically or molecularly. Morphological identification refers to morphometric studies. This study aims to identify bileh fish species from Ie Sayang waters based on morphometric characteristics. The bileh fish was obtained from community catches in September-November 2023. Morphological identification was done by visualizing and measuring morphometric characters. Data were analyzed descriptively, and the relationship between morphometric characters was analyzed by linear regression. The morphology of bileh fish has a fusiform body shape, terminal mouth type, forked caudal fin, and linea lateralis visible from the operculum to the caudal part. Total length (TL) ranged from 36.94-65.78 mm and standard length (SL) 29.01-52.49 mm. The length-weight correlation of allometric fish was negative. TL characters were closely correlated with SL, HL, DFD, ED, CPD, and VFL.
Analisis Faktor yang Berhubungan dengan Rendahnya Capaian Pengelolaan Air Bersih dan Higiene Sanitasi di Puskesmas Selaparang Kota Mataram Rizal Smith; Lalu Sulaiman; Akhmad Fathoni
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.10597

Abstract

The existence of infrastructure at the Public Health Center must be supported by governance including planning management, implementation, operational procedures, human resources, budgeting and infrastructure that have been determined so that the management of service units for the Public at the Public Health Center is in accordance with the standards set by the Ministry of Health. influencing the water and sanitation hygiene facility improvement tool (WASH FIT) assessment in public Health Centers throughout the city of Mataram in 2022 with the lowest results in the Selaparang public Health Center ( 63.05%). So it is necessary to analyze factors related to the low achievement of clean water management and sanitation hygiene at the Selaparang Public Health Center, Mataram City. This research is a qualitative descriptive method, namely providing a direct and comprehensive description at Public Health Center in Mataram City. Based on the research results, it shows that the condition of clean water management and sanitation hygiene from planning management, implementation, standard operating procedures, human resource guidelines, budget and infrastructure still has many deficiencies. Selaparang Public Health Center has not implemented planning management for clean water and sanitation hygiene in a truly open manner based on needs and has not involved sanitation and clean water officers, which has an impact on the implementation of WASH which is still lacking in operations, complete SOPs are not available, which impacts on poor compliance , sanitation and clean water program holders who are not involved in planning also result in inadequate budgets for the provision of adequate infrastructure, insufficient sanitation and clean water personnel do not meet needs due to transfers and permanent illness so that the workload becomes more and heavier. From these results, the implementation of sanitation and clean water at the Selaparang Public Health Center does not meet the standards in accordance with the Regulation of the Minister of Health of the Republic of Indonesia Number 2 of 2023 concerning Implementing Regulations of Government Regulation Number 66 of 2014 concerning environmental health and Regulation of the Minister of Health of the Republic of Indonesia Number 43 of 2019 concerning Public Health Centers, with the results of this research, the Regional Head needs to make a policy, the head of the Mataram City Health Service and the Head of the Public Health Center need to review planning, SOPs, meeting needs and increasing the capacity of officers, increasing the budget through more objective planning through guidance to environmental health program managers and officers sanitation. 
Potensi Antimikroba dan Antioksidan Beberapa Ekstrak Daun Benalu (Scurrula ferruginea (Roxb. ex Jack) Danser dari Archidendron sp. terhadap Staphylococcus aureus, Escherichia coli, dan Candida albicans Annisa Apriyelita; Periadnadi Periadnadi; Nurmiati Nurmiati
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.11108

Abstract

Scurrula ferruginea (Roxb. ex Jack) Danser is known for its role as an antimicrobial and antioxidant agent due to its content of phenolic compounds, alkaloids, and terpenoids. S. ferruginea has been widely used in traditional medicine for skin infections, diarrhea, hypertension, and digestive tract diseases. This study aims to determine the antimicrobial and antioxidant potential of various treatments of S. ferruginea mistletoe extracts. The experimental method used in this research is the nested pattern experiment. The extract treatments applied include fresh extract, boiled dry extract, boiled fresh extract, brewed dry extract, and brewed fresh extract. Antimicrobial potential was assessed using disc diffusion and dilution methods. Antioxidant activity (IC50) was determined using the DPPH (1,1-Diphenyl-2-Picryl-Hydrazine) method, and Total Phenolic Content (TPC) was also determined. The results indicate that the highest antimicrobial activity against Escherichia coli and Staphylococcus aureus was found in the strong category of fresh extract treatment, whereas there was no significant effect on Candida albicans growth. The fresh extract treatment exhibited the highest antimicrobial activity with a total phenolic content of 20.77321 mgGAE/mL. The Minimum Inhibitory Concentration (MIC) values for the fresh extract against S. aureus and E. coli were 6.25%, and the Minimum Bactericidal Concentration (MBC) values were 12.5% against both bacteria. The antioxidant value of the fresh extract was 101.26 μg/mL, categorized as moderate. Based on the conducted research, it can be concluded that S. ferruginea leaf extract can inhibit the activities of S. aureus and E. coli, while showing no effect on Candida albicans growth.
Analisis Metode Praktikum Berbasis Literasi Sains pada Pembelajaran IPA Kelas VII di SMP Swasta Bhayangkari 3 Ginanjar Sari; Novi Fitriandika Sari; Rivo Hasper Dimenta
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.12155

Abstract

Studies on contemporary scientific education have shown that classroom teaching has an impact on students' use of literacy-deficient practical exercises. Consequently, the existing approach of teaching science is significantly deficient and must be substituted. The objective of this descriptive qualitative research is to assess the effectiveness of the Science Literacy-Based Practicum Method in Science Instruction for seventh grade students at SMP Swasta Bhayangkari 3. The sample for this study consisted of thirty seventh graders from SMP Swasta Bhayangkari. Both teachers and students were provided with a questionnaire to complete, and data was gathered via interviews based on their responses. The results indicate that 19.94% of students demonstrate a strong understanding of scientifically explaining phenomena. Additionally, 8.60% of students are able to evaluate and design scientific investigations, while 9.28% of students understand how to interpret data and evidence. According to the findings of this research, integrating a practicum focused on literacy into the learning process is an effective method for promoting student performance and attaining learning goals.
Pengaruh Model Pembelajaran Autentik terhadap Keterampilan Berpikir Kritis Siswa SMA Natasya Mia Angelina; Rizkia Suciati; Luthpi Safahi; Yuni Astuti
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): 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.v12i1.9992

Abstract

Critical thinking skills are one of the 21st century skills that students must have. Students can master these skills so they can develop life skills and soft skills. Critical thinking skills can be developed by connecting learning material with real experiences in everyday life, thereby encouraging students to analyze. This research aims to determine the effect of authentic learning models on high school students' critical thinking skills. The research method used was quasi-experiment, post-test only control design with 1 experimental class and 1 control class. The research instrument is a written test in the form of a description totaling 13 questions. The results of the research showed that the hypothesis test obtained a tcount value of 5.676 > ttable of 1.997 so that the critical thinking skills data in the experimental class was significantly different from the critical thinking skills in the control class. This research can be concluded that the authentic learning model influences high school students' critical thinking skills.

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