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 40 Documents
 1   2   3   4 
Search results for , issue "Vol 9, No 2 (2021): December" : 40 Documents clear
Analisis LKPD dan Alat Ukur Sederhana Kapasitas Paru-paru dalam Mengembangkan HOTS (Higher Order Thinking Skills) Minnathul Khasanah; Bambang Supriatno; Sri Anggraeni
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.3799

Abstract

Student Worksheet (LKPD) is a practical guide in science learning. The existence of LKPD makes practicum activities can be carried out properly and structured. However, in biology lessons, especially the LKPD of the human respiratory system, the practicum of measuring lung capacity in the field is still not appropriate. Therefore, this study aims to reconstruct the LKPD on the human respiratory system material about practicum measuring lung capacity. This research uses the ANCOR (Analysis, Trial, and Reconstruction) stages. This study uses a quantitative descriptive method. The sample in this study amounted to 8 samples of LKPD selected using purposive sampling technique. The instrument used consists of 3 components, including: conceptual analysis, analysis of knowledge construction based on the Vee Diagram adapted from Novak and Gowin (1984), and practical analysis. The results showed that there were still various problems in conceptual analysis, knowledge construction analysis, and practical analysis. In addition, the results of trials related to practicum measuring lung capacity there are still unclear work procedures, as well as practicum tools used to measure lung capacity have weaknesses and are less accurate in data acquisition. So that there is a need for a better LKPD reconstruction, constructing student knowledge, and in accordance with the basic competencies in the applicable curriculum. Meanwhile, to overcome the weakness of the practicum tool, the researchers made an alternative simple tool to measure lung capacity that can develop the HOTS ability of students.
Analisis Kualitas Air pada Genangan Air Hujan sebagai Konsumsi Hewan Ternak di Desa Teba Timur Kabupaten Timor Tengah Utara Made Santiari; Maria Angelina Tuas
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.4421

Abstract

East Teba Village has limited water availability due to the relatively long duration of the dry season, so the villagers use rainwater puddles for various activities, including consumption (source of drinking water) for livestock. This study aims to determine the quality of water in puddles of rainwater for consumption (source of drinking water) livestock. This research is quantitative descriptive. The sampling point of the test is the point where livestock drink water. Sampling test based on SNI 6989.57:2008 regarding the method of sampling surface water. The test result data is compared with the quality standard and the quality status is calculated using the pollution index method. The results showed that the TSS value had exceeded the class 2 and class 3 quality standards, while the BOD value had exceeded the class 2 quality standard and still met the class 3 quality standard. The parameter index value obtained was 2.20 which was classified as lightly polluted. The water in the puddle cannot be consumed by livestock, because the water does not meet the quality standard based on the calculation of the quality status using the pollution index method.
Kandungan C-Organik Substrat Ekosistem Mangrove di Danau Air Asin Gili Meno Kabupaten Lombok Utara Firman Ali Rahman; Alfian Pujian Hadi
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.4276

Abstract

Gili Meno Lake is one of the salt water lakes located in North Lombok Regency, West Nusa Tenggara Province. Gili Meno saltwater lake has an area of 6.6 hectares with a diversity of biota (flora and fauna) and unique physical and chemical characteristics of the lake waters. The purpose of this study was to determine the total c-organic content of the mangrove ecosystem and the c-organic content contained in the bottom substrate of mangrove stands. This type of research is descriptive quantitative with purposive random sampling method, which starts with sampling the substrate found under mangrove stands and testing in the laboratory using the Walkley & Black method to obtain carbon content. Based on the results of the study found 5 (five) types of mangroves, namely: 1) Avecennia marina; 2) Bruguera cylindrica; 3) Rhizophora apiculata; 4) Lumnitzera racemosa; and 5) Excoecaria agallocha, with the most dominant species being Avecennia marina. The largest % content of substrate carbon was found in the mangrove species Rhizophora apiculata with a total content of 19.995 %C or equivalent to 307.96 tons C/ha. Meanwhile, the potential for the estimated total carbon content of the substrate in the saltwater lake mangrove ecosystem of Gili Meno is 154.2 ± 99.78 tons C/ha or equivalent to 1020.50 tons C in a total of 6.6 hectares of mangrove ecosystem area of the saltwater lake Gili Meno.
Reveal the Diversity of Ichtyofauna Tambatan’s River North Labuhanbatu Regency Livia Dewi; Rivo Hasper Dimenta
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.3980

Abstract

The study aimed to determine the diversity of ichtyofauna species has been done in the Tambatan’s River, North Labuhanbatu Regency. This research applied by purposive sampling method to decided sampling collection which based on the environmental conditions of Tambatan’s River. Fish samples were collected using cast nets and gillnets. The collected data were analyzed using the Shannon-Wiener diversity index, evenness index, dominance index, similarity index, and Pearson’s correlation analysis. The results found 20 fish species from 5 families on Tambatan’s River. The largest family of fish species found from Cyprinidae’s (12 species), Bagridae’s (5 species), and the lowest found from Siluroidae’s, Mastacembelidae’s, Gobidae’s family an each 1 species. The result of the diversity index indicated that the 3 stations were classified in the medium category with range of 0.53-1.87. The result of pearson’s correlation describe fish biodiversity has strong positive correlation value to current velocity (0.927) and water transparency (0.927).
Pengaruh Zat Pengatur Tumbuh dari Sampah Rumah Tangga sebagai Media Tanam Krisan (Dendranthema grandiflora Tzvelev.) secara In Vitro Ida Royani; Ali Imran; Iwan Doddy Dharmawibawa
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.4479

Abstract

This study aims to: 1) obtain growth regulators that are easy to obtain at low prices, because synthetic growth regulators are relatively expensive for novice researchers and are very difficult to obtain; and 2) to find out whether household waste can be used as a plant growth regulator in vitro which has been widely used and has been successful conventionally in several types of plants. The method used in this study was experimental, using a completely randomized design (CRD) with three replications. The media used was MS media by adding growth regulators from household waste with a concentration of (0-3) mg/L. The parameters in this study were the number of shoots and roots. The data obtained were then analyzed qualitatively, because the resulting data was not normal and not homogeneous. The results showed that the highest number of shoots was at a concentration of 2 mg/L organic waste growth regulator, with 5 shoots and 15.7 roots, with 8 days after planting on chrysanthemum growing media.
Studi Literatur Tingkat Keanekaragaman Gastropoda sebagai Sumber Belajar Biologi SMA Kelas X pada Materi Keanekaragaman Hayati Ayu Prabaningrum; Yahya Hanafi; Destri Ratna Ma’rifah
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.3800

Abstract

Learning resources are one of the important things in improving the learning process. One of the material for high school class X that requires learning resources that come from the environment is the material on biodiversity. Learning practices in schools generally still use conventional learning resources, and have not used the environment as a learning resource. The purpose of the study was to analyze the requirements of biology learning resources based on research results from literature studies. This research is a literature study research, which is looking for relevant references to research on the Literature Study of Gastropod Diversity Level as a Biology Learning Source for Class X High School on Biodiversity Material. Data analysis used is descriptive qualitative analysis with narrative review method. This study uses 10 scientific articles on the diversity of Gastropods. The results of the study through a literature study found that the Gastropod diversity index had a diversity index of high category H' = 3.0468 and 3.0075. Medium category gastropod diversity index H' = 1.9915; 1,695; 1.5858-1.18742; 2,412; 2.232; 2,059; 1.4786-1.9382; 1,226; 1,251; 2,236; 1.22; and 1.39. Low category gastropod diversity index H' = 0.296; 0.180; 0.972; 0.113; and 0.668. The results of the analysis of the potential requirements for learning resources that have been carried out show that the results of research on gastropod diversity meet the requirements as a source for learning biology in high school class X on the subject of biodiversity.
Pengaruh Kombinasi Zat Pengatur Tumbuh terhadap Perkecambahan dan Inisiasi Tunas Kurma (Phoenix dactylifera L.) Kultivar Sukari Aluh Nikmatullah; Novita Hidayatun Nufus
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.4349

Abstract

The study was conducted to determine the effect of several compositions of growth regulators (PGR) on germination and shoot initiation of dates (Phoenix dactylifera L.) in vitro. The study consisted of 2 experimental stages. The first phase of the study was aimed to determine the effect of the addition of Gibberellin PGR on the length of time the sprouts appeared, the number of explants that germinated, and the length of the sprouts produced. The second stage of the research was to determine the combination of PGR Indhol Acetic Acid (IAA) and Benzyl Amino Purine (BAP) which was able to initiate the emergence of shoots in the hypocotyl of dates. The study was designed using a completely randomized design (CRD). The first experiment consisted of 3 media treatments, namely: agar without additional ZPT (GA0); agar medium with 50 ppm GA (GA1); and agar medium with 100 ppm GA (GA2). Each media treatment consisted of 5 seeds and was repeated 3 times. The second stage of the experiment was designed in a completely randomized design with 5 media treatments, namely: P0 (MS medium without PGR); P1 (MS + 1 ppm IAA + 1 ppm BAP); P2 (MS + 2 ppm IAA + 1 ppm BAP); P3 (MS + 3 ppm IAA + 1 ppm BAP); P4 (MS + 1 ppm IAA + 2 ppm BAP); and P5 (MS + 1 ppm IAA + 3 ppm BAP). Each treatment consisted of 5 explants and repeated 3 times. Parameter observation data were analyzed by Analysis of Variance (ANOVA) and if significant results were obtained, continued with the Least Significant Difference (BNT) further test. The results of the first experimental data analysis showed that the treatment with 50 ppm GA3 significantly shortened the time of emergence of sprouts to 10 days and the number of explants that germinated on average was 4.5 explants. The results of observations and data analysis in the second experiment showed that the combination of IAA and BAP ZPT were significantly able to induce shoot formation on P4 and P5 media, which were 2.83 and 1.3 explants that formed shoots, respectively. Treatment with P4 was able to significantly increase the number of shoots produced by an average of 2.63 shoots per explant.
Komparasi Kandungan Timbal (Pb) Kertas Bekas Mengandung Tinta Pasca Aplikasi Cairan Rumen Sapi Berdasarkan Lama Inkubasi Annisa Rahmawati; Hesti Kurniahu; Sriwulan Sriwulan; Riska Andriani
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.3770

Abstract

The addition of cow rumen fluid to waste containing cellulose can help decompose the cellulose contained in it through the composting process. Organic waste and paper waste containing ink are wastes that contain cellulose. However, the waste paper containing ink contains Lead (Pb) which is used as a color binding agent in the ink. In the composting process, in addition to the degradation process of organic components in paper, it is necessary to know the process of decreasing the Pb content in the compost material. This study was conducted with the aim of comparing the Pb content after application of cow rumen fluid on a mixture of used paper containing ink and organic waste for 60 days with used paper with ink for 7 days. The objects in this study consisted of two groups, the first group was used paper containing ink mixed with organic waste in a ratio of 1:1, then cow rumen fluid was added and incubated for 60 days, while the second group was inked waste paper added with cow rumen fluid and incubated for 7 days. Pb test incubation using AAS (Atomic Adsorption Spectrophotometer) method. The data were statistically tested by Independent T Test on SPSS 23 Software. The conclusions obtained from this study were the incubation time of inked paper waste with the addition of rumen fluid showed that the difference in Pb levels was not significant. The Pb content in both experimental groups was in accordance with the provisions of SNI 19-7030-2004.
Uji Susceptibility Nyamuk Aedes aegypti terhadap Insektisida Malathion di Wilayah Fogging Kabupaten Malang Zada Alimatul Mu’azah; Ainur Rofieq; Mohammad Mirza Nuryady; Tutut Indria Permana; Anka Mohammad Dinindra; Jihan Ully Agustin; Nur Ilmi Dwi Sasmitasari; Muhammad Ahman Luthfi Setiawan; Putri Ayu Irrodah
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.4051

Abstract

Malang Regency is an endemic area for cases of DHF (Dengue Hemorrhagic Fever) in East Java Province. One of the efforts to reduce the number of cases is to control the breeding of the Aedes aegypti mosquito which is the main vector. However, this will depend on the susceptibility status of Aedes aegypti to the insecticides used, one of which is malathion. This study aims to determine the susceptibility status of Aedes aegypti mosquitoes to malathion insecticides in Malang Regency in the southern part. This descriptive observational study used adult Aedes aegypti mosquitoes obtained from the landing collection of larvae from three sub-districts in Malang Regency in the southern part (Kepanjen, Gondanglegi, and Bantur). The location selection was done by simple random sampling technique. The larvae of the Aedes aegypti mosquito were then reared in the Chemistry Laboratory, University of Muhammadiyah Malang. Adult mosquitoes with stomach conditions full of sugar were then tested using the susceptibility test which refers to WHO standards. The results showed that the mortality rate of the tested mosquitoes in the Districts of Kepanjen, Gondanglegi, and Bantur, respectively, reached 98%, 93%, and 96%. This shows that the Aedes aegypti mosquitoes in the three locations are classified as tolerant to the insecticide malathion by 0.8%. Thus, it can be concluded that the insecticide malathion is still effectively used as vector control for DHF (Dengue Hemorrhagic Fever) in Malang Regency.
Produksi Karotenoid oleh Rhodosporidium paludigenum dalam Media Yeast Peptone Dextrose dengan Suplementasi Molase Renna Eliana Warjoto; Theresia Andriana; Bibiana Widiati Lay
Bioscientist : Jurnal Ilmiah Biologi Vol 9, No 2 (2021): December
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.v9i2.4338

Abstract

Carotenoid pigments are commonly found in fruits and vegetables, but carotenoids can also be produced by microorganisms such as yeasts. Carotenoids have several benefits, including antioxidant compounds and vitamin A precursors. Production of carotenoids by microorganisms depends on various factors, such as pH, temperature, and nutrient content in the media. This study aimed to determine the optimum concentration of molasses supplementation and the initial pH of the media for carotenoid production by the red yeast Rhodosporidium paludigenum. In this study, the red yeast was cultivated in Yeast Peptone Dextrose (YPD) media supplemented with molasses, with a total sugar concentration of 2% in the media. This study had a factorial design with eight treatment groups, i.e., molasses supplementation of 0%, 25%, 50%, and 75% in the media with initial pH of 5 and 6 for each molasses supplementation. The results showed that the culture in the media with supplementation of 25% molasses and pH 5 produced the highest levels of carotenoids when compared to those with 50% and 75% molasses supplementation concentrations. The yields of β-carotene and xanthophyll over biomass dry-weight in the media with 25% molasses supplementation at pH 5 were 26.67 μg/g and 31.15 μg/g, respectively. Nevertheless, the red yeast in the media without supplementation (0%) produced the highest carotenoid concentration among all treatments.

Page 1 of 4 | Total Record : 40

 1   2   3   4 

Filter by Year

2021 2021


Reset
Filter By Issues
All Issue 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