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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 97 Documents
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Search results for , issue "Vol 11, No 2 (2023): December" : 97 Documents clear
Analisis Minat Belajar Siswa pada Mata Pelajaran Biologi Kelas X SMA Negeri 1 Aek Natas Putri Wulandari Sembiring; Rahmi Nazliah; Irmayanti Irmayanti
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.8459

Abstract

The aim of this research is to identify students' learning interests in class X Biology at SMA Negeri 1 Aek Natas, Aek Natas District, North Labuhanbatu Regency. This research was conducted using a descriptive qualitative approach. The research strategy applied was to analyze students' interest in learning at SMA Negeri 1 Aek Natas. The method used in this research was a questionnaire given to 29 class X students of SMA Negeri 1 Aek Natas. The questionnaire is filled out via the Google Form Platform. There are four indicators that are measured in evaluating students' interest in learning Biology in class The results of the research show that students' interest in learning in class X SMA Negeri 1 Aek Natas is 53.6%. In detail, the percentage of student interest for the knowledge indicator was 62.05%, the activeness indicator was 55.7%, the attention indicator was 48.3%, and the interest indicator was 48.3%. This percentage was obtained by filling out a questionnaire distributed to students. Based on these results, it can be concluded that students' interest in learning Biology in class X SMA Negeri 1 Aek Natas can be categorized as moderate interest.
Inventarisasi Varietas Tanaman Puring (Codiaeum variegatum (L.) Rumph. ex A. Juss.) di Desa Jeruju Besar Kecamatan Sungai Kakap Kabupaten Kubu Raya Mas Akhbar Faturrahman; Azfa Fadhilah; Nufitasari Nufitasari; Inne Aqmarina Filza; Hayatul Fajri
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9425

Abstract

Indonesia is a country that has high biodiversity. One of Indonesia's biodiversity plants is the croton plant (Codiaeum variegatum (L.) Rumph. ex A. Juss.). The Croton plant is one of the plants used by the general public as an ornamental plant because of the various shapes and colors of its leaves. This research aims to carry out an inventory of various varieties of croton plants in Jeruju Besar Village, Sungai Kakap District, Kubu Raya Regency, West Kalimantan Province. This research is a qualitative descriptive study with stages including taking samples of croton plants followed by identifying and providing descriptions of croton plants. The results of the research show that there are 24 varieties of croton based on the leaves color and shape, namely ‘Daylight’, ‘Mentimun’, ‘Gold Star’, ‘Burgundy’, ‘Bor Merah’, ‘Batik Mini’, ‘Mentega’, ‘Kecapi’, ‘Trisula’, ‘Tiger’, ‘Spaghetti Three-Color’, ‘Kura Lokal Variegata’, ‘Emping’, ‘Koi’, ‘Manik Maya’, ‘Jazzy Hybrid’, ‘Lele Kirmizi’, ‘Holland’, ‘Kura Batu’, ‘Jumbo Jet’, ‘Adreanum’, ‘Keris’, ‘Jet Amerika’, and ‘Kelabang’.
Perbandingan Struktur Komunitas Cacing Tanah Megadrilli pada Ekosistem Alami dan Ekosistem Buatan Regina Jody; Darmi Darmi; Rizwar Rizwar; Jarulis Jarulis; Risky Hadi Wibowo
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9262

Abstract

Earthworms are an important component of soil ecosystems. The presence of earthworms in a habitat can enhance the quality of the soil, both in its physical, chemical, and biological properties. This research has the purpose to analyze the comparison of earthworm density found in natural ecosystems and artificial ecosystems. The determination of location points is done using the Cluster Sampling method, which includes both natural and artificial ecosystems. Sampling is conducted using the line transect method along a 100-meter length in 20 plots. The earthworm collection method involves the use of square and hand sorting methods. Data analysis includes density values, frequency, diversity index, and the Morisita index, as well as statistical analysis using an independent sample T-Test to determine the significance of the difference in earthworm abundance between the two locations. Five species of megadrillic earthworms were identified, classified into two ecological categories: epigeic and endogeic. In the natural ecosystem, there were five species, namely Pheretima capensis (epigeic), P. corethururus (endogeic), Pheretima sp.1 (epigeic), Megascolex sp. (endogeic), and Pheretima sp.2 (epigeic). Meanwhile, in the artificial ecosystem, three species were found, which are P. capensis (epigeic), P. corethururus (endogeic), and Pheretima sp.2 (epigeic). The density of megadrillic earthworms in the natural ecosystem (567.8 individuals/m2) is significantly higher compared to the artificial ecosystem (242.5 individuals/m2). The relative frequency of earthworms in the natural ecosystem is divided into 3 categories: Rare (Assesory), Common (Constant), and Very Common (Absolute), whereas in the artificial ecosystem, there are 2 categories: Common (Constant) and Very Common (Absolute). The diversity index of earthworms in the natural ecosystem tends to be higher (H' = 1.236) than in the artificial ecosystem (H' = 0.885). The distribution pattern of megadrillic earthworms in the natural ecosystem is clustered, while in the artificial ecosystem, it is random.
Pengembangan E-Booklet pada Sub Materi Peranan Bakteri Kelas X SMA sebagai Media Pembelajaran Sherly Febriani; Laili Fitri Yeni; Eko Sri Wahyuni
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.8634

Abstract

This research development model is based on research and development by Borg & Gall with changes by Sugiyono (2019) which only focuses on five stages: potential and problems, data collection, product design, design validation, and design revision. The purpose of this research is to create and develop E-Booklets as learning media to be tested for validity and reliability, so they are feasible to use. Instrument validation was carried out by two validators using the Guttman scale. Media validation was carried out by five validators using four rating scales based on the Likert scale. Validation is done by filling out a closed questionnaire. Media E-Booklet validation to assess four elements: format, content, language, and practicality. The E-Booklet validation analysis used the Aiken's V method and the reliability test used ICC. The results of the ICC reliability of 0.933 and the validity of Aiken of 0.95 place it in a very good category. The results of the validation show that the E-Booklet on the sub-material of the role of bacteria for class X SMA is a good learning medium so it is suitable for use in learning.
Uji Aktivitas Antibakteri Ekstrak Daun Bridelia micranth Lombok pada Escherichia coli Faizul Bayani; Endang Sudiana; Ade Sukma Hamdani; Ida Wahyuni; Jamilul Mujaddid; Hulyadi Hulyadi
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9931

Abstract

The aim of this research is to identify the antibacterial activity of Bridelia micranth Lombok extract on the pathogenic bacteria Escherichia coli. The independent variable in this study was the concentration of Bridelia micrantha leaf extract. The concentration of Bridelia micrantha leaf extract in this study was varied from 20%, 40%, 60%, and 80%. The dependent variable is the ability of Bridelia micrantha leaf extract as an antibacterial. The antibacterial ability of Bridelia micrantha leaf extract was measured based on the diameter of the clear zone with three repetitions. As a comparison, an antibacterial is used, namely amoxicillin. Data analysis in this research was carried out descriptively, and then non-parametric tests were carried out to test the homogeneity of the data. In this study, the antibacterial ability of Bridelia micrantha leaf extract was discovered. At a concentration of 20%, the average diameter of the inhibitory zone was 2.5 mm which was categorized as none (resistance), 40% concentration was 9.83 mm in the non-existent category (resistance), 60% concentration was 13.66 in the weak category (intermediate), and at a concentration of 80% 16.5 mm is in the medium (sensitive) category. The research results indicated that Bridelia micrantha leaf extract had antibacterial activity against Escherichia coli bacteria. When compared with amoxicillin, the ability of Bridelia micrantha leaf extract as an antibacterial is still lower. Amoxicillin was able to inhibit the growth of Escherichia coli by 18.13 mm, while the highest ability of Bridelia micrantha leaf extract was 16.5 mm. Based on Ministry of Health regulations, antibacterials can be used if the inhibition zone is between 14-18 mm. So, Bridelia micrantha leaf extract can be used as an antibacterial, but it needs to be tested further before being applied to the public.
Kajian Potensi Kumbang Penyerbuk (Elaeidobius kamerunikus Faust) dan Thrips Bunga Hawaii (Thrips hawaiiensis Morgan) sebagai Agens Polinator pada Tanaman Kelapa Sawit Siska Efendi
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.7742

Abstract

Pollinating beetle (Elaeidobius kamerunikus Faust) and thrips hawaiiensis (Thrips hawaiiensis Morgan) are the main pollinators of oil palm. Elaeidobius kamerunikus was introduced from Cameroon in 1982 while Thrips hawaiiensis is a native pollinator that already exists in the ecosystem of oil palm plantations in Indonesia. The purpose of this study was to study the potential of Elaeidobius kamerunikus and Thrips hawaiiensis as pollinating agents in oil palm. This research was conducted in a plasma plantation belonging to the Agricultural Technology Assessment Agency (BPTP) in Nagari Gunung Medan, Sitiung District, Dharmasraya Regency, West Sumatra Province. The parameters used to measure the potential of insect pollinators are population abundance, frequency of visits, and fruit set and fruit grade values, as well as the yield of palm oil produced. Observation of abundance was carried out by directly observing the population of these insects on male flowers of oil palm that were in anthesis. The frequency of visits by Elaeidobius kamerunikus and Thrips hawaiiensis was carried out on receptive female oil palm flowers using the Fix Sample Method. Observations of the frequency of visits were carried out in the morning, afternoon and evening. Pollination effectiveness is done by looking at the value of fruit set and the grade of fruit produced. Based on the analysis of the observed data, it is known that the population abundance of Elaeidobius kamerunikus is higher than that of Thrips hawaiiensis. Likewise with the frequency of visits Elaeidobius kamerunikus visited the female oil palm flowers more often than Thrips hawaiiensis. Based on the time of observation, Elaeidobius kamerunikus visited more female oil palm flowers in the morning and afternoon, while in the afternoon the frequency of Thrips hawaiiensis visits was higher. The total fruit formed as a result of pollination of Thrips hawaiiensis was 793 consisting of 177 grade A, 145.5 grade B, and 472.50 grade C, while the fruit pollinated by Elaeidobius kamerunikus was less, namely 514.5 fruit consisting of 150 grade A, 125.5 grade B, and 239 grade C. The fruit set values produced by the two pollinator insects tested were low, namely 46.45% for Elaeidobius kamerunikus and 59.43 for Thrips hawaiiensis.
Inoculation of Endophytic Bacteria for Increasing Plant Height and Number of Rice Roots (Oryza sativa) Fari Fadilah; Triastuti Rahayu; Putri Agustina; Kistantia Elok Mumpuni; Listy Hasti Mandiri; Trio Ageng Prayitno; Yasir Sidiq
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.8642

Abstract

Four endophytic bacteria have been isolated from banana kluthuk plants and banana ambon. Previous study showed that they produce Indole Acetic Acid (IAA). This study aimed to analyze the effect of endophytic bacterial inoculation on plant height and the number of rice root. For this reason, two endophytic bacteria of each klutuk banana and ambon banana plants were cultured and examined for growth rate using a 600 nm spectrophotometer. Isolate growth was calculated every two hours for 16 hours of bacterial growth in NB media. Bacterial inoculation experiments on rice plants were carried out with five replications. This inoculation begun with germination of rice seeds until the radicle was observed. Then germinated rice seedlings were soaked in a bacterial suspension for 1 hour at room temperature. The results showed the exponential phase of all isolates was observed at 6 hours with shaking. Inoculation using A22 and A51 isolates significantly increases plant height, number of leaves. While, A22 isolate significantly increased the number of roots compared to the uninoculated plants (control). It supports the potential of endophytic bacteria from banana kluthuk and ambon plants.
Pengembangan Asessment Higher Order Thinking Skills (HOTS) Berbasis Computer Based Test (CBT) pada Mata Kuliah Prinsip Pengajaran dan Asesmen yang Efektif Mgs Tibrani; Kodri Madang; Nike Anggraini
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9639

Abstract

The aim of this research is to produce a Higher Order Thinking Skills (HOTS) assessment product based on a Computer Based Test (CBT) with three types of HOTS questions (true or false, multiple choice, and fill in the blank and matching) based on the factual knowledge dimension, conceptual, procedural, and metacognitive with illustrations in the form of discourse, images, graphics, videos, animations, and interactive stimulation, as well as providing feedback after going through the logical validation, empirical validation, and respondent questionnaire stages. The CBT-based HOTS assessment product was implemented for PPG students, Faculty of Teacher Training and Education, Sriwijaya University in the Principles of Effective Teaching and Assessment course with R&D research steps. The product trial subjects in this research were limited to a small scale, namely 8 PPG Pre-Service Biology Education Study Program students, FKIP, Sriwijaya University. The technique for selecting product trial subjects in this research is the cluster sampling technique, namely a sampling method based on certain clusters. The data collection technique uses expert validation sheets and respondent questionnaires, then the data collected is analyzed quantitatively descriptively. Data obtained from questionnaires and scientific communication skills were analyzed using a rating scale. To analyze each statement or indicator, the frequency of answers for each category (answer choices) is calculated and added up. The development of HOTS questions based on the Computer Based Test in the Principles of Effective Teaching and Assessment course is based on two validation values from the validator, namely 81%, meaning that the material and language that has been designed by the researcher is valid and suitable for use. Apart from that, HOTS test questions are said to be practical if the score on the practicality criteria is at least 75%. Based on the results of the student response questionnaire, a score of 91.81% was obtained.
Pengaruh Rasio Crude Enzim Selulase Trichoderma reesei dan Aspergillus niger terhadap Kadar Gula dan Bioetanol Fermentasi Kulit Kacang Tanah (Arachis hypogaea L.) Menggunakan Zymomonas mobilis Trianik Widyaningrum; A’isyah Arroobi’atu Rizqiyah
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9487

Abstract

The need for fuel oil in Indonesia is increasing along with the increase in the number of people's consumption in the fields of transportation, industry, and economy. While the source of petroleum fuel in Indonesia is running low. Therefore, it is necessary to utilize alternative energy, namely bioethanol. Bioethanol can be produced from organic waste that contains high cellulose, one of which is peanut shells. This study aims to determine the effect of the ratio of crude cellulase enzyme Trichoderma reesei and Aspergillus niger on sugar and ethanol content of peanut shell fermentation using Zymomonas mobilis, and to determine the ratio of crude cellulase enzyme that produces the highest sugar and ethanol content of peanut shell fermentation using Z. mobilis. This research is an experimental study with independent variables, namely the ratio of crude cellulase enzyme T. reesei : A. niger (0:0), (1:0), (0:1), (1:1), (1:2), (2:1), (1:3), and (3:1) and the dependent variable of sugar and biethanol content. Data analysis of experimental research results using ANOVA and DMRT test. The addition of crude cellulase enzyme from T. reesei and A. niger affects the sugar content and bioethanol from peanut shell fermentation. The ratio of crude cellulase enzyme from T. reesei and A. niger that produces the highest sugar content is in the treatment P5 ratio of crude enzyme T. reesei: A. niger (2:1) which is 0.14 g/mL and the highest ethanol content from groundnut shell fermentation is in the treatment of P8 crude enzyme ratio of T. reesei : A. niger (1:3) which is 2.23%.
Keanekaragaman Ikan Hasil Tangkapan Nelayan di Pelabuhan Pulau Baai Kota Bengkulu Naftalia Artaria Hutabarat; Indra Sakti; Sutarno Sutarno; Aprina Defianti; Ariefa Primairyani; Euis Nursa'adah
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): 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.v11i2.9130

Abstract

Pulau Baai Port is a crucial resource used as the main sea transportation route for some commodities and goods needed by principals when traveling to or from Bengkulu. Data collection was carried out at three stations The method used to determine stations is purposive sampling. Water quality data collection was also carried out at the three stations. The fish identification method is carried out by looking at morphological characteristics to facilitate classification using the Marine Fishes of the south identification book. A total of 18 species of fish found in the waters of the City of Bengkulu landed at the port Pulau Baai namely white pomfret fish (Pampus argenteus), black pomfret fish (Parastromateus niger), mackerel fish (Scomberomorini), mujair fish (Oreochromis mossambicus), beledang fish (Trichiurus lepturus), next fish (Pleuronectiformes), manyung fish (Arius thalassinus ), kerong kerong fish (Terapon jarbua), sea cork fish (Channa striata), big eye tuba fish (Thunnus obesus), mullet fish (Moolgarda seheli), anchovies (Engraulidae), mackerel fish (Scomberomorini), beleberan fish (Opisthopterus tardoore), Cladi fish (Osphronemus goramy), Kape-kape fish (Pentaprion longimanus), Gulamo fish (Johnius trachycephalus), and Sengin fish (Eleutheronema tetradactylumThen, from the results of calculating the diversity index at these three stations, the values range from 2.46-2.07, (medium). It can be concluded that the results of the ecological analysis at the three stations have moderate diversity with a uniform composition and no species dominates.

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