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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
Mikromorfologi Gonad dan Tipe Reproduksi Ikan Lempuk (Gobiopterus sp.) sebagai Informasi untuk Upaya Domestikasi Latifa, Yusria; Farikhah, Farikhah; Hertika, Asus Maizar Suryanto
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.v12i1.10840

Abstract

Lempuk fish is a native Indonesian fish that is endemic in the Ranu Grati tectonic lake, Pasuruan Regency, East Java. This research aims to provide information in efforts to domesticate lempuk fish, especially on reproductive aspects related to the microscopic characteristics of gonads and reproductive type of Lempuk fish (Gobiopterus sp). This research uses the primary sexual characteristics method with gonadal histology. The variables observed included the male to female sex ratio, the histological structure of male and female gonads, and the reproductive type of lempuk fish. All data was analyzed descriptively, qualitatively and quantitatively by comparing with related literature. The samples taken in this research were 39 Lempuk Fish (Gobiopterus sp). The samples were then preserved in 10% formalin. The number of samples for histological analysis was 20 individuals, while for morphometric and meristic analysis there were 8 individuals. The results of the research show that morphologically the lempuk fish has a transparent body shape and there is a central line on the body with black or brown pigment and has a total length of around 2-3 cm. Lempuk fish have a type of reproduction that develops asynchronously (asynchronous) because the development of oocytes in the ovaries of female fish shows a variety of developmental stages, namely the initial growth stage (nuclear and perinuclear chromatin), cortical alveolar, vitellogenesis, and the mature stage. The sex ratio is predominantly female with a ratio of 0.64: 0.36. The histological structure of male and female gonads has histological differences that reflect different reproductive functions, where the ovaries play a role in egg cell production, while the testes are responsible for sperm formation. An imbalance in the sex ratio indicates the importance of carrying out domestication steps in order to prevent extinction or continuous population decline.
Pemetaan Spesies Asing Invasif Hydrocotyle leucocephala Cham. & Schltdl. di Kebun Raya Bogor Solihah, Fifi Mar’atun; Hariri, Muhammad Rifqi; Turhadi, Turhadi
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.v12i1.10841

Abstract

The presence of undocumented alien flora threatens Indonesia’s flora richness and diversity due to unpredictable invasion risks. Hydrocotyle leucocephala is an alien flora that has been reported as invasive in Sri Lanka and Nigeria and has distributed to Indonesia. Therefore, mapping the distribution and describe the morphological of Hydrocotyle leucocephala is necessary to detect the initial introduction or further spread of this species. The data collection was carried out by exploring the Bogor Botanical Gardens. Environmental factors are measured and documented where Hydrocotyle leucocephala occurs. For observation, Hydrocotyle leucocephala was taken and their morphology described. As a results, Hydrocotyle leucocephala was spread over vak V.L, V.G, V.M, IX.D, VIII.B and parking lot near the conservation building in the Bogor Botanical Gardens. It is also known that Hydrocotyle leucocephala is a creeping herbaceous plant with glabrous stems, kidney-shaped leaves, white flowers without petals and green fruit with persistent styles.
Identifikasi Tumbuhan Penyusun Vegetasi Pulau Kumala sebagai Kawasan Delta Sungai Mahakam Kalimantan Timur Hidayah, Maulida Ulfa; Agil, Muhamad; Mahmud, Muchammad Eka
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.v12i1.10883

Abstract

Indonesia has islands that are very numerous and even reach tens of thousands. Each island is overgrown with different types of plants with their own characteristics including Kumala Island in East Kalimantan. Kumala Island is a delta of the Mahakam River that formed by river flow. The island is overgrown with many plants of various types. The diversity of plant species found on this island has never been identified so it becomes very interesting and important to conduct research related to plant identification as a conservation effort. This study aims to identify all types of plants found on Kumala Island as a form of conservation of the plants, on Kumala Island. The method used in this study is exploration of the predetermined research area. Each plant found was subjected to morphological observations, and the type was identified. The plant data obtained were analyzed using qualitative descriptive techniques. The results showed that 88 types of plants were identified consisting of 28 types of trees, 48 types of shrubs and 12 types of grass. The number of families identified was 44 families, of which 18 families included tree species, 24 families included shrub species and 2 families included grass species. The existence of plants on Kumala Island needs to be considered and conserved so that their existence remains protected.
Keanekaragaman Lichenes sebagai Indikator Kualitas Udara di Kawasan Hutan Dengan Tujuan Khusus (KHDTK) Pujon Kabupaten Malang Ardiansyah, Ivan; Rahardjanto, Abdulkadir; Waluyo, Lud
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.v12i1.10894

Abstract

Air is important for human survival, but in modern times, air quality is increasingly decreasing due to air pollution. Air quality can be seen in several aspects, one of which is the biological aspect. Lichenes are a biological aspect that can be used as an indicator of air quality. Lichenes are sensitive to the natural conditions in which they live, if air pollution occurs in their habitat it will disrupt their growth process. The aim of this research is to determine the air quality in the Pujon Special Purpose Forest Area, Malang Regency, based on the results of the diversity of spesies and size of Lichenes found. This research uses a quantitative approach and an exploratory descriptive research type. The method used was purposive sampling using a 10×20m belt transect placed at stations I, II, and III in the Pujon Special Purpose Forest Area. Data analysis techniques include abiotic factor analysis, analysis of the size of Lichenes as an indicator of air quality, Shannon-Weiner (H') diversity, and analysis of macroscopic characteristics. The results of this research found that 27 spesies of Lichenes had been identified from 15 different families. The highest diversity index value was at station II (2.62), followed by station I (2.52), and the lowest at station III (2.41). Based on the spesies diversity index value, Lichenes are included in medium diversity. The average size of Lichenes at stations I, II, and III indicates that the air quality in the Pujon Special Purpose Forest Area is of very good quality.
Pengaruh Model Project Based Learning terhadap Aktivitas dan Hasil Belajar Peserta Didik Kelas X SMA Anugrahsari, Iin; Adnan, Adnan; Junda, Muhammad
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.v12i1.10901

Abstract

The purpose of this study was to investigate the effect of project-based learning models on students' learning activities and outcomes. This research employed a quasi-experimental design with a pretest-posttest control group. The study was conducted from July to August 2022 at SMA Negeri 12 Makassar. The population consisted of 10th-grade students in the science program, totaling 7 classes. Random sampling selected X MIA 4 as the experimental group and X MIA 2 as the control group. Observational sheets were used to monitor student activities, while test instruments were used to assess student learning outcomes. Data collected were analyzed using descriptive statistics and inferential statistical analysis through Statistical Package for Social Science (SPSS) Version 23.0. Analysis of pretest and posttest scores from the experimental group, comprising 34 students, revealed that 5 students achieved a score in the 'very good' category and 9 students in the 'good' category. In contrast, the control group did not have any students in the 'very good' category; only 3 students were in the 'good' category. Observational results from three observers in the experimental group indicated that 96.73% of students were 'highly active', whereas in the control group, 67.07% were 'sufficiently active'. In conclusion, the research findings suggest that the project-based learning model influences students' learning activities and outcomes.
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.
Analysis of Impacts and Challenges of Online Learning During the Covid-19 Pandemic: A Case Study at SMA Negeri 2 Rantau Selatan Sitompul, Nurlaila; Siregar, Zunaidy Abdullah
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.v12i1.10946

Abstract

The COVID-19 pandemic outbreak in 2019 significantly impacted various aspects of societal life, particularly in education. The shift to online learning, necessitated by the pandemic, posed numerous challenges for teachers and students at SMA Negeri 2 Rantau Selatan. This study aims to comprehensively understand these difficulties faced by 11th-grade teachers during online instruction. Employing a qualitative descriptive approach, the findings reveal several challenges: difficulties in delivering the curriculum, evaluating students' understanding, and creating engaging online learning environments. Quantitatively, 75% of teachers reported significant challenges in curriculum delivery, 60% found it difficult to assess students' comprehension, and 70% struggled with maintaining student engagement. These findings suggest a need for more active and creative teaching methods, supported by adequate facilities from the government. The implications of these findings highlight the necessity for improved educational practices and policy recommendations to better support online learning.
Pengaruh Lama Perendaman pada Biopriming Padi Anak Daro Menggunakan Bacillus subtilis dan Trichoderma harzianum Noli, Zozy Aneloi; Alamsjah, Feskaharny; Rahmayati, Riesca Salsabilah
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.v12i1.10987

Abstract

The majority of Indonesian people consume rice as a staple food. According to data from the Central Statistics Agency (2022), rice production in West Sumatra reached 1,482,996.01 tons in 2019 and continued to decline until 2021, total rice production in West Sumatra was only 1,317,209.38 tons. This is inversely proportional to the population of West Sumatra which increases every year, so efforts need to be made to increase rice production. One of them is the biopriming technique to increase seed vigor. Priming is hydration carried out slowly which aims to ensure that the seed's water potential reaches balance and activates metabolism in the seed before the seed germinates. One of them is biopriming, which is a seed priming technique using biological agents in the form of beneficial microorganisms. Several factors influence the success of the priming technique, one of which is the soaking time. The right soaking time provides a deeper opportunity to absorb water to stimulate the seeds to germinate. This research aims to determine the effect of soaking time on biopriming of the local West Sumatran rice variety "Anak Daro" using Bacillus subtilis and Trichoderma harzianum on the germination of the Anak Daro rice variety. Completely Randomized Design (CRD) factorial pattern with 2 factors with 3 replications. Factor A is a biopriming agent, namely A1 (no microbes), A2 (Bacillus subtilis), and A3 (Trichoderma harzianum). Factor B is the length of soaking, namely B1 (24 hours), B2 (48 hours), and B3 (72 hours). The results showed that Bacillus subtilis and Trichoderma harzianum had a significant effect on maximum growth potential and germination, while soaking time had a significant effect on maximum growth potential and vigor index.
Makrozoobenthos sebagai Bioindikator Kualitas Air di Sungai Paneki Desa Pombewe Kabupaten Sigi Janah, Nidya Khusni Fatul; Rauf, Abd.; Bustamin, Bustamin
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.v12i1.11002

Abstract

Water is a source of life for humans. The need for water often makes humans unaware that their activities can trigger the entry of pollutants into water bodies. These pollutants can degrade river water quality. Water quality refers to the condition of water based on its physical, chemical, and biological characteristics. Water quality can be analyzed based on the presence of aquatic organisms intolerant to pollutants. The objective of this study is to describe the water quality of Paneki River based on the presence of Macrozoobenthos organisms as water bioindicators. This research is a quantitative descriptive study using a line transect sampling technique at three purposively selected stations. The results showed that Macrozoobenthos found belonged to 11 families: Gecarcinucidae, Coenagrionidae, Baetidae, Physidae, Hydropsychidae, Heptageniidae, Gomphidae, Lumbricidae, Palaemonidae, Philopotamidae, and Naucoridae. The calculation of water quality analysis based on the Family Biotic Index at station I was 4.07, and station II was 4.09, indicating both stations are classified as excellent water quality with slight pollution from organic matter. Station III scored 4.42, classified as good water quality with some pollution from organic matter.
Identifikasi Keragaman Mikroflora dan Pengaruhnya pada Kualitas Organoleptik Tempoyak Khas Suku Dayak di Kalimantan Tengah Swestyani, Sondra; Hujjatusnaini, Noor
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.v12i1.11008

Abstract

Tempoyak as local wisdom and national culture is poorly documented. Therefore, it is important to explore the preferences of the millennial generation regarding the organoleptic qualities of Tempoyak. The research design is a one-shot case study. The variables tested were the diversity of microflora in tempoyak, and its influence on the level of organoleptic quality and the level of preference of the millennial generation. Identification of isolates using API-50CHL, biochemical tests and physiological tests. Organoleptic quality uses the hedonic scale test. The research panelists were 120 people from the Dayak, Madura, Jawa and Banjar tribes. Data analysis uses one way Anava analysis. 15 isolates of microflora were found in Tempoyak which affected its taste and organoleptics, 8 isolates including lactic acid bacteria, including Pediococcus acidilactici, Lactobacillus curvatus, Leuconostoc mesenteroides, Lactobacillus plantarum, Streptococcus thermophiles, Lactobacillus pentosus, Enterococcus faecium, and Weissella paramesenteroides. 1 isolate of non-lactic acid bacteria that is Micrococcus varians. 2 isolates from the yeast group consisted of Saccharomyces cereviciae and Kluyveromyces marxianus, and 4 isolates included Rhizopus, Monilia sitophila, and Mucor roxii. All microflora found were capable of producing lactic acid, except Aspergillus repens. The statistical test results show the significance of its influence on the organoleptic quality of all sub-variables, including color, taste, aroma and texture of Tempoyak. The exploration results in this research indicate opportunities for Tempoyak to be more developed, innovative and contemporary, so that it is preferred by the millennial generation.

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