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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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Pengembangan Edugame pada Materi Sistem Saraf untuk Siswa SMA Zahra Firdaus; Siti Zubaidah; Munzil Munzil
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.v12i1.11924

Abstract

The complex material of the nervous system often makes high school students feel challenged due to limited teaching time and monotonous learning media. Designing an interactive and enjoyable edugame can simplify students' understanding of abstract concepts and increase their motivation to learn. This study aims to develop an educational game on the nervous system that is valid and practical as a recommended learning medium for high school students. The development uses the Multimedia-Based Instructional Design model by Lee & Owens, which consists of analysis, design, development and implementation, and evaluation. The sample in this study consists of 32 high school students majoring in Science. The data analysis of the validation results is done using a percentage formula, while the questionnaire reliability is analyzed using Cronbach's alpha. The results of media validation showed a score of 95%, material validation reached 100%, validation by practitioners obtained 95%, and the practicality test of the media achieved 96.7%. This educational game on the nervous system can be recommended as one of the learning media for the nervous system material.
Pertumbuhan dan Mortalitas Ikan Kuro (Eleutheronema tetradactylum) yang Didaratkan di Pelabuhan Perikanan Nusantara Kabupaten Merauke Ranny Kusmita; Sunarni Sunarni; Dandi Saleky
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.v12i1.9407

Abstract

This research aimed to determine the size structure, length-weight relationship, growth, and mortality of kuro fish (Eleutheronema tetradactylum) that landed on Nusantara Fishery Harbour, Merauke District. The samples were taken off in August-October 2022 at Nusantara Fishery Harbour, Merauke District. The metusedsing was a purposive sampling method. The measured data was the total length and weight body of kuro fish. The size structure and length-weight relationship of kuro fish were analyzed using Microsoft Excel. Meanwhile, the growth and mortality were analyzed using the FISAT II application. The result analysis shows that the range of E. tetradactylum total length landed on Nusantara Fishery Harbour is 430 – 1030 mm with a weight range of 92 – 3613 grams. The length-weight relationship of E. tetradactylum has the allometric negative growth pattern with equation W = 0,0016L2,1167 in August, W = 0,0017L2,1134 in September, and W = 0,0017L2,1077 in October. The analysis of E. tetradactylum’s growth parameter shows the value L∞ = 1053 mm, K = 0,51/year, and t₀ = -0,1201 year. The result mortality analysis of E. tetradactylum shows the total mortality (Z) was 0,78/ year, natural mortality was 0,43/year, fishing mortality (F) was 0,35/year, and exploitation rate was 0,45/year.
Morfologi Thalus Lichen di Kawasan Jalur Pendakian Bukit Mongkrang Kecamatan Tawangmangu Kabupaten Karanganyar Efri Roziaty; Khurotul Agyuni
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.v12i1.11172

Abstract

Lichen is an association of fungi and algae, morphologically and physiologically unified as a single entity. Lichen is categorized as plants characterized by a thallus-like form. The aim of this research was to investigate the thallus morphology of lichens along the hiking trails of Bukit Mongkrang, Tawangmangu District, Karanganyar Regency, Central Java Province. The research utilized an exploratory method involving exploration of locations to obtain necessary samples. Purposive sampling was employed to select research locations comprising three stations at varying altitudes. Subsequently, lichen morphology samples were identified. The results revealed three types of thalli: Crustose, Foliose, and Fruticose, with Foliose being the most dominant type at 335 individuals, and Crustose the least at 132 individuals. The most dominant surface morphology of lichen thalli was Maculae details in the species Polyblastidium albicans (Pers.) S.Y. Kondr, Lokos & Hur, while the least common surface detail was Cephalodia in the species Lepraria casiella R.C. Harris. Lichen reproductive structures identified included two types: sexual and asexual. Sexual reproductive structures consisted of Apothecia, Perithecia, and Pycnidia, while asexual reproductive structures included Isidia and Soredia. The most dominant sexual reproductive structure found was Apothecia in the species Lecanora glabrata (Ach.) Malme, and the least common was Pycnidia in the species Anaptychia palmulata (Michaux) Vain. Morphological differences among lichen types were influenced by variations in altitude, air temperature, humidity, and light intensity. Lichen was most abundant at elevations ranging from 1,712 to 1,844 meters above sea level.
Kondisi Aspek Biologi Reproduksi Ikan Silais (Kryptopterus hexapterus) di Sungai Bilah Kabupaten Labuhanbatu Khairul Khairul; Rina Sari
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.v12i1.11305

Abstract

Aspects of reproductive biology are important information in efforts to monitoring fish resources. Aspects of reproductive biology of K. hexapterus to be observed include: sex ratio, Gonadal Maturity Rate, and Gonadal Maturity Index. Fish sampling was carried out in October – December 2021 using splint net fishing gear. Determination of observation stations by purposive sampling method, where based on the location of fishermen install splint nets. The results obtained the sex ratio of male and female K. hexapterus (1: 0.34).  Male of the Gonadal maturity Rate only at levels I-II while females are level I-IV. It can be concluded based on the results of the study, that there is too much difference in the ratio between male and female fish caught, so that Gonadal maturity Rate of male fish is not obtained that is ready to spawn. However, in female fish there are already those who reach Gonadal maturity Rate IV phase, this means they are ready to spawn. Male of the Gonad Maturity Index (0.12 - 0.43%) and female (0.11 - 2.98%). Conditions like these can make it difficult for female fish to find males who are also gonadally mature and equally ready to spawn.
Pengembangan E-Module Pertumbuhan dan Perkembangan Diperkaya Informasi Hubungan Sanitasi Lingkungan dengan Stunting di Desa Jungkat Kabupaten Mempawah Didi Akbar; Wolly Candramila; Asriah Nurdini Mardiyyaningsih
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.v12i1.9887

Abstract

The use of E-Modules in the learning process is useful for increasing learning motivation because the neat packaging can make it easier for students to understand the lesson material. It is also necessary to enrich the module content with important phenomena or cases that can train students' high-level thinking skills. The aim of this research is to develop a teaching material product of an E-Module that addresses the topic of the relationship between stunting and environmental sanitation in Growth and Development material. The development methods used include determining potential and problems, data collection, product design, design validation, and design revision. The module content is divided into three learning activities which are also equipped with summaries, formative tests, evaluation questions, feedback/follow-up, answer keys, and a glossary. The results of content validation by five validators obtained a CVR value = 1 for all indicators from the four aspects, namely graphics, content, presentation, and language. Several revisions according to validator comments/input have been made to improve the quality of the module. The product design is declared valid or suitable to proceed to the next development stage.
Analisis Deskriptif Pertumbuhan dan Perkembangan Cacing Tanah (Lumbricus rubellus) dengan Variasi Pakan Ampas Tahu dan Kotoran Sapi Nurma Yunita Sari; Irwan Koto; Aceng Ruyani; Ariefa Primair Yani; Bhakti Karyadi
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.v12i1.11200

Abstract

Earthworms (Lumbricus rubellus) are beneficial invertebrates that reduce waste, animal feed, and cosmetic raw material. The research was conducted at Ruyani Life Sciences Learning Resources (SBIH), Bengkulu (Ruyani et al., 2018), from September to November 2023. The design of this study adopted a Complete Randomized Design (RAL) consisting of five experimental groups with different feed comparisons (in %).Earthworm growth and development are optimized in their natural habitat, which includes temperatures ranging from 15℃ to 25℃, soil moisture and air availability between 15% and 30%, soil pH levels between 6.0 and 7.2, and the presence of organic matter for food. The study fed earthworms a diet consisting of tofu residues and cow dung in different proportions: (a) 100% tofu residues and 0% cow dung; (b) 75% tofu residues and 25% cow dung; (c) 50% tofu residues and 50% cow dung; and (d) 25% tofu residues and 75% cow dung. The research findings indicated that the ideal feed composition for maximizing earthworm biomass production is 25% tofu residues and 75% cow dung. Additionally, the most effective ratio of individual earthworms throughout a four-week maintenance period is 75% tofu residues and 25% cow dung.
Makrozoobenthos sebagai Bioindikator Kualitas Air di Sungai Paneki Desa Pombewe Kabupaten Sigi Nidya Khusni Fatul Janah; Abd. Rauf; 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 Genetik Ikan Gabus Asal Merauke dengan Menggunakan Fragmen Gen Sitokrom Oksidase Sub Unit I Muhammad Dailami; Ating Yuniarti; Dandi Saleky; Abdul Hamid A. Toha
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.v12i1.11446

Abstract

Efforts to cultivate snakehead fish (Chanidae) still experience many problems, especially the availability of high-quality fry. To improve the quality of fry, improving the quality of broodstock is important. Genetic factors play an important role in the selection and breeding of snakehead fish parents. Therefore, it is necessary to explore sources of superior parents with good genetic characteristics. To achieve this goal requires studies from various fields such as ecology, biology, and genetics. Genetic studies can be started by examining the identity and relationships of snakehead fish from Merauke, as a first step in finding a source of germplasm that has high diversity. The aim of this research is to analyze the cytochrome oxidase subunit 1 (COI) gene fragment of snakehead fish from Merauke, Papua. DNA isolation was carried out using the Promega kit with standard protocols, amplification of the COI gene with primers F2 and R2 with the Go Taq Green amplification kit. A total of 653 base pairs of the COI gene fragment were obtained from the sequencing process, with a nucleotide composition of T (29.9%), C (28.8%), A (24.0%), G (17.3%). BLAST results on the NCBI database show that this sequence has 100% similarity to the Channa striata sequence from Papua with sequence ID OQ405388.1. This shows that the identification results of the snakehead fish from Merauke are Channa striata. Phylogenetic tree analysis also showed consistent results, namely the formation of a clade that was the same as the Channa striata fish group derived from GenBank data.
Dampak Pengolahan Air Lindi terhadap Kualitas Air Sungai dan Sumur di Sekitar TPA Regional Piyungan Yogyakarta Harnung Wulan Dari; Suhartini Suhartini
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.v12i1.9601

Abstract

Water is the main need for life, so the quality of the water used in life needs to be known. The objectives of this research are to determine the leachate management system at the IPL, determine efficiency of leachate water treatment performance at IPL, and determine impact of leachate water quality at Piyungan Regional Landfill on the river and wells water quality around the landfill. This research is quantitative descriptive research conducted at Piyungan Regional Landfill and its surroundings in April-July 2023. The data collected were results of physical, chemical, and biological parameters of the IPL Inlet and Outlet leachate water quality, Opak River after the IPL Outlet, and 3 samples of well water from the surrounding community representing distance from the landfill. The data collection methods used are observation, documentation, and analysis of water quality in the laboratory. The data obtained were analyzed using descriptive methods and compared with quality standards set by the Government. The results showed that: The leachate water management system at the IPL uses 8 water treatment tanks include: a bar screen, inlet, coagulation tank, equalization tank, sedimentation tank, SDB, ABR, aeration tank, maturation tank, chlorination tank, and Outlet. The efficiency of leachate water treatment performance at the IPL is not effective and efficient in processing leachate water. The quality of leachate water affects the water quality of the Opak River and wells around the landfill, on chemical parameters TDS, BOD, COD, DO, and microbiological parameters Total Coliform, therefore, the Regional Government need to evaluate and improve the IPL. Communities around the Landfill that use well water as their main need must be filtered and boiled.
Detection of Microplastics in the Digestive Tract of Commercial Fishes from Swalayan X Yogyakarta City Nurul Suwartiningsih; Clariza Ninda Aprilda; Ichsan Luqmana Indra Putra; Sigit Surya Putra
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.v12i1.10359

Abstract

Plastic waste in waters can be degraded into microplastics with a size <5 mm. Microplastics in waters can enter the bodies of organisms, including commercial fishes. This study aims to analyze the abundance and characteristics of microplastics in the digestive tract of three species of commercial fishes from Supermarket X, Yogyakarta City, DIY Province. This study is an exploratory research that used three species of fishes, milkfish (Chanos chanos), mackerel (Rastrelliger sp.), and tuna (Euthynnus affinis). Fish samples were purchased from Supermarket X, Yogyakarta City, DIY Province, taken using quota sampling technique. The fish digestive tract was taken, soaked in 10% KOH, heated in oven at 60° then filtered. The obtained microplastics were then observed under a light microscope. The Kruskal Wallis test was performed to differentiate the abundance and characteristics of microplastics among the three species of fishes. The results showed the abundance of microplastics in the digestive tract of mackerel 465.00 ± 222.69 microplastics/individual, milkfish 471.67 ± 58.53 microplastics/individual and tuna 554.00 ± 122.19 microplastics/individual, but not significantly different. The forms of microplastic found were fiber, fragments, films, and pellets but not significantly different. The color of the microplastics obtained were not significantly different between fish species. Microplastics are dominated by the size range of 101 – 200 µm. Based on the FT-IR results, the microplastics found were Polypropylene (PP). Microplastics detected in the digestive tract of three species of commercial fishes from Supermarket X, Yogyakarta City, DIY Province have abundance and characteristics that are not significantly different.

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