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Community Structure of Fiddler Crabs (Uca) in the Mangrove Ecosystem of Lalombi Village, South Banawa District, Donggala Regency Berlinda Austin Paliwan; Bustamin; Abd. Rauf; Syech Zainal; Moh Sabran; Raya Agni
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
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.v14i1.19867

This study aimed to analyze the community structure of fiddler crabs (Uca) in the mangrove ecosystem of Lalombi Village, South Banawa District, Donggala Regency, and to utilize the research findings as instructional media in the form of a flipbook. This ecological study employed a quantitative descriptive approach based on community structure analysis, with samples collected using purposive sampling. The parameters analyzed included species composition, density, the Shannon–Wiener diversity index, the Simpson dominance index, and the evenness index, along with environmental variables such as temperature, salinity, pH, and substrate type. The results showed that the fiddler crab community in the mangrove ecosystem of Lalombi Village consisted of five species, namely Uca annulipes, Uca lactea, Uca forcipata, Uca tetragonon, and Uca dussumieri. Abundance varied across sampling stations, and the overall diversity level was classified as low to moderate. The occurrence frequency of these five fiddler crab species was very low. The recorded densities were 6 ind/m² for Uca annulipes, 3 ind/m² for Uca lactea, 5 ind/m² for Uca forcipata, 7 ind/m² for Uca tetragonon, and 3 ind/m² for Uca dussumieri, with a low dominance index. The environmental physicochemical conditions recorded for fiddler crab habitat were a temperature of 30°C, water pH of 8.25, salinity of 31, and a muddy substrate type. Overall, the fiddler crab community structure in the mangrove ecosystem of Lalombi Village was relatively stable, characterized by low to moderate diversity, low dominance, and a clumped distribution pattern influenced by substrate conditions and mangrove density.

Types and Abundance of Microplastics in African Catfish (Clarias gariepinus) from Sumber Agung Village, Parigi Moutong Mudrikah Tus Sa'diah; Fatmah Dhafir; Masrianih; Sutrisnawati; Bustamin; Rafiqa
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): 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.v14i2.20493

This study aimed to determine the types and abundance of microplastics in African catfish (Clarias gariepinus) collected from aquaculture ponds and a river in Sumber Agung Village. A descriptive research design was employed using both qualitative and quantitative approaches. A total of 10 catfish aged approximately two months were used as samples, consisting of five individuals from aquaculture ponds and five individuals from the river. Digestive tract samples were digested using 10% KOH solution for 96 hours to separate microplastic particles, followed by filtration, identification, and particle counting. The results showed that microplastics were detected in all catfish samples. Three types of microplastics were identified: fibers, films, and fragments. The abundance of microplastics in catfish from aquaculture ponds was 103.6 particles/individual, which was higher than that observed in catfish from the river, at 57.6 particles/individual. Fragments were the dominant microplastic type in pond-derived catfish, whereas fibers predominated in river-derived catfish. Differences in microplastic abundance were influenced by the characteristics of the aquatic environment, with ponds having limited water circulation that may facilitate microplastic accumulation. These findings indicate that catfish have the potential to serve as bioindicators of microplastic pollution in both aquaculture systems and natural freshwater environments. However, microplastic identification in this study was based solely on microscopic observation; therefore, the polymer composition of the detected microplastics could not be confirmed.

Effect of the Think Talk Write Cooperative Learning Model Assisted by Poster Media on Students’ Learning Outcomes in Biology Among Grade VIII Students at SMP Negeri 19 Palu Nuraziza Z Al Hadar; Astija; Moh. Sabran; Bustamin; Isnainar; Mursito S. Bialangi
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): 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.v14i2.20718

This study aimed to examine the effect of a poster-assisted Think Talk Write cooperative learning model on eighth-grade students’ learning outcomes in biology at SMP Negeri 19 Palu. A quasi-experimental method was employed using a nonequivalent control group design. The study involved two classes selected through purposive sampling: Class VIII A, consisting of 31 students, served as the control group, while Class VIII C, consisting of 28 students, served as the experimental group. Data were collected using a multiple-choice achievement test. The findings showed that the poster-assisted Think Talk Write cooperative learning model had a significant effect on students’ learning outcomes in the topic of the excretory system. The Mann–Whitney U test comparing the posttest scores of the experimental and control groups yielded an Asymp. Sig. (two-tailed) value of 0.001, which was lower than the significance level of 0.05. This result indicated a statistically significant difference between the two groups after the intervention. Furthermore, the experimental group achieved a mean normalized gain of 73% (g = 0.73), which was higher than that of the control group, which achieved 55% (g = 0.55). These findings demonstrate that the poster-assisted Think Talk Write learning model significantly improves students’ biology learning outcomes. Therefore, this model may be considered an effective alternative instructional strategy for enhancing student achievement.

Analisis Dampak Penggunaan Situs Web ChatGPT dalam Proses Pembelajaran Biologi Siswa SMA Negeri 1 Torue I Ketut Didiana; Bustamin; Gamar Binti Non Shamdas; Musdalifah Nurdin; Mohhamad Sabran; Lilies
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.17865

This study aims to describe the impact of using the ChatGPT website in the learning process of Biology students at SMA Negeri 1 Torue. This study uses a qualitative method with a descriptive approach. The subjects in this study were students from SMA Negeri 1 Torue XI and XII, with the number of subjects taken as 10% of the total student population, with 32 students in grade XI and 30 students in grade XII. Data collection techniques involved using a questionnaire filled out by the students, with evaluations using a Likert scale. Observations at SMAN 1 Torue revealed that students have extensively used ChatGPT in the learning process during discussions, and the use of ChatGPT in the biology learning process has both positive and negative impacts. The results of this study indicate the impact of ChatGPT use on the cognitive aspect with an average total percentage of 59%, on the affective aspect with an average total percentage of 69%, and on the psychomotor aspect with an average total percentage of 41%. It can be concluded that there is an impact of using the ChatGPT website in the learning process of Biology students at SMA Negeri 1 Torue.

Pengaruh Model Pembelajaran Kooperatif Tipe Think Pair Share Terhadap Hasil Belajar IPA Biologi Pada Siswa Kelas VIII SMP Negeri 7 Palu Indhira Mardiana; Mursito S. Bialangi; Gamar B.N Shamdas; Bustamin; Raya Agni; Mohammad Jamhari
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.17985

This study aims to describe the effect of the Think Pair Share (TPS) cooperative learning model on the science learning outcomes of eighth-grade students at SMP Negeri 7 Palu. This study used a quasi-experimental design with a pretest-posttest control group design. The population of this study consisted of all eighth-grade students in six classes, with a total of 166 students. The sample of this study consisted of classes VIII A and VIII B, with a total of 54 students. The sampling technique used was purposive sampling, whereby both classes were selected as sample classes because they were relatively homogeneous in terms of student grades, numbers, and characteristics. The data collection technique was a test. The instrument in this study was a learning outcome test used for pretest and posttest. Instrument testing included validity and reliability tests, while assumption testing included normality and homogeneity tests. Hypothesis testing used an independent samples t-test and learning outcome improvement was tested using an N-Gain test. The results showed that there was a significant effect of the TPS cooperative learning model on biology learning outcomes in grade VIII students at SMP Negeri 7 Palu. The average posttest score for the experimental class was 76, while that for the control class was 39. The N-Gain test results showed a higher increase in learning outcomes in the experimental class with a score of 0.72, which is in the high category. In conclusion, the TPS cooperative learning model has a significant effect on biology learning outcomes.

Persepsi Siswa Terhadap Penerapan Model Pembelajaran Project Based Learning Menggunakan Alat Peraga Pada Materi Sistem Pernapasan Manusia di Kelas XI SMAN 1 Bunobogu Indri A. Artinya; Bustamin; Abd. Rauf; Mursito S. Bialangi; Syech Zainal; Moh. Sabran
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.18017

This study aims to describe students’ perceptions of the implementation of the Project -Based Learning (PjBL) model combined with the use of teaching aids in learning the human respiratory system in Grade XI at SMAN 1 Bunobogu. The study employed a descriptive qualitative approach. The research subjects consisted of three students purposively selected based on different levels of ability. Data were collected through participatory observation, in-depth interviews, supporting questionnaires using a Likert scale, and documentation. Data validity was ensured through source and method triangulation, while data analysis followed the Miles and Huberman model. The results indicate positive perceptions across all three aspects. The cognitive aspect showed a supporting questionnaire score of 3.56 (good category), and the teaching aids effectively transformed abstract concepts into more concrete representations. The affective aspect, with a score of 3.58, reflected increased learning interest and motivation. The psychomotor aspect, with a score of 3.53, contributed to the development of practical skills, creativity, and teamwork.

Persepsi Remaja Tentang Pendidikan Seksual Pranikah di SMAN 1 Kasimbar Cici Magfira Aj. Masauda; Bustamin; Rafiqah; Abd Rauf; Mursito S. Bialangi; Moh. Sabran
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.18266

This study aims to describe adolescents' perceptions of premarital sex education at SMA Negeri 1 Kasimbar. This research uses a descriptive quantitative research method. The population in this study consisted of 416 students. The sample in this study consisted of 104 students, selected using stratified random sampling from grades X, XI, and XII at SMA Negeri 1 Kasimbar. The research instruments used were observation, interviews, questionnaires, and documentation. The instrument test results were declared valid and reliable. The research results indicate that adolescents' perceptions of premarital sexual education are, overall, in the very good category, with 89 students (85.6%) falling into the very good category, 14 students (13.5%) in the good category, and only 1 student (1.0%) in the sufficient category. The overall average score reached 3.53 on a four-point Likert scale. The aspect of parental role received the highest score with an average of 3.61, followed by attitudes at 3.58, information media at 3.55, school involvement at 3.48, and knowledge at 3.45. Thus, it can be concluded that adolescents are beginning to have a high awareness of the importance of correct and responsible understanding of sexuality. Therefore, sexual education needs to be integrated into Biology lessons at school to strengthen adolescents' knowledge and positive attitudes towards reproductive health.

Kelimpahan Kepiting Scylla sp. di Kawasan Hutan Mangrove Desa Lalombi Kecamatan Banawa Selatan Kabupaten Donggala dan Pemanfaatannya Sebagai Media Pembelajaran Khaerunnisa; Bustamin; Abd. Rauf; Achmad Ramadhan; Moh. Sabran; Manap Trianto
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.18623

This study aims to determine the abundance of Scylla sp. crabs in the mangrove forest area of Lalombi Village, South Banawa District, Donggala Regency. The type of research used is descriptive quantitative. The technique for determining the location for sampling is using the purposive sampling method. Sampling of Scylla sp. crabs was carried out directly by hand collection method at low tide. The population and samples in this study were all types of Scylla sp. crabs found in the research location. Data analysis was carried out by calculating the abundance index, to determine the level of abundance of the crab species found. The Scylla sp. crab samples obtained amounted to 4 species, namely Scylla tranquebarica with an abundance index of 46%, Scylla paramamosain with an abundance index of 36%, Scylla olivacea with an abundance index of 43%, and Scylla serrata crabs are the most abundant crab species with an abundance index of 49%. The abundance index value of Scylla sp. crabs obtained in the mangrove forest area of Lalombi Village, South Banawa District, Donggala Regency shows a moderate level of abundance.

Identifikasi Upaya Guru Dalam Membangkitkan Minat Belajar Siswa Pada Pembelajaran Biologi di Kelas XI MIPA SMA Negeri Sekecamatan Dondo Nadia; Gamar Binti Non Shamdas; Amalia Buntu; Mohammad Jamhari; Bustamin; Vita Indri Febriani
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.18938

This study aims to identify teachers' efforts in arousing students' interest in biology learning in public high schools in Dondo District. The study used a descriptive qualitative approach with research instruments in the form of observation sheets, questionnaires, and interview guidelines. Data collection techniques were carried out through observation, questionnaires, and interviews. Data were analyzed through the stages of data reduction, data presentation, and drawing conclusions, while the questionnaires were processed descriptively to identify trends in each indicator of teacher efforts. The results showed that teachers had made various efforts to arouse students' interest in learning, with the highest achievement in the indicator of creating a pleasant atmosphere, followed by giving praise and varied learning methods, and efforts to relate the material to everyday life. Meanwhile, the indicator with the lowest achievement was providing feedback that had not been given specifically to each student. This finding was reinforced by the results of interviews that showed that teachers tried to create interesting learning through a variety of methods, concrete examples, and positive interactions during learning. This study concludes that teachers' efforts to arouse students' interest in learning biology have been effective, but the provision of feedback and strengthening of more equitable learning collaboration needs to be improved.

Keanekaragaman Jenis Serangga di Perkebunan Kakao Desa Sejahtera Kecamatan Palolo Kabupaten Sigi Hikma Abia; Fatma Dhafir; Masrianih; Vita Indri Febriani; Bustamin; Manap Trianto
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): 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.v13i4.19026

This research aims to determine the level of insect species diversity in the cocoa plantations of Sejahtera village, Palolo subdistrict, Sigi regency. The study was conducted on November 25–26 2025, using a quantitative descriptive method. Insect sampling was carried out using pitfall traps, light traps, sweeping nets, and hand collection techniques at three observation stations: areas around settlements, areas around rivers, and highland areas. The data obtained were analyzed using the Shannon–Wiener diversity index (H’). The results showed that a total of 223 insects were found consisting of 17 species, 12 families, and 8 orders. Insect species found include Oberea atropunctata, Amata prepuncta, Leptosia nina, Valanga nigricornis, Ischnura hastata, Dorcus parallelipipedus, Utetheisa pulchella, Amphiareus obscuriceps, Nyctemera baulus, Xysticus sp., Leptogenys diminuta, Oecophylla smaragdina, Diceroprocta vitripennis, Melanitis phedima, Calobatina geometra, Eurema sp., and Solenopsis sp. The overall insect species diversity index value is H’ = 2.37 which is classified as moderate. The results of this study are expected to provide basic information for communities and farmers in understanding the existence and role of insects, so that they can support more effective and sustainable cocoa plantation management.

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