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Identifikasi Ektoparasit Ikan Nila (Oreochromis niloticus) Suardi, Magfira; Dhafir, Fatmah; Sabran, Moh.; Sutrisnawati, Sutrisnawati; Ramadhan, Achmad; Agni, Raya
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.16667

Abstract

This study aims is to identify the types of ectoparasites affecting Nile tilapia (Oreochromis niloticus). This research employed a survey method with purposive sampling technique. Fish samples were collected from two different locations, namely a tarpaulin pond and a soil pond in Binangga Village, Marawola District, Sigi Regency. Ten fish were sampled from each location and subsequently identified in the Biology Education Laboratory at Tadulako University. Observations were made on the external parts of the Nile tilapia, including the mucus, gills, fins, and tail. The parameter observed was the type of ectoparasite infecting the Nile tilapia. The results indicated the identification of five ectoparasite species: Dactylogyrus sp., Gyrodactylus sp., Attheyella sp., Cichlidogyrus sp., and Unitubulotestis sardae in 20 Nile tilapia samples. The highest prevalence of ectoparasites was found in the tarpaulin pond. However, both the tarpaulin and soil ponds shared one common ectoparasite species, Unitubulotestis sardae. The conclusion of this study is that Nile tilapia in both locations are infected by various ectoparasite species, with differences in prevalence between the tarpaulin and soil ponds.
Keanekaragaman Jenis Serangga di Berbagai Lahan Pertanian Kecamatan Basidondo Putri, Adelia; Dhafir, Fatmah; Zainal, Syech; Sabran, Moh.; Agni, Raya; Sutrisnawati, Sutrisnawati
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 3 (2025): September
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.v13i3.16708

Abstract

This research aims to describe the level of diversity of insect species in various agricultural lands in Basidondo District, Tolitoli Regency, Central Sulawesi. The research was conducted in January-March 2025 using descriptive methods and quantitative approaches that aim to make a description or descriptive of a situation objectively using numbers. Insect sampling techniques were carried out with four types, namely pitfall trap, light trap, sweeping net, and hand collection. The insects obtained were then identified according to the taxonomic order with the help of insect determination key book, and analyzed using Shannon-Wiener diversity index (H'). The results showed that there were 24 types of insect families that were successfully identified. The value of the diversity index (H') was 3.13, which was classified as high diversity. These results indicate that agricultural land in Basidondo District has environmental conditions that support the diversity of insect communities, which can contribute to the stability of agricultural ecosystems. High diversity indicates a balance between insect pests and natural enemies, as well as the role of insects as pollinators and decomposers.
Pengembangan Snack Bar Fungsional Berbasis Biji Labu Kuning sebagai Alternatif Pangan Sehat Mardin, Sutrisnawati; Ramadhan, Achmad; Masrianih, Masrianih; Tangge, Lilies; Bustamin, Bustamin
Jurnal Abdidas Vol. 6 No. 5 (2025): Oktober 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdidas.v6i5.1208

Abstract

Program pengabdian masyarakat ini dilaksanakan bekerja sama dengan Usaha Mikro, Kecil, dan Menengah (UMKM) Cendana di Kelurahan Lere, Kota Palu, dengan tujuan untuk memperkuat kapasitas mitra dalam mengembangkan produk pangan fungsional dari sumber daya lokal. Biji labu kuning, yang seringkali kurang dimanfaatkan, diolah menjadi snack bar sehat melalui serangkaian kegiatan, termasuk pelatihan, praktik langsung, dan pendampingan teknis. Program ini melibatkan 15 peserta dan dievaluasi menggunakan instrumen pre-test dan post-test untuk menilai peningkatan pengetahuan, serta observasi untuk mengukur penguasaan keterampilan. Hasilnya menunjukkan peningkatan pengetahuan peserta yang signifikan, dengan skor rata-rata meningkat dari 60,67 pada pre-test menjadi 85,40 pada post-test. Selain peningkatan pengetahuan, peserta mampu memproduksi snack bar berbahan dasar biji labu kuning secara mandiri dengan kualitas yang baik, rasa yang bervariasi, dan kemasan yang sesuai. Produk ini menunjukkan nilai gizi yang tinggi, kepraktisan, dan potensi pasar yang menjanjikan sebagai pangan fungsional. Secara keseluruhan, program ini memberikan manfaat nyata bagi UMKM mitra, terutama dalam hal peningkatan keterampilan, diversifikasi produk, dan perluasan peluang usaha.
BIOAKTIVITAS REPELAN EKSTRAK DAUN TEMBELEKAN (Lantana camara) TERHADAP NYAMUK CULEX Sutrisnawati Mardin
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9586

Abstract

The increasing resistance of mosquitoes to chemical insecticides, which negatively impacts the environment, necessitates alternative plant extract usage to mitigate these effects. The objective of this study was to evaluate the bioactivity of Lantana camara leaf extract as a repellent against Culex mosquitoes. L. camara leaves were extracted using the maceration method. Concentrations of 1%, 2%, 3%, and 4% L. camara leaf extract were used to test repellent efficacy. The arm-in-cage method was used to assess effectiveness. Key parameters observed included the number of mosquito landings, time to first bite, and duration of protection. Results indicated that a 4% concentration of L. camara leaf extract provided optimal protection, reducing mosquito landings by up to 90% and offering a two-hour protection duration. This efficacy was comparable to commercial repellents, which provided 96% protection. These findings suggest that L. camara leaf extract has the potential to serve as an effective, safe, and environmentally friendly mosquito repellent.
Pengembangan E-Modul Berbasis Penelitian untuk Meningkatkan Keterampilan Laboratorium dalam Perkembangan Hewan bagi Mahasiswa Pendidikan Biologi Sutrisnawati Mardin; Achmad Ramadhan; Dwi Setyorini
Jurnal Penelitian Pendidikan IPA Vol 11 No 10 (2025): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i10.10915

Abstract

The integration of digital learning resources in higher education necessitates innovative instructional materials to enhance students' laboratory competencies. This study aims to develop a research-based e-module for the Animal Development course and evaluate its validity, feasibility, and effectiveness. The research employed the 4D development model—Define, Design, Develop, and Disseminate, focusing on expert validation and small-group trials. Validation results indicate a high validity score (93.28), while student feasibility assessments show strong acceptance (84.2%). An N-Gain test involving 27 students demonstrates a substantial improvement in laboratory skills (N-Gain = 0.79). These findings confirm that the research-based e-module enhances conceptual understanding, improves laboratory practices, and strengthens students’ data analysis abilities. Overall, the developed e-module serves as an effective digital resource for improving laboratory-based learning in Biology Education
Density of Clams (Polymesoda sp.) in the Mangrove Ecosystem of Pinotu Village, Toribulu District, Parigi Moutong Regency Nuning Niwana; Masrianih; Moh. Sabran; Sutrisnawati; Syech Zainal; Fatmah Dhafir
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.v14i1.19828

Abstract

This study aimed to assess the density of Polymesoda sp. in the mangrove ecosystem of Pinotu Village, Toribulu District, Parigi Moutong Regency, an area experiencing habitat pressure due to environmental change. A quantitative descriptive approach was applied using purposive sampling across three stations: Station 1 behind the residential area, Station 2 in the central mangrove zone, and Station 3 near shrimp ponds. Sampling was conducted at low tide using a line transect method with zigzag plots. Each station consisted of three 25 m transects spaced 10 m apart, with five 1 m² plots established along each transect, yielding a total of 45 observation plots. Environmental parameters measured included temperature, salinity, and pH. The highest density of Polymesoda sp. was recorded at Station 2 (2.93 ind/m²), followed by Station 1 (1.87 ind/m²), whereas the lowest density was observed at Station 3 (0.87 ind/m²). Differences in density were associated with habitat variation, particularly mangrove vegetation density, substrate characteristics, and environmental physical and chemical conditions. These findings indicate that more stable and better-preserved mangrove habitats support higher densities of Polymesoda sp., highlighting the importance of habitat quality in sustaining its population.
Diversity And Density of Freshwater Gastropods and Its Utilization as Learning Media in The Lake Lindu Sigi Regency Estevania Angelin Lago; Achmad Ramadhan; Sutrisnawati Sutrisnawati
Equator Science Journal Vol. 2 No. 3 (2024): Equator Science Journal (ESJ)
Publisher : CV. Dharma Samakta Edukhatulistiwa

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The objective of this study is to describe the abundance of gastropods in the marine waters of Bonebula Beach, Banawa Tengah Subdistrict, and to utilise the findings as a learning resource in the form of electronic pocket books. The research methodology employed is descriptive quantitative research, with the location determined through purposive sampling, resulting in the designation of three observation stations. Station 1 is situated within the seagrass ecosystem, Station 2 within the mangrove ecosystem, and Station 3 within the coral ecosystem. The sampling was conducted using a free collection method. The findings revealed the presence of 19 species of gastropods belonging to 13 families and six orders. The abundance of gastropods on Bonebula Beach is classified as moderate, representing 18.33% of the total population. The percentage of content experts, design experts and media experts is 85%, 85.33% and 84.29%, respectively, with an average feasibility rating of 84.87%. This indicates that the electronic pocket book medium is highly feasible for use.
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

Abstract

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.