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All Journal SOSCIED Quagga: Jurnal Pendidikan dan Biologi Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa Jurnal Cendekia Ilmiah
Wiesye Nangoy
Universitas Negeri Manado
Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Immunology & microbiology Mathematics Social Sciences

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IDENTIFIKASI BAKTERI YANG TUMBUH PADA OLAHAN ABON IKAN CAKALANG (Katsuwonus pelamis L.) DARI UMKM KOTA BITUNG Daud, Putri; Naharia, Orbanus; Lawalata, Helen Joan; Setyawati, Iriani; Nangoy, Wiesye M. S>
SOSCIED Vol 7 No 2 (2024): SOSCIED - November 2024
Publisher : LPPM Politeknik Saint Paul Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32531/jsoscied.v7i2.875

Abstract

Skipjack Tuna (Katsuwonus pelamis L.) is a pelagic fish that dominates the waters of the Indian and Pacific Oceans. This fish has unique physical characteristics, including an aerodynamic body, a metallic blue or teal back, and transverse stripes that distinguish it from other species. In Indonesia, skipjack tuna is abundant in the waters of Manado and Maluku. This study aims to determine the types of bacteria present in processed skipjack tuna floss (abon cakalang) based on morphological and physiological characteristics through biochemical tests. This study employs a qualitative descriptive approach conducted in a laboratory setting. Data were gathered through direct observation of samples undergoing various tests and subsequently presented in a descriptive manner. Based on the identification data, 30 bacterial isolates were found in the processed skipjack tuna floss. The isolates were identified macroscopically and microscopically. The findings of the study reveal that the bacteria found in processed skipjack tuna floss, based on biochemical tests and profile matching, are suspected to belong to the Staphylococcus and Vibrio genera.
Isolasi dan Identifikasi Bakteri Escherichia Coli Jajanan Pasar Girian Kota Bitung Marsanda Tandiapa; Helen J. Lawalata; Anita C. Tengker; Herry M. Sumampouw; Wiesye M. S. Nangoy
J-CEKI : Jurnal Cendekia Ilmiah Vol. 3 No. 4: Juni 2024
Publisher : CV. ULIL ALBAB CORP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jceki.v3i4.3746

Abstract

Jajanan (street food) merupakan makanan dan minuman yang dibuat oleh pedagang kaki lima dan dijual di sekolah, pasar dan tempat-tempat umum lainnya. Makanan dan minuman menjadi aspek penting dalam kehidupan manusia. Bakteri Escherichia coli merupakan salah satu bakteri yang ada dalam makanan dan minuman. Adapun tujuan dari penelitian ini yaitu untuk mengisolasi dan mengidentifikasi bakteri Escherichia coli jajanan Pasar Girian Kota Bitung. Metode yang digunakan dalam penelitian ini yaitu metode deskriptif kualitatif. Sampel yang digunakan sebanyak 3 sampel jajanan (minuman boba, kue pukis dan molen), masing-masing sampel diambil dari tempat dan penjual yang berbeda di Pasar Girian. Pengujian dilakukan menggunakan metode Most Probable Number (MPN) seri 5-5-5 dengan 3 pengenceran (). Sampel di ujikan ke dalam media Lauryl Tryptose Broth (LTB) kemudian dilanjutkan ke media Ec Broth, dan kemudian dilakukan penanaman bakteri pada media Eosin Metyle Blue Agar (EMBA), dilakukan pewarnaan gram pada setiap sampel positif dan uji biokimia. Hasil dalam penelitian ini menunjukan bahwa ke tiga sampel yang diperdagangkan di Pasar Girian Kota Bitung positif terkontaminasi oleh bakteri Escherichia coli. Jumlah cemaran terbesar terdapat dalam sampel minuman boba yaitu sebesar >160 MPN/gr.
Model Project Based Learning dalam Pembelajaran Biologi: Suatu Penelitian Tindakan Kelas di SMA Negeri 2 Langowan Kirei Hana Megumi Moniung; Ferny M. Tumbel; Wiesye M. S. Nangoy
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam Vol. 3 No. 2 (2025): JUNI : Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/pentagon.v3i2.582

Abstract

The low activity of students in biology learning is the main challenge in efforts to improve the quality of science learning in secondary schools. This study aims to analyze the effectiveness of the application of the Project Based Learning learning model in increasing student activity and learning outcomes in respiratory system materials at SMA Negeri 2 Langowan. This research is a Class Action Research that is carried out in two cycles, each of which includes stages of planning, action, observation, and reflection. The subjects of the study were 13 students in grade XI. The instruments used include student activity observation sheets and the final test of the cycle based on description questions. The results showed that in the first cycle, only 38.46% of students achieved learning completeness with an average score of 60. However, after improving the strategy in cycle II through active mentoring, learning motivation, and strengthening group work, completeness increased to 92.30% with an average score of 84.69. These findings indicate that the Project Based Learning learning model is able to build student activeness through contextual, collaborative, and hands-on experience-based learning. The increase in activeness is reflected not only in test results, but also in students' active participation in discussions, group presentations, and project completion. The implications of this study show that Project Based Learning is feasible to be implemented as an innovative learning strategy to improve the quality of student interaction and engagement in biology learning on an ongoing basis.
Penerapan Model Pembelajaran PBL di Era Kurikulum Merdeka Belajar di SMA Kristen Tumou Tou Girian Bitung Grace Miracle Lukas; Sukmarayu Pieter Gedoan; Wiesye MS Nangoy
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 3 No. 4 (2025): Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/algoritma.v3i4.586

Abstract

In the learning process, teachers have not employed a variety of instructional models that align with the diverse learning styles of the students, resulting in a diminished interest in learning among the participants. Accordingly, it is anticipated that this study will enable teachers to engage students more effectively in the learning process, thereby cultivating a greater interest in learning. The objective of this research is to enhance the learning outcomes of students on the subject of Plant Growth and Development by implementing the Problem Based Learning (PBL) model at SMA Kristen Tumou Tou Girian Bitung. This study is a qualitative descriptive research. Data collection techniques include questionnaires, interviews, and document analysis. The research design employed is Classroom Action Research (CAR). The subjects of the study are 20 students from class XIA who experienced the implementation of the Problem Based Learning model. Data were gathered using both tests and observations. Classically, the students’ learning outcomes improved from 70% in cycle I to 100% in cycle II. Consequently, it can be concluded that the application of the Problem Based Learning method has enhanced the learning outcomes of the students in class XIA of the specialized program at SMA Kristen Tumou Tou Girian Bitung.  
The Role of Riparian Vegetation in Pollutant Filtration and Sediment Stabilization in Lake Tondano, Indonesia Wiesye Nangoy; Gerry Harindah; Rievo Djarang; Utari Satiman
Quagga: Jurnal Pendidikan dan Biologi Vol 18 No 2 (2026): QUAGGA : Jurnal Pendidikan dan Biologi
Publisher : Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Kuningan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25134/quagga.v18i2.527

Abstract

Riparian vegetation plays a crucial role in maintaining aquatic ecosystem stability by acting as a natural buffer against anthropogenic pollution and erosion. This study analyzed the composition, structure, and ecological functions of riparian vegetation in Lake Tondano, North Sulawesi, Indonesia, with emphasis on pollutant filtration and sediment stabilization. Field surveys were conducted from May to August 2025 at ten riparian stations surrounding Lake Tondano (4,638 ha). Vegetation sampling used a stratified line transect method with fifty plots of varying sizes according to vegetation strata. Quantitative analysis included relative abundance, frequency, dominance, Importance Value Index (IVI), and the Shannon–Wiener diversity index (H’). Ecological functions were assessed through correlations between vegetation structure and reported nutrient and sediment reduction efficiencies from tropical riparian studies. A total of fifteen dominant riparian species were identified, mainly from the families Poaceae and Cyperaceae. Cyperus papyrus (IVI = 21.81%) and Metroxylon sagu (IVI = 29.65%) functioned as key ecological species, while Ficus septica showed the highest IVI (90.83%), indicating strong structural dominance. The Shannon–Wiener diversity index (H’ = 2.65) reflects moderate to high diversity. Riparian vegetation was estimated to reduce nutrient loads by 40–60% and erosion by 30–50%, highlighting its importance for ecosystem-based lake management.
Co-Authors Anita Costanci Christine Tengker Daud, Putri Ferni Margo Tumbel Gerry Harindah Grace Miracle Lukas Helen Joan Lawalata Herry Maurits Sumampouw IRIANI SETYAWATI Kirei Hana Megumi Moniung Marsanda Tandiapa Orbanus Naharia Rievo Djarang Sukmarayu Pieter Gedoan Utari Satiman