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Abubakar Sidik Katili
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KEANEKARAGAMAN JENIS SERANGGA AIR PADA PERAIRAN KANAL TAMALATE KECAMATAN KABILA KABUPATEN BONE BOLANGO Halimu, Nining; Lamangantjo, Chairunnisah J.; Katili, Abubakar Sidik; Zakaria, Zuliyanto
ZOO INDONESIA Vol 33, No 1 (2024): Juli 2024
Publisher : Masyarakat Zoologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52508/zi.v33i1.4614

Abstract

Serangga air merupakan salah satu organisme akuatik yang peka terhadap keadaan lingkungannya. Serangga air merupakan salah satu organisme indikator yang sangat bergantung terhadap kondisi lingkungannya dengan cara mendeteksi suatu perairan yang sudah tercemar. Penelitian ini bertujuan untuk mengetahui karakteristik morfologi serangga air pada kanal Tamalate dan untuk mengetahui keanekaragaman dan kekayaan spesies serangga air pada kanal Tamalate. Penelitian ini dilakukan pada tiga stasiun dan masing-masing stasiun ditentukan tiga titik pengambilan sampel. Sampel yang diperoleh diawetkan dengan alkohol 70%, kemudian diidentifikasi. Dari tiga stasiun, serangga air yang ditemukan di kanal Tamalate meliputi enam spesies dari dua ordo, yaitu Ordo Hemiptera terdiri dari spesies Gerridae sp.1 (49 individu) dan Gerridae sp.2 (47 individu) serta Ordo Odonata yang terdiri dari Pseudagrion sp.1 (23 individu), Pseudagrion pilidorsum (11 individu), Pseudagrion sp. 2 (24 individu) dan Ischnura senegalensis (39 individu). Hasil penelitian menunjukkan bahwa nilai indeks keanekaragaman serangga air di kanal Tamalate sebesar 1,684 dan termasuk dalam kategori keanekaragaman sedang. Indeks kekayaan jenis serangga air di kanal Tamalate tertinggi, yaitu pada spesies Pseudagrion sp.1 (2,00) dan terendah pada spesies Gerridae sp. 1 (1,28).
Pengembangan Modul Pembelajaran Biologi pada Materi Interaksi dalam Ekosistem Berbasis Pendekatan Contextual Teaching And Learning (CTL) Kelas X di SMA Negeri 1 Tilango Desriyanti Tane; Ramli Utina; Marini Susanti Hamidun; Masra Latjompoh; Frida Maryati Yusuf; Abubakar Sidik Katili
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa Vol. 3 No. 1 (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.v3i1.358

Abstract

This research aims to describe the validity, practicality and capability of student learning outcomes using Contextual Teaching and Learning (CTL) based learning modules . The test subjects in this research involved 20 class X students of SMA Negeri 1 Tilango for the 2023/2024 academic year. The CTL-based module developed refers to the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model which is limited to the limited-scale trial development stage. The research results based on the CTL-based Module show the feasibility value of the valid criteria, the practicality of obtaining a score in the score range of 81%-100%, the learning outcomes of students using the N-Gain formula obtain a percentage value of 0.61% with medium criteria, so that the CTL-based Module is developed suitable for use as a learning medium to improve student learning outcomes on interaction material in ecosystems in class X SMA Negeri 1 Tilango.
AKTIVITAS ANTIBAKTERI ACTINOMYCETES DARI AKAR TANAMAN DI EKOSISTEM KARST GORONTALO, INDONESIA Alfandi Kibu; Yuliana Retnowati; Novri Youla Kandowangko; Wirnangsi Din Uno; Abubakar Sidik Katili; Nurdin
Jurnal Humaniora dan Sosial Sains Vol. 2 No. 1 (2025)
Publisher : Pojok Publisher

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Abstract

Several pathogenic bacteria such as Staphylococcus aureus, Escherichia, Pseudomonas aeruginosa and other pathogenic bacteria have developed resistance to many marketed antibiotics. Staphylococcus aureus is already resistant to several types of antibiotics such as penicillin, erythromycin, cefoxitin, levofloxacin, and clindamycin, Escherichia is resistant to several antibiotics such as Penicillin G, Cefotaxime, Tetracycline, Ampicillin, and Amoxicillin, Pseudomonas aeruginosa has been resistant to antibiotics that target ribosomes, such as tobramycin and tigecycline. The problem of resistance of several pathogenic bacteria can be overcome by finding new metabolite compounds from Actinomycetes microorganisms that have antibiotic potential by exploring extreme areas, one of which is in the karst area, especially in plant roots. Root sampling was carried out by taking samples + 20 cm on each type of plant found. Isolation of Actinomycetes bacteria was carried out using the plate method. Antibacterial activity testing was carried out using the line method. The morphological form of the spores was seen using a SEM (Scanning Electron Microscope). The results of the study found 2 isolates of isolated plant roots containing Actinomycetes bacteria. 2 isolates showed morphological characteristics of mycelium, oval and round in shape and had various colors. The results of the antibacterial activity test showed that each isolate could inhibit several types of pathogenic bacteria, seen from the clear zone with different diameters and the results of SEM (Scanning Electron Microscopy) showed that 2 isolates had the same character and shape of spores as Actinomycetes, namely the genus Streptomyces.
STRUKTUR VEGETASI MANGROVE DI DESA POPALO KABUPATEN GORANTALO UTARA Nurlena Duhe; Marini Susanti Hamidun; Abubakar Sidik Katili; Febriyanti; 5Ilyas H. Husain; Waode Faridawaty
Jurnal Humaniora dan Sosial Sains Vol. 2 No. 1 (2025)
Publisher : Pojok Publisher

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Abstract

This study focuses on observing the structure of mangrove vegetation in Popalo Village, North Gorontalo Regency. Scientists found that the condition of mangrove forests in the area is not uniform, with some areas still well maintained, especially near rivers and beaches, while other areas, especially near settlements, have been damaged due to land conversion into ponds. This type of research is descriptive quantitative using a survey method. The most dominant type of mangrove found is Rhizophora. In addition, this study also shows that environmental factors such as temperature, air acidity, and salt levels greatly affect the growth and development of mangroves. Overall, the results of this study highlight the importance of better conservation and management efforts for mangrove forests in Popalo Village to maintain the sustainability of coastal ecosystems.
POTENSI ACTINOMYCETES DARI RHIZOSFER TUMBUHAN DI EKOSISTEM KARST GORONTALO SEBAGAI ANTICANDIDA Riskanarti K. Lihaawa; Yuliana Retnowati; Abubakar Sidik Katili
Jurnal Humaniora dan Sosial Sains Vol. 2 No. 1 (2025)
Publisher : Pojok Publisher

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Abstract

Karst ecosystem is one of the extreme marginal areas or types of soil that has low soil fertility. Soil in the karst ecosystem has a relatively high calcium (Ca) content which can affect the availability of phosphorus (P). However, there is microbial activity that can provide nutrient needs for plants to stay alive, one of which is Actinomycetes. This research method uses a quantitative research method, rhizosphere soil samples were taken at three locations, namely Bangga hill, Panipi hill around Lake Limboto, and Olohuta hill with a purposive sampling method. The results of the study showed that there were 7 isolates of Actinomycetes found associated with 5 types of plants in the karst ecosystem. Actinomycetes isolates showed almost uniform morphological, colony and cell characteristics dominated by white. The results of the anticandida activity test showed that there were 2 isolates (KSLl and KSIc) that inhibited the growth of Candida albicans, KSLl with an inhibition zone diameter of 10.5 mm and KSIc with an inhibition zone diameter of 17.5 mm. Molecular identification based on 16S RRNA gene sequences showed that the KSLl isolate was closely related to Streptomyces aegyptia with a similarity index of 99.64% and the KSIc isolate was closely related to Istreptomyces sp with a similarity index of 99.57%.
Analisis Struktur Vegetasi dan Potensi Serapan Karbon Tumbuhan di Kawasan Cagar Alam Tangale Kabupaten Gorontalo Kirsten Caroline Donsi; Dewi Wahyuni K. Baderan; Abubakar Sidik katili; Marini Susanti Hamidun; Jusna Ahmad; Nurma Rosalia
Hidroponik : Jurnal Ilmu Pertanian Dan Teknologi Dalam Ilmu Tanaman Vol. 2 No. 1 (2025): March: Hidroponik: Jurnal Ilmu Pertanian Dan Teknologi Dalam Ilmu Tanaman
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/hidroponik.v2i1.260

Abstract

This study aims to determine the composition and structure of vegetation and estimate the potential for carbon dioxide absorption in the Tangale Nature Reserve Area, Gorontalo Regency. The method used in this study is the determination of sampling locations carried out by purposive sampling, making multilevel plots, analyzing vegetation structure, and estimating tree biomass is done non-destructively based on measuring the height and diameter of trees at breast height (DBH), while for lower plants it is done destructively and litter is taken all in the plot area to be weighed wet and dry weight and then estimating biomass, C reserves, and CO2 uptake. The results showed that the vegetation composition consisted of 18 species dominated by the Magnoliopsida class. The highest Important Value Index is found at each observation station. Calculation of biomass value, C reserves, and CO2 uptake at each observation station showed varying results because they were influenced by vegetation type, vegetation density, vegetation composition and structure, and environmental factors. The total value of CO2 uptake by vegetation in the Tangale Nature Reserve Area is 5,304.393 tons of CO2/ha. This research provides a better understanding of carbon sequestration potential in conservation areas to support environmental conservation and climate change mitigation efforts.
Pengembangan Modul Keanekaragaman Genetik Jagung Lokal Gorontalo Untuk Pembelajaran Biologi SMA: (Development of a Genetic Diversity Module for Gorontalo Local Corn for High School Biology Learning) Hidayat, Ahmad; Kandowangko, Novri Youla; Latjompoh, Masra; Katili, Abubakar Sidik; Pagalla, Devi Bunga
BIODIK Vol. 11 No. 02 (2025): June 2025
Publisher : Program Studi Pendidikan Biologi FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biodik.v11i02.44614

Abstract

The lack of contextual teaching materials that highlight local potential is a challenge in biology learning in schools. This study aims to determine the validity and practicality of the learning module on genetic biodiversity in local Gorontalo corn plants. This study uses the Research and Development method. The learning module was developed using the ADDIE model, up to the limited trial stage. The research subjects were 25 grade X high school students. The learning module was validated by material experts and media experts, and the practicality of using the module in learning biodiversity material was tested. The validation results showed that the module was very valid with an average percentage of 98% from material experts and 93.77% from media experts. The practicality of the module was also very high based on teacher responses of 97.77% and student responses of 98.06%. From the results of the validity and practicality tests, it can be concluded that the learning module on genetic biodiversity in local corn plants can be used in learning Biology for grade X high school, biodiversity material in schools. Abstrak. Kurangnya bahan ajar kontekstual yang mengangkat potensi lokal menjadi tantangan dalam pembelajaran biologi di sekolah. Penelitian ini bertujuan untuk mengetahui validitas dan kepraktisan modul pembelajaran keanekaragaman hayati tingkat genetik pada tanaman jagung lokal Gorontalo. Penelitian ini menggunakan metode Research and Development.  Modul pembelajaran dikembangkan dengan menggunakan model ADDIE, hingga tahapan uji coba terbatas. Subjek penelitian adalah 25 peserta didik kelas X SMA. Modul pembelajaran divalidasi oleh ahli materi dan ahli media, serta diuji kepraktisan penggunaan modul dalam pembelajaran materi keanekaragaman hayati.  Hasil validasi menunjukkan bahwa modul sangat valid dengan rata-rata persentase 98% dari ahli materi dan 93,77% dari ahli media. Kepraktisan modul juga sangat tinggi berdasarkan respons guru sebesar 97,77% dan respons peserta didik sebesar 98,06%. Dari hasil uji validitas dan kepraktisan, maka dapat disimpulkan bahwa modul pembelajaran keanekaragaman hayati tingkat genetik pada tanaman jagung lokal dapat digunakan dalam pembelajaran Biologi kelas X SMA, materi  keanekaragaman hayati  di sekolah.
Antimicrobial Activity of Actinomyctes from the Rhizosphere of Pandanus Plants (Pandanus spp.) Putri, Tarissa Eka; Yuliana Retnowati; Novri Youla Kandowangko; Abubakar Sidik Katili; Wirnangsi Din Uno
Journal of Tropical Mycorrhiza Vol. 4 No. 1 (2025): April
Publisher : Asosiasi Mikoriza Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jtm.v4i1.84

Abstract

This quantitative descriptive research aimed to describe the antimicrobial activity and phylogenetic relationships of Actinomycetes from the rhizosphere of pandan (Pandanus spp.). Soil samples were taken from three different villages in Gorontalo Regency, including Bontula Village, Asparaga Sub-district, Lombongo Village, Suwawa Tengah Sub-district, and Moutong Village, Tilongkabila Sub-district, Bone Bolango Regency. Isolation was carried out using SCA media, resulting in six Actinomycetes isolates with different colony morphologies. Antimicrobial activity tests were carried out using the cross-streak method against Escherichia coli, Staphylococcus aureus, Candida albicans, Fusarium oxysporum, and Neocosmospora solani. The results showed that only one isolate, IRzP-at.k, showed significant antimicrobial activity, against Escherichia coli and Staphylococcus aureus with inhibition zones of 13,31 mm and 13,67 mm, respectively. The IRzP-at.k isolate also showed inhibition against Candida albicans and Fusarium oxysporum with inhibition zones of 34,12 mm and 11,25 mm, but did not show inhibition against Neocosmospora solani. Phylogenetic analysis based on 16S rRNA gene sequences identified the isolate as closely related to Streptomyces vinaceusdrappus (97.42% similarity). This research indicated the potential of the IRzP-at.k isolate as a source of new antimicrobial compounds and strengthens the role of the pandan rhizosphere as a habitat rich in Actinomycetes.
VALIDITAS PERANGKAT PEMBELAJARAN MENGGUNAKN MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA MATERI KEANEKARAGAMAN HAYATI Ibrahim, Anisa Saskia; Yusuf, Frida Maryati; Husain, Ilyas H.; Mamu, Hartono D.; Katili, Abubakar Sidik
Jurnal Review Pendidikan dan Pengajaran Vol. 8 No. 2 (2025): Volume 8 No. 2 Tahun 2025
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v8i2.44587

Abstract

Penelitian ini merupakan penelitian deskriptif kuantitatif yang bertujuan untuk mengetahui validitas perangkat pembelajaran berbasis model Problem Based Learning pada materi keanekaragaman hayati. Perangkat pembelajaran yang dirancang meliputi modul ajar dan LKPD. Data yang dikumpulkan melalui penilaian terhadap modul ajar dan Lembar Kerja Peserta Didik (LKPD) kemudian dianalisis menggunakan skala Likert. Hasil validasi menunjukkan bahwa modul ajar memperoleh rata-rata skor 93,33% dan LKPD memperoleh skor 86,89% dari validator pertama, serta modul ajar mendapatkan skor 89,17% dan LKPD 80% dari validator kedua. Dari perspektif praktisi, validasi menunjukkan modul ajar dengan skor 80% dan LKPD 86%. Berdasarkan hasil ini, dapat disimpulkan bahwa perangkat pembelajaran yang dikembangkan termasuk dalam kategori valid hingga sangat valid dan layak digunakan dalam proses pembelajaran.
Validitas E-LKPD Berbasis Strategi KWL (Know-Want-Learned) Pada Materi Ekosistem Untuk Melatih Keterampilan Metakognitif : (Validity of E-LKPD Based on KWL (Know-Want-Learned) Strategy on Ecosystem Material to Train Metacognitive Skills) Sadikin, Agriani; Dama, Lilan; Husain , Ilyas H.; Mardin, Herinda; Katili, Abubakar Sidik
BIODIK Vol. 11 No. 02 (2025): June 2025
Publisher : Program Studi Pendidikan Biologi FKIP Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/biodik.v11i02.44990

Abstract

Biology learning tends to be teacher-centered, resulting in a lack of active student involvement and limited metacognitive skill development. This study aims to determine the validity of the E-LKPD based on the KWL (Know-Want-Learned) strategy on ecosystem material to train students' metacognitive skills. The study used the R&D method with the ADDIE model limited to the Development stage. The research subjects were 18 grade X students of SMA Negeri 6 Gorontalo. Data were collected through teacher interviews and validation by two validators (media and material). The validation results showed that the E-LKPD based on the KWL strategy obtained a "very valid" category with an average percentage of 99% from media experts and 98% from material experts. The developed E-LKPD is suitable for use in biology learning to train students' metacognitive skills and is ready for the implementation stage. Pembelajaran biologi yang cenderung masih berpusat pada guru menyebabkan kurangnya keterlibatan aktif peserta didik dan terbatasnya pengembangan keterampilan metakognitif. Penelitian ini bertujuan untuk mengetahui validitas E-LKPD berbasis strategi KWL (Know-Want-Learned) pada materi ekosistem untuk melatih keterampilan metakognitif peserta didik. Penelitian menggunakan metode R&D dengan model ADDIE yang dibatasi hingga tahap Development. Subjek penelitian adalah peserta didik kelas X SMA Negeri 6 Gorontalo yang berjumlah 18 orang. Data dikumpulkan melalui wawancara guru dan validasi oleh dua validator (media dan materi). Hasil validasi menunjukkan E-LKPD berbasis strategi KWL memperoleh kategori "sangat valid" dengan rata-rata persentase 99% dari ahli media dan 98% dari ahli materi. E-LKPD yang dikembangkan layak digunakan dalam pembelajaran biologi untuk melatih keterampilan metakognitif peserta didik dan siap untuk tahap implementasi.
Co-Authors 5Ilyas H. Husain Abdullah, Septia Am.S Ahmad Hidayat Alfandi Kibu Ali, Fathur Rahman M. Ani M. Hasan Chairunnisah J Lamangantjo Desriyanti Tane Devi Bunga Pagalla Dewi Wahyuni K. Baderan Elya Nusantari Febriyanti Frida Maryati Yusuf Halimu, Nining Hamid, Ririn Septiani Hartono D Mamu, Hartono D Hartono D. Mamu Herinda Mardin Hikmawati Hikmawati Husain , Ilyas H. Husain, Ilyas H. Ibrahim, Anisa Saskia Ilyas Husain Jusna Ahmad Kirsten Caroline Donsi Lamangantjo, Chairunnisa J. Lilan Dama Mamu, Hartono Marini Susanti Hamidun Masra Latjompoh Mirawati Thalib Mooduto, Meikawati muhamad iksan Mustapa, Vinarti Novri Youla Kandowangko Nurdin Nurlena Duhe Nurma Rosalia Oktaviani Rajalawo Paputungan, Kurniasi Pinangsi Lalu Podungge, Rimlawaty Putri, Tarissa Eka Rahim, Srinurningsi K. Ramli Utina Regina Valentine Aydalina Ridwan, Silvana Ariska Riskanarti K. Lihaawa Rumbekwan, Yudit O. R. Sadikin, Agriani Septiani, Ririn Syam S. Kumaji Waode Faridawaty Wirnangsi Din Uno Yasin, Citra Ningrum Yuliana Retnowati Zuliyanto Zakaria