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All Journal AGROTEKBIS Bioscientist : Jurnal Ilmiah Biologi Indonesian Journal of Applied and Industrial Sciences (ESA) AGROTEKBIS: Jurnal Ilmu Pertanian Journal of Biology Science and Education
Abd. Rauf
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Immunology & microbiology Industrial & Manufacturing Engineering Social Sciences

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Kelimpahan Kepiting Scylla sp. di Kawasan Hutan Mangrove Desa Lalombi Kecamatan Banawa Selatan Kabupaten Donggala dan Pemanfaatannya Sebagai Media Pembelajaran Khaerunnisa; Bustamin; Rauf, Abd.; Ramadhan, Achmad; Sabran, Moh.; Trianto, Manap
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

Abstract

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.
Penerapan Model Pembelajaran Problem Based Learning (PBL) Dalam Meningkatkan Hasil Belajar Siswa Pada Mata Pelajaran Biologi Kelas X di SMK Manbaul Hikmah Istikomah; Alibasyah, Lestari M.P; Buntu, Amalia; Agni, Raya; Rauf, Abd.; Jamhari, Mohammad
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.v13i4.18916

Abstract

This study aims to improve students' learning outcomes in Biology for Grade X students of SMK Manbaul Hikmah through the implementation of the Problem Based Learning (PBL) model. The research employed a descriptive qualitative approach using a Classroom Action Research (CAR) design conducted in two cycles. Each cycle consisted of planning, action implementation, observation, and reflection stages. Data were collected through observation sheets of teacher and student activities as well as learning outcome tests administered at the end of each cycle. The results indicate that the application of the PBL model significantly improved students' learning outcomes. In Cycle I, classical learning mastery reached 85%, while in Cycle II it increased to 92%. The 7% improvement in classical mastery demonstrates that the PBL model is effective in encouraging students to think critically, collaborate, and solve problems related to contextual learning materials. In addition, students' activity and engagement during the learning process showed continuous improvement in each cycle. Therefore, the Problem Based Learning model can be considered an effective alternative for improving Biology learning outcomes of Grade X students at SMK Manbaul Hikmah.
Co-Authors Achmad Ramadhan Amran Rede Annisa, Rezky Arifin, Moh. Aris Arsyad Arsyad Artinya, Indri A. Astija Bialangi, Mursito S. Bolong, Aprianto Bustamin Bustamin Bustamin Dirman, Eris Nur Erna, Ni Kadek Fatmah Dhafir Hamzah Hamzah Hj. Musdalifah Nurdin Istikomah Jamaluddin Jamaluddin Janah, Nidya Khusni Fatul Jannah, Uraefatul Khaerunnisa Lestari M.P Alibasyah Maemunah Maemunah Mahfudz Mahfudz Manap Trianto Mohammad Jamhari Muhammad Ihsan Raya Agni Reno, Reno Ruslan Bauna Sabran , Moh. Shamdas, Gamar B.N. Siti Nurhaliza Sutrisnawati Mardin Syamsiar, Syamsiar Syech Zainal Yesika, Veronika