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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Clarias : Jurnal Perikanan Air Tawar
Uun Febriyani
Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Physics

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POLA PENYEBARAN KEPITING BIOLA (Uca sp.) DI KAWASAN MANGROVE CURAHSAWO PROBOLINGGO, JAWA TIMUR Agung Riswandi; Uun Febriyani
Clarias : Jurnal Perikanan Air Tawar Vol. 3 No. 1 (2022): Clarias : Jurnal Perikanan Air Tawar
Publisher : Universitas Sumatera Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56869/clarias.v3i1.345

Abstract

One type of crab that has habitat in intertidal areas is the Violin Crab (Uca sp.)l, especially around the mangrove forest area. This research was conducted in the mangrove area of Curahsawo, East Java in April 2020. The purpose of this study was to determine the structure of the Violin Crab community in the mangrove area of Curahsawo Probolinggo. Parameters measured were soil pH, soil organic matter and soil texture. There are 3 sampling points, namely station 1 in the mangrove area, station 2 in the pond area, and station 3 in the estuary area. The results of environmental quality measurements at the research location were that the highest soil pH was around 8.03, while the highest soil organic matter was 3.106%, and the soil types were dusty clay and sandy loam. Uca rosea, Uca lactea, Uca vocans, Uca perplexa, Uca dussumieri, Uca demani are 6 types of violin crabs found in the Curahsawo mangrove ecosystem. , Uca demani and grouped for Uca rosea and Uca perplexa. The results of the distribution of violin crabs on the type of soil texture were very visible in the scattered Uca perplexa crabs because at all soil sampling points the highest number was 16 ind/m2 in both types of soil textures.
Penerapan Rating Scale Observasi Penerapan Rating Scale Observasional terhadap Keaktifan Mahasiswa PGMI dalam Diskusi Analisis Soal IPA Destiana Puanda Ashari; Ikhlasul Ardi Nugroho; Anita Ekantini; Uun Febriyani; Yanti Kumala Sembiring; Waode Sitti Fatimah; Annisa Rifah Rahman
Jurnal Penelitian Pendidikan IPA Vol 12 No 5 (2026): In Progress
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i5.13581

Abstract

This study aims to develop, validate, and examine the practicality of a rating-scale–based observation instrument designed to assess the activeness of PGMI students during science question analysis discussions. A quantitative descriptive approach was employed, involving 40 fifth-semester PGMI students. The instrument was developed based on learning activity theory and a multidimensional student engagement framework, consisting of 9 indicators and 27 items rated on a 1–4 scale. Content validity was evaluated by three experts using Aiken’s V index. At the same time, instrument practicality was assessed by five trained observers acting as instrument users through a user satisfaction questionnaire based on a 1–5 Likert scale. The results indicated very high content validity, with an average Aiken’s V value of 0.97, and excellent practicality, reflected by a mean user satisfaction score of 4.36 out of 5. The application of the instrument revealed that student activeness fell into the high category, with an average activity score of 89.70 (SD = 11.22), and 90% of students were classified as active to very active. These findings demonstrate that the developed observation instrument is valid and practical for evaluating student activity in discussion-based learning, particularly within teacher education contexts.
Co-Authors Agung Riswandi Anita Ekantini Annisa Rifah Rahman Destiana Puanda Ashari Ikhlasul Ardi Nugroho Waode Sitti Fatimah Yanti Kumala Sembiring