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All Journal Wahana-Bio: Jurnal Biologi dan Pembelajarannya Jurnal Biogenerasi
Rita Rahmayanti
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Other

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Revitalisasi Modul Praktikum Anatomi Fisiologi Manusia Berbasis QR Code: Analisis Kebutuhan dan Respon Mahasiswa Annesha Rahmadayanti; Prendi Niki Halhaji; Rita Rahmayanti; Pani Aswin
Wahana-Bio: Jurnal Biologi dan Pembelajarannya Vol 18, No 1 (2026): WAHANA-BIO EDISI MEI 2026
Publisher : Program of Biology Education, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/wb.v18i1.25925

Abstract

This study aims to analyze student needs and describe student responses to the limited trial of a revitalized Human Anatomy and Physiology (HAP) laboratory manual integrated with QR Codes as multimedia enrichment access. Revitalization here refers to the comprehensive updating of an existing module, encompassing content substance, procedural instructions, materials alignment, and the addition of digital media via QR Codes. The study employed the ADDIE model; data were collected through four Likert-scale questionnaires and one open-ended evaluation sheet, analyzed descriptively using quantitative and qualitative approaches. Needs analysis involved 57 active students and 23 alumni; the limited trial was conducted with 33 students for one practicum topic due to time constraints. Results showed a very high practicality level with an average student response score of 91.3%. QR Code integration proved effective as a comprehensive pre-lab guide, and qualitative feedback from laboratory assistants confirmed a significant reduction in repetitive technical instruction. This study is limited in scope, covering only one of six practicum topics, and formal expert validation was not conducted.
KEANEKARAGAMAN DAN KELIMPAHAN FITOPLANKTON SEBAGAI BIOINDIKATOR KUALITAS AIR DI SUNGAI ANDALAS, KABUPATEN SELUMA Igusti Nesa Kusuma; Najwa Henggellina; Dewi Erliani; Markus Wahyu Dinata Manurung; Abdul Rahman; Rita Rahmayanti
Jurnal Biogenerasi Vol. 11 No. 3 (2026): Juli - September 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/v11hsk32

Abstract

The Andalas River is located in Seluma Regency, Bengkulu Province and is used by the community as a source of raw water for PDAM, however, river rock mining activities, waste disposal by rubber factories, and water extraction have the potential to reduce the water quality of the Andalas River. This research aims to analyze the diversity and abundance of phytoplankton as a bioindicator of water quality in the Andalas River. Sampling was carried out in March-April 2026 at three stations using a purposive sampling method using a plankton net, then analyzed using the Shannon-Wiener index (H'), uniformity (E), and dominance (C). The research results found 51 types of phytoplankton from 8 divisions, namely Bacillariophyta, Chlorophyta, Euglenophyta, Charophyta, Cyanophyta, Dinophyta, Ochrophyta, and Cryptophyta, with the most dominant division being Bacillariophyta. The highest diversity and abundance was found at Station 1 (32 species; 286 individuals/L; H' = 3.323), followed by Station 2 (28 species; 137 individuals/L; H' = 2.986), and Station 3 (23 species; 105 individuals/L; H' = 0.177). The dominance index values ​​for the three stations are close to 0, indicating that there are no species that dominate excessively. Water quality varies from good condition (Station 1), moderately polluted (Station 2), to heavily polluted (Station 3). Physico-chemical parameters in the form of pH, temperature and DO show that river conditions are still within the range that supports phytoplankton life.
ANALISA PERBANDINGAN KADAR LOGAM BERAT TIMBAL (PB) PADA SAYUR KANGKUNG (IPOMOEA AQUATICA) YANG DIJUAL DI PASAR TRADISIONAL KOTA BENGKULU Theofilo Bethrisdi; Yetri Valentina; Annisa Suciramadani; Serli Sofia; Abdul Rahman Singkam; Rita Rahmayanti
Jurnal Biogenerasi Vol. 11 No. 4 (2026): Volume 11 Nomor 4, 2026
Publisher : Universitas Cokroaminoto Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30605/v1pjf081

Abstract

Penelitian ini dilakukan bertujuan untuk mengetahui kandungan logam berat timbal (Pb) pada kangkung (Ipomoea aquatica) yang dijual di Pasar Panorama dan Pasar Minggu Kota Bengkulu. Pengambilan sampel dilakukan pada empat lokasi, yaitu pasar bagian dalam dan pasar bagian luar, dengan tiga kali pengulangan pengujian pada waktu yang berbeda. Sampel yang diuji meliputi bagian daun, akar, dan batang kangkung menggunakan metode Spektrofotometer Serapan Atom (SSA/AAS) di Laboratorium Badan Perakitan dan Modernisasi Pertanian (BRMP) Kota Bengkulu. Hasil penelitian menunjukkan bahwa seluruh sampel kangkung tidak terdeteksi mengandung timbal (Pb) dengan hasil sebesar 0,00 ppm pada setiap pengujian. Hasil tersebut menunjukkan bahwa kandungan Pb pada kangkung masih berada di bawah ambang batas cemaran logam berat berdasarkan ketentuan BPOM Tahun 2022 sebesar 2 ppm sehingga kangkung yang dijual di Pasar Panorama dan Pasar Minggu masih aman untuk dikonsumsi masyarakat.
Co-Authors Abdul Rahman Singkam Annesha Rahmadayanti Annisa Suciramadani Aswin, Pani Dewi Erliani Igusti Nesa Kusuma Markus Wahyu Dinata Manurung Najwa Henggellina Prendi Niki Halhaji Serli Sofia Theofilo Bethrisdi Yetri Valentina