Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
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This Author published in this journals
All Journal Journal of Academic Biology and Biology Education
Punya Madee
Khukhan School
Biochemistry, Genetics & Molecular Biology Education Veterinary Other

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Integrated Correlation Analysis of Phytoplankton Community Structure and Physicochemical Parameters for Water Quality Assessment in Ranu Grati, Indonesia Nayunda Bella Justicia; Punya Madee
Journal of Academic Biology and Biology Education Vol. 3 No. 1 (2026): June
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jouabe.v3i1.3224

Abstract

Purpose of the study: This study aimed to analyze the relationship between phytoplankton abundance and physicochemical parameters in the waters of Ranu Grati and to evaluate the water quality status based on Government Regulation of the Republic of Indonesia Number 22 of 2021. Methodology: This study employed a descriptive quantitative method using field observation and laboratory analysis. Water samples were collected from several sampling stations in Ranu Grati. Physicochemical parameters were measured using a thermometer, Secchi disk, pH meter, DO meter, and spectrophotometer. Phytoplankton identification was conducted microscopically using an Olympus binocular microscope, while correlation analysis was performed using Microsoft Excel and SPSS software. Main Findings: A total of 18 phytoplankton genera belonging to six divisions were identified in the waters of Ranu Grati. Temperature, pH, dissolved oxygen, and total nitrogen met the Class III water quality standards, whereas transparency, BOD, COD, and total phosphate exceeded the permissible limits. Correlation analysis revealed that transparency, dissolved oxygen, BOD, COD, total nitrogen, and total phosphate strongly influenced phytoplankton abundance and distribution patterns. Novelty/Originality of this study: This study provides updated scientific information regarding the ecological relationship between phytoplankton communities and physicochemical parameters in Ranu Grati waters using correlation-based analysis integrated with national water quality standards. The findings contribute to the development of ecological monitoring data and provide a scientific basis for sustainable lake management and aquatic ecosystem conservation in tropical inland waters.
The Influence of Student Perceptions on Learning Outcomes in the Food Microbiology Course Ismail Ismail; Punya Madee
Journal of Academic Biology and Biology Education Vol. 1 No. 2 (2024): December
Publisher : Cahaya Ilmu Cendekia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37251/jouabe.v1i2.3101

Abstract

Purpose of the study: This study aims to determine the description of students' perceptions of the Food Microbiology course, analyze students' learning outcomes in the course, and identify the influence of students' perceptions on learning outcomes to provide a basis for developing more effective learning strategies in higher education environments. Methodology: This study employed a quantitative approach with a survey method. The research instruments consisted of a Likert-scale questionnaire and documentation of learning outcome scores. The sampling technique used simple random sampling. Data analysis was performed using descriptive statistics, the Kolmogorov-Smirnov normality test, ANOVA linearity test, Product Moment correlation, and simple linear regression using IBM SPSS Statistics software. Main Findings: Student perceptions of the Food Microbiology course were moderate, while student learning outcomes were generally good. The research data were normally distributed and met the linearity assumption. Correlation analysis showed a strong relationship between student perceptions and learning outcomes. Simple linear regression results indicated that student perceptions significantly influenced learning outcomes in the Food Microbiology course. Novelty/Originality of this study: The novelty of this research lies in its empirical analysis of the influence of student perceptions on learning outcomes, specifically in Food Microbiology courses, a topic rarely studied. This research provides a novel contribution to understanding the importance of student perceptions as a determinant of academic success and serves as a basis for developing more contextual and effective learning strategies.
Co-Authors Ismail Ismail Nayunda Bella Justicia