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All Journal Biocaster : Jurnal Kajian Biologi
Lalu Muhammad Aby Dujana
Program Studi Ilmu Lingkungan, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mataram, Jalan Majapahit Nomor 62, Mataram, Nusa Tenggara Barat 83126, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Analisis Perilaku Kebiasaan Membuang Sampah di Pantai Loang Baloq Kota Mataram Nazima Fitria; Komang Ratna Aprilia S; Baiq Fadya Khumaira S; Supardiono Supardiono; Lalu Muhammad Aby Dujana
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1264

Abstract

This study aims to analyze the waste disposal behavior of visitors to Loang Baloq Beach, Mataram City, and the factors influencing it. This study used a quantitative descriptive approach involving 35 respondents selected through accidental sampling in December 2025. Data were collected through a closed-ended questionnaire using a Likert scale, field observations, and documentation, then analyzed descriptively through frequency calculations, percentages, and average values. The results showed that most respondents had a very good level of hygiene knowledge, but proactive behavior in maintaining cleanliness was still low. Basic behavior of disposing of waste in the proper place was high, while advanced behaviors such as picking up trash, bringing home recyclable waste, and reprimanding violators were still rare. This condition was supported by limited trash bin facilities, a lack of warning signs, and a lack of supervision at the study site. These findings indicate a gap between knowledge and practice of hygiene behavior in the Loang Baloq Beach area.
Analisis Perilaku Pelaku Usaha Mikro dan Tindakan Masyarakat terhadap Pembuangan Limbah Industri Tahu-Tempe di Daerah Aliran Sungai Kelurahan Abian Tubuh Baru Kota Mataram Adelia Adelia; Mir’atun Khaerani; Tri Rahmi Fitri Alda; Supardiono Supardiono; Lalu Muhammad Aby Dujana
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1265

Abstract

The micro-scale tofu-tempeh industry in Abian Tubuh Baru Village has a strategic economic role, but its production activities produce liquid waste with a high organic load that risks degrading the aquatic ecosystem. This study aims to analyze in depth the behavior of micro-business actors in liquid waste management, as well as the community's social response to waste disposal in the Abian Tubuh Baru Village Watershed. The research method used is descriptive qualitative with a case study approach. Data were collected through field observations and in-depth interviews with business actors and the surrounding community who were selected purposively until data saturation was achieved. Data analysis was carried out thematically using the Miles & Huberman interactive model. The results showed that liquid waste is still discharged directly into water bodies without treatment due to the persistence of habitual factors, limited environmental literacy, and the absence of waste processing infrastructure facilities. This condition causes a significant decline in river water quality, characterized by changes in physical parameters (color and turbidity), and the emergence of a pungent odor due to organic decomposition. The community shows a tendency to act passively through environmental normalization by choosing to stop using river water rather than carrying out social control. These findings imply the urgency of community-based environmental awareness-building interventions for sustainable river pollution mitigation.
Perilaku Pemakaian Plastik Sekali Pakai oleh Mahasiswa dalam Aktivitas di Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mataram Baiq Yuni Ariati Auliya; Heppy Tasya Pibiputri; Royan Supriyadi; Supardiono Supardiono; Lalu Muhammad Aby Dujana
Biocaster : Jurnal Kajian Biologi Vol. 6 No. 2 (2026): April
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v6i2.1266

Abstract

Single-use plastic remains a major pollution problem in the campus environment. This study aims to analyze the single-use plastic consumption behavior of students in the Faculty of Mathematics and Natural Sciences (FMIPA) at the University of Mataram based on the Theory of Planned Behavior (TPB), including attitudes, subjective norms, perceived behavioral control, intentions, and actual behavior. This study used a descriptive quantitative approach, with 94 students selected through stratified random sampling from six study programs as respondents. Data were collected using a 1–5 Likert scale questionnaire and analyzed descriptively. The results showed that all TPB constructs tended to be in the moderate category, indicating that environmental awareness has been established but has not yet developed into consistent behavioral habits. A similar trend was seen across attitudes, subjective norms, perceived behavioral control, and actual behavior. The Environmental Science Study Program consistently scored higher than other study programs, indicating that an ecologically based academic culture plays a crucial role in establishing stronger social norms, thus enabling environmentally conscious behavior to be realized.
Co-Authors Adelia Adelia Baiq Fadya Khumaira S Baiq Yuni Ariati Auliya Heppy Tasya Pibiputri Komang Ratna Aprilia S Mir’atun Khaerani Nazima Fitria Royan Supriyadi Supardiono Supardiono Tri Rahmi Fitri Alda