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Presumptive Analysis of Escherichia coli in Asian Moon Scallop (Amusium pleuronectes) as a Bioindicator of Water Quality in Lampung Bay Monik, Della Tiara; Karin, Nadia Elvira
Jurnal Biologi Tropis Vol. 25 No. 3 (2025): Juli-September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i3.9728

Abstract

The asian moon scallop (Amusium pleuronectes) is a high-value fishery commodity and serves as a natural bioindicator of water quality due to its filter-feeding behavior. This research aimed to analyze Escherichia coli contamination in scallop products from Lampung Bay as an indicator of microbiological and environmental conditions. Testing was conducted at the Microbiology Laboratory of UPTD PMHP, Lampung Province, using the Indonesian National Standard (SNI) 2332.1:2015. The presumptive test using Lauryl Tryptose Broth (LTB) showed five positive tubes: three at 10⁻¹, one at 10⁻², and one at 10⁻³ dilution. However, confirmatory tests using Brilliant Green Lactose Bile Broth (BGLB), EC Broth, and L-EMB Agar all showed negative results for E. coli, with a Most Probable Number (MPN) value of <3 MPN/g. Environmental quality assessment indicated that physicochemical parameters complied with marine water quality standards. The pH ranged from 7.8–8.0, temperature was 27–30°C, salinity ranged from 30–34 ppt, and DO was >5 mg/L. The results demonstrate that the scallop products are microbiologically safe and that the surrounding waters meet environmental quality standards, supporting sustainable shellfish cultivation. Routine monitoring, enhanced waste management, and fortified bioindicator-based assessments are recommended to ensure long-term food safety and environmental sustainability in coastal regions.
Effectiveness of Forest and Land Fire Mitigation in South Sumatra: An Analytical Approach using Analytical Hierarchy Process and Importance Performance Analysis Novitasari; Monik, Della Tiara
Jurnal Sylva Lestari Vol. 13 No. 3 (2025): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v13i3.1247

Abstract

In Indonesia, forest and land fires remain a major environmental issue. In 2022, South Sumatra recorded 51,972 ha of burned land, accounting for 25% of the nationwide total. These incidents resulted in severe air pollution, health risks, economic losses, and environmental degradation, underscoring the urgency of mitigation. This research employs a mixed-methods approach, combining Kernel density analysis, the Analytical Hierarchy Process (AHP), and Importance Performance Analysis (IPA) to assess fire mitigation in South Sumatra. The results indicate that Ogan Komering Ilir, Ogan Ilir, Penukal Abab Lematang Ilir, Musi Rawas, and Prabumulih are the most fire-prone districts. Human activity was the dominant factor (0.80), particularly land clearing. The AHP analysis indicated that prevention is the highest priority (0.77), reflecting its cost-effectiveness and sustainability compared to suppression. The IPA emphasized three preventive measures as most effective: hotspot monitoring, water reservoirs, and canal blocks. Hotspot monitoring enables early detection and rapid response, reservoirs maintain soil moisture to reduce fire risk, and canal blocks restore peatland hydrology to limit large-scale burning. Suppression (0.14) ranked second, highlighting its necessity for a rapid response despite its lower effectiveness and higher cost. Management (0.09), although the lowest weighted, remains important for land rehabilitation and ecosystem restoration, despite requiring time and resources. Overall, these findings demonstrate that effective mitigation depends on prioritizing prevention through technology-driven monitoring and water management infrastructure, supported by regulatory enforcement. Suppression and management serve as complementary strategies to strengthen ecosystem resilience. This research provides a foundation for integrating fire prevention into governance frameworks, supporting sustainable forest management in South Sumatra and other fire-prone districts. Keywords: Analytical Hierarchy Process, forest and land fires, Importance Performance Analysis, mitigation, South Sumatra