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All Journal Jurnal Biologi Tropis
Saputra, Dewa Gde Tri Bodhi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Mapping of Stranded Marine Biota Incidents in 2025 in the Denpasar BPSPL Work Area: A Spatial Perspective Febrianti, Nova; Indriyawan, Muji Wasis; Saputra, Dewa Gde Tri Bodhi; Jefri, Edwin
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
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.v25i4b.10913

Abstract

Indonesia’s coastal areas experience frequent marine biota stranding events, particularly in regions with high human activity. This study aims to describe the spatial distribution of marine biota strandings recorded in 2025 within the working area of BPSPL Denpasar, covering Bali, East Java, West Nusa Tenggara, and East Nusa Tenggara Provinces. Data were collected from field response activities and reports submitted by local communities and related institutions, then analyzed descriptively and mapped using Geographic Information Systems (GIS) with ArcMap 10.8. A total of 21 stranding events were recorded, dominated by whales and sea turtles, with most individuals found dead (71.4%), resulting in burial as the most commonly applied handling method. Spatial analysis indicates that stranding events were mainly concentrated along the western–northern coast of Bali, the southern coast of East Java, and the northern coast of Timor Island. These findings demonstrate that GIS-based mapping is effective for identifying stranding-prone areas and can support improved response strategies and sustainable marine conservation efforts.
A Decade of Dugong (Dugong dugon) Strandingsin Indonesia: Frequency and Response Efforts (2016–2025) Saraswati, Suprabadevi Ayumayasari; Putra, I Putu Gede Eka Handrayana; Kartika, I Wayan Darya; DZulfikar, Rizka; Saputra, Dewa Gde Tri Bodhi
Jurnal Biologi Tropis Vol. 26 No. 3 (2026): in Progress
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.v26i3.12448

Abstract

Indonesian waters constitute a crucial habitat for the dugong (Dugong dugon), a herbivorous marine mammal currently classified as vulnerable. Despite being legally protected, its existence remains threatened by anthropogenic activities and stranding phenomena. This study aims to analyze the temporal frequency of dugong stranding events in Indonesia and the effectiveness of their technical response schemes. The method employed is a descriptive approach with quantitative and qualitative analyses utilizing verified secondary data from the 2016–2025 period. The results show that a total of 54 stranding events occurred fluctuatingly, with an average of 5–6 cases per year. The highest spike occurred in 2021 with 12 events, while the lowest was in 2020 with 1 event. The monthly stranding pattern is dynamic, reaching its highest peak in February, whereas the monsoon-based analysis demonstrates an even distribution of approximately 24%–26% per monsoon. This finding indicates that the risk of stranding remains persistent throughout the year. Out of the total cases, the majority of dugongs were found dead (90.74%), while the remaining (9.26%) were found alive. Qualitatively, the systematic handling procedures in the field have been structured into four main phases that separate actions based on the animal's condition code. Response for the live code (Code 1) focuses on first aid and release, whereas the dead code (Code 2–5) is prioritized for medical investigation (forensic necropsy) and burial.
Co-Authors Dzulfikar, Rizka febrianti, nova Jefri, Edwin Kartika, I Wayan Darya Muji Wasis Indriyawan, Muji Wasis Putra, I Putu Gede Eka Handrayana Suprabadevi Ayumayasari Saraswati, Suprabadevi Ayumayasari