Open access Jurnal
Accumulation, Composition, Density, and Volume of Marine Litter on Palu Bay
Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan · Vol. ume (2026) · pp. 49–56
- ISSN
- 2721-5717, 2747-2124
- Published
- 2026-03-28
- Publisher
- Departemen Teknik Kelautan Universitas Hasanuddin
- Language
- en
Abstract
Marine litter poses an increasing threat to the coastal ecosystem of Palu Bay, Indonesia, driven by contrasting land-based human activities. This study assessed the accumulation, composition, density, and volume of macro-debris (>2.5 cm) at four coastal stations representing residential, river-influenced, and tourism-dominated areas. Surveys were conducted from June to September 2025 using a line transect method. The results showed marked spatial differences in marine litter characteristics. Residential and river-influenced sites (Baiya and Mamboro Beaches) recorded the highest debris weights (4003.67–4378.22 g/m²), dominated by heavier household waste transported via river systems. In contrast, tourism areas (Taman Ria and Kampung Nelayan Beaches) exhibited lower debris weights (1697.67–1892.37 g/m²) but significantly higher item densities (14.46–17.28 items/m²) and volumes, reflecting the dominance of lightweight, single-use plastics from recreational activities. Plastic debris dominated all stations, exceeding 94% in tourism zones. These findings demonstrate a clear dichotomy in litter sources and characteristics between tourism and residential areas, underscoring the need for targeted management strategies. Effective mitigation should prioritize single-use plastic restrictions, adequate waste facilities, and visitor awareness in tourism areas, alongside improved household waste collection and riverine waste control in residential watersheds. Such source-specific approaches are essential for sustainable coastal management in Palu Bay and comparable semi-enclosed bays.
Keywords
Collaboration network of the authors
31 authors · 136 co-authorship links
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- Universitas Duta Bangsa
- Institut Agama Islam Negeri Kendari
- Affiliation unknown
- Different organisations
- Same organisation
- Affiliation unknown
- Thicker line = more joint articles · bigger circle = more articles
Show as table
| Co-author | Organisation | Joint articles |
|---|---|---|
| Bangun Prajadi Cipto Utomo | Universitas Duta Bangsa | 1 |
| Hanifah Permatasari | Universitas Duta Bangsa | 1 |
| Damhuri Damhuri | Affiliation unknown | 1 |
| Hittah Wahi Sudrajat | Affiliation unknown | 1 |
| Salwiah Salwiah | Institut Agama Islam Negeri Kendari | 1 |
| La Ode Hadini | Affiliation unknown | 1 |
| Amniar Ati | Affiliation unknown | 1 |
| Mamat Ruhimat | Affiliation unknown | 1 |
| Moh. Dede | Affiliation unknown | 1 |
| Rahma Musyawarah | Affiliation unknown | 1 |
| Laode Muhamad Irsan | Affiliation unknown | 1 |
| Fitriyani Saudi | Affiliation unknown | 1 |
| Ema Hermawati Garusu | Affiliation unknown | 1 |
| Abdur Rahman Arif | Affiliation unknown | 1 |
| Andi Arjuna | Affiliation unknown | 1 |
| Achmad Himawan | Affiliation unknown | 1 |
| Vidya Amaliatul Jannah Yusuf | Affiliation unknown | 1 |
| Tifanny Dewi Wijaya | Affiliation unknown | 1 |
Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.