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All Journal Journal of Innovative and Creativity JUSTE (Journal of Science and Technology)
Salim Souwakil
Universitas Muhammadiyah Maluku
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Identification and Characteristics of Marine Debris on the Poka Beach Coast, Ambon Bay: A Quantitative Analysis of Material Composition Laole Laole; Aniesa Nabila; Kamal Mewar; Salim Souwakil
JUSTE (Journal of Science and Technology) Vol. 6 No. 1 (2025): JUSTE (Journal of Science and Technology)
Publisher : LLDIKTI WIlayah XII Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51135/xbc76s04

Abstract

Marine debris constitutes an anthropogenic pollutant, causing significant negative impacts on the structure and function of aquatic ecosystems. This research aimed to analyse the composition, spatial distribution, and quantitative characteristics of marine debris along Poka Beach, Inner Ambon Bay. Data collection was conducted in July 2025 using a 100-meter transect method divided into five observation plots measuring 5×5 meters each. Macro marine debris samples (2.5 cm– 1 meter) were identified, classified by material type, and analysed quantitatively for composition, density, and biomass. Results revealed 581 marine debris items with a total biomass of 7,098.62 grams, unevenly distributed across sampling locations. Plastic dominated the composition with 357 items (61.4%) and biomass of 3,382.56 grams (47.7%), followed by plastic foam with 185 items (31.8%) and biomass of 219.03 grams (3.1%). Debris density varied significantly between 1.8–8.8 items/m², averaging 4.64 ± 2.87 items/m². Plot 2 showed the highest accumulation (220 items, 8.8 items/m²), while Plot 4 showed the lowest (45 items, 1.8 items/m²). High-density materials such as wood (1.5% of items) and rubber (2.2% of items) contributed significantly to biomass at 26.2% and 15.2%, respectively. Spatial distribution heterogeneity (CV=61.9%) indicates the influence of local hydrodynamic factors and proximity to anthropogenic pollutant sources. Plastic dominance is consistent with global patterns; however, high spatial variability demonstrates the importance of adaptive management approaches. This research provides baseline data for developing marine debris pollution mitigation strategies in Eastern Indonesia and supports sustainable management program implementation.
Karakteristik Distribusi Sampah Laut dan Evaluasi Indeks Kebersihan Pantai di Wilayah Pesisir Kota Ambon: Studi Kasus Muara Kali Wairuhu desa Galala Laole; Aniesa Nabila; Kamal Mewar; Salim Souwakil
Journal of Innovative and Creativity Vol. 5 No. 2 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i2.3001

Abstract

Penelitian ini menganalisis karakteristik distribusi sampah laut dan evaluasi indeks kebersihan pantai di Muara Kali Wairuhu, Desa Galala, Kota Ambon. Metodologi penelitian menggunakan pendekatan kuantitatif dengan teknik Transek sistematis bertingkat pada area sampling seluas 125 m² yang terdistribusi dalam lima sub-transek berukuran 5m × 5m. Inventarisasi sampah laut mengidentifikasi 232 item marine debris dengan massa total 7.318,62 gram, menunjukkan dominasi material polimer sintetis (plastik) sebesar 44,8% (n=104 item) dan material kaca-keramik 37,5% (n=87 item). Analisis distribusi spasial mengungkapkan heterogenitas yang ekstrem dengan kepadatan bervariasi dari 0,20 hingga 3,04 items/m² antar sub-transek. Evaluasi Clean Coast Index (CCI) menunjukkan kepadatan plastik rata-rata 0,832 item/m² yang mengklasifikasikan lokasi penelitian dalam kategori "kotor" dengan nilai CCI 10-20. Variabilitas spasial CCI yang signifikan (0-2 hingga >20) mengindikasikan adanya hotspot akumulasi debris dengan sub-transek 1 dan 5 mencapai status "sangat kotor" (CCI >20). Temuan ini mengkonfirmasi bahwa sistem estuari Kali Wairuhu telah mengalami deteriorasi kapasitas asimilatif alamiah dan memerlukan implementasi strategi pengelolaan debris yang komprehensif dan site-specific untuk mencegah progresivitas degradasi ekosistem menuju kondisi irreversible.
Co-Authors Aniesa Nabila Kamal Mewar Laole Laole Laole