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Association Analysis of Seagrass Coverage and Human Activities in Nusa Lembongan Wardono, Suko; Sobhytta, Elland Yupa; Dhananjaya, I Gusti Ngurah Agung; Lasniroha, Rodo; Pumpun, Yuniarti Karina; Mashuda, Mochammad Miftakhul; Saputra, Dewa Gde Tri Bodhi; Yudiarso, Permana
Jurnal Biodjati Vol 7 No 2 (2022): November
Publisher : UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/biodjati.v7i2.20307

Abstract

Nusa Lembongan has high marine biodiversity, including seagrass. Seagrass is a plant that lives submerged in a marine or estuary water that functions as a nursery ground, trapping sediment, and beach protector, so it is important to know the condition of seagrass coverage, especially in Nusa Lembongan for managing the Nusa Penida Marine Protected Area. This study aimed to understand the condition of seagrass coverage and the factors influencing the existence of its ecosystem in Nusa Lembongan. According to reslut in two stations, it was found that six of the twelve types of seagrasses in Indonesia, namely Enhalus acoroides, Thalassia hemprichii, Cymodocea serrulata, Cymodocea rotundata, Halodule pinifolia, and Halophila ovalis. From the two stations (LMB01 and LMB02), the total seagrass coverage was 38.10±30.98% or the medium category. The seagrass communities in the station areas were generally formed by 3 types of seagrasses; Thalassia hemprichii, Cymodocea serrulata, and Cymodocea rotundata. LMB02 has higher seagrass coverage than LMB01. The seagrass coverage is inversely proportional to the intensity of human activity.
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.