<![CDATA[Mangrove ecosystems play an important role in maintaining the balance of coastal environments, protecting shorelines from abrasion, and supporting climate change mitigation through their carbon storage capacity. However, the coastal area of Gampong Lamnga, Aceh Besar District, has experienced a decline in mangrove vegetation, which has increased the risk of coastal environmental degradation. This community service activity aimed to enhance community awareness and participation in coastal ecosystem conservation through mangrove planting in commemoration of Earth Day. The activity was conducted on 26–27 April 2025 and involved lecturers, students, village officials, local communities, and mangrove farmers. The implementation method adopted a participatory approach consisting of site surveys, team coordination, environmental education and awareness-raising, mangrove planting, and initial activity evaluation. The results showed an increase in community participation and concern regarding the importance of mangrove conservation. Mangrove planting was carried out by considering substrate conditions, planting distance, and tidal patterns to provide the seedlings with favorable growth opportunities. In addition to generating ecological benefits through coastal area rehabilitation, this activity also improved community knowledge of the role of mangroves in maintaining environmental sustainability. Therefore, this community service activity can serve as a community-based conservation model that supports the sustainable resilience of coastal ecosystems]]>
