<![CDATA[Indonesia's coastal areas encompass important ecosystems such as mangroves, seagrass beds, and coral reefs, which play a role in supporting capture fisheries productivity. However, ecosystem degradation due to human activities has the potential to reduce habitat quality and the availability of fish resources for traditional fishermen. This study aims to assess the condition of the coastal ecosystem in Lakudo Village and analyze its role as an ecological foundation for traditional fishermen's capture fisheries productivity. The study used a descriptive qualitative approach with a case study method. Primary data were obtained through semi-structured interviews with traditional fishermen and field documentation, while secondary data came from village reports and scientific publications. Data analysis was conducted thematically to identify the socio-ecological relationships between coastal ecosystem conditions and fisheries productivity. The research results indicate that seagrass beds and coral reefs continue to support capture fisheries, while the presence of mangroves at the study site is relatively limited. Fishers have also reported a downward trend in their catch over the last three years, which is attributed to an increase in the number of fishers and competition for the utilization of fish resources. The results of the study are expected to support sustainable coastal resource management and strengthen local community food security. Keywords: coastal ecosystems; capture fisheries; productivity; mangrove–seagrass; fishermen Abstrak Wilayah pesisir Indonesia memiliki ekosistem penting seperti mangrove, padang lamun, dan terumbu karang yang berperan dalam mendukung produktivitas perikanan tangkap. Namun, degradasi ekosistem akibat aktivitas manusia berpotensi menurunkan kualitas habitat dan ketersediaan sumber daya ikan bagi nelayan tradisional. Penelitian ini bertujuan mengkaji kondisi ekosistem pesisir Desa Lakudo serta menganalisis perannya sebagai landasan ekologis produktivitas perikanan tangkap nelayan tradisional. Penelitian menggunakan pendekatan kualitatif deskriptif dengan metode studi kasus. Data primer diperoleh melalui wawancara semi-terstruktur dengan nelayan tradisional dan dokumentasi lapangan, sedangkan data sekunder berasal dari laporan desa dan publikasi ilmiah. Analisis data dilakukan secara tematik untuk mengidentifikasi hubungan sosial-ekologis antara kondisi ekosistem pesisir dan produktivitas perikanan. Hasil penelitian menunjukkan bahwa padang lamun dan terumbu karang masih mendukung aktivitas perikanan tangkap, sedangkan keberadaan mangrove di lokasi penelitian relatif terbatas. Nelayan juga melaporkan kecenderungan penurunan hasil tangkapan dalam tiga tahun terakhir, yang dikaitkan dengan meningkatnya jumlah nelayan dan persaingan pemanfaatan sumber daya ikan. Temuan ini diharapkan mendukung pengelolaan sumber daya pesisir yang berkelanjutan serta memperkuat ketahanan pangan masyarakat lokal. Kata kunci: ekosistem pesisir; perikanan tangkap; produktivitas; mangrove–lamun; nelayan]]>
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