Maricel M. Aguirre1 , Julito Jr S. Gutang1,Rey Ar C. Maningo3, Noraisa E. Salipada1 ,Jecelle Lou F. Alajas1'2, Floriefe M. Gonzaga-Torino1
1College of Fisheries, Mindanao State University – Buug, Datu Panas, Buug, Zamboanga Sibugay, 7009 Philippines., 2College of Fisheries, Mindanao State University – Buug, Datu Panas, Buug, Zamboanga Sibugay, 7009 Philippines.
Email: noraisa.salipada@msubuug.edu.ph
ABSTRACT
This study evaluated the species composition, abundance, and ecological condition of seagrass beds in Linguisan and Tigbucay, Tungawan, Zamboanga Sibugay along Sibuguey Bay. Using the transect-quadrat method, two species were recorded: Enhalus acoroides and Halodule pinifolia, with E. acoroides dominant. Linguisan exhibited moderate seagrass cover (44.34%), whereas Tigbucay showed poor condition (20.2%). Degradation was associated with anthropogenic stressors, siltation, and a red tide outbreak in August 2024. Conservation measures, including the Bangaan Island Marine Sanctuary established in 2004 and community-based management programs, have provided localized protection, but environmental pressures persist. The findings highlight the vulnerability of Tungawan’s seagrass ecosystems and the need for strengthened conservation actions, including pollution control, habitat restoration, and expansion of marine protected areas. Future research should incorporate physicochemical parameters, conduct seasonal monitoring, and expand surveys to additional barangays to capture temporal and spatial variability, thereby supporting adaptive management and long-term sustainability of seagrass habitats.
Keywords: Species Composition, Enhalus acoroides, Halodule pinifolia, Seagrass Cover, Environmental Management, Marine Sanctuary.