This study analyzed the water quality dynamics in the coastal zone of Boracay Island in relation to anthropogenic activities and natural factors. Seven sites were studied where possible sources of nutrient inputs on spatial and temporal basis were identi ed. Water samples were evaluated using the Philippine Department of Environment and Natural Resources (DENR) regulatory standards. The coastal water quality was generally in uenced by nutrient loading coming from untreated and partially treated waste water from households and commercial establishments not connected to the sewerage system of the island. Natural cleansing mechanisms attributed to activities of autotrophs in the coastal water and biogeochemical processes of mangrove swamps are operational. Coastal waters adjacent to mangrove swamp impoverished of mangrove trees showed poor water quality, while coastal water adjacent to mangrove swamp with relatively good mangrove cover exhibited good water quality. The months of February to June with highest number of tourist arrival proved to be the critical periods. Lugotan Cove close to Mangrove Swamp 6 impoverished of trees was the critical area in the Island. Puka Beach close to Mangrove Swamp 1 with good mangrove cover showed the cleanest water quality, followed by Long Beach with most of the commercial establishments connected to the sewerage system.
Keywords: water quality, Boracay Island, nutrient inputs
Socio-Economic Study of Two Major Metro Manila EsterosPhytoplankton Abundance and Distribution in Selected Sites of Boracay Island, Malay, Aklan, Central Philippines Water Quality and Nutrient Loading in the Coastal Waters of Boracay Island, Malay, Aklan, Central Philippines Valuing Public Preferences for Ludong (Cestraeus plicatilis Valenciennes 1836) Conservation Program in Cagayan River Systems, Philippines Damage Assessment and Recovery Monitoring of the Mangrove Forests in Calauit Island Affected by Typhoon Yolanda (Haiyan) Exploring Utility of Formal Concept Analysis Approach to Coral Reef Assessment Ecological Integrity of Pasonanca Natural Park: The Sustainability of Water Supply Under a Policy of Protected Areas
Comparison of Indigenous and Scientific Knowledge on Soil Classification among Farmers in Imugan, Nueva Vizcaya, PhilippinesWho Wants to Adopt Sustainable Charcoal Production?: Determinants and Willingness to Adopt Sustainable Practices Among Small-scale Producers in Quezon Province, Philippines Environmental Sustainability Analysis of Charcoal Production in Mulanay, Quezon, Philippines Organizational Risk Mitigation and Performance Estimation of Carbon Losses in Ex-mega Rice Project, Indonesia based on SAR Earth Observation REVIEW ARTICLE: PRESERVATION TECHNIQUES OF FRUIT JUICES GERMPLASM SCORING AND MAPPING OF PLUS TREES IN MT. BANAHAW DE LUCBAN FOR IEC MATERIAL DEVELOPMENT AND PRODUCTION OF QUALITY PLANTING STOCKS The Characteristics and Applications in Environment of Biochar Natural Volcanic Tuff as a Soil Mulching, Effect on Plant Growth and Soil Chemistry under Water Stress