Primary Productivity of Coastal Watersin Malita, Davao Occidental

Abstract

This study evaluates the primary productivity of coastal waters in Barangay Culaman, Malita, Davao Occidental, by analyzing physicochemical parameters and chlorophyll a concentration. The choice of these parameters was based on their significance in understanding the health and productivity of marine ecosystems. Surface and sub-surface water samples were collected from ten sampling points, and parameters such as temperature, dissolved oxygen, salinity, total dissolved solids, and pH were measured on-site. Chlorophyll concentrations were determined using spectrophotometric analysis. Results indicate stable and favorable conditions for marine life, with minimal stratification and uniform nutrient distribution. However, the potential impacts of human activities highlight the need for sustainable management practices to mitigate eutrophication and harmful algal blooms. The findings provide a scientific basis for policy recommendations and community actions aimed at preserving the ecological integrity of Malita's coastal waters.