This study investigated the relationship between social capital (trust attitude) and the degree of fishermen's participation in priority associations in villages near the MPA. To measure social capital, fishermen were asked to rate their level of trust in: fellow villagers in matters of lending and borrowing (Trust1), another member of a priority association in matters of lending and borrowing (Trust2), and barangay officials (Trust3). Correlation and path analyses were used to test the rela-tionships between trust attitudes, degree of participation, and associated exogenous variables. The fishermen actively participated in the activities of the association. The data analysis showed that trust attitude variables were significantly correlated with each other, but that the degree of participation was only significantly correlated with Trust1 and Trust2.Household size and years of residence were significantly associated with the degree of participation in fishermen's organizations.