Fisheries conflicts is one issue that needs serious attention, because it could threaten the sustainability of marine resources.This study aims to determine the effectiveness of the causes of conflict and conflict resolution in the management of aquatic resources. Research using survey methods with quantitative approaches. Variables were divided into three groups: input variables (factors causing conflict); output (conflict resolution techniques) and outcome. The primary data source is 200 stakeholders of water resources. Statistical analysis using structural equation modeling. The results showed that the cause of the conflict is a competition factor in the utilization of marine resources, the presence of the opposite parties, the economic condition, the extent of the parties involved as well as the cultural background. Conflict resolution is the most effective use of facilitation techniques.