European seas are subject to rapid development. With its Blue Growth strategy and Maritime Spatial Planning Directive, the European Union seeks to strengthen the economy, increase jobs and income, and secure long-term wealth by “unlocking the potential of the sea”. This triggers interest in interactive platforms, with complex features like to technology, governance, and financial, socioeconomic, and environmental aspects. The perception of maritime subjects and issues are different between groups of people, and depends on the information available to either party. The communication of scientific results is thus crucial to increase literacy and allow informed decision-making. This proposal will develop and evaluate how the participatory approaches contribute to the Maritime Spatial Planning (MSP) directive implementation. To identify realistic and sustainable solutions and designs for MSP, the TEAM4SEAS project will adopt a participatory approach involving all stakeholders representing companies, authorities, researchers, locals, fishermen, NGOs, etc. The main aim is to illustrate how a web-GIS system can be applied as a sound basis for practically incorporating an ecosystem approach within maritime spatial planning initiatives. Key-benefits include effective data management, increased spatial understanding and the definition of conflicts across the Romanian Black Sea region. On the other hand, the progress recently made in framing the MSP process together with the stakeholders’ involvement and the new advancement (supported by our team) related to MSP issues prepared the ground for the current project which is the first conceived as an innovative and operational study to support spatially-based analyses of the Romanian Black Sea region. Moreover, our interdisciplinary approach will be conducted and presented in cordial ways that will increase stakeholder understanding of information generated thus supporting marine governance.