The regionalization process promoted by the EU's Common Fisheries Policy (CFP) enabled the formulation of a new governance arrangement at the sub-national regional level of the Northern Adriatic Sea (NAS). Given the potential for dominating narratives to foster simplified solutions for fishery management, the article sought to analyze discourse formations across Italian Regional Fishery Departments (RFDs) of the NAS. A discourse analysis based on the Discursive Agency Approach (DAA) delineated the discursive strategies, while a weak vs strong sustainability narrative was adopted to broadly group stakeholders into discourse coalitions. The results showed the presence of a dominating narrative in RFD settings, prioritizing the economic growth of the fishery sector - particularly the trawling industry - over current environmental concerns. The study points to a possibly increasing dominance of weak sustainability narratives in the Italian NAS and invites for stakeholders' representation to significantly broaden and diversify, enabling the development of multifaceted solutions to the NAS crisis.