Data mobilization, which involves making data available for appropriate re-use, continues to be a significant obstacle in the effective management of salmon populations. The process of data mobilization enables data sharing, discovery, and reutilization, leading to increased citations, the development of synthesis data products, meta-analyses, and the creation of robust management decision-support tools. The International Year of the Salmon (IYS) High Seas Expeditions conducted in 2019, 2020, and 2022 presented both a challenge and an opportunity for data mobilization efforts, given the extensive scale, volume, diversity of data, and involvement of numerous nations. Considering the global nature of this project, we undertook the mobilization of salmon ocean ecology data in accordance with the United Nations' Global Ocean Observing System and the Decade of Ocean Science for Sustainable Development. Within this framework, we catalogued datasets using metadata records, assigned digital object identifiers, and made them accessible through a web-based data catalogue available at https://iys.hakai.org. Whenever feasible, we adopted existing community-developed and international data and metadata standards, and we ensured that the data were published in globally accessible open-access repositories. The implementation of both sociocultural and technical solutions has significantly enhanced the impact of the IYS. Furthermore, it has established a foundation and a clear path forward for institutions, commissions, foundations, or projects involved in salmon and oceanographic data production and interested in contributing to international data-intensive salmon and oceanographic sciences.