The IMBeR Future Oceans 3 (FO3) meeting proudly presents the IMBeR Doctoral Forum, a platform for recent and soon-to-be PhD graduates in marine sciences to showcase their research and engage with leading scientists, policymakers, and peers. Aligned with FO3’s mission of reflecting on past achievements, strengthening interdisciplinary partnerships, and shaping ocean sustainability, this forum fosters global collaboration, with a strong focus on early-career researchers (ECRs) from low- to medium-income countries. Participants will present their thesis work through oral presentations, speed talks and posters, while also contributing as session rapporteurs, gaining hands-on mentorship from senior researchers. To support inclusivity, SCOR Travel Support grants will subsidize travel and registration costs for 6–8 eligible applicants. Inspired by successful initiatives like DISCO (Dissertations Symposium in Chemical Oceanography), this forum builds capacity, amplifies early-career voices, and integrates diverse perspectives into global ocean science. Join us in Shanghai or online to share your research, connect with international partners, and contribute to shaping the future of marine biosphere research and marine sustainability. Apply now to be part of this transformative scientific network!