RT Journal Article T1 Five key opportunities to enhance the effectiveness of area-based marine conservation A1 Stanley, R.R.E. A1 Villasante Larramendi, Carlos Sebastián A1 Claudet, J. K1 Climate-change mitigation K1 Conservation biology AB Effective area-based conservation is central in global efforts to reverse marine biodiversity loss and safeguard ecosystem functioning. Here, we identify five key opportunities to maximize conservation potential as nations progress towards the Convention on Biological Diversity’s 2030 area-based management targets. These include enhancing accountability, elevating conservation in spatial planning, implementing adaptive management, coordinating conservation efforts across scales, and reconciling design with expected outcomes. Addressing these collectively will advance global marine conservation and maximize its contributions to biodiversity protection and human society. PB Nature Research YR 2025 FD 2025 LK https://hdl.handle.net/10347/45085 UL https://hdl.handle.net/10347/45085 LA eng NO Stanley, R.R.E., Abad-Uribarren, A., Belackova, A. et al. Five key opportunities to enhance the effectiveness of area-based marine conservation. npj Ocean Sustain 4, 67 (2025). https://doi.org/10.1038/s44183-025-00172-z NO AC was supported by the FCT-IP Programme Stimulus of Scientific Employment (CEECIND/00101/2021). AC also acknowledge funds through the FCT—Foundation for Science and Technology, I.P., under the project OKEANOS UIDB/05634/2023 and UIDP/05634/2023. BHC acknowledges the support of MARHAB (EU HORIZON, grant no. 101135307), MarPlus2024 (Algarve 2030, ALGARVE-FSE+-01177700) projects. BHC and AB also thanks the support the Portuguese national funds from FCT - Foundation for Science and Technology through projects UID/04326/2025, UID/PRR/04326/2025 and LA/P/0101/2020 (DOI:10.54499/LA/P/0101/2020) to CCMAR. DPT acknowledges support from the Jarislowsky Foundation and NSERC. R.R.E.S and E.M.R. were supported by the MCT program with DFO. SV gratefully acknowledges the financial support from EQUALSEA (Transformative adaptation towards ocean equity) project, under the European Horizon 2020 Program, ERC Consolidator (Grant Agreement # 101002784) funded by the European Research Council. TB acknowledges funding from the Biodiversa+ project RESOLVE and the European Union’s Horizon project ACTNOW (No. 101060072). DS Minerva RD 20 may 2026