This policy brief is part of the Nereus Scientific & Technical Briefs on Marine Areas Beyond National Jurisdiction (ABNJ) series. This brief was prepared for the Third Preparatory Committee Meeting on Marine Biological Diversity in Areas Beyond National Jurisdiction (BBNJ) from March 27 to April 7 in New York.

The series includes policy briefs on 1) Area-based management tools, 2) Climate change in oceans beyond national jurisdictions, 3) Open data, 4) Tech transfer, 5) AIS data as a tool to monitor ABMTs and identify governance gaps in ABNJ fisheries, and 6) Impacts of fisheries on open-ocean ecosystems.