Frequently Asked Questions Global Fishing Watch’s map displays fishing activity and other vessel data and tools to help you monitor global fishing patterns. Search our FAQ for information about how to use our map, data and portals. FAQs Categories Our Map and Data (27) Carrier Vessel Portal (11) Marine Manager (11) Map: Reference Layers (8) APIs (7) Vessel Tracking Technology (5) Map Basics (4) Map: Vessel Search and Groups (4) Map: Human Activity (4) Map: Registration Help (3) Map: Filters (1) Search For Search