RFMO Databases in the Public Domain
CCSBT - Public Domain Bycatch Data - Read explanatory text here
IATTC - Public domain data files
IATTC - Reports & notifications - seabirds/sharks&rays/sea turtles
IOTC - Public & other datasets
WCPFC - Public Domain Bycatch Data
Other Databases
Bycatch Meta-database - ICCAT
Bycatch Mitigation Hub - Clean Catch UK
Bycatch Reduction Database - Consortium for Wildlife Bycatch Reduction
Database of Measures on Conservation and Management of Sharks - FAO
Data Zone - BirdLife International
eBird - citizen & institutional data - bird distribution, abundance, habitat use, trends, images, audio
Find A Species - NOAA
FishBase - taxonomy, biology, trophic ecology, life history, uses, historical data
Global Fishing Watch - open source fishing vessel satellite data (including "apparent fishing effort")
Global Sea Turtle Data & Online Map - The State of the World’s Sea Turtles (SWOT)
North Pacific Pelagic Seabird Database - USGS Alaska Science Centre
Protected Species Bycatch Data New Zealand - Dragonfly
Seabird Data Portal - ACAP
Seabird Information Network - global list of databases
Seabird Maps and Information for Fisheries - American Bird Conservancy
Seabird Tracking Database - BirdLife International
SeaLifeBase - marine mammals, reptiles, seabirds, invertebrates
Sea Turtle Online Bibliography - Archie Carr Centre for Sea Turtle Research
Seaturtle.org - range of databases
Sharkipedia - open access database of shark and ray life history traits and abundance time-series
Shark Data Inventory Browser (draft) - ABNJ Tuna Project
Shark-References - identification, biology & distribution data
Species Catalogues (Sharks & rays, marine mammals) - FAO FishFinder