A new citizen science app ‘Sea Watcher’ has been released to log sightings of marine megafauna in the European waters. URLhttps://www.ascobans.org/en/news/new-citizen-science-app-cetacean-sightingsTreatyAgreement on the Conservation of Small Cetaceans of the Baltic and North SeasTagsBiological diversityRegionEuropeDate of textFri, 11 December 2020