Fig. 1
From: A review of acoustic telemetry in Europe and the need for a regional aquatic telemetry network
a Number of published acoustic telemetry studies carried out in Europe with marine or diadromous species, per year and taxa. Green bars represent studies on fish, orange bars studies on crustaceans, blue bars studies on cephalopods, and red bars studies on marine mammals. b Number of published acoustic telemetry studies carried out in Europe with marine or diadromous species, per study objective. Blue bars represent behavioural studies, red bars studies on management-related issues, orange bars studies on tagging methods and effects, green bars studies on technology and data analysis development. Based on search on Web of Knowledge using the keywords acoustic telemetry or biotelemetry