Fig. 2
From: A review of acoustic telemetry in Europe and the need for a regional aquatic telemetry network

Identification of six key sites as part of the European Telemetry Network’s research infrastructure. 1 represents the Strait of Gibraltar, 2 the English Channel, 3 the Danish Straits, 4 Malin Head, 5 the Bosphorus Strait, and 6 the Strait of Messina