
Offshore Bat Activity Intelligence via Fixed Marine Listening Networks
Marine bat monitoring presents unique methodological challenges across European waters, where regulatory frameworks remain fragmented. Our approach focuses on seasonal migration periods—spring and autumn transitions between breeding grounds and wintering sites—when these mammals utilise offshore environments.
Fixed listening networks deliver comprehensive spatial coveage
We deploy marine-grade ultrasonic detectors across strategic points using research vessels and proprietary modified navigation buoys. Vessel operations employ anchored positioning or low-speed transect navigation during minimal wind conditions, optimising echolocation signal quality by reducing acoustic interference


Proprietary marine buoy modifications create permanent listening stations
Our custom-engineered navigation buoys house detectors and microphones within sealed enclosures, providing weather-resistant operation across challenging maritime environments. This fixed infrastructure captures continuous activity patterns beyond vessel operational limitations.
Automated signal analysis transforms echolocation data into activity intelligence
Detection recordings enable species classification and signal duration analysis, generating normalised activity indices expressed as hourly bat contact rates. These indices reveal seasonal and spatial activity variations, creating comprehensive understanding of offshore bat utilisation patterns.