Earth Island Institute’s project Stop Fish Bombing USA has agreed to start up collaborative effort with Australia’s CSIRO.

This analysis aims to determine the effect of distance between a blast and the hydrophone on the received acoustic energy of the blast signal, purely as a result of the Lloyd’s mirror phenomenon (so excluding the drop in signal energy due to wavefront spreading).

Abstract Acoustic monitoring has proven increasingly important for detection and tracking of marine mammals. Most systems rely on towed hydrophones that can be cumbersome to deploy and pose a risk in terms of fouling propellers and failing in rough seas.