Use acoustic devices at cooling water intake structures
Overall effectiveness category No evidence found (no assessment)
Number of studies: 0
Background information and definitions
Marine or freshwater mammals may enter or be drawn into the cooling water intake structures of power plants, which may result in injury or death. Acoustic devices may be used to deter mammals from approaching intake tunnels. However, it should be noted that high amplitude acoustic devices may cause hearing damage to target and non-target mammal species, and may disrupt biologically important behaviour or exclude mammals from important habitats (Johnston 2002, Morton & Symonds 2002, Olesiuk et al. 2002, Götz & Janik 2013).
For a similar intervention, see Use acoustic devices at renewable energy sites.
Götz T. & Janik V.M. (2013) Acoustic deterrent devices to prevent pinniped depredation: efficiency, conservation concerns and possible solutions. Marine Ecology Progress Series, 492, 285–302.
Johnston D.W. (2002) The effect of acoustic harassment devices on harbour porpoises (Phocoena phocoena) in the Bay of Fundy, Canada. Biological Conservation, 108, 113–118.
Morton A.B. & Symonds H.K. (2002) Displacement of Orcinus orca (L.) by high amplitude sound in British Columbia, Canada. ICES Journal of Marine Science, 59, 71–80.
Olesiuk P.F., Nichol L.M., Sowden M.J. & Ford J.K.B. (2002) Effect of the sound generated by an acoustic harassment device on the relative abundance and distribution of harbor porpoises (Phocoena phocoena) in Retreat Passage, British Columbia. Marine Mammal Science, 18, 843–862.