CRE Brazil commented on Ireland’s Draft Guidance to Manage the Risk to Marine Mammals from Man-made Sound Sources in Irish Water (comments available here).
The final Irish guidelines are dated December 2013, and are available here. For seismic surveys, among other requirements, they impose a 1000-meter safety radius for marine mammals, and require ramp-up over 40 minutes, and “[o]nce the Ramp-Up Procedure commences, there is no requirement to halt or discontinue the procedure at night-time, nor if weather or visibility conditions deteriorate nor if marine mammals occur within a 1,000m radial distance of the sound source, i.e., within the Monitored Zone.” Pages 26-27.
