After halting the seismic survey in Algoa Bay on Thursday peace an quiet descended upon our marine neighbours for a day, only for permission to be given for the seimic survey to begin again lat on Friday afternoon. The call of the blue whale reaches levels up to 188 decibels. This extraordinarily loud whistle can be heard for hundreds of miles underwater. Theoretical calculations by Roger Payne and Douglas Webb (from the 1970's) predicted that the loudest whale sounds might be transmitted … [Read more...] about Whales receive ONE day of peace and quiet
polarcus nadia
Seismic Survey begins in Algoa Bay
The Motor Vessel Polarcus Nadia begins conducting a 3D Seismic Survey offshore Algoa Bay, Port Elizabeth today, 10 December 2013. The 3D survey Vessel will be towing a configuration of ten streamer cables each of 6 km length spaced 100 meters apart at an average depth of 10 m astern of the vessel. The streamers are not visible on the surface. Operational area stretches across the bay from inline with the from Gamtoos River Mouth to Bird Island. The vessel has restricted manoeuvrability … [Read more...] about Seismic Survey begins in Algoa Bay
