In October last year I made my first audio recording of the Firth of Forth from a diving rib that was around 500-600 metres away from the main deep shipping channel. My hydrophone was at approximately 20 metres in depth and highlights that the attenuation of sound through water is extremely efficient. As I was making the recording, a large tanker appeared further up the estuary a couple of miles away, the noise of its engines slowly increasing until it was quite overpoweringly noisy.
Sunday saw my first cold-water dive to the maximum depth I am currently qualified to do (20m). The visibility was quite poor at 2-3 metres and any unnecessary movement with the legs, kicked up silt that obscured the person next to you. I can honestly say that I was a little nervous, and occupied my mind with the intricacies of varied life that was abundant on the reef at this depth. The dive site was Loch Creran, a specific area of conservation (SAC) between Oban and Appin on the West coast of Scotland.
The large deepsea squid shown above triggered its own photograph on a special undersea camera used by Antartic Division scientists during their last expedition to Heard Island, and mimics the movements of the true Giant Squid which was photographed for the first time recently by Japanese scientists. Hobart-based Liz Turner, Curator of Invertebrate Zoology at the Tasmanian Museum in Hobart, Rosny Collections and Research Facility, says “For the world to be able to see the photographs of a live Giant Squid is a huge leap in the quest for knowledge about these gargantuans of the oceans”.
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