CTD measures ocean Conductivity, Temperature and Depth and is designed for vertical profiling of the water column for depths down to 2,000 metres.  The RV Solander has been fitted out with a new Livewire CTD and dedicated winch - Read the story

Image: The black line shows percentage surface light and at this point in time it is pretty much zero by 60 m, says Lead Scientist Dr Andrew Heyward.