We have 4 free-fall lander systems on this cruise. Two of them are baited cameras and two of them are baited traps. All were designed and constructed by Oceanlab.
Hadal-Lander: This is a full ocean depth rated video camera. It free-fall to the seabed and takes 1 minute of footage every 5 minutes. It also has a couple of small amphipod traps and a 2litre water sampler. It records temperature and dept throughout the 12 hour deployment as well.
Abyssal-Lander: This is a 6000 metre rated baited still camera that takes an image every 1 minute and recorded temperature, pressure, salinity and current speed throughout. As it is only 6000 metre rated it will only be used on the ‘shallower’ sites.
Latis: Latis is a full ocean depth rated baited trap, design specifically for hadal snail-fish and small amphipods, although it did catch the supergiant amphipods as well. It is baited with two mackerels, one in each of the cages.
Fish-Trap: This is a 6000 metre rated baited fish trap. It is much like Latis, but bigger as it designed to catch larger abyssal fish on the plains surrounding the trench.