Instrument: HADAL-Lander
The HADAL-Lander is a free-falling baited lander composed of two major components; the scientific payload and delivery system.
Sampling and Analytical Methodology:
Animal samples were collected using a variety of baited traps. Sediment samples were collected using megacores on a free vehicle lander. Rock samples were collected using a van veen style grab on a free vehicle lander. Water samples were collected using a conventional CTD rosette.