During 2015 three passive acoustic surveys using a towed hydrophone were carried out from May to October in a box off the northwest coast. The survey was carried out by the Sea Mammal Research Unit on board the Marine Institute state research vessel RV Celtic Voyager and Marine Conservation Research's RV Song of the Whale. Analysis of these data will be carried out by SMRU Ltd at their Hong Kong office.
In addition to PAM surveys, four Autonomous Multi-Channel Acoustic Recorders (AMAR) supplied by JASCO Applied Sciences in Canada were deployed in deep water, up to 2000m, in canyon systems and slopes along the shelf edge between May and October. AMARs can be deployed in virtually any water depth and record continuously for periods in excess of one year. They record a broad frequency range to detect beaked whales, dolphins, pilot whales and baleen whales as well as other acoustic sources from ambient ocean noise and seismic if occurring near the monitoring stations. Analysis of these data will be carried out by JASCO in Canada.
The IWDG deployed Deep CPODs on the four static acoustic moorings and will analyse the data following a similar project (Deep-PAM) carried out in 2011 (Wall et al. 2012).
In 2016 PAM and SAM were rolled out in a block off the southwest coast.