At Loggerheads with PAM
Duration: 6-13 November 2017
Gear: Sub-surface passive acoustic monitoring (PAM) moorings.
- To retrieve a previously deployed series of moorings comprising acoustic release systems (eight subsurface acoustic release moorings) and the acoustic recording devices attached to them (eight C-POD and three Loggerhead broadband units). Nine moorings were deployed originally however, one of these (Soay) has already been recovered.
- To deploy a series of moorings comprising acoustic release systems (six subsurface acoustic release moorings) and the acoustic recording devices attached to them. Each mooring will have a C-POD and a Loggerhead broadband unit attached This west coast background noise and marine mammal monitoring deployment is part of the COMPASS project. Tables 1 and 2 (below) give the locations for recovery of the moorings deployed in August 2017 during survey 1817H as well as the locations for the further deployments to be completed during survey 1917A.
Alba na Mara will sail on the morning of 6 November and make for the first mooring position. The ultimate order in which the moorings are deployed will be dictated by the weather forecast and the likely shelter that can be sought along the west coast. Accurate position records will be kept detailing where the moorings are eventually placed as this may differ slightly from the planned position.