Standard Presentation Australian Marine Sciences Association Annual Meeting 2023

Autonomous Platforms and Acoustic Characterisation: Challenges, Marine Mammals and Ambient Noise (#293)

Craig McPherson 1 , John Moloney 2 , Sam Ward 3
  1. JASCO Applied Sciences (Australia), Capalaba, Queensland, Australia
  2. JASCO Applied Sciences (Canada), Dartmouth, Nova Scotia, Canada
  3. Blue Ocean Marine Tech Systems, Bibra Lake, WA, Australia

Significant developments in the integration of acoustic monitoring technologies into underwater and surface autonomous platforms have occurred recently. The possibilities surrounding these platforms is extensive for the offshore resources sector and marine science, however significant technical challenges exist in terms of obtaining high quality and meaningful data, both autonomously and via telemetry.  Platforms can be deployed with a range of non-acoustic sensors in addition to single hydrophones or arrays; our experience has demonstrated that careful integration and configuration for each platform and sensor set along with appropriate use and piloting is key to obtain high quality data. Australian and international glider deployments have acoustically characterised ambient noise, species specific marine mammal presence and various anthropogenic sources, along with valuable oceanographic data. Significant advances have been made overseas with autonomous platforms for marine mammal and sound level monitoring for mitigation in naval exercise areas and associated with pile driving for US offshore wind projects where they are the technology of choice. This presentation will show case some of the platforms being used globally and data products which have been collected, highlight the key challenges which have been overcome, and outline what the possibilities and opportunities are for the future in Australia.