An Evaluation of Passive Acoustic Monitoring Using Satellite Communication Technology for Near Real-Time Detection of Tagged Animals in a Marine Setting
R.W. Bradford1, *, B.D. Bruce1, R.B. McAuley2, G. Robinson3
Identifiers and Pagination:Year: 2011
First Page: 10
Last Page: 20
Publisher Id: TOFISHSJ-4-10
Article History:Received Date: 15/03/2011
Revision Received Date: 06/04/2011
Acceptance Date: 07/04/2011
Electronic publication date: 06/5/2011
Collection year: 2011
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Passive acoustic monitoring has become a common tool for monitoring tagged marine animals. Recent improvements in acoustic technology have addressed some of the limitations of the system; specifically, the need to manually download data and the time delay between detection and data analysis. Coupling a robust passive acoustic receiver with a satellite communications modem has allowed for remote download of detection log files on a time scale of the user’s choice from real-time onwards. This coupling has also allowed the user to maintain a watch on the receiver’s status and thus affect timely repair to avoid loss of data. Using satellite communication is a cost effective means of monitoring acoustic receiver hardware in remote or difficult to access areas. Because this system requires a surface buoy for the satellite modem, mooring design is critical and will require careful consideration of the local environmental conditions. It is recommended that future deployments of this system include a sentinel tag to aid system diagnostics when tagged animals are absent.