Optimising the design of large-scale acoustic telemetry curtains

Steckenreuter, Andre, Hoenner, Xavier, Huveneers, Charlie, Simpfendorfer, Colin, Buscot, Marie J., Tattersall, Katherine, Babcock, Russel, Heupel, Michelle, Meekan, Mark, van den Broek, James, McDowall, Phillip, Peddemors, Victor, and Harcourt, Robert (2017) Optimising the design of large-scale acoustic telemetry curtains. Marine and Freshwater Research, 68 (8). pp. 1403-1413.

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Abstract

Broad-scale acoustic telemetry networks are being established worldwide. The 10-year anniversary of the Integrated Marine Observing System's Animal Tracking Facility provided the opportunity to assess the efficiency of one of the first national-scale acoustic telemetry networks. Acoustic networks are comprised of acoustic receiver arrays that detect high-frequency transmitters attached to animals that pass within detection range. Herein we assessed the efficiency of eight curtains to detect passing animals by calculating the standardised mean number of detections and transmitters detected at each station. The aim was to determine how many receivers could be decommissioned from each curtain while maintaining its integrity (i.e. detection of all species passing the array). Pivotal locations were defined as the furthest station at which all species would still be detected and where at least 75% of the detections and transmitters would still be detected. By applying these criteria, we were able to improve the cost-effectiveness of our network significantly, reducing the number of stations from 132 to 85 (64% of the original network), yet still retaining 84% of total detections, 86% of transmitters and 100% of detected species. The present study provides a useful framework for refining acoustic telemetry networks.

Item ID: 50379
Item Type: Article (Research - C1)
ISSN: 1448-6059
Keywords: acoustic network, acoustic tracking, detection efficiency, Integrated Marine Observing System (IMOS), animal tracking, VEMCO
Date Deposited: 20 Sep 2017 08:23
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070402 Aquatic Ecosystem Studies and Stock Assessment @ 40%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 60%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830204 Wild Caught Fin Fish (excl. Tuna) @ 50%
96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960808 Marine Flora, Fauna and Biodiversity @ 50%
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