2017
DOI: 10.1111/2041-210x.12726
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Evaluation of an acoustic telemetry transmitter designed to identify predation events

Abstract: Summary The field of acoustic telemetry has evolved rapidly and now permits the remote sensing of animal behaviour, movement, physiology and survival in environments, and species not previously possible. However, an inability to detect when a telemetered animal is consumed by a predator can complicate accurate interpretation of the telemetry data. In this paper, we describe the efforts taken to test the two generations of a novel prototype acoustic telemetry transmitter designed specifically to detect predat… Show more

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Cited by 86 publications
(82 citation statements)
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“…One such technology is predator tags which can signal consumption 386 events based on a change in identification code triggered by the change in pH associated with the 387 predator's gastrointestinal tract (Halfyard et al 2017). This technology could define predation events 388 more precisely than from movement pattern data as used in this study.…”
mentioning
confidence: 99%
“…One such technology is predator tags which can signal consumption 386 events based on a change in identification code triggered by the change in pH associated with the 387 predator's gastrointestinal tract (Halfyard et al 2017). This technology could define predation events 388 more precisely than from movement pattern data as used in this study.…”
mentioning
confidence: 99%
“…Acoustic telemetry offers autonomous, continuous monitoring (Heupel et al, ) and has the potential to significantly enhance our understanding of fish habitat use, activity patterns and resource partitioning (Hussey et al, ). Acoustic arrays have been used in many studies elucidating fish movements (Papastamatiou et al, ; Lea et al, ) and transmitters have been used more innovatively to measure trophic interactions (Halfyard et al, ). Issues remain however, in the significant cost and effort involved in deploying and maintaining acoustic arrays.…”
Section: Tagging and Telemetrymentioning
confidence: 99%
“…Two types of tags were used throughout the study: V5s (Vemco V5‐2H 180 kHz; length: 13 mm; mass in air: 0.65 g; estimated battery life: 128–140 days; nominal delay: 40–80 s) and predation tags (Vemco V5D‐1H 180 kHz; length: 13 mm; mass in air: 0.68 g; estimated battery life: 108 days; nominal delay: 40–80 s) which trigger a new identification code upon being consumed (Halfyard et al, ). In 2017, all tagged fish had V5 tags ( n = 40), while in 2018 fish were tagged with either a V5 or predation tag ( n = 15 for each tag type, for both hatchery‐ and naturally reared fish).…”
Section: Methodsmentioning
confidence: 99%