Compatibility in acoustic telemetry

Reubens, Jan; Aarestrup, Kim; Meyer, Carl G.; Moore, A. M.; Økland, Finn; Afonso, Pedro

doi:10.1186/s40317-021-00253-z

Cited by 25 publications

(15 citation statements)

References 19 publications

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“…We consider the specification of an actual acoustic tag manufactured by Thelma-Biotel Inc., Trondheim, Norway [10]. These acoustic tags are used globally in applications to monitor fauna in marine environments and to track migration patterns [35], [36]. The mobile node is an acoustic tag (model: ID-HP16) emitting 69kHz single-tone signals of intensity 158dB re 1µPa @ 1m.…”

Section: F Numerical Investigation Setupmentioning

confidence: 99%

Design of an Optimal Testbed for Tracking of Tagged Marine Megafauna

Alexandri,

Diamant

2022

Preprint

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Underwater acoustic technologies are a key component for exploring the behavior of marine megafauna such as sea turtles, sharks, and seals. The animals are marked with acoustic devices (tags) that periodically emit signals encoding the device's ID along with sensor data such as depth, temperature, or the dominant acceleration axis -data that is collected by a network of deployed receivers. In this work, we aim to optimize the locations of receivers for best tracking of acoustically tagged marine megafauna. The outcomes of such tracking allows the evaluation of the animals' motion patterns, their hours of activity, and their social interactions. In particular, we focus on how to determine the receivers' deployment positions to maximize the coverage area in which the tagged animals can be tracked. For example, an overly-condensed deployment may not allow accurate tracking, whereas a sparse one, may lead to a small coverage area due to too few detections. We formalize the question of where to best deploy the receivers as a non-convex constraint optimization problem that takes into account the local environment and the specifications of the tags, and offer a sub-optimal, low-complexity solution that can be applied to large testbeds. Numerical investigation for three stimulated sea environments shows that our proposed method is able to increase the localization coverage area by 30%, and results from a test case experiment demonstrate similar performance in a real sea environment. We share the implementation of our work to help researchers set up their own acoustic observatory.

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Section: F Numerical Investigation Setupmentioning

confidence: 99%

Design of an Optimal Testbed for Tracking of Tagged Marine Megafauna

Alexandri,

Diamant

2022

Preprint

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“…We consider the specification of an actual acoustic tag manufactured by Thelma-Biotel Inc., Trondheim, Norway (Alexandri et al, 2018). These acoustic tags are used globally in applications to monitor fauna in marine environments and to track migration patterns (Lennox et al, 2021;Reubens et al, 2021). The mobile node is an acoustic tag (model: ID-HP16) emitting 69kHz single-tone signals of intensity 158dB re 1mPa @ 1m.…”

Section: Numerical Investigation Setupmentioning

confidence: 99%

Design of an Optimal Testbed for Acoustic Tags: Test Case for Marine Megafauna

Alexandri

Diamant

2022

Front. Mar. Sci.

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Underwater acoustic technologies are a key component for exploring the behavior of marine fauna such as sea turtles, sharks, and seals. The animals are marked with acoustic devices (tags) that periodically emit signals encoding the device’s ID along with sensor data such as depth, temperature, or the dominant acceleration axis - data that is collected by a network of deployed receivers. In this work, we aim to optimize the locations of receivers for best tracking of acoustically tagged marine fauna, and provide a test case with tags suitable for megafauna tracking. The outcomes of such tracking allows the evaluation of the animals’ motion patterns, their hours of activity, and their social interactions. In particular, we focus on how to determine the receivers’ deployment positions to maximize the coverage area in which the tagged animals can be tracked. For example, an overly-condensed deployment may not allow accurate tracking, whereas a sparse one, may lead to a small coverage area due to too few detections. We formalize the question of where to best deploy the receivers as a non-convex constraint optimization problem that takes into account the local environment and the specifications of the tags, and offer a sub-optimal, low-complexity solution that can be applied to large testbeds. Numerical investigation for three stimulated sea environments shows that our proposed method is able to increase the localization coverage area by 30%, and results from a test case experiment demonstrate similar performance in a real sea environment. We share the implementation of our work to help researchers set up their own acoustic observatory.

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“…With data-sharing within networks, acoustic studies can potentially span coastal regions and even ocean basins and inform migration paths and long-distance movements of marine species (Guttridge et al, 2017;Young et al, 2020). Networks, such as the OTN, are dedicating resources toward establishing standardization of metadata and analysis protocols and are working with manufacturers to resolve differences between transmitter models and encourage open decoding protocols (Whoriskey, 2015;Bangley et al, 2020;Reubens et al, 2021). New technologies are being developed to aid in data retrieval, such as autonomous underwater vehicles (AUVs) that can retrieve data from receivers, as well as systems that can transmit detection data to the surface with a modem and hydrophone.…”

Section: Future Directionsmentioning

confidence: 99%

“…While acoustic transmitters themselves are low-cost compared to other biotelemetry devices, installing and maintaining an array of receivers and facilitating data retrieval can be quite costly (Whoriskey, 2015;Zeh et al, 2015). However, acoustic receivers are not species specific (Lea et al, 2016;Matley et al, 2019), which allows multiple taxa to be tracked simultaneously within the same receiver array, enabling cost-sharing among projects to reduce the financial burden to any one study (Selby et al, 2019;Bangley et al, 2020;Reubens et al, 2021). Tens of thousands of passive receivers exist throughout the world and as more are deployed, opportunities for collaborations and data sharing emerge (Hussey et al, 2015;Whoriskey, 2015;Whoriskey and Hindell, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Organizations such as the Ocean Tracking Network (OTN) and FACT Network create regional and global networks that facilitate data sharing among members and encourage standardized data collection and analysis protocols. While challenges still exist in creating compatibility between transmitters and receivers of different manufacturers, these networks are working toward increasing the spatial scale of studies as well as the overall capacity of acoustic telemetry to address questions related to the ecology of marine species, such as marine turtles (Whoriskey, 2015;Bangley et al, 2020;Young et al, 2020;Matley et al, 2021b;Reubens et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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A Systematic Review of Acoustic Telemetry as a Tool to Gain Insights Into Marine Turtle Ecology and Aid Their Conservation

Hardin

Fuentes

2021

Front. Mar. Sci.

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While widely applied in fisheries science, acoustic telemetry remains an underutilized method in the field of marine turtle biotelemetry. However, with the ability to provide fine-scale spatial data (tens to hundreds of meters, depending on array setup and receiver range) at a low cost, acoustic telemetry presents an important tool for obtaining key information on marine turtle ecology. We present a comprehensive and systematic review acknowledging how acoustic telemetry has been used to advance the field of marine turtle ecology and conservation. We identify the extent of current studies and discuss common and novel research approaches while addressing specific limitations of acoustic telemetry. Forty-eight studies were reviewed, representing six of the seven marine turtle species and all life stages, with most individuals identified as juveniles (45%) and hatchlings (36%). Most studies (83%) focused on the spatial distribution of marine turtles, including estimating home ranges, investigating drivers of habitat use, and identifying horizontal movement patterns and vertical space use. Additionally, acoustic telemetry has been used to study hatchling dispersal and marine turtle exposure and response to threats, as well as to monitor physiological parameters. We identified that acoustic telemetry directly or indirectly informs 60% of the top questions and research priorities related to marine turtles identified by experts in the field. With an increase in acoustic telemetry receiver networks and collaborations across taxa, the applicability of acoustic telemetry is growing, not only for marine turtles but for a wide array of marine species. Although there are limitations that need to be considered at a site/project-level, acoustic telemetry is an important, low-cost technology able to address key questions related to marine turtle ecology that can aid in their conservation, and therefore should be considered by researchers as they develop their projects.

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Compatibility in acoustic telemetry

Cited by 25 publications

References 19 publications

Design of an Optimal Testbed for Tracking of Tagged Marine Megafauna

Design of an Optimal Testbed for Tracking of Tagged Marine Megafauna

Design of an Optimal Testbed for Acoustic Tags: Test Case for Marine Megafauna

A Systematic Review of Acoustic Telemetry as a Tool to Gain Insights Into Marine Turtle Ecology and Aid Their Conservation

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