The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream
Abstract Background Fixed radio telemetry stations are used to study the movement ecology of fishes in streams and rivers. A common assumption of such studies is that detection efficiency remains constant through space and time. The objective of this study was to understand how site characteristics...
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doaj-7bbd96d13c2c4797b3eb18cba028ec732020-12-27T12:06:22ZengBMCAnimal Biotelemetry2050-33852019-12-01711710.1186/s40317-019-0187-1The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small streamBrittany G. Sullivan0Daniel P. Struthers1Mark K. Taylor2Chris Carli3Steven J. Cooke4Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton UniversityParks Canada Agency, Banff National ParkParks Canada Agency, Banff National ParkDepartment of Fisheries and Oceans Canada, Stock AssessmentFish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental and Interdisciplinary Science, Carleton UniversityAbstract Background Fixed radio telemetry stations are used to study the movement ecology of fishes in streams and rivers. A common assumption of such studies is that detection efficiency remains constant through space and time. The objective of this study was to understand how site characteristics and tag distance can influence the detection efficiency of a fixed receiver when used for fisheries research in a small stream. Field tests included a fixed receiver station on Forty Mile Creek, in Banff National Park, AB, Canada that recorded signals from radio tags over specified distances (i.e., 0 m, 27 m, 53 m, 80 m) within the expected detection range from July to October, 2016. Model selection was used to test which parameters may influence detection efficiency. Results The fixed receiver was able to record an average of 89% of transmissions over the study period. Detection efficiency was greater or equal to 0.97 at tag distances of ≤ 53 m. Detection efficiency significantly declined by 36% to a rate of 0.62 for tags placed 80 m from the fixed receiver. Water temperature and water depth also reduced detection efficiency, but only at the critical threshold of 80 m from the tag. Interestingly, turbidity had no influence on detection efficiency in this study. Conclusions This study provided insights into the reliability of fixed receiver stations as a passive tracking technique in small streams. The abrupt change in detection efficiency observed in this study presumably occurs in other systems. Identifying critical detection distance thresholds would appear to be a useful strategy for avoiding false-negative results. It is recommended that researchers who conduct radio tracking studies with fixed arrays should consider the deployment of sentinel tags over the study to understand the system performance.https://doi.org/10.1186/s40317-019-0187-1Tag validationRange testingTransmitterRadio telemetrySentinel tagFish |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Brittany G. Sullivan Daniel P. Struthers Mark K. Taylor Chris Carli Steven J. Cooke |
spellingShingle |
Brittany G. Sullivan Daniel P. Struthers Mark K. Taylor Chris Carli Steven J. Cooke The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream Animal Biotelemetry Tag validation Range testing Transmitter Radio telemetry Sentinel tag Fish |
author_facet |
Brittany G. Sullivan Daniel P. Struthers Mark K. Taylor Chris Carli Steven J. Cooke |
author_sort |
Brittany G. Sullivan |
title |
The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream |
title_short |
The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream |
title_full |
The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream |
title_fullStr |
The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream |
title_full_unstemmed |
The critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream |
title_sort |
critical detection distance for passively tracking tagged fish using a fixed radio telemetry station in a small stream |
publisher |
BMC |
series |
Animal Biotelemetry |
issn |
2050-3385 |
publishDate |
2019-12-01 |
description |
Abstract Background Fixed radio telemetry stations are used to study the movement ecology of fishes in streams and rivers. A common assumption of such studies is that detection efficiency remains constant through space and time. The objective of this study was to understand how site characteristics and tag distance can influence the detection efficiency of a fixed receiver when used for fisheries research in a small stream. Field tests included a fixed receiver station on Forty Mile Creek, in Banff National Park, AB, Canada that recorded signals from radio tags over specified distances (i.e., 0 m, 27 m, 53 m, 80 m) within the expected detection range from July to October, 2016. Model selection was used to test which parameters may influence detection efficiency. Results The fixed receiver was able to record an average of 89% of transmissions over the study period. Detection efficiency was greater or equal to 0.97 at tag distances of ≤ 53 m. Detection efficiency significantly declined by 36% to a rate of 0.62 for tags placed 80 m from the fixed receiver. Water temperature and water depth also reduced detection efficiency, but only at the critical threshold of 80 m from the tag. Interestingly, turbidity had no influence on detection efficiency in this study. Conclusions This study provided insights into the reliability of fixed receiver stations as a passive tracking technique in small streams. The abrupt change in detection efficiency observed in this study presumably occurs in other systems. Identifying critical detection distance thresholds would appear to be a useful strategy for avoiding false-negative results. It is recommended that researchers who conduct radio tracking studies with fixed arrays should consider the deployment of sentinel tags over the study to understand the system performance. |
topic |
Tag validation Range testing Transmitter Radio telemetry Sentinel tag Fish |
url |
https://doi.org/10.1186/s40317-019-0187-1 |
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