Integrating acoustic telemetry into mark-recapture models to improve the precision of apparent survival and abundance estimates

Dudgeon, Christine L., Pollock, Kenneth H., Braccini, J. Matias, Semmens, Jayson M. and Barnett, Adam 2015, Integrating acoustic telemetry into mark-recapture models to improve the precision of apparent survival and abundance estimates, Oecologia, vol. 178, no. 3, pp. 761-772, doi: 10.1007/s00442-015-3280-z.

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Title Integrating acoustic telemetry into mark-recapture models to improve the precision of apparent survival and abundance estimates
Author(s) Dudgeon, Christine L.
Pollock, Kenneth H.
Braccini, J. Matias
Semmens, Jayson M.
Barnett, Adam
Journal name Oecologia
Volume number 178
Issue number 3
Start page 761
End page 772
Total pages 12
Publisher Springer
Place of publication Berlin, Germany
Publication date 2015-07
ISSN 1432-1939
Keyword(s) Acoustics
Models, Biological
Models, Statistical
Monte Carlo Method
Population Density
Population estimation
Broadnose sevengill sharks
Science & Technology
Life Sciences & Biomedicine
Environmental Sciences & Ecology
Summary Capture-mark-recapture models are useful tools for estimating demographic parameters but often result in low precision when recapture rates are low. Low recapture rates are typical in many study systems including fishing-based studies. Incorporating auxiliary data into the models can improve precision and in some cases enable parameter estimation. Here, we present a novel application of acoustic telemetry for the estimation of apparent survival and abundance within capture-mark-recapture analysis using open population models. Our case study is based on simultaneously collecting longline fishing and acoustic telemetry data for a large mobile apex predator, the broadnose sevengill shark (Notorhynchus cepedianus), at a coastal site in Tasmania, Australia. Cormack-Jolly-Seber models showed that longline data alone had very low recapture rates while acoustic telemetry data for the same time period resulted in at least tenfold higher recapture rates. The apparent survival estimates were similar for the two datasets but the acoustic telemetry data showed much greater precision and enabled apparent survival parameter estimation for one dataset, which was inestimable using fishing data alone. Combined acoustic telemetry and longline data were incorporated into Jolly-Seber models using a Monte Carlo simulation approach. Abundance estimates were comparable to those with longline data only; however, the inclusion of acoustic telemetry data increased precision in the estimates. We conclude that acoustic telemetry is a useful tool for incorporating in capture-mark-recapture studies in the marine environment. Future studies should consider the application of acoustic telemetry within this framework when setting up the study design and sampling program.
Language eng
DOI 10.1007/s00442-015-3280-z
Field of Research 060205 Marine and Estuarine Ecology (incl Marine Ichthyology)
050202 Conservation and Biodiversity
0602 Ecology
Socio Economic Objective 960507 Ecosystem Assessment and Management of Marine Environments
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Springer
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