The importance of calibration of depth sensors on ...

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•Field calibrations were conducted in the Toronto Harbour and the. Experimental Lakes area with a VR100 receiver and an omnidirectional hydrophone.
The importance of calibration of depth sensors on telemetry transmitters Veilleux, M.*1, T., Binder2, P.J., Blanchfield3, S.J., Cooke1, L., Cruz-Font4, N.W.R., Lapointe1, and D.M., Webber5 1Department

of Biology and Institute of Environmental Science, Carleton University, 2Great Lakes Fishery Commission, 3Experimental Lakes Area, 4Department

of Ecology and Evolutionary Biology, University of Toronto, 5VEMCO

INTRODUCTION

RESULTS

• Acoustic transmitters are widely used to gain information on fish habitat use. They can be used to study fish winter biology (1), migration (2), and behaviour (3). Some transmitters contain pressure sensors, which are factory-calibrated before being sold. Values obtained (i.e. slopes and intercepts) from the calibrations are used to convert sensor output to depth estimates. Unfortunately, these values have a certain range of error that may be accounted for by individual calibrations.

• Slopes from lab calibrations were significantly higher than the factory slope (p

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