Detection range and efficiency of acoustic telemetry receivers in Clear Lake, Lake County, California

Data on the detection range and efficiency of VR2W-69 kHz acoustic receivers (Innovasea Marine Systems Canada Inc., Bedford, Nova Scotia, Canada; https://www.vemco.com/) were collected to guide the development of telemetry studies of the Clear Lake Hitch (Lavinia exilicauda chi), an imperiled fish species endemic to Clear Lake, Lake County, California. The study took place June 21, 2021 through July 01, 2021. Receivers we deployed at distances of 0m, 25m, 50m, 100m, 200m, and 300m from a sentinel test tag. The test tag was deployed for 20 minutes and emitted signals approximately 6-7 times per minute. Data recorded included the total number of signals emitted by the test tag and the number of those signals that were detected by each [...]