Implanting Telemetry Tag in Pallid Sturgeon

Acoustic telemetry tags have to be fairly small to fit inside a five to fifteen pound pallid sturgeon.  The average tag is about the size of your ring finger (60-90 mm long and 16 mm diameter).  That means the battery that powers the acoustic tag is small, too.  A small battery means that the signal from the tag is relatively weak, or fairly quiet.