Upper Midwest Environmental Sciences Center
Paddlefish Study Project
|Paddlefish were captured with nets.|
|Transmitters were surgically implanted in the paddlefish.|
|The fish were released into 4 locations in the Mississippi River and tributaries.
The radio-receiver could detect the transmitters up to 1 mile. Scientists attempted to locate the paddlefish by boat 2-5 times a month to collect data about their movements and habitats. In the winter, a Hovercraft was used to track tagged paddlefish when the river was frozen.
|An airplane equipped with a 1/2-wave wire antenna was used by scientists to monitor general movements of radio-tagged paddlefish and locate missing fish. Aerial surveillance was extensively used by biologists from the La Crosse Fishery Resources Office, an important study cooperator, to track paddlefish movements in Lake Pepin (Navigation Pool 4, Upper Mississippi River).|