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Rapid Assessment of Lake Sturgeon Spawning Stocks Using Instream Hydroacoustic Technology

Sponsor
Great Lakes Fishery Trust
Budget
$214,000
Duration
2003-2004

Dr. Nancy Auer with Sturgeon  Expand Element

 
Investigators

Nancy A. Auer, Assistant Professor, Biological Sciences, Michigan Technological University

Edward E. Baker, Fisheries Biologist, Michigan Department of Natural Resources, Marquette, MI.

Hydroacoustic Transducer

PREVIOUS PROJECT

Synopsis

Portable hydroacoustic technology has been developed to accurately determine size and direction of movement of migrating salmon and trout in the NW, but has been applied to few other species. This project is designed to test and refine the effectiveness of portable hydroacoustic sampling gear for monitoring lake sturgeon spawning in the Sturgeon River, Michigan. To verify data collected by hydroacoustics we are also tagging the spawning population on the spawning site each spring. Data collected by hydroacoustics include fish counts, estimates of individual size, spatial distribution and direction (upstream or downstream) movement.

 

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