Field Notes
U.S. Fish & Wildlife Service
Field Notes Entry   
Unusually Large Lake Sturgeon Captured on Missouri River
Midwest Region, May 26, 2005
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On May 26, Fishery Biologist Cliff Wilson, Corey Lee, and Andy Plauck from the Columbia Fishery Resources Office captured a large lake sturgeon below Hartsburg, Mo. The sturgeon's fork length measured 1,348mm and it weighed an estimated 50-55 lbs. Based on data from other lake sturgeon projects, biologist predicted its age at 25-30 years. This lake sturgeon is the largest sturgeon captured by the Columbia FRO to date.

While recording routine data, the lake sturgeon was examined to determine if it was stocked or wild. No elastomer tags, pit tags, coded wire tags or remnant scars from tags were found therefore the sturgeon was assumed to be wild. Damage was found on the left pectoral spine, possibly indicating prior capture and data collection. After the examination it was pit tagged to allow future identification in the chance of recapture.

The information from this lake sturgeon in addition to scientific information and data from all fish species in the Missouri river assist the Columbia FRO in supporting the ?Aquatic Species Conservation and Management? goal of the Fisheries Program Vision for the Future?.

Contact Info: Larry Dean, 612-713-5312, Larry_Dean@fws.gov
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