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Distribution of Potential Spawning Habitat for Sturgeon in the Lower Missouri River, 2003-06

Open-File Report 2007-1192

In cooperation with the U.S. Army Corps of Engineers
By:
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Abstract

We surveyed the Lower Missouri River downstream from Gavins Point Dam near Yankton, South Dakota, to St. Louis, Missouri, during low water conditions in 2003-06 to identify and map coarse substrate deposits and bedrock exposures that might serve as spawning areas for sturgeon and other fishes. More than 330 deposits were identified, including tributary fans, bars, and habitat-enhancement projects. The location and extent of riverside bedrock exposures immediately adjacent to the channel also were mapped. Field surveys identified 48 bedrock exposures whereas the analysis of aerial orthophotographs identified an additional 65 exposures for a total of 113. Maps illustrating the distribution of deposits and their density were developed to aid researchers studying reproductive ecology of sturgeon and other lithophilic fishes.

Geospatial Extents

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Distribution of Potential Spawning Habitat for Sturgeon in the Lower Missouri River, 2003-06
Series title:
Open-File Report
Series number:
2007-1192
Edition:
-
Year Published:
2007
Language:
ENGLISH
Publisher:
Geological Survey (U.S.)
Contributing office(s):
U.S. Geological Survey
Description:
Report: v, 26 p.; Associated Data
Time Range Start:
2003-01-01
Time Range End:
2006-12-31
Additional Online Files(Y/N):
Y