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LTRMP Reports
Summary of Monitoring Findings for Fiscal Year 2004

Figures

1.	Long Term Resource Monitoring Program study areas.
2.	Mean discharge (m3sec-1 x 1,000) for the period of record (dashed line) at St. Louis, Missouri, and discharge for the 2004 water year (solid line).
3.	Water elevations (feet above mean sea level) for Pool 4, Upper Mississippi River System.
4.	Water elevations (feet above mean sea level) for Pool 8, Upper Mississippi River System.
5.	Water elevations (feet above mean sea level) for Pool 13, Upper Mississippi River System.
6.	Water elevations (feet above mean sea level) for Pool 26, Upper Mississippi River System.
7.	Water elevations (feet above mean sea level) for the Open River Reach, Upper Mississippi River System.
8.	Water elevations (feet above mean sea level) for La Grange Pool, Upper Mississippi River System.
9.	Land cover/land use for the 1890s, 1975, 1989, and 2000 for the lower impounded section, Pool 13, Upper Mississippi River System.
10.	Total suspended solids trends in the main channel of four Long Term Resource Monitoring Program study areas, Upper Mississippi River System. Values are mean concentrations (mg/L) in spring random sampling, 1994–2004.
11.	Water temperatures (oC) in the Mississippi River at (A) northern and (B) southern Long Term Resource Monitoring Program study areas in winter random sampling, Upper Mississippi River System, 1994–2004. Data are from all strata. No stratified random sampling data were collected in Pools 4, 8, and 13 in 2003.
12.	Percent dissolved oxygen (DO) saturation in the Mississippi River at (A) northern and (B) southern Long Term Resource Monitoring Program study areas in winter random sampling, Upper Mississippi River System, 1994–2004. Data are from all strata. No stratified random sampling data were collected in 2003.
13.	Chlorophyll-a concentrations (µg/L) in the Mississippi River at (A) northern and (B) southern Long Term Resource Monitoring Program study areas in winter random sampling, Upper Mississippi River System, 1994–2004. Data are from all strata. No stratified random sampling data were collected in 2003.
14.	Percent frequency of occurrence of submersed aquatic vegetation by study reach, weighted by areas of aquatic strata. Percent frequency of occurrence = number of occurrences/total number of rake samples.
15.	Percent frequency of occurrence of submersed aquatic vegetation for Pool 8, weighted by areas of aquatic strata.
16.	Mean mayfly (Ephemeridae) abundance in the Upper Mississippi River System from 1993 to 2004. The Open River Reach was dropped from the macroinvertebrate monitoring design in 2001. Pools 4 and 26 of the Upper Mississippi River and La Grange Pool of the Illinois River were not sampled in 2003.
17.	Mean fingernail clam (Sphaeriidae) abundance in the Upper Mississippi River System from 1993 to 2004. The Open River Reach was dropped from the macroinvertebrate monitoring design in 2001. Pools 4 and 26 of the Upper Mississippi River and La Grange Pool of the Illinois River were not sampled in 2003.
18.	Mean midge (Chironomidae) abundance in the Upper Mississippi River System from 1993 to 2004. Horizontal lines are grand means. The Open River Reach was dropped from the macroinvertebrate monitoring design in 2001. Pools 4 and 26 of the Upper Mississippi River and La Grange Pool of the Illinois River were not sampled in 2003.
19.	Mean fingernail clam (Sphaeriidae) abundance in Pool 8, Upper Mississippi River System, from 1993 to 2004.

Page Last Modified: April 17, 2018