1. |
Long Term Resource Monitoring Program study areas and
locations of field stations. |
2. |
Mean discharge (m3/sec x 1,000) at the St.
Louis gaging station, Upper Mississippi River System, 2002. |
3. |
Water elevations (feet above mean sea level) for Pool
4, January 2002January 2003, Upper Mississippi River System. |
4. |
Water elevations (feet above mean sea level) for Pool
8, January 2002January 2003, Upper Mississippi River System. |
5. |
Water elevations (feet above mean sea level) for Pool
13, January 2002January 2003, Upper Mississippi River System. |
6. |
Water elevations (feet above mean sea level) for Pool
26, January 2002January 2003, Upper Mississippi River System. |
7. |
Water elevations (feet above mean sea level) for the
Open River Reach, January 2002January 2003, Upper Mississippi
River System. |
8. |
Water elevations (feet above mean sea level) for La
Grange Pool, January 2002January 2003, Upper Mississippi River
System. |
9. |
Main channel total suspended solids trends in four of
the Long Term Resource Monitoring Program study areas, Upper Mississippi
River System. Values are mean concentrations (mg/L) during spring
random sampling, 19942002. |
10. |
Mississippi River water temperatures (oC)
in northern (A: Pools 4, 8, and 13) and southern (B:
Pool 26 and Open River) Long Term Resource Monitoring Program study
areas during winter random sampling, 19942002, Upper Mississippi
River System. Data are from all strata. |
11. |
Percent oxygen saturation in the Mississippi River at
northern (A: Pools 4, 8, and 13) and southern (B: Pool
26 and Open River) Long Term Resource Monitoring Program study areas
during winter random sampling, 1994–2002, Upper Mississippi
River System. Data are from all strata. |
12. |
Chlorophyll-a concentrations (�g/L) in the Mississippi
River at northern (A: Pools 4, 8, and 13) and southern (B:
Pool 26 and Open River) Long Term Resource Monitoring Program study
areas during winter random sampling, 19942002, Upper Mississippi
River System. Data are from all strata. |
13. |
Percent frequency of occurrence of submersed aquatic
vegetation in upper Pool 4, 19912001, Upper Mississippi River
System. |
14. |
Abundance (rake index) of submersed aquatic vegetation
in Pool 13, 1998–2001, Upper Mississippi River System. |
15. |
Canonical ordination of pools based on similarities
on vegetation species and abundance, 2002 (Pools 4, 5, 7, 8, 11, 12,
13, and 26 of the Mississippi River and La Grange Pool of the Illinois
River). |
16. |
Mean mayfly (Ephemeridae) abundance from 1992 to 2002,
Upper Mississippi River System. |
17. |
Mean fingernail clam (Sphaeriidae) abundance from 1992
to 2002, Upper Mississippi River System. |
18. |
Mean midge (Chironomidae) abundance from 1992 to 2002,
Upper Mississippi River System. |
19. |
Mayfly abundances in Lake Pepin, Pool 4 of the Upper
Mississippi River System (19922002). |
February 19, 2004