The species composition, occurrence and temporal stability of submerged aquatic macrophyte patches along the main channel border of pool 5A, Upper Mississippi River

Hydrobiologia ◽  
1986 ◽  
Vol 136 (1) ◽  
pp. 77-83 ◽  
Author(s):  
David R. McConville ◽  
Dennis D. Anderson ◽  
Rory N. Vos� ◽  
Daniel B. Wilcox
Keyword(s):  
Species Composition ◽  
Mississippi River ◽  
Aquatic Macrophyte ◽  
Temporal Stability ◽  
Main Channel ◽  
Upper Mississippi River

Differences between main-channel and off-channel food webs in the upper Mississippi River revealed by fatty acid profiles of consumers

Inland Waters ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 101-106 ◽  
Author(s):  
James Larson ◽  
Michelle Bartsch ◽  
Steve Gutreuter ◽  
Brent Knights ◽  
Lynn Bartsch ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Food Webs ◽  
Mississippi River ◽  
Main Channel ◽  
Upper Mississippi River ◽  
Fatty Acid Profiles

Relationship among Fish Assemblages and Main-Channel-Border Physical Habitats in the Unimpounded Upper Mississippi River

2004 ◽  
Vol 133 (2) ◽  
pp. 371-384 ◽  
Author(s):  
Valerie A. Barko ◽  
David P. Herzog ◽  
Robert A. Hrabik ◽  
John S. Scheibe
Keyword(s):  
Mississippi River ◽  
Fish Assemblages ◽  
Main Channel ◽  
Upper Mississippi River

Ecosystem metabolism and nutrient dynamics in the main channel and backwaters of the Upper Mississippi River

2015 ◽  
Vol 60 (9) ◽  
pp. 1863-1879 ◽  
Author(s):  
Jeffrey N. Houser ◽  
Lynn A. Bartsch ◽  
William B. Richardson ◽  
James T. Rogala ◽  
John F. Sullivan
Keyword(s):  
Mississippi River ◽  
Nutrient Dynamics ◽  
Main Channel ◽  
Ecosystem Metabolism ◽  
Upper Mississippi River

Patterns in abundance of fishes in main channels of the upper Mississippi River system

2001 ◽  
Vol 58 (5) ◽  
pp. 933-942 ◽  
Author(s):  
John M Dettmers ◽  
Steve Gutreuter ◽  
David H Wahl ◽  
Daniel A Soluk
Keyword(s):  
Mississippi River ◽  
Temporal Patterns ◽  
River System ◽  
Main Channel ◽  
Illinois River ◽  
Total Biomass ◽  
Upper Mississippi River ◽  
Spatial And Temporal Patterns ◽  
Key Species ◽  
Upper Mississippi River System

Abundance of fishes of the main channels of the upper Mississippi River system and of other large North American rivers is largely unknown because historic sampling methods have been inadequate. We used a bottom trawl to estimate spatial and temporal patterns in abundance in the navigation channels of Pool 26 of the Mississippi River and the lower Illinois River. Total biomass density averaged 21 and 29 kg·ha–1 in the navigation channels of Pool 26 and the lower Illinois River, respectively. We identified spatial and temporal patterns in catches of key species using a generalized linear model based on the negative binomial distribution. Some species, including shovelnose sturgeon (Scaphirhynchus platorynchus), are persistent residents of the main channel. Multiple-season residents, including freshwater drum (Aplodinotus grunniens), rely heavily on the main channel during most of the year but leave it briefly, for example to seek thermal refugia in backwaters during winters. We suggest revision of the prevailing notion that main channels of large temperate rivers serve mainly as corridors for movement among other habitat types.

scholarly journals A decade of monitoring on Pool 26 of the upper Mississippi River System

2013 ◽  
Vol 39 (1-6) ◽  
pp. 323-420 ◽  
Author(s):  
John H. Chick ◽  
Lori A. Soeken-Gittinger ◽  
Eric N. Ratcliff ◽  
Eric J. Gittinger ◽  
Benjamin J. Lubinski ◽  
...  
Keyword(s):  
Water Quality ◽  
Total Nitrogen ◽  
Mississippi River ◽  
River System ◽  
Main Channel ◽  
Upper Mississippi River ◽  
River Reach ◽  
Monitoring Protocols ◽  
Upper Mississippi River System

We present information gleaned from 10 years of data collected by the water quality component of the Upper Mississippi River Restoration Environmental Management Program’s Long Term Resource Monitoring Program (LTRMP) from Pool 26 of the Upper Mississippi River System (UMRS). The Pool 26 reach of the UMRS includes the confluence with the Illinois River, and the confluence with the Missouri River just downstream of Mel Price Locks and Dam. The surrounding communities in both Illinois and Missouri benefit greatly from the natural resources provided by these rivers. We estimate that annual expenditures are 55 million for fishing and hunting, respectively, in the region surrounding Pool 26 based on license sales and state expenditure data from the U.S. Fish and Wildlife Service. Additionally, there is a commercial fishery active in Pool 26, recreational boating, and the UMRS provides drinking water for many municipalities in this region. Finally, the Upper Mississippi River System is a major transportation system, and Pool 26 receives the greatest amount of barge traffic for any river reach in the UMRS. The LTRMP began collecting data in 1988, but the first years of the program were experimental. Currently followed monitoring protocols for water quality and fish monitoring were adopted in 1993; however, a major flood event in that year prevented full data collection for that year. Data from the LTRMP water quality component demonstrate that Pool 26 is a highly productive river reach. Long-term averages of chorophyll-a, total phosphorous, total nitrogen, and total inorganic solids are comparable to levels in eutrophic to highly eutrophic lakes. The average current velocity in the main channel of the Mississippi River in Pool 26 ranges from 0.364–0.414 m/sec. during the summer and fall. Even during the lowest discharge levels in a year, the reach has a residence time no longer than 2.7 days. Discharge was significantly related to many water quality parameters, including Secchi depth, turbidity, total suspended solids, total nitrogen, nitrate-nitrite, and total phosphorus. We observed a significant linear increase in mean water temperature in the main channel from 1994 to 2004. When these data were analyzed by season, positive linear trends were found during the spring (0.515°C per year) and fall (0.646°C per year). Continued monitoring is necessary to determine if these observations represent short term fluctuations or long-term trends and to detect any related effects on this river reach.

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