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Accession Number:
ADA021750
Title:
Environmental Inventory and Assessment of Navigation Pools 24, 25, and 26, Upper Mississippi and Lower Illinois Rivers. An Aquatic Analysis.
Descriptive Note:
Final rept. Feb 74-Mar 75,
Corporate Author:
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
Report Date:
1975-12-01
Pagination or Media Count:
368.0
Abstract:
The purpose of this report was to establish a data base for the physical, chemical, and biological components of the aquatic system in Pools 24, 25 and 26 on the Upper Mississippi and Lower Illinois Rivers. Four major habitats were sampled -- 49 sites at 13 transects on the Upper Mississippi River and 21 sites at 6 transects on the Lower Illinois River. Habitats sampled were the main channel, side channel, river border areas, and areas downstream of dikes. Water and sediment samples were collected for physical and chemical characterization. In situ measurements were made for dissolved oxygen, temperature, total alkalinity, pH, turbidity units, and settleable solids. Laboratory analyses were made of water and sediment samples for chemical oxygen demand, phenols, heavy metals, selected nutrients, and chlorinated hydrocarbons. Benthic organisms, drift organisms, phytoplankton, and zooplankton were collected during both sampling periods. Fish were collected from the Illinois River only. The data collected were subjected to various statistical analyses to test for differences between dates and among habitats and between rivers. The environmental impacts of operation and maintenance activities on the aquatic system are discussed.
Distribution Statement:
APPROVED FOR PUBLIC RELEASE
