Accession Number : ADA323368
Title : The Ecology of Pools 19 and 20, of the Upper Mississippi River: A Community Profile.
Descriptive Note : Biological rept.,
Corporate Author : NATIONAL WETLANDS RESEARCH CENTER SLIDELL LA
Personal Author(s) : Jahn, Larry A. ; Anderson, Richard V.
PDF Url : ADA323368
Report Date : SEP 1986
Pagination or Media Count : 155
Abstract : To accommodate navigation, the Upper Mississippi River has been extensively modified by the dredging of navigation channels and the construction of a series of lock and dam structures. Each lock and dam creates a pool in the river. This document reviews ecological information and data on navigation pools 19 and 20 of the Upper Mississippi River extending from near Keokuk, IA, southward to Canton, MO, and Meyer, IL. This report reviews the geologic history and present physiographic conditions of the pools. Biological populations inhabiting or associated with the pools are described, followed by a section on community functions which includes a discussion of production and trophic interactions. The final chapter describes human impacts on this section of the river.
Descriptors : *MISSISSIPPI RIVER, *ECOLOGY, MAMMALS, NUTRIENTS, POPULATION, GEOLOGY, NAVIGATION, PRODUCTIVITY, RIVERS, INVERTEBRATES, DREDGING, FISHES, AQUATIC PLANTS, DAMS, LOCKS(WATERWAYS), WATERFOWL.
Subject Categories : Ecology
Distribution Statement : APPROVED FOR PUBLIC RELEASE