[PDF] Fish And Wildlife Habitat Changes Resulting From Construction Of A Nine Foot Channel On Pools 24 25 And 26 Of The Mississippi River And The Lower Illinois River Classic Reprint eBook

Author : Richard E. Sparks
Publisher : Forgotten Books
Page : 464 pages
File Size : 39,58 MB
Release : 2016-09-09
Category : Business & Economics
ISBN : 9781333537852

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Excerpt from Fish and Wildlife Habitat Changes Resulting From Construction of a Nine-Foot Channel on Pools 24, 25, and 26 of the Mississippi River and the Lower Illinois River The study reach of the Mississippi River extends from Alton, Illinois upstream for miles to near Saverton, Missouri (figures 1 and Charts of the upper Mississippi River have been prepared by the u.s. Army Engineer Division, North Central, Chicago, Illinois (1975) and locations are given in river miles, starting from mile at the intersection of the Ohio and Mississippi Rivers near Cairo, Illinois and proceeding upstream to a point just above minneapolis-st. Paul, Minnesota. The study area of the Mississippi River used in this report extends from Mississippi River mile to The navigational locks and dams along the river impound waters, called pools, which provide convenient reference to the geographic location of various sections of the study area. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Author : National Research Council
Publisher : National Academies Press
Page : 580 pages
File Size : 49,54 MB
Release : 1992-01-01
Category : Technology & Engineering
ISBN : 9780309045346

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Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.

Author :
Publisher :
Page : 322 pages
File Size : 47,14 MB
Release : 2001
Category :
ISBN :

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The purpose of this study was to evaluate channel management in pool 3 and upper pool 4 on the Mississippi River. The study area is from the head of Lake Pepin upstream to Look and Dam 2 at Hastings, MN. A lateral current problem below Lock and Dam 2 might be solved by extending the lower guard wall, but this would need further study. Shoaling problems were identified in the Big River reach, and shoaling and associated channel maintenance requirements are needed at river miles 799-803. Restoration of 4 wing dams at river mile 805 is recommended to reduce shoaling. Fish habitat benefits will be achieved through notching 18 wing dams and partial removal of another. The notches are designed to promote the formation of scour holes and channels to improve bathymetric diversity. Construction of a new spot dike at Carter Slough (river mile 807.3) is recommended to prevent habitat degradation occurring as a result of a bypass of the existing spot dike, and to assure the long term integrity of pool 3.

Author : Robert W. Nailon
Publisher :
Page : 82 pages
File Size : 14,65 MB
Release : 1984
Category : Aquatic ecology
ISBN :

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Dike structures, designed and installed by the U.S. Army Corps of Engineers in the Lower Mississippi River, can modify river geomorphology, discharge rates, and sediment movements within the river. These changes in the river's characteristics, plus the presence of the dikes themselves, result in shifts in types, sizes, and variety of aquatic habitats on a yearly basis. At low water river stages, isolated dike pools bordered by bars are formed, creating distinct aquatic habitats which are quite variable in size and depth. Fish and water samples collected in two such dike pools as well as from the adjacent river border wee used to determine the importance of dike pool habitats to fish communities during a low water period of 1980. Hydrological results indicate that overall differences in water quality were easily distinguishable once stratification began. Surface readings of dissolved oxygen, temperature, and pH were generally higher in the pool habitats than in the main channel. As depth increased, the opposite was true for dissolved oxygen, temperature, and pH. Conductivity at the bottom in the pools during isolation was much higher than in the main channel.