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Upper Mississippi River Wing Dam Notching
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Book Synopsis Upper Mississippi River Wing Dam Notching by : Rodney B. Pierce
Download or read book Upper Mississippi River Wing Dam Notching written by Rodney B. Pierce and published by . This book was released on 1980 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six wing dams and an adjacent side channel in Pool 13 of the Upper Mississippi River were studied in the initial phase (pre-notching) of a project to determine the effects of wing dam notching on fish and aquatic community characteristics. Fifty two species of fish were caught in the study area with hoop nets, electrofishing gear, and a small-mesh seine. Thirty eight fish species were caught on or near wing dams. Electrofishing provided the widest variety of fish species and hoop netting provided the least. Electrofishing and hoop net catches were influenced by river stage or discharge. Species composition of the catches changed more dramatically from sampling month to month than between kinds of habitat. Fish were caught in greatest numbers and diversity throughout the study area in August. Discharge varied from month to month and year to year. Water temperature and dissolved oxygen concentration were nearly uniform with depth and among sampling sites each month. Height of wing dams and their position with respect to an upstream bend in the river and to other wing dams influenced current velocity in the study area. Current sweeping over submerged wing dams and over emergent wing dams during high river stages helps prevent sediment accretion between them.
Book Synopsis Interim Analysis of Wing Dam Notches Pool 5- Upper Mississippi River by : United States. Army. Corps of Engineers. St. Paul District
Download or read book Interim Analysis of Wing Dam Notches Pool 5- Upper Mississippi River written by United States. Army. Corps of Engineers. St. Paul District and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: In June 1999, the St. Paul District completed a channel management study for pool 5. An item of investigation in that study was whether channel control structures could be modified to improve aquatic habitat quality without adversely affecting their function in maintaining the navigation channel.
Book Synopsis Influence of Wing Dam Notching on Fish, Aquatic Macroinvertebrates, Hydrographic Relief, Current Velocity, Substrate, Water Temperature, and Dissolved Oxygen in Pool 13, Upper Mississippi River by : Scott D. Corley
Download or read book Influence of Wing Dam Notching on Fish, Aquatic Macroinvertebrates, Hydrographic Relief, Current Velocity, Substrate, Water Temperature, and Dissolved Oxygen in Pool 13, Upper Mississippi River written by Scott D. Corley and published by . This book was released on 1982 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mississippi River Wing Dam Notching Study by : Rodney B. Pierce
Download or read book Mississippi River Wing Dam Notching Study written by Rodney B. Pierce and published by . This book was released on 1978 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Wing Dam Notching on Aquatic Macroinvertebrates in Pool 13, Upper Mississippi River by : Thomas J. Hall
Download or read book Influence of Wing Dam Notching on Aquatic Macroinvertebrates in Pool 13, Upper Mississippi River written by Thomas J. Hall and published by . This book was released on 1980 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Benthic and colonizing macroinvertebrates and physicochemical characteristics were studied at six wing dams and an adjacent side channel in the prenotching phase of a project to determine the effects of wing dam notching on aquatic macroinvertebrates. Water temperature and dissolved oxygen concentration were uniform with depth in each sampling period but varied among periods. Current velocity varied with sampling period because staff gauge, i.e. discharge, varied with time. Current velocity decreased with depth. The substrate was mainly medium sand because bottom current velocities ranged from 22 to 43 cm/s during 1978. Fifty-six taxa of macroinvertebrates were collected with a Ponar grab sampler in 1978. Oligochaeta, the most abundant class, comprised 51% of benthic invertebrate density. Hexagenia bilineata (Say), Hexagenia limbata (Serville), and early instars of Hexagenia spp. made up 64% of the benthic biomass. Total benthic invertebrate, oligochaete, Hexagenia spp., and chironomid density, and biomass and number of benthic taxa each were positively, significantly related to percent silt-clay in the substrate. All of these macroinvertebrate categories were negatively, significantly related to percent sand in the substrate. The wing dams were islands of rock in a sea of sand. Basket samplers collected 26.5 times more macroinvertebrate numbers and 14.3 times more biomass than the Ponar grab sampler made earlier. These differences were related to habitat, i.e. basket samplers collected invertebrates from a lotic-erosional habitat, and the Ponar grab sampler sampled a lotic-depositional habitat.
Book Synopsis Mitigation and Enhancement Techniques for the Upper Mississippi River System and Other Large River Systems by : Rosalie A. Schnick
Download or read book Mitigation and Enhancement Techniques for the Upper Mississippi River System and Other Large River Systems written by Rosalie A. Schnick and published by . This book was released on 1982 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Large river systems are valuable national resources that provide numerous benefits to travel, shipping, recreation, and fish and wildlife. However, efforts to expand one of the uses frequently come in direct conflict with one or more of the othersThis guide attempts to bring together all scientific data that are available on techniques that have been or can be used to offset or reduce the impacts of development and maintenance of Upper Mississippi River System or other large river systems. Decision makers are thus provided an objective descriptin of options now at their disposal when they attempt to weigh the merits of defects associated with a particular action.
Book Synopsis Identification of Constraints on Regulation of Upper Mississippi River System, Lock and Dam 18 by : United States. Army. Corps of Engineers
Download or read book Identification of Constraints on Regulation of Upper Mississippi River System, Lock and Dam 18 written by United States. Army. Corps of Engineers and published by . This book was released on 1991 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Master Plan for the Management of the Upper Mississippi River Basin by :
Download or read book Comprehensive Master Plan for the Management of the Upper Mississippi River Basin written by and published by . This book was released on 1982 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Main Report written by and published by . This book was released on 1980 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book GREAT II written by and published by . This book was released on 1980 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1981 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Publication written by and published by . This book was released on 1982 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fisheries and Wildlife Research by :
Download or read book Fisheries and Wildlife Research written by and published by . This book was released on 1981 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report on activities in the divisions of research.
Book Synopsis Indexed Bibliography on Stream Habitat Improvement by :
Download or read book Indexed Bibliography on Stream Habitat Improvement written by and published by . This book was released on 1988 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fish Populations Associated with Wing and Closing Dams on the Upper Mississippi River by : John Pitlo
Download or read book Fish Populations Associated with Wing and Closing Dams on the Upper Mississippi River written by John Pitlo and published by . This book was released on 1998 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wing and Closing Dam Investigations by : John Pitlo
Download or read book Wing and Closing Dam Investigations written by John Pitlo and published by . This book was released on 1982 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index to the Annual Proceedings of the Upper Mississippi River Conservation Committee by : Upper Mississippi River Conservation Committee
Download or read book Index to the Annual Proceedings of the Upper Mississippi River Conservation Committee written by Upper Mississippi River Conservation Committee and published by . This book was released on 1989 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
