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Publications

Browse more than 150,000 publications authored by our scientists over the past 100+ year history of the USGS.  Publications available are: USGS-authored journal articles, series reports, book chapters, other government publications, and more.

Upper Midwest Environmental Sciences Center Publications

Filter Total Items: 3311

Seasonal reproductive development of Lampsilis cardium, Amblema plicata plicata, and Potamilus alatus Seasonal reproductive development of Lampsilis cardium, Amblema plicata plicata, and Potamilus alatus

Adult specimens of three species of freshwater mussels common to the upper Mississippi River were examined histologically to determine seasonal patterns of development in gametogenesis and release of glochidia. Full maturation of gonadal materials in Lampsilis cardium (formerly L. ovata ventricosa), a long-term breeder, occurred when ambient river temperatures reached 24° to 26°C...
Authors
L. E. Holland Bartels, T. W. Kammer

Microbial degradation of crude oil and some model hydrocarbons Microbial degradation of crude oil and some model hydrocarbons

Research on microbial degradation of crude oil in the shallow subsurface at a spill site near Bemidji, Minn. (fig. C-l), began in 1983 (Hull, 1984; Chang and Ehrlich, 1984). The rate and extent of crude oil and model hydrocarbon biodegradation by the indigenous microbial community was measured in the laboratory at several concentrations of inorganic nutrients, conditions of oxygen...
Authors
Fu-Hsian Chang, N.N. Noben, Danny Brand, Marc F. Hult

Variations in abundance of young-of-the-year channel catfish in a navigation pool of the upper Mississippi River Variations in abundance of young-of-the-year channel catfish in a navigation pool of the upper Mississippi River

Spatial and temporal variations in the abundance of young‐of‐the‐year channel catfish Ictalurus punctatus were determined over 3 years based on 154 trawls taken from Navigation Pool 7 of the upper Mississippi River. No significant spatial patterns in abundance or length offish in the catch were found in seven poolwide surveys of the main channel. However, high variation among replicates...
Authors
L. E. Holland Bartels, M.C. Duval

Aggregation of Minnesota water-use data and transfer of data to the National Water-Use Data System; Procedures and programs Aggregation of Minnesota water-use data and transfer of data to the National Water-Use Data System; Procedures and programs

The Minnesota Water-Use Data System stores data on the quantity of withdrawals and discharge in Minnesota. To transfer these data into the U.S. Geological Survey 's National Water-Use Data System properly, certain procedures must be followed. Uniform data categorization and entry allows comparison of water use from State to State. The data in the National Water-Use Data System are...
Authors
L. C. Trotta

U.S. Geological Survey ground-water studies in Wisconsin U.S. Geological Survey ground-water studies in Wisconsin

GROUND-WATER ISSUES Ground-water sources provide about one-half of the water used in Wisconsin, excluding the water used for thermoelectric cooling. Ground-water sources serve about 70 percent of the State's population. All rural-domestic supplies and about 94 percent of the municipalities use ground water. Nearly all irrigation and stock watering are from ground water. Aquifers in...
Authors
J. H. Green
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