Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5584
Simulation of the effects of ground-water withdrawals and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts Simulation of the effects of ground-water withdrawals and recharge on ground-water flow in Cape Cod, Martha's Vineyard, and Nantucket Island basins, Massachusetts
The effects of changing patterns of ground-water pumping and aquifer recharge on the surface-water and ground-water hydrologic systems were determined for the Cape Cod, Martha's Vineyard, and Nantucket Island Basins. Three-dimensional, transient, ground-water-flow modelS that simulate both freshwater and saltwater flow were developed for the f1ow cells of Cape Cod which currently have...
Authors
John P. Masterson, Paul M. Barlow
Water resources data, Iowa, water year 1993 Water resources data, Iowa, water year 1993
No abstract available.
Authors
R. E. Southard, D. Sneck-Fahrer, C.J. Anderson, R.D. Goodrich, J.G. Gorman
Prospects for improving the salt tolerance of forest trees: A review Prospects for improving the salt tolerance of forest trees: A review
Three major themes related to the improvement of salt tolerance in forest tree species are examined. First, evidence demonstrating that substantial intraspecific variation in salt tolerance exists in many species is presented. This evidence is important because it suggests that efforts to improve salt tolerance through conventional plant breeding techniques are justified. Second, the...
Authors
J. A. Allen, J. L. Chambers, M. Stine
A water-renewal system that accurately delivers small volumes of water to exposure chambers A water-renewal system that accurately delivers small volumes of water to exposure chambers
This paper describes a system that can accurately deliver small volumes of water (50 ml per cycle) to eight 300-ml beakers. The system is inexpensive
Authors
D. C. Zumwalt, F.J. Dwyer, I.E. Greer, C.G. Ingersoll
Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991 Herbicides and nitrate in near-surface aquifers in the midcontinental United States, 1991
The occurrence and distribution of selected herbicides, atrazine metabolites, and nitrate were determined for near-surface aquifers (within 50 feet of land surface) in the corn- and soybean-producing region of the midcontinental United States. The study region included all or parts of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South...
Authors
Dana W. Kolpin, Michael R. Burkart, E. Michael Thurman
Polychlorinated biphenyl congeners in emergent mayflies from the upper Mississippi River Polychlorinated biphenyl congeners in emergent mayflies from the upper Mississippi River
We determined polychlorinated biphenyls (pcbs) in emergent mayflies (hexagenia bilineata) from a 1250-km reach of the upper mississippi river (UMR). Total pcb concentrations (sum of 125 congeners) ranged from 0.21 To 4.1 Mu g/g of dry weight (1.2-29 mu g/g of lipid weight). Concentrations were highest in pools near the twin cities and the quad cities metropolitan areas. Longitudinal...
Authors
M.T. Steingraeber, T.R. Schwartz, J.G. Wiener, J.A. Lebo
Culebra Island giant anole Anolis roosevelti Culebra Island giant anole Anolis roosevelti
Abstract not supplied at this time
Authors
C.K. Dodd
The interactive effects of herbivory and fire on an oligohaline marsh, Little Lake, Louisiana, USA The interactive effects of herbivory and fire on an oligohaline marsh, Little Lake, Louisiana, USA
Herbivory and fire have been shown to affect the structure and composition of marsh communities. Because fire may alter plant species composition and cover, and these alterations may have an effect on herbivore populations or foraging patterns, an interactive effect of herbivory and fire may be expected. In this study, the effects of fire and vertebrate herbivory in a Louisiana...
Authors
K.L. Taylor, J.B. Grace, G.R. Guntenspergen, A.L. Foote
Geographic distribution: Ameiva auberi obsoleta (Exuma Islands Ameiva) Geographic distribution: Ameiva auberi obsoleta (Exuma Islands Ameiva)
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd
1993 Annual report on the radio telemetry of manatees in Puerto Rico 1993 Annual report on the radio telemetry of manatees in Puerto Rico
Abstract not supplied at this time
Authors
J.P. Reid, R. K. Bonde, Dean E. Easton, H. I. Kochman
Mercury concentrations in perch (Perca fluviatilis) as influenced by lacustrine physical and chemical factors in two regions of Russia Mercury concentrations in perch (Perca fluviatilis) as influenced by lacustrine physical and chemical factors in two regions of Russia
No abstract available.
Authors
T. Haines, V. Komov, C. Jagoe
Scomer dentex Bloch & Schneider, 1801 (currently Caranx or Pseudocaranx) and Caranx lugubris Poey, 1860 (Osteichthyes, Percuriformes): Proposed conservation of the specific names Scomer dentex Bloch & Schneider, 1801 (currently Caranx or Pseudocaranx) and Caranx lugubris Poey, 1860 (Osteichthyes, Percuriformes): Proposed conservation of the specific names
No abstract available.
Authors
W. F. Smith-Vaniz, J.E. Randall