Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5584
Contaminant induced reproductive anomalies in Florida alligators Contaminant induced reproductive anomalies in Florida alligators
Abstract not supplied at this time
Authors
T. S. Gross, L. J. Guillette, H.F. Percival, G.R. Mason, J.M. Matter, A.R. Woodward
Fisheries of the Cocos (Keeling) Islands Fisheries of the Cocos (Keeling) Islands
No abstract available.
Authors
Gerald R. Allen, William F. Smith-Vaniz
Contaminants in fishes from Great Lakes-influenced sections and above dams of three Michigan rivers. II: Implications for health of mink Contaminants in fishes from Great Lakes-influenced sections and above dams of three Michigan rivers. II: Implications for health of mink
Populations of mink (Mustela vison) have declined in many areas of the world. Such declines have been linked to exposures to synthetic, halogenated hydrocarbons. In the Great Lakes region, mink are fewer in areas along the shore of the Great Lakes and their tributaries where mink have access to fish from the Great Lakes. Recently, there has been discussion of the relative merits of...
Authors
J. P. Giesy, D. A. Verbrugge, R. A. Othout, W.W. Bowerman, M.A. Mora, P. D. Jones, J.L. Newsted, C. Vandervoort, S. N. Heaton, R.J. Aulerich, S.J. Bursian, J. P. Ludwig, G. A. Dawson, T.J. Kubiak, D. A. Best, D. E. Tillitt
Flood of June 17, 1990, in the Clear Creek Basin, east-central Iowa Flood of June 17, 1990, in the Clear Creek Basin, east-central Iowa
A water-surface-elevation profile for the flood of June 17, 1990, in the Clear Creek Basin, east-central Iowa, is given in this report. The maximum flood-peak discharge of 10,200 cubic feet per second for the streamflow-gaging station on Clear Creek near Coralville, Iowa (station number 05454300), occurred on June 17, 1990. This discharge was approximately equal to the 80-year recurrence...
Authors
K.K. Barnes, D. A. Eash
Temperature and salinity tolerance of selected nonindigenous fishes established or collected in Florida Temperature and salinity tolerance of selected nonindigenous fishes established or collected in Florida
Abstract not supplied at this time
Authors
L.O. Goodkin, T.L. Crisman, J.D. Williams
Seagrasses, dredging and light in Laguna Madre, Texas, U.S.A. Seagrasses, dredging and light in Laguna Madre, Texas, U.S.A.
Light reduction resulting from maintenance dredging was the suspected cause of large-scale loss of seagrass cover in deep parts of Laguna Madre between surveys conducted in 1965 and 1974. Additional changes to 1988, together with an analysis of dredging frequency and intensity for different parts of the laguna, were consistent with this interpretation. Intensive monitoring of the...
Authors
Christopher P. Onuf
Monitoring and protecting biotic diversity Monitoring and protecting biotic diversity
Abstract not supplied at this time
Authors
C.K. Dodd
A summary of water-resources activities of the U.S. Geological Survey in Iowa, fiscal year 1994 A summary of water-resources activities of the U.S. Geological Survey in Iowa, fiscal year 1994
Water-resources programs and activities of the U.S. Geological Survey in Iowa consist principally of hydrologic data collection and investigative studies that address water-resource issues. The work is supported by direct Federal funding, by transfer of funds from other Federal agencies, and by joint-funding agreements with State or local agencies. The Iowa District of the Geological...
Authors
R.C. Buchmiller
The relationship between species richness and community biomass: The importance of environmental variables The relationship between species richness and community biomass: The importance of environmental variables
Several studies have used plant community biomass to predict species richness with varying success. In this study we examined the relationship between species richness and biomass for 36 marsh communities from two different watersheds. In addition, we measured several environmental variables and estimated the potential richness (the total number of species known to be able to occur in a...
Authors
L. Gough, J.B. Grace, K.L. Taylor
Geographic distribution: Leiocephalus carinatus virescens (Exuma Islands Curlytail Lizard) Geographic distribution: Leiocephalus carinatus virescens (Exuma Islands Curlytail Lizard)
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd
Intraspecific variation in the response of Taxodium distichum seedlings to salinity Intraspecific variation in the response of Taxodium distichum seedlings to salinity
Seedlings of 15 open-pollinated families of baldcypress (Taxodium distichum) were tested for their tolerance to combined salinty and flooding stress. Ten of the families were from coastal locations in Louisiana or Alabama, USA, that were slightly brackish. The other families were from locations not affected by saltwater intrusion. Five salinity levels were investigated--0,2,4,6, and 8 g...
Authors
J. A. Allen, J. L. Chambers, D. McKinney
Life history notes: Alsophis vudii vudii (Brown runner). Diet and Growth Life history notes: Alsophis vudii vudii (Brown runner). Diet and Growth
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd