Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5586
Developmental biology and ecology of the Kemp's ridley sea turtle. Lepidochelys kempii, in the eastern Gulf of Mexico Developmental biology and ecology of the Kemp's ridley sea turtle. Lepidochelys kempii, in the eastern Gulf of Mexico
Abstract not supplied at this time
Authors
J.R. Schmid, W.J. Barichivich
Spatiotemporal patterns of fish assemblage structure in a river impounded by low-head dams Spatiotemporal patterns of fish assemblage structure in a river impounded by low-head dams
We studied spatiotemporal patterns of fish assemblage structure in the Neosho River, Kansas, a system impounded by low-head dams. Spatial variation in the fish assemblage was related to the location of dams that created alternating lotic and lentic stream reaches with differing fish assemblages. At upstream sites close to dams, assemblages were characterized by species associated with...
Authors
David P. Gillette, Jeremy S. Tiemann, David R. Edds, Mark L. Wildhaber
Selenium impacts on razorback sucker, Colorado River, Colorado: II. Eggs Selenium impacts on razorback sucker, Colorado River, Colorado: II. Eggs
Effects on hatching and development of fertilized eggs in adult razorback sucker (Xyrauchen texanus) exposed to selenium in flooded bottomland sites near Grand Junction, Colorado, were determined. After 9 months exposure, fish were collected and induced to spawn and eggs collected for inorganic element analyses. A 9-day egg study was conducted with five spawns from Horsethief ponds, six...
Authors
S. J. Hamilton, K.M. Holley, K.J. Buhl, F.A. Bullard
Implications of global climatic change and energy cost and availability for the restoration of the Mississippi delta Implications of global climatic change and energy cost and availability for the restoration of the Mississippi delta
Over the past several thousand years, inputs from the Mississippi River formed the Mississippi delta, an area of about 25,000 km2. Over the past century, however, there has been a high loss of coastal wetlands of about 4800 km2. The main causes of this loss are the near complete isolation of the river from the delta, mostly due to the construction of flood control levees, and pervasive
Authors
John W. Day
Depicting coastal Louisiana land loss Depicting coastal Louisiana land loss
The Coastal Louisiana Land Loss map depicts historical (1932-2000) changes of land to water and water to land, as well as projected changes (2000-2050). Projections are based on the assumption of no future restoration.
Authors
Gregory J. Smith
Dilemma of the common species: Florida Box Turtles Dilemma of the common species: Florida Box Turtles
Abstract not supplied at this time
Authors
C.K. Dodd
Roads and Florida's herpetofauna: a review and mitigation case study Roads and Florida's herpetofauna: a review and mitigation case study
Abstract not supplied at this time
Authors
L. L. Smith, Kimberly G. Smith, W.J. Barichivich, C.K. Dodd, K. Sorensen
Occurrence of antibiotics in water from 13 fish hatcheries, 2001-2003 Occurrence of antibiotics in water from 13 fish hatcheries, 2001-2003
A 2-year study of extensive and intensive fish hatcheries was conducted to assess the general temporal occurrence of antibiotics in aquaculture. Antibiotics were detected in 15% of the water samples collected during the 2001-2002 collection period and in 31% of the samples during the 2003 collection period. Antibiotics were detected more frequently in samples from the intensive...
Authors
J.E. Dietze, E.A. Scribner, M. T. Meyer, D.W. Kolpin
A rapid solid-phase extraction fluorometric method for thiamine and riboflavin in salmonid eggs A rapid solid-phase extraction fluorometric method for thiamine and riboflavin in salmonid eggs
A new method has been developed and successfully applied to the selective measurement of thiamine (nonphosphorylated), total thiamine (sum of thiamine, thiamine monophosphate [TMP], thiamine diphosphate [TDP], and thiamine triphosphate [TTP]), and potentially interfering riboflavin in acidic (2% trichloroacetic acid) extracts of selected salmonid and walleye egg samples. Acidic extracts...
Authors
James L. Zajicek, Donald E. Tillitt, Scott B. Brown, Lisa R. Brown, Dale C. Honeyfield, John D. Fitzsimons
Comparison of a novel passive sampler to standard water-column sampling for organic contaminants associated with wastewater effluents entering a New Jersey stream Comparison of a novel passive sampler to standard water-column sampling for organic contaminants associated with wastewater effluents entering a New Jersey stream
Four water samples collected using standard depth and width water-column sampling methodology were compared to an innovative passive, in situ, sampler (the polar organic chemical integrative sampler or POCIS) for the detection of 96 organic wastewater-related contaminants (OWCs) in a stream that receives agricultural, municipal, and industrial wastewaters. Thirty-two OWCs were identified...
Authors
D.A. Alvarez, P. E. Stackelberg, J. D. Petty, J.N. Huckins, E. T. Furlong, S.D. Zaugg, M. T. Meyer
Transport of chemical and microbial compounds from known wastewater discharges: Potential for use as indicators of human fecal contamination Transport of chemical and microbial compounds from known wastewater discharges: Potential for use as indicators of human fecal contamination
The quality of drinking and recreational water is currently (2005) determined using indicator bacteria. However, the culture tests used to analyze for these bacteria require a long time to complete and do not discriminate between human and animal fecal material sources. One complementary approach is to use chemicals found in human wastewater, which would have the advantages of (1)...
Authors
S.T. Glassmeyer, E. T. Furlong, D.W. Kolpin, J.D. Cahill, S.D. Zaugg, S.L. Werner, M. T. Meyer, D.D. Kryak