Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5579
Population manipulations Population manipulations
Abstract not supplied at this time
Authors
C.K. Dodd
Assessing contaminant sensitivity of endangered and threatened aquatic species: Part I. Acute toxicity of five chemicals Assessing contaminant sensitivity of endangered and threatened aquatic species: Part I. Acute toxicity of five chemicals
Assessment of contaminant impacts to federally identified endangered, threatened and candidate, and state-identified endangered species (collectively referred to as "listed" species) requires understanding of a species' sensitivities to particular chemicals. The most direct approach would be to determine the sensitivity of a listed species to a particular contaminant or perturbation. An...
Authors
F.J. Dwyer, F.L. Mayer, L.C. Sappington, D.R. Buckler, C.M. Bridges, I.E. Greer, D.K. Hardesty, C.E. Henke, C.G. Ingersoll, J.L. Kunz, D.W. Whites, T. Augspurger, D.R. Mount, K. Hattala, G.N. Neuderfer
Woody debris in the mangrove forests of South Florida Woody debris in the mangrove forests of South Florida
Woody debris is abundant in hurricane‐impacted forests. With a major hurricane affecting South Florida mangroves approximately every 20 yr, carbon storage and nutrient retention may be influenced greatly by woody debris dynamics. In addition, woody debris can influence seedling regeneration in mangrove swamps by trapping propagules and enhancing seedling growth potential. Here, we report...
Authors
K. W. Krauss, T.W. Doyle, R.R. Twilley, T. J. Smith, K.R.T. Whelan, J.K. Sullivan
Can diet-dependent factors help explain fish-to-fish variation in thiamine-dependent early mortality syndrome? Can diet-dependent factors help explain fish-to-fish variation in thiamine-dependent early mortality syndrome?
To provide insight into the reasons why offspring of certain salmonine females exhibit early mortality syndrome (EMS) in the Great Lakes whereas others do not, we measured the egg concentrations of potential biochemical markers (stable isotopes of nitrogen and carbon, fatty acid signatures, and lipid-soluble carotenoids and vitamins) that are indicative of differing food web and trophic...
Authors
S.B. Brown, M.T. Arts, L. R. Brown, M. Brown, K. Moore, M. Villella, J.D. Fitzsimons, D. C. Honeyfield, D. E. Tillitt, J.L. Zajicek, M. Wolgamood, J.G. Hnath
Herbicides and degradates in shallow aquifers of Illinois: Spatial and temporal trends Herbicides and degradates in shallow aquifers of Illinois: Spatial and temporal trends
During the fall of 2000, the occurrence was examined of 16 herbicides and 13 herbicide degradates in samples from 55 wells in shallow aquifers underlying grain producing regions of Illinois. Herbicide compounds with concentrations above 0.05 μg/L were detected in 56 percent of the samples. No concentrations exceeded regulatory drinking water standards. The six most frequently detected...
Authors
P. C. Mills, D.W. Kolpin, E.A. Scribner, E.M. Thurman
Surficial geologic tools in fluvial geomorphology: chapter 2 Surficial geologic tools in fluvial geomorphology: chapter 2
No abstract available.
Authors
Robert B. Jacobson, James E. O'Connor, Takashi Oguchi
Selenium impacts on razorback sucker, Colorado: Colorado River: III. Larvae Selenium impacts on razorback sucker, Colorado: Colorado River: III. Larvae
Razorback sucker (Xyrauchen texanus) larvae from adults exposed to selenium at three sites near Grand Junction, Colorado, for 9 months were used in a 30-day waterborne and dietary selenium study. Selenium concentrations in water averaged
Authors
Steven J. Hamilton, Kathy M. Holley, Kevin J. Buhl, Fern A. Bullard
Assessing contaminant sensitivity of endangered and threatened aquatic species: Part III. Effluent toxicity tests Assessing contaminant sensitivity of endangered and threatened aquatic species: Part III. Effluent toxicity tests
Toxicity tests using standard effluent test procedures described by the U.S. Environmental Protection Agency were conducted with Ceriodaphnia dubia, fathead minnows (Pimephales promelas), and seven threatened and endangered (listed) fish species from four families: (1) Acipenseridae: shortnose sturgeon (Acipenser brevirostrum); (2) Catostomidae; razorback sucker (Xyrauchen texanus); (3)...
Authors
F.J. Dwyer, D.K. Hardesty, C.E. Henke, C.G. Ingersoll, D.W. Whites, T. Augspurger, T.J. Canfield, D.R. Mount, F.L. Mayer
Rejoinder to "The performance of mixture models in heterogeneous closed population capture-recapture" Rejoinder to "The performance of mixture models in heterogeneous closed population capture-recapture"
No abstract available.
Authors
Robert Dorazio, J. Andrew Royle
Thiamine status in adult salmonines in the Great Lakes Thiamine status in adult salmonines in the Great Lakes
In 1996 and again in 1999, hatchery personnel noted that some Lake Michigan coho salmon Oncorhynchus kisutch from fall spawning runs on the Platte River weir exhibited abnormal wiggling behavior that was similar to the behavior exhibited by thiamine-deficient Atlantic salmon Salmo salar, from the Baltic Sea. Samples of eggs or gonads, muscle, and liver from salmon and lake trout...
Authors
S.B. Brown, D. C. Honeyfield, J.G. Hnath, M. Wolgamood, S.V. Marcquenski, J.D. Fitzsimons, D. E. Tillitt
Use of sediment quality guidelines Use of sediment quality guidelines
Are sediment quality guidelines (SQGs) adequately able to predict the presence or absence of chronic toxicity to sediment-dwelling organisms in field-collected sediments? Can SQGs predict effects resulting from the bioaccumulation of sediment-associated contaminants? Do SQGs define cause-and-effect relationships? Can they predict effects on organisms exposed in the field on the basis of...
Authors
R. J. Wenning, G. E. Batley, Christopher G. Ingersoll, David W. Moore
Implications of thiamine deficiency in Great Lakes salmonines Implications of thiamine deficiency in Great Lakes salmonines
Our recent experimental work and ecoepizootiological assessments provide mechanistic data supporting a plausible hypothesis for an association between a prey base comprised of a large biomass of nonnative alewives Alosa pseudoharengus and the recruitment difficulties currently experienced by Great Lakes salmonines. We hypothesize that the thiamine deficiency induced by alewives, a...
Authors
Scott B. Brown, John D. Fitzsimons, Dale C. Honeyfield, Donald E. Tillitt