Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
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Cadmium, metal-binding proteins, and growth in bluegill (Lepomis macrochirus Cadmium, metal-binding proteins, and growth in bluegill (Lepomis macrochirus
We exposed juvenile bluegill (Lepomis macrochirus) to ~1000 mg∙L−1 of continuously suspended river sediment in a 28-d test with six treatments (randomized block with one sediment-free control and five sediments ranging from 1.3 to 21.4 μg Cd∙g dry weight−1). Each treatment had three replicates, each with 25 fish. Growth was reduced by exposure to suspended sediment, probably due to...
Authors
W. Gregory Cope, James G. Wiener, Mark T. Steingraeber, Gary J. Atchison
Geographic distribution: Sphaerodactylus notatus amaurus (Great Bahama Bank Ground Gecko) Geographic distribution: Sphaerodactylus notatus amaurus (Great Bahama Bank Ground Gecko)
Abstract not supplied at this time
Authors
R. Franz, C.K. Dodd
Sirenian status and conservation efforts Sirenian status and conservation efforts
Abstract not supplied at this time
Authors
H. Marsh, L.W. Lefebvre
Standard operating procedures for the fish monitoring project with ENTERGY Corporation Standard operating procedures for the fish monitoring project with ENTERGY Corporation
Abstract not supplied at this time
Authors
C.J. Gagen, J.N. Stoeckel, R.K. Beadel, J.J. Herod, D.O. McCollum
Agricultural chemical screening and detection of chlorpyrifos in fishes from the Apure drainage, Venezuela Agricultural chemical screening and detection of chlorpyrifos in fishes from the Apure drainage, Venezuela
Abstract not supplied at this time
Authors
L.G. Nico, D.J. Schaeffer, D.C. Taphorn, A. Barbarino-Duque.
Contaminants in fishes from Great Lakes-influenced sections and above dams of three Michigan rivers. I: Concentrations of organo chlorine insecticides, polychlorinated biphenyls, dioxin equivalents, and mercury Contaminants in fishes from Great Lakes-influenced sections and above dams of three Michigan rivers. I: Concentrations of organo chlorine insecticides, polychlorinated biphenyls, dioxin equivalents, and mercury
Fishes of the Great Lakes contain hazardous chemicals such as synthetic halogenated hydrocarbons and metals. These fish can move from the lakes into the Great Lakes tributaries of Michigan. In doing so, they transport concentrationsof contaminants which may represent a risk to wildlife. Concentrations of mercury (Hg), total polychlorinated biphenyls (PCBs), 2,3,7,8-tetrachlorodibenzo-p...
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, M. Ludwig, G. A. Dawson, T.J. Kubiak, D. A. Best, D. E. Tillitt
Ecological risk assessment: Application of new approaches and uncertainty analysis Ecological risk assessment: Application of new approaches and uncertainty analysis
No abstract available.
Authors
Lawrence A. Burns, Christopher G. Ingersoll, Gary A. Pascoe
Portable platforms for setting rocket nets in open-water areas Portable platforms for setting rocket nets in open-water areas
Portable platforms for setting rocket nets in open-water habitats were developed and used to capture 1116 waterfowl of seven species during September and October 1991 and 1992 in southwestern Louisiana. Incidence of mortality (1% of captured birds) and escape (3% of captured birds) was low. Rocket-netting from platforms was a reliable and efficient technique for capturing waterfowl, and...
Authors
R. R. Cox, A. D. Afton
Accumulation of 2,3,7,8-Tetrachlorodibenzo-p-dioxin equivalents by double-crested cormorant (Phalacrocorax auritus, Pelicaniformes) chicks in the North American Great Lakes Accumulation of 2,3,7,8-Tetrachlorodibenzo-p-dioxin equivalents by double-crested cormorant (Phalacrocorax auritus, Pelicaniformes) chicks in the North American Great Lakes
Concentrations of polychlorinated biphenyls (PCBs), and 2,3,7,8-tetrachlordibenzo-p-dioxin equivalents (TCDD-EQ) were determined in eggs and chicks of double-crested cormorants (DCC) which were collected in 1989 from eight locations in the Laurentian Great Lakes. The mean biomagnification factor (BMF) from forage fish to eggs was found to be 31.3. Absolute and relative concentrations as...
Authors
P. D. Jones, J. P. Giesy, J.L. Newsted, D. A. Verbrugge, J.P. Ludwig, M. E. Ludwig, H. J. Auman, R. Crawford, D. E. Tillitt, T.J. Kubiak, D. A. Best
Acute and chronic effects of four commercial herbicide formulations on Ceriodaphnia dubia Acute and chronic effects of four commercial herbicide formulations on Ceriodaphnia dubia
Toxicity tests with Ceriodaphnia dubia were conducted to determine acute (48 h) and chronic (7-day survival and reproduction) effects of four commonly used herbicide formulations. The 48-h LC50s in decreasing order of toxicity were 14.36 mg/L (Micro-Tech®), 15.93 mg/L (Bicep®), 32.99 mg/L (Extrazine®), and 35.36 mg/L (Lexone®). Reduced reproduction was detected at concentrations below 48...
Authors
M. P. Ort, J.F. Fairchild, S.E. Finger
National Water-Quality Assessment Program— Eastern Iowa basins National Water-Quality Assessment Program— Eastern Iowa basins
No abstract available.
Authors
Stephen J. Kalkhoff