Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Use of spring scales for weighing live fish in the field
No abstract available.
Authors
Mark R. Jennings
Microcontaminants and reproductive impairment of the Forster's tern on Green Bay, Lake Michigan,1983
For the 1983 nesting season, Forster's tern (Sterna forsteri) reproductive success was significantly impaired on organochlorine contaminated Green Bay, Lake Michigan compared to a relatively uncontaminated inland location at Lake Poygan, Wisconsin. Compared with tern eggs from Lake Poygan, eggs from Green Bay had significantly higher median concentrations of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TC
Authors
T.J. Kubiak, H.J. Harris, L.M. Smith, T.R. Schwartz, D.L. Stalling, J.A. Trick, L. Sileo, D. E. Docherty, T.C. Erdman
Rising water levels and the future of southeastern Louisiana swamp forests
An important factor contributing to the deterioration of wetland forests in Louisiana is increasing water levels resulting from eustatic sea-level rise and subsidence. Analyses of long-term water level records from the Barataria and Verret watersheds in southeastern Louisiana indicate an apparent sea level rise of about 1-m per century, mainly the result of subsidence. Permanent study plots were e
Authors
W.H. Conner, M. Brody
Accretion and canal impacts in a rapidly subsiding wetland II: Feldspar marker horizon technique
Recent (6–12 month) marsh sediment accretion and accumulation rates were measured with feldspar marker horizons in the vicinity of natural waterways and man-made canals with spoil banks in the rapidly subsiding environment of coastal Louisiana. Annual accretion rates in aSpartina alterniflora salt marsh in the Mississippi deltaic plain averaged 6 mm in marsh adjacent to canals compared to 10 mm in
Authors
Donald R. Cahoon, R.E. Turner
Determination of arsenic and selenium in whole fish by continuous-flow hydride generation atomic absorption spectrophotometry
A combined wet chemical and dry ash digestion and use of a continuous- flow hydride generator coupled with a flame-heated quartz cell enabled the simple, precise, and highly automated atomic absorption determination of arsenic and selenium in tissues of whole fish. Percent relative standard deviation averaged 4% for each element; method detection limits (μg/g dry wt) were about 0.06 for arsenic an
Authors
W. G. Brumbaugh, M.J. Walther
Distribution and bioaccumulation of selenium in aquatic microcosms
Closed-system microcosms were used to study factors affecting the fate of selenium (Se) in aquatic systems. Distribution and bioaccumulation of Se varied among sediment types and Se species. A mixture of dissolved 75Se species (selenate, selenite and selenomethionine) was sorbed more rapidly to fine-textured, highly organic pond sediments than to sandy riverine sediments. Sulfate did not affect th
Authors
John M. Besser, James N. Huckins, Edward E. Little, Thomas W. La Point
Classification of lung cancer patients and controls by chromatography of modified nucleosides in serum
A wide spectrum of modified nucleosides has been quantified by high-performance liquid chromatography in serum of 49 male lung cancer patients, 35 patients with other cancers, and 48 patients hospitalized for nonneoplastic diseases. Data for 29 modified nucleoside peaks were normalized to an internal standard and analyzed by discriminant analysis and stepwise discriminant analysis. A model based o
Authors
John E. McEntire, Kenneth C. Kuo, Mark E. Smith, David L. Stalling, Jack W. Richens, Robert W. Zumwalt, Charles W. Gehrke, Ben W. Papermaster
Chronic no-observed-effect concentrations of aluminum for brook trout exposed in low-calcium, dilute acidic water
No abstract available.
Authors
L. Cleveland, E. E. Little, Ray H. Wiedmeyer, D.R. Buckler
Bone characteristics and metal concentrations in white suckers (Catostomus commersoni) from one neutral and three acidified lakes in Maine
The bone characteristics of white suckers, Catostomus commersoni, from four lakes in Maine were studied in relation to lake water quality and metal concentrations in fish. Green Lake had a neutral pH, high buffering capacity, and low aluminum concentrations, whereas the other three lakes had low pH, low buffering capacity, and elevated aluminum concentrations. The concentrations of aluminum in whi
Authors
Steven J. Hamilton, Terry A. Haines
A multiple testing approach for hazard evaluation of complex mixtures in the aquatic environment: the use of diesel oil as a model
Traditional single species toxicity tests and multiple component laboratory-scaled microcosm assays were combined to assess the toxicological hazard of diesel oil, a model complex mixture, to a model aquatic environment. The immediate impact of diesel oil dosed on a freshwater community was studied in a model pond microcosm over 14 days: a 7-day dosage and a 7-day recovery period. A multicomponent
Authors
B. Thomas Johnson
A system for reconstituting special water qualities for use in chronic toxicity studies
A water treatment system and procedure are described that are designed for preparing large quantities of reconstituted water with specific chemical and physical characteristics for use in chronic toxicity studies with fish and invertebrates. Water treatment units produce high-purity water in large quantities for storage in high-density cross-linked polyethylene tanks, where it is combined with var
Authors
Steven J. Hamilton, Neil L. Faerber, Kevin J. Buhl
Acute toxicity of selected herbicides and surfactants to larvae of the midge Chironomus riparius
The acute toxicities of eight commercial herbicides and two surfactants to early fourth instar larvae of the midgeChironomus riparius were determined under static conditions. The formulated herbicides tested were Eradicane® (EPTC), Fargo® (triallate), Lasso® (alachlor), ME4 Brominal® (bromoxynil), Ramrod® (propachlor), Rodeo® (glyphosate), Sencor®(metribuzin), and Sutan (+)® (butylate); the two su
Authors
Kevin J. Buhl, Neil L. Faerber