Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16740
Effects of flooding croplands in winter on water quality in the Mississippi delta Effects of flooding croplands in winter on water quality in the Mississippi delta
No abstract available.
Authors
S.W. Manley, R.M. Kaminski, S.H. Schoenholtz, P. Rodrigue, K. J. Reinecke
Chloride cells and impaired osmoregulation in juvenile American shad Chloride cells and impaired osmoregulation in juvenile American shad
No abstract available.
Authors
Joseph D. Zydlewski, S. D. McCormick
Toxicity of Abate to green frog tadpoles Toxicity of Abate to green frog tadpoles
Green frog tadpoles were exposed to a 96hr toxicity test using Abate4E, the formulation for temephos used in mosquito control. Concentrations ranged from 0 (control) to 10 uL/L. Concentrations as low as 2.60 uL/L reduced activity for several hours after exposure but had negligible effects after 24 hr, presumably because the temephos had degraded during that time. The LC50 for Abate was 4...
Authors
D. W. Sparling, T. P. Lowe, A.E. Pinkney
Toxicity of alkalinity to Hyalella azteca Toxicity of alkalinity to Hyalella azteca
Toxicity testing and chemical analyses of sediment pore water have been suggested for use in sediment quality assessments and sediment toxicity identification evaluations. However, caution should be exercised in interpreting pore-water chemistry and toxicity due to inherent chemical characteristics and confounding relationships. High concentrations of alkalinity, which are typical of...
Authors
P. J. Lasier, P. V. Winger, R.E. Reinert
Ecology and management of subdivided animal populations Ecology and management of subdivided animal populations
No abstract available.
Authors
J.D. Lebreton, J.D. Nichols
Reinterpretation of the peninsular Florida Oligocene: An integrated stratigraphic approach Reinterpretation of the peninsular Florida Oligocene: An integrated stratigraphic approach
A very thick (> 300 m) nearly continuous Oligocene section exists in southern peninsular Florida, as revealed by lithostratigraphic, biostratigraphic (mollusks and dinocysts), chronostratigraphic (Sr isotopes) and petrographic analyses of twelve cores and two quarries. The Oligocene deposits in the subsurface of southern Florida are the thickest documented in the southeastern U.S., and...
Authors
G. Lynn Wingard, T.M. Scott, Lucy E. Edwards, S.D. Weedman, K. R. Simmons
Continuous monitoring of dissolved oxygen and total dissolved gas pressure based on head-space partial pressures Continuous monitoring of dissolved oxygen and total dissolved gas pressure based on head-space partial pressures
We describe an instrument prototype that measures total dissolved gas pressure (TGP) and dissolved oxygen (DO) without need for standard wetted probe membranes or gas permeable tubing. Measurements were based instead on gas-phase partial pressures that develop within the head-space of a pressure vessel, and on Henry's Law. Performance trials established that differences between standard
Authors
B.J. Watten, D. R. Smith, W. J. Ridge
Studying black bears in the Okefenokee: A "down-on-all-fours" field report Studying black bears in the Okefenokee: A "down-on-all-fours" field report
No abstract available.
Authors
J. D. Clark, D.M. Brandenburg
Infectious pancreatic necrosis virus in the environment: Relationship to effluent from aquaculture facilities Infectious pancreatic necrosis virus in the environment: Relationship to effluent from aquaculture facilities
Effluents from three fish hatcheries were monitored for the discharge and subsequent downstream distribution of infectious pancreatic necrosis virus (IPNV). Samples of springwater and surface water, and tissues from salmonid and non-salmonid fish were assayed for IPNV. Water samples were processed to recover virus by adsorption to an electropositive, microporous filter matrix. No IPNV...
Authors
P. E. McAllister, J. Bebak
Prey patchiness and larval fish growth and survival: inferences from an individual-based model Prey patchiness and larval fish growth and survival: inferences from an individual-based model
We used an individual-based simulation model to evaluate how prey patchiness and fish swimming behavior affect larval fish survival and mortality source (predation or starvation). Simulations revealed that cohort survival increased linearly with greater average patch residence times and that patch residence times for individual fish with different fates (survived, starved, eaten)...
Authors
Benjamin H. Letcher, James A. Rice
Comparison of satellite-derived with ground-based measurements of the fluctuations of the margins of Vatnajökull, Iceland, 1973–92 Comparison of satellite-derived with ground-based measurements of the fluctuations of the margins of Vatnajökull, Iceland, 1973–92
Vatnajökull, Iceland, is the Earth’s most studied ice cap and represents a classical glaciological field site on the basis of S. Pálsson’s seminal glaciological field research in the late 18th century. Since the 19th century, Vatnajökull has been the focus of an array of glaciological studies by scientists from many nations, including many remote-sensing investigations since 1951...
Authors
Richard S. Williams, Dorothy K. Hall, Oddur Sigurdsson, Janet Y.L. Chien
New acid mine drainage treatment technology shows promise New acid mine drainage treatment technology shows promise
No abstract available.
Authors
M. Cole, D. Arnold, R. Ross, B. Watten