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Page 3173, results 79301 - 79325

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Evaluation of the immunological and hematological effects of chronic exposure of adult Peromyscus leucopus to Aroclor 1254 at concentrations equivalent to those at contaminated sites
S.R. Arena, M. Segre, J.B. French Jr.
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 232 (abstr
Polychlorinated biphenyls are known to cause adverse health effects to biological systems; however, limited data is available on their effects on the immune system of wild species. Previous work by our lab found that 4 and 6-week old white-footed mice (Perornyscus leucopus) born from dams injected with a single dose...
Seasonal distribution of bird populations at the Patuxent Research Refuge
R. E. Stewart, J.B. Cope, C.S. Robbins, J.W. Brainerd
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 257-363
A detailed study of seasonal changes in bird populationswas made at the Patuxent Research Refuge, located between Bowie and Laurel, Maryland during the years 1936-1949. The history of the Refuge is reviewed and its physical and biological characteristlcs summarized.. The methods of study used during the investigation...
Tumor prevalence and biomarkers in brown bullheads (Ameiurus nebulosus) from the tidal Potomac River watershed [poster]
R.T. Mitchell
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 1-3
Associations between contaminant exposure and liver and skin tumor prevalence were evaluated in brown bullheads (Ameiurus nebulosus) from the tidal Potomac River watershed. Thirty bullheads (>260 mm) were collected from (1) Quantico embayment, near a Superfund site which released organochlorine contaminants; (2) Neabsco Creek, a tributary with petroleum inputs...
Wildlife in a chemical world
J.P. Linduska
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 144-149
Snapping turtles were collected by the Ohio State EPA from six locations in Ohio believed to have different contaminant concentrations. Previously we reported significant correlations among four hepatic microsomal dealkylases and CYP1A in these turtles. Herein we compare ethoxyresorufin-O-dealkylase (EROD) and methoxyROD (MROD) to tissue contaminant concentrations....
Influence of calcium on the distribution of the pheasant in North America
F.H. Dale
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 316-323
Rapid Bioassessment Protocols (RBP) and the Sediment Quality Triad (SQT) were used to evaluate the biological effects of a municipal waste-water treatment facility (WWTF) on a small southern stream. During major storm events, raw sewage from the WWTF is released directly into the stream. The headwaters of the...
Effects of the mosquito larvicide GB-1111 on mallard and bobwhite embryos
W. H. Stickel
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 230. (abst
Golden Bear Oil or GB-1111 is a petroleum distillate that is used throughout the United States as a larvicide for mosquito pupae. The oil forms a barrier at the air-water interface, which suffocates air-breathing insects. There are few published studies on non-target effects of GB-1111 but the product...
Evaluating cytochrome P450 in birds by monooxygenases and immunohistochemistry: possible nonlethal assessment by skin immunohistochemistry
M. J. Melancon, A.L. Kutay, Bruce R. Woodin, John J. Stegeman
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 44 (abstra
Six month old Lesser Scaup and nestling Tree Swallows were injected intraperitoneally with beta-naphthoflavone (BNF) or vehicle. Nestling Tree Swallows were also collected from five sites with differing levels of contaminants. Liver samples were taken and stored at -80C until microsome preparation and monooxygenase (MO) assay. Skin...
Seventeenth breeding-bird census. 34. Diked wet meadow
C.S. Robbins, G.F. Boyer
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 354-355
Several characteristics of plumage, including color and molt schedule, are influenced by hormonal signals, and hence may be modified by endocrine active contaminants. If so, the functions of plumage (e.g. communication for mating or territorial defense), may be compromised by exposure to such compounds. Polychlorinated biphenyls (PCBs) are...
The Japanese Quail as an avian model for testing endocrine disrupting chemicals: endocrine and behavioral end points
M. A. Ottinger, M.A. Abdelnabi, N. Thompson, J. Wu, K. Henry, E. Humphries, P.F.P. Henry
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 118 (abstr
Birds have extremely varied reproductive strategies. As such, the impact of endocrine disrupting chemicals (EDCs) can greatly differ across avian species. Precocial species, such as Japanese quail appear to be most sensitive to EDC effects during embryonic development, particularly sexual differentiation. A great deal is known about the ontogeny of...
Tumor prevalence and biomarkers in brown bullheads (Ameiurus nebulosus) from the tidal Potomac River watershed [poster]
A.E. Pinkney, J.C. Harshbarger, E.B. May, M. J. Melancon
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 165 (abstr
Associations between contaminant exposure and liver and skin tumor prevalence were evaluated in brown bullheads (Ameiurus nebulosus) from the tidal Potomac River watershed. Thirty bullheads (>260 mm) were collected from (1) Quantico embayment, near a Superfund site which released organochlorine contaminants; (2) Neabsco Creek, a tributary with petroleum inputs...
Influence of calcium on the distribution of the pheasant in North America
P. Winger, P. Lasier, K. Bogenrieder
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 291 (abstr
Rapid Bioassessment Protocols (RBP) and the Sediment Quality Triad (SQT) were used to evaluate the biological effects of a municipal waste-water treatment facility (WWTF) on a small southern stream. During major storm events, raw sewage from the WWTF is released directly into the stream. The headwaters of the...
Seventeenth breeding-bird census. 34. Diked wet meadow
M.J. Quinn, M. A. Ottinger, J.B. French Jr.
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 262 (abstr
Several characteristics of plumage, including color and molt schedule, are influenced by hormonal signals, and hence may be modified by endocrine active contaminants. If so, the functions of plumage (e.g. communication for mating or territorial defense), may be compromised by exposure to such compounds. Polychlorinated biphenyls (PCBs) are...
Evaluating endocrine endpoints relative to reproductive success in Japanese quail exposed to estrogenic chemicals [poster]
P.F.P. Henry, E. Russek-Cohen, C.S. Casey, M.A. Abdelnabi, M. A. Ottinger
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 263 (abstr
The standard US EPA guidelines for avian reproductive testing may not be sufficiently sensitive to detect effects of sublethal and chronic exposure to endocrine disrupting toxins. There is a need to evaluate endocrine endpoints as potential markers for contaminant effects, and to determine their effectiveness and sensitivity when applied...
Wildlife in a chemical world
M. J. Melancon, J.S. Russell, J.F. Estenik, S.W. Fisher, H. Dabrowska
2000, Conference Paper, Environmental sciences in the 21st century: Paradigms, opportunities, and challenges
Snapping turtles were collected by the Ohio State EPA from six locations in Ohio believed to have different contaminant concentrations. Previously we reported significant correlations among four hepatic microsomal dealkylases and CYP1A in these turtles. Herein we compare ethoxyresorufin-O-dealkylase (EROD) and methoxyROD (MROD) to tissue contaminant concentrations....
Seasonal distribution of bird populations at the Patuxent Research Refuge
D. J. Hoffman, Charles J. Henny, E. F. Hill, J.A. Keith, R. A. Grove
2000, Society of Environmental Toxicology and Chemistry, annual meeting abstract book (21) 229. (abst
High concentrations of mercury from past mining activities have accumulated in the food chain of fish-eating birds nesting along the mid to lower Carson River. Activities of nine plasma and tissue enzymes, and concentrations of other plasma and tissue constituents were measured for black-crowned night-heron, Nycticorax nycticorax, (BCNH) and...
Clearcut stand size and scrub-successional bird assemblages
David G. Krementz, J.S. Christie
2000, The Auk (117) 913-924
We investigated the effects of clearcut stand size on species richness, reproductive effort, and relative abundance of scrub-successional birds and the entire bird assemblage at the Savannah River Site in South Carolina. We used standardized mist-net grids to mark and recapture birds in clearcuts replanted with longleaf pine (Pinus palustris)...
Developmental toxicity of lead-contaminated sediment in Canada geese (Branta canadensis)
David J. Hoffman, Gary H. Heinz, Louis Sileo, Daniel J. Audet, Juile K. Campbell, Holly H. Obrecht III
2000, Journal of Toxicology and Environmental Health, Part A: Current Issues (59) 235-252
Sediment ingestion has recently been identified as an important exposure route for toxicants in waterfowl. The effects of lead-contaminated sediment from the Coeur d'Alene River Basin (CDARB) in Idaho on posthatching development of Canada geese (Branta canadensis) were examined for 6 wk. Day-old goslings received either untreated control diet, clean...
Seismovolcanic signals at Deception Island volcano, Antarctica: Wave field analysis and source modeling
Jesus M. Ibanez, Pezzo E. Del, Javier Almendros, Mario La Rocca, Gerardo Alguacil, Ramon Ortiz, Alicia Garcia
2000, Journal of Geophysical Research: Solid Earth (105) 13905-13931
The seismovolcanic signals associated with the volcanic activity of Deception Island (Antarctica), recorded during three Antarctic summers (1994–1995, 1995–1996 and 1996–1997), are analyzed using a dense small-aperture (500 m) seismic array. The visual and spectral classification of the seismic events shows the existence of long-period and hybrid isolated seismic events,...
Tumor Prevalence and Biomarkers of Exposure and Response in Brown Bullheads (Ameiurus nebulosus) from the Tidal Potomac River Watershed
A.E. Pinkney, J.C. Harshbarger, E.B. May, M. J. Melancon
2000, Report
Four groups of thirty brown bullheads (Ameiurus nebulosus) were collected from the tidal Potomac River watershed to survey tumor prevalence in relation to contaminant exposure. Fish were obtained from the Quantico embayment, near a Superfund site that released polychlorinated biphenyls (PCBs) and DDT compounds; Neabsco Creek,.a tributary with petroleum...
Contaminant Hazard Reviews (compilation)
R. Eisler, R. E. Munro, L.M. Loges, K. Boone, M.M. Paul, L.J. Garrett
2000, Report
This compact disc (CD) contains the 35 reports in the Contaminant Hazard Reviews (CHR) that were published originally between 1985 and 1999 in the U.S. Department of the Interior Biological Report series. The CD was produced because printed supplies of these reviews--a total of 105,000--became exhausted and demand remained high....