Research Topics
| Aaron T FiskSummaryAffiliation: University of Georgia Country: USA Publications
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Detail Information
Publications
Patterns of development and abnormalities among tadpoles in a constructed wetland receiving treated wastewaterAlina M Ruiz
D B Warnell School of Forestry and Natural Resources, University of Georgia, Athens, Georgia, USA
Environ Sci Technol 44:4862-8. 2010..Our results suggest that portions of constructed wetlands that directly receive treated wastewater may be poor amphibian habitat...
An assessment of the toxicological significance of anthropogenic contaminants in Canadian arctic wildlifeAaron T Fisk
Warnell School of Forest Resources, University of Georgia, Athens, GA 30602 2152, USA
Sci Total Environ 351:57-93. 2005....- Soft-tissue mineralization of bullfrog larvae (Rana catesbeiana) at a wastewater treatment facilityM Kevin Keel
Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, The University of Georgia, Athens, Georgia 30602, USA
J Vet Diagn Invest 22:655-60. 2010..To date, the primary cause of elevated cholecalciferol is undetermined, but it appears to be remediated by passage of water through the wetlands... - Bioaccumulation, biotransformation, and metabolite formation of fipronil and chiral legacy pesticides in rainbow troutBrad J Konwick
Department of Environmental Health Science, University of Georgia, Athens, Georgia 30602, USA
Environ Sci Technol 40:2930-6. 2006..This research demonstrates the utilities of the log K(ow)--log t1/2 relationship as a mechanistic tool for quantifying biotransformation and of chiral analysis to measure biotransformation in fish... - Bioaccumulation and biotransformation of chiral triazole fungicides in rainbow trout (Oncorhynchus mykiss)Brad J Konwick
Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, United States
Aquat Toxicol 80:372-81. 2006..Based on the rapid biotransformation of the triazoles, future research should focus on formation of metabolites and their fate and possible effects in the environment... - Fractionation and metabolic turnover of carbon and nitrogen stable isotopes in black fly larvaeJay P Overmyer
Department of Entomology, University of Georgia, Athens, GA 30602, USA
Rapid Commun Mass Spectrom 22:694-700. 2008..The rapid turnover of nitrogen in black fly larvae, which was orders of magnitude greater than measured in vertebrates, makes them an excellent indicator of short-term changes in nitrogen inputs to aquatic systems... - Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United StatesScott A Rush
University of Georgia, Warnell School of Forestry and Natural Resources, Athens, GA 30602 2152, USA
Environ Pollut 153:618-26. 2008..Concentrations of most elements in the polar bears did not exceed toxicity thresholds, although Cd and Hg exceeded levels correlated with the formation of hepatic lesions in laboratory animals... - Acute enantioselective toxicity of fipronil and its desulfinyl photoproduct to Ceriodaphnia dubiaBrad J Konwick
Department of Environmental Health Science, University of Georgia, Athens, Georgia 30602, USA
Environ Toxicol Chem 24:2350-5. 2005..dubia; however, the consistency and relevancy of fipronil's enantiomer-specific activity at both acute and chronic levels of concern to additional target and nontarget species needs further consideration... - Metabolic turnover rates of carbon and nitrogen stable isotopes in captive juvenile snakesAaron T Fisk
Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602 2152, USA
Rapid Commun Mass Spectrom 23:319-26. 2009..Based on this study, interpretation of feeding ecology using stable isotopes is highly dependent on the kind of stable isotope, tissue, direction of diet switch (uptake versus elimination), and the growth rate of the animal... - Concentrations and patterns of perfluoroalkyl acids in Georgia, USA surface waters near and distant to a major use sourceBrad J Konwick
Warnell School of Forestry and Natural Resources, University of Georgia, Athens, Georgia 30602, USA
Environ Toxicol Chem 27:2011-8. 2008..Assuming that toxicity for all PFAAs quantified is equal to that of PFOS, the sum total PFAAs at two sites within the Conasauga River exceeded PFOS thresholds for aquatic and avian species, warranting additional research... - Essential and non-essential element concentrations in two sleeper shark species collected in arctic watersBailey C McMeans
Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON, Canada
Environ Pollut 148:281-90. 2007.... - Occurrence and biomagnification of polychlorinated naphthalenes and non- and mono-ortho PCBs in Lake Ontario sediment and biotaPaul A Helm
Environmental Monitoring and Reporting Branch, Ontario Ministry of the Environment, 125 Resources Road, Toronto, Ontario M9P 3V6, Canada
Environ Sci Technol 42:1024-31. 2008..PCNs contribute significantly to the burden of dioxin-like compounds in Lake Ontario biota, contributing between 12 and 22% of total PCN + PCB TEQ in lake trout and up to 69% in benthic organisms... - Regional and species specific bioaccumulation of major and trace elements in Arctic seabirdsKatrine Borgå
Norwegian Polar Institute, Polar Environmental Centre, N 9296 Tromsø, Norway
Environ Toxicol Chem 25:2927-36. 2006.... - Biotransformation of polychlorinated biphenyls (PCBs) and bioformation of hydroxylated PCBs in fishAndrea H Buckman
Department of Environmental Biology, University of Guelph, Guelph, Ont, Canada N1G 2W1
Aquat Toxicol 78:176-85. 2006..The results of this study demonstrate that laboratory held rainbow trout can biotransform a number of PCB congeners and that bioformation is likely an important source of OH-PCBs in wild salmonids of the Great Lakes... - Role of temperature and enzyme induction in the biotransformation of polychlorinated biphenyls and bioformation of hydroxylated polychlorinated biphenyls by rainbow trout (Oncorhynchus mykiss)Andrea H Buckman
Department of Environmental Biology, University of Guelph, Guelph, ON, Canada N1G 2W1
Environ Sci Technol 41:3856-63. 2007..The results of this study provide the first in vivo evidence that rainbow trout are responsive to CYP2B-like induction by PCBs and that this enzyme system can influence PCB concentrations and OH-PCB formation in fish... - Enantiomeric fractions of chiral polychlorinated biphenyls provide insights on biotransformation capacity of arctic biotaNicholas A Warner
Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
Environ Toxicol Chem 24:2763-7. 2005..This study demonstrates the utility of using chiral analysis of PCBs to investigate biotransformation within biota of arctic food webs... - Chlorinated hydrocarbon contaminants and metabolites in polar bears (Ursus maritimus) from Alaska, Canada, East Greenland, and Svalbard: 1996-2002Jonathan Verreault
University of Windsor, Great Lakes Institute for Environmental Research, Windsor, Canada, ON N9B 3P4
Sci Total Environ 351:369-90. 2005..In addition to continued biomonitoring, further research on health and population status is needed to evaluate the impact from chronic exposure of polar bear populations to CHCs and their metabolites... - Spatial trends and bioaccumulation of organochlorine pollutants in marine zooplankton from the Alaskan and Canadian ArcticPaul F Hoekstra
Department of Environmental Biology, University of Guelph, Ontario, Canada
Environ Toxicol Chem 21:575-83. 2002.... - Dietary accumulation and biochemical responses of juvenile rainbow trout (Oncorhynchus mykiss) to 3,3',4,4',5-pentachlorobiphenyl (PCB 126)Scott B Brown
Environment Canada, National Water Research Institute, 867 Lakeshore Blvd, PO Box 5050, Ont, L7R 4A6, Burlington, Canada
Aquat Toxicol 59:139-52. 2002..This indicates that the functional competences of the physiological factors associated with growth were maintained under the experimental conditions... - Hydroxylated PCBs and other chlorinated phenolic compounds in lake trout (Salvelinus namaycush) blood plasma from the Great Lakes regionLinda M Campbell
National Water Research Institute, Environment Canada, Burlington, Ontario L7R 4A6, Canada
Environ Sci Technol 37:1720-5. 2003..3 and 27.7 pg/g), and 4'-OH-CB208 (24.5 and 34.7 pg/g) were found in lake trout from Lake Ontario and Lake Superior, respectively. Future studies to delineate the sources and impacts of CPCs in the Great Lakes catchment are needed... - Organochlorine contaminants in seven species of Arctic seabirds from northern Baffin BayAndrea H Buckman
Department of Environmental Biology, University of Guelph, Guelph, ON, Canada N1G 2W1
Environ Pollut 128:327-38. 2004..Trophic level, migration, scavenging and biotransformation all play important roles in the OCs found in Arctic seabirds... - Bioaccumulation, biotransformation, and biochemical effects of brominated diphenyl ethers in juvenile lake trout (Salvelinus namaycush)Gregg T Tomy
Department of Fisheries and Oceans, Freshwater Institute, Winnipeg, Manitoba, R3T 2N6 Canada
Environ Sci Technol 38:1496-504. 2004.... - Toxicokinetics of three polychlorinated biphenyl technical mixtures in rainbow trout (Oncorhynchus mykiss)Andrea H Buckman
Department of Environmental Biology, University of Guelph, Guelph, Ontario, N1G 2W1 Canada
Environ Toxicol Chem 23:1725-36. 2004..Because t1/2s in this experiment were slower than t1/2s reported in other work, water temperature also may be an important factor in determining the t1/2s of all PCB congeners in fish... - Biological and chemical factors of importance in the bioaccumulation and trophic transfer of persistent organochlorine contaminants in Arctic marine food websKatrine Borgå
Norwegian Polar Institute, Polar Environmental Centre, N 9296 Tromsø, Norway
Environ Toxicol Chem 23:2367-85. 2004..This reduces biological validity of the models and may be particularly problematic in a highly seasonal environment, such as the Arctic Ocean... - Fluorinated organic compounds in an eastern Arctic marine food webGregg T Tomy
Department of Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, Manitoba R3T2N6, Canada
Environ Sci Technol 38:6475-81. 2004..The presence of perfluorinated compounds in seabirds and mammals provides evidence that trophic transfer is an important exposure route of these chemicals to Arctic biota... - Why do organochlorine differences between arctic regions vary among trophic levels?Katrine Borgå
Norwegian Polar Institute, N 9296 Tromsø, Norway
Environ Sci Technol 39:4343-52. 2005..Differences in the spatial trends of OCs between trophic levels in the Arctic are important for consideration when assessing regional differences in spatial and temporal trends of discontinued and current-use contaminants... - Mercury and other trace elements in a pelagic Arctic marine food web (Northwater Polynya, Baffin Bay)Linda M Campbell
National Water Research Institute, Environment Canada, 867 Lakeshore Road, Burlington, Ontario, Canada, L7R-4A6
Sci Total Environ 351:247-63. 2005.... - Examination of the bioaccumulation of halogenated dimethyl bipyrroles in an Arctic marine food web using stable nitrogen isotope analysisSheryl A Tittlemier
Centre for Analytical and Environmental Chemistry, Carleton University, Ottawa, Ontario, Canada
Environ Pollut 116:85-93. 2002..None of the four HDBP congeners in ringed seals followed the general trend of increasing concentration with trophic level, which was possibly due to an ability of the seals to metabolize HDBPs... - PCBs can diminish the influence of temperature on thyroid indices in rainbow trout (Oncorhynchus mykiss)Andrea H Buckman
Department of Environmental Biology, University of Guelph, Guelph, Ont, Canada
Aquat Toxicol 84:366-78. 2007.... - Variation in organochlorine bioaccumulation by a predatory fish; gender, geography, and data analysis methodsThomas A Johnston
Great Lakes Laboratory for Fisheries and Aquatic Sciences, Department of Fisheries and Oceans, Burlington, Ontario, Canada
Environ Sci Technol 36:4238-44. 2002..The gender composition of fish samples and the type and level of covariate used in statistical analyses should be considered in studies of spatiotemporal variation in organochlorine bioaccumulation in fish...