The Great Lakes Institute for Environmental Research (GLIER) is multidisciplinary with faculty and collaborators from many disciplines, including biology, geology, chemistry, engineering, marine biology, molecular biology, genetics and ecology.
Researchers at GLIER address complex environmental problems that cross conventional disciplinary boundaries such as the effects of multiple environmental stressors on large lakes, their watersheds and marine environments.
GLIER's multidisciplinary focus on research and graduate training has faculty and graduate students conducting research both locally within the Great Lakes Basin and around the world.
The institute has extensively equipped laboratories, core facilities, and dedicated research vessels.
GLIER researchers hold NSERC Canada Research Chairs in Great Lakes Research, Trophic Ecology, and Environmental Genomics, as well as a Department of Fisheries and Oceans Research Chair in Invasion Biology.
The Scientific Director of the Canadian Aquatic Invasive Species Network (CAISN) is a faculty member at GLIER.
Submissions from 2008
Geographic distribution of selected elements in the livers of polar bears from Greenland, Canada and the United States, Scott A. Rush, Katrine Borgå, Rune Dietz, Erik W. Born, Christian Sonne, Thomas Evans, Derek C.G. Muir, Robert J. Letcher, Ross J. Norstrom, and Aaron T. Fisk
Growth and survival differences among native, introduced and hybrid blue mussels (Mytilus spp.): genotype, environment and interaction effects, Jody L. Shields, Penny Barnes, and Daniel D. Heath
Fluxes of dissolved organic carbon, other nutrients and microbial communities in a water-filled treehole ecosystem, Ralf C.M. Verdonschot, Catherine M. Febria, and D. Dudley Williams
Submissions from 2007
Characterization of eight polymorphic microsatellite DNA markers for the greenside darter, Etheostoma blennioides (Percidae), Courtney L. Beneteau, Nicholas E. Mandrak, and Daniel D. Heath
Luminescent whole-cell cyanobacterial bioreporter for measuring Fe availability in diverse marine environments, Ramakrishna Boyanapalli, George S. Bullerjahn, Christa Pohl, Peter L. Croot, Philip W. Boyd, and R. Michael L. McKay
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, Scott B. Brown, Jeff Small, Derek C.G. Muir, Joanne Parrott, Keith R. Solomon, and Aaron T. Fisk
PCBs can diminish the influence of temperature on thyroid indices in rainbow trout (Oncorhynchus mykiss), Andrea H. Buckman, Aaron T. Fisk, Joanne L. Parrott, Keith R. Solomon, and Scott B. Brown
PCR-RFLP markers detect 29 mitochondrial haplotypes in Pacific lamprey (Entosphenus tridentatus), M. F. Docker, G. R. Haas, H. Goodman, S. B. Reids, and D. D. Heath
Ten polymorphic microsatellite markers in the invasive round goby (Neogobius melanostomus) and cross-species amplification, Bradley A. Dufour, Terry M. Hogan, and Daniel D. Heath
Effect of DNA extraction on ageing success in coral trout (Plectropomus leopardus, Lacepède) otoliths, D. Heath, D. C. Lou, J. Ovenden, and G. A. Begg
Nitrate utilization by phytoplankton in Lake Superior is impaired by low nutrient (P, Fe) availability and seasonal light limitation - A cyanobacterial bioreporter study, Natalia V. Ivanikova, R. Michael L. McKay, George S. Bullerjahn, and Robert W. Sterner
Lake superior supports novel clusters of cyanobacterial picoplankton, Natalia V. Ivanikova, Linda C. Popels, R. Michael L. McKay, and George S. Bullerjahn
Dosage effects on heritability and maternal effects in diploid and triploid Chinook salmon (Oncorhynchus tshawytscha), R. M. Johnson, J. M. Shrimpton, G. K. Cho, and D. D. Heath
Essential and non-essential element concentrations in two sleeper shark species collected in arctic waters, Bailey C. McMeans, Katrine Borgå, William R. Bechtol, David Higginbotham, and Aaron T. Fisk
Genetic quality and offspring performance in Chinook salmon: implications for supportive breeding, Trevor E. Pitcher and Bryan D. Neff
Sexual colouration and sperm traits in guppies, Trevor E. Pitcher, F. H. Rodd, and L. Rowe
Biochemical and molecular differences in diploid and triploid ocean-type chinook salmon (Oncorhynchus tshawytscha) smolts, J. Mark Shrimpton, Aurora M.C. Sentlinger, John W. Heath, Robert H. Devlin, and Daniel D. Heath
Environment-specific heterozygote deficiency and developmental instability in hybrid Mytilus, Stevan A. Springer and Daniel D. Heath
Increasing stoichiometric imbalance in North America's largest lake: Nitrification in Lake Superior, Robert W. Sterner, Eleni Anagnostou, Sandra Brovold, George S. Bullerjahn, Jacques C. Finlay, Sanjeev Kumar, Michael L. McKay, and Robert M. Sherrell
Polyaromatic hydrocarbons, chlorinated and brominated organic contaminants as tracers of feeding ecology in polar benthic amphipods, Tore C. Svendsen, Lionel Camus, Barry Hargrave, Aaron Fisk, Derek C.G. Muir, and Katrine Borgå
Characterization of one trinucleotide and six dinucleotide microsatellite markers in bicolor damselfish, Stegastes partitus, a common coral reef fish, Roger J. Thiessen and Daniel D. Heath
Compositional and fluorescence characteristics of the giant diatom Ethmodiscus along a 3000 km transect (28°N) in the central North Pacific gyre, Tracy A. Villareal, R. M.L. McKay, M. M.D. Al-Rshaidat, R. Boyanapalli, and R. M. Sherrell
Corrigendum to "Compositional and fluorescence characteristics of the giant diatom Ethmodiscus along a 3000 km transect (28°N) in the central North Pacific gyre" (DOI:10.1016/j.dsr.2007.04.018), Tracy A. Villareal, R. M.L. McKay, M. M.D. Al-Rshaidat, R. Boyanapalli, and R. M. Sherrell
Characterization of four tetranucleotide and six dinucleotide microsatellite markers for use in the tropical freshwater fish Telmatherina antoniae and related species, Ryan P. Walter, Jennifer R. Ovenden, and Daniel D. Heath
Submissions from 2006
Regional and species specific bioaccumulation of major and trace elements in arctic seabirds, Katrine Borgå, Linda Campbell, Geir W. Gabrielsen, Ross J. Norstrom, Derek C.G. Muir, and Aaron T. Fisk
Biotransformation of polychlorinated biphenyls (PCBs) and bioformation of hydroxylated PCBs in fish, Andrea H. Buckman, Charles S. Wong, Elaine A. Chow, Scott B. Brown, Keith R. Solomon, and Aaron T. Fisk
Inbreeding, outbreeding and environmental effects on genetic diversity in 46 walleye (Sander vitreus) populations, Christopher J. Cena, George E. Morgan, Michael D. Malette, and Daniel D. Heath
Patterns of hydrogen peroxide among lakes of the Mackenzie Delta, western Canadian Arctic, Catherine M. Febria, Lance F.W. Lesack, Jolie A.L. Gareis, and Max L. Bothwell
Optimization of iron-dependent cyanobacterial (Synechococcus, Cyanophyceae) bioreporters to measure iron bioavailability, Christel S. Hassler, Michael R. Twiss, R. Michael L. McKay, and George S. Bullerjahn
Population structure and divergence using microsatellite and gene locus markers in Chinook salmon (Oncorhynchus tshawytscha) populations, Daniel D. Heath, J. Mark Shrimpton, Russell I. Hepburn, Sara K. Jamieson, Sarah K. Brode, and Margaret F. Docker
Applications, considerations, and sources of uncertainty when using stable isotope analysis in ecotoxicology, Timothy D. Jardine, Karen A. Kidd, and Aaron T. Fisk
Erratum: Acute enantioselective toxicity of fipronil and its desulfinyl photoproduct to Ceriodaphnia dubia (Environmental Toxicology and Chemistry (2005) 24 (2350-2355)), B. J. Konwick, A. T. Fisk, A. W. Garrison, J. K. Avants, and M. C. Black
Bioaccumulation and biotransformation of chiral triazole fungicides in rainbow trout (Oncorhynchus mykiss), Brad J. Konwick, Arthur W. Garrison, Jimmy K. Avants, and Aaron T. Fisk
Bioaccumulation, biotransformation, and metabolite formation of fipronil and chiral legacy pesticides in rainbow trout, Brad J. Konwick, Arthur W. Garrison, Marsha C. Black, Jimmy K. Avants, and Aaron T. Fisk
Submissions from 2005
Hybridization dynamics between sympatric species of trout: loss of reproductive isolation, C. M. Bettles, M. F. Docker, B. Dufour, and D. D. Heath
Bioaccumulation factors for PCBs revisited, Katrine Borgå, Aaron T. Fisk, Barry Hargrave, Paul F. Hoekstra, Deborah Swackhamer, and Derek C.G. Muir
Why do organochlorine differences between arctic regions vary among trophic levels?, Katrine Borgå, Geir Wing Gabrielsen, Janneche Utne Skaare, Lars Kleivane, Ross J. Norstrom, and Aaron T. Fisk
The evolution and termination of an iron-induced mesoscale bloom in the northeast subarctic Pacific, Philip W. Boyd, Robert Strzepek, Shigenobu Takeda, George Jackson, C. S. Wong, R. Mike McKay, Cliff Law, Hiroshi Kiyosawa, Hiroaki Saito, Nelson Sherry, Keith Johnson, Jim Gower, and Neelam Ramaiah
FeCycle: Attempting an iron biogeochemical budget from a mesoscale SF6 tracer experiment in unperturbed low iron waters, P. W. Boyd, C. S. Law, D. A. Hutchins, E. R. Abraham, P. L. Croot, M. Ellwood, R. D. Frew, M. Hadfield, J. Hall, S. Handy, C. Hare, J. Higgins, P. Hill, K. A. Hunter, K. LeBlanc, M. T. Maldonado, R. M. McKay, and C. Mioni
Persistent organic pollutants and mercury in marine biota of the Canadian Arctic: An overview of spatial and temporal trends, B. M. Braune, P. M. Outridge, A. T. Fisk, D. C.G. Muir, P. A. Helm, K. Hobbs, P. F. Hoekstra, Z. A. Kuzyk, M. Kwan, R. J. Letcher, W. L. Lockhart, R. J. Norstrom, G. A. Stern, and I. Stirling
Evidence for biomagnification of rubidium in freshwater and marine food webs, Linda M. Campbell, Aaron T. Fisk, Xiaowa Wang, Günter Köck, and Derek C.G. Muir
Mercury and other trace elements in a pelagic Arctic marine food web (Northwater Polynya, Baffin Bay), Linda M. Campbell, Ross J. Norstrom, Keith A. Hobson, Derek C.G. Muir, Sean Backus, and Aaron T. Fisk
Seasonal abundance and prey selection of the nymphs of three sympatric species of Sympetrum (Odonata: Libellulidae) in an intermittent pond, Catherine Febria, A. Katarina Magnusson, and D. Dudley Williams
An assessment of the toxicological significance of anthropogenic contaminants in Canadian arctic wildlife, Aaron T. Fisk, Cynthia A. De Wit, Mark Wayland, Zou Zou Kuzyk, Neil Burgess, Robert Letcher, Birgit Braune, Ross Norstrom, Susan Polischuk Blum, Courtney Sandau, Elisabeth Lie, Hans Jørgen S. Larsen, Janneche Utne Skaare, and Derek C.G. Muir
Polymorphic microsatellite loci for the masked goby, Coryphopterus personatus (Gobiidae), Russell I. Hepburn, Emilio P. Mottillo, Paul Bentzen, and Daniel D. Heath
Construction and characterization of a cyanobacterial bioreporter capable of assessing nitrate assimilatory capacity in freshwaters, Natalia V. Ivanikova, R. Michael L. McKay, and George S. Bullerjahn
Acute enantioselective toxicity of fipronil and its desulfinyl photoproduct to Ceriodaphnia dubia, Brad J. Konwick, Aaron T. Fisk, Arthur W. Garrison, Jimmy K. Avants, and Marsha C. Black
Determination of carotenoids and all-trans-retinol in fish eggs by liquid chromatography–electrospray ionization–tandem mass spectrometry, Hongxia Li, Selene Tyndale, Daniel D. Heath, and Robert J. Letcher
Stable isotopes from multiple tissues reveal diet switching in sharks, M. Aaron MacNeil, Gregory B. Skomal, and Aaron T. Fisk
Bioavailable iron in oligotrophic Lake Superior assessed using biological reporters, R. M.L. Mckay, David Porta, George S. Bullerjahn, Mamoon M.D. Al-Rshaidat, Jeffrey A. Klimowicz, Robert W. Sterner, Tanya M. Smutka, Erik T. Brown, and Robert M. Sherrell
Impact of phytoplankton on the biogeochemical cycling of iron in subantarctic waters southeast of New Zealand during FeCycle, R. M.L. McKay, S. W. Wilhelm, J. Hall, D. A. Hutchins, M. M.D. Al-Rshaidat, C. E. Mioni, S. Pickmere, D. Porta, and P. W. Boyd
Tracking changes in bioavailable Fe within high-nitrate low-chlorophyll oceanic waters: A first estimate using a heterotrophic bacterial bioreporter, Cécile E. Mioni, Sara M. Handy, Michael J. Ellwood, Michael R. Twiss, R. Michael L. McKay, Philip W. Boyd, and Steven W. Wilhelm
Determination of bioavailable Fe in Lake Erie using a luminescent cyanobacterial bioreporter, David Porta, George S. Bullerjahn, Michael R. Twiss, Steven W. Wilhelm, Leo Poorvin, and R. Michael L. McKay
Trifluoroacetate profiles in the Arctic, Atlantic, and Pacific Oceans, B. F. Scott, R. W. Macdonald, K. Kannan, A. Fisk, A. Witter, N. Yamashita, L. Durham, C. Spencer, and D. C.G. Muir
Field investigations of trace metal effects on lake erie phytoplankton productivity, Michael R. Twiss, Sandra P. Gouvêa, Richard A. Bourbonniere, R. Michael L. McKay, and Steven W. Wilhelm
Chlorinated hydrocarbon contaminants and metabolites in polar bears (Ursus maritimus) from Alaska, Canada, East Greenland, and Svalbard: 1996-2002, Jonathan Verreault, Derek C.G. Muir, Ross J. Norstrom, Ian Stirling, Aaron T. Fisk, Geir W. Gabrielsen, Andrew E. Derocher, Thomas J. Evans, Rune Dietz, Christian Sonne, Gregory M. Sandala, Wouter Gebbink, Frank F. Riget, Erik W. Born, Mitch K. Taylor, John Nagy, and Robert J. Letcher
Enantiomeric fractions of chiral polychlorinated biphenyls provide insights on biotransformation capacity of arctic biota, Nicholas A. Warner, Ross J. Norstrom, Charles S. Wong, and Aaron T. Fisk
Submissions from 2004
Biological and chemical factors of importance in the bioaccumulation and trophic transfer of persistent organochlorine contaminants in arctic marine food webs, Katrine Borgå, Aaron T. Fisk, Paul F. Hoekstra, and Derek C.G. Muir
The decline and fate of an iron-induced subarctic phytoplankton bloom, Philip W. Boyd, Cliff S. Law, C. S. Wong, Yukihiro Nojiri, Atsushi Tsuda, Maurice Levasseur, Shigenoba Takeda, Richard Rivkin, Paul J. Harrison, Robert Strzepek, Jim Gower, R. Mike McKay, Edward Abraham, Mike Arychuk, Janet Barwell-Clarke, William Crawford, David Crawford, and Michelle Hale
Performance and heterosis in farmed and wild Chinook salmon (Oncorhynchus tshawytscha) hybrid and purebred crosses, Colleen A. Bryden, John W. Heath, and Daniel D. Heath
Toxicokinetics of three polychlorinated biphenyl technical mixtures in rainbow trout (Oncorhynchus mykiss), Andrea H. Buckman, Scott B. Brown, Paul F. Hoekstra, Keith R. Solomon, and Aaron T. Fisk
Organochlorine contaminants in seven species of Arctic seabirds from northern Baffin Bay, Andrea H. Buckman, Ross J. Norstrom, Keith A. Hobson, Nina J. Karnovsky, Jason Duffe, and Aaron T. Fisk
Microbial distributions and the impact of phosphorus on bacterial activity in Lake Erie, Jennifer M. DeBruyn, Justine A. Leigh-Bell, R. Michael L. McKay, Richard A. Bourbonniere, and Steven W. Wilhelm
Family, induction (heat- and pressure-shock) and interaction effects on the performance of diploid and triploid chinook salmon (Oncorhynchus tshawytscha), Rachel M. Johnson, J. Mark Shrimpton, John W. Heath, and Daniel D. Heath
Consideration of the bioavailability of iron in the North American Great Lakes: Development of novel approaches toward understanding iron biogeochemistry, R. Michael L. McKay, George S. Bullerjahn, David Porta, Erik T. Brown, Robert M. Sherrell, Tanya M. Smutka, Robert W. Sterner, Michael R. Twiss, and Steven W. Wilhelm
Phosphorus and trace metal limitation of algae and bacteria in Lake Superior, Robert W. Sterner, Tanya M. Smutka, R. Michael L. McKay, Qin Xiaoming, Erik T. Brown, and Robert M. Sherrell
Fluorinated organic compounds in an Eastern arctic marine food web, Gregg T. Tomy, Wes Budakowski, Thor Halldorson, Paul A. Helm, Gary A. Stern, Ken Friesen, Karen Pepper, Sheryl A. Tittlemier, and Aaron T. Fisk
Bioaccumulation, Biotransformation, and Biochemical Effects of Brominated Diphenyl Ethers in Juvenile Lake Trout (Salvelinus namaycush), Gregg T. Tomy, Vince P. Palace, Thor Halldorson, Eric Braekevelt, Robert Danell, Kerry Wautier, Bob Evans, Lyndon Brinkworth, and Aaron T. Fisk
Sensitivity of phytoplankton to copper in Lake Superior, Michael R. Twiss, Kim J. Rattan, Robert M. Sherrell, and R. Michael L. McKay
Phycocyanin detection from LANDSAT TM data for mapping cyanobacterial blooms in Lake Erie, Robert K. Vincent, Xiaoming Qin, R. Michael L. McKay, Jeffrey Miner, Kevin Czajkowski, Jeffrey Savino, and Thomas Bridgeman
What causes the decrease in haematocrit during egg production?, T. D. Williams, W. O. Challenger, J. K. Christians, M. Evanson, O. Love, and F. Vezina
Submissions from 2003
Hydroxylated PCBs and other chlorinated phenolic compounds in lake trout (Salvelinus namaycush) blood plasma from the Great Lakes region, Linda M. Campbell, Derek C.G. Muir, D. Mike Whittle, Sean Backus, Ross J. Norstrom, and Aaron T. Fisk
Erosion of interspecific reproductive barriers resulting from hatchery supplementation of rainbow trout sympatric with cutthroat trout, Margaret F. Docker, Angie Dale, and Daniel D. Heath
Genetic comparison between sympatric anadromous steelhead and freshwater resident rainbow trout in British Columbia, Canada, Margaret F. Docker and Daniel D. Heath
Expression of the iron-responsive irpA gene from the cyanobacterium Synechococcus sp. strain PCC 7942, Kathryn A. Durham, David Porta, R. Michael L. McKay, and George S. Bullerjahn
Bimodal run distribution in a northern population of sockeye salmon (Oncorhynchus nerka): life history and genetic analysis on a temporal scale, E. K. Fillatre, P. Etherton, and D. D. Heath
Biomagnification (multiple letters), Aaron T. Fisk, Paul F. Hoekstra, Katrine Borgå, Derek C.G. Muir, and J. S. Gray
Influence of habitat, trophic ecology and lipids on, and spatial trends of, organochlorine contaminants in Arctic marine invertebrates, Aaron T. Fisk, Paul F. Hoekstra, Jean Marc Gagnon, Jason Duffe, Ross J. Norstrom, Keith A. Hobson, Michael Kwan, and Derek C.G. Muir
Response to comment on “Rapid evolution of egg size in captive salmon” (I), Charles W. Fox and Daniel D. Heath
Rapid evolution of egg size in captive salmon, Daniel D. Heath, John W. Heath, Colleen A. Bryden, Rachel M. Johnson, and Charles W. Fox
Response to comment on “Rapid evolution of egg size in captive salmon” (II), Daniel D. Heath, Jordi Moya-Larano, and Charles W. Fox
Trophic transfer of persistent organochlorine contaminants (OCs) within an Arctic marine food web from the southern Beaufort-Chukchi Seas, P. F. Hoekstra, T. M. O'Hara, A. T. Fisk, K. Borgå, K. R. Solomon, and D. C.G. Muir
Utility of genetically based health indicators for selection purposes in captive‐reared chinook salmon, Oncorhynchus tshawytscha, Rachel M. Johnson, Colleen A. Bryden, and Daniel D. Heath
Physiological and biochemical response of freshwater cryptomonads (Cryptophyceae) to Fe deficiency, Xia Li, Qin Xiaoming, and R. Michael L. McKay
Physiological characterization of a Synechococcus sp. (Cyanophyceae) strain PCC 7942 iron-dependent bioreporter for freshwater environments, David Porta, George S. Bullerjahn, Kathryn A. Durham, Steven W. Wilhelm, Michael R. Twiss, and R. Michael L. McKay
Census vs. effective population size in chinook salmon: large- and small-scale environmental perturbation effects, J. Mark Shrimpton and Daniel D. Heath
Effect of phosphorus amendments on present day plankton communities in pelagic Lake Erie, Steven W. Wilhelm, Jennifer M. DeBruyn, Osnat Gillor, Michael R. Twiss, Kasey Livingston, Richard A. Bourbonniere, Lisa D. Pickell, Charles G. Trick, Amanda L. Dean, and R. Michael L. McKay
Survival and growth of local and transplanted blue mussels (Mytilus trossulus, Lamark), Jenia F. Yanick, John W. Heath, and Daniel D. Heath
Submissions from 2002
Dietary accumulation and biochemical responses of juvenile rainbow trout (Oncorhynchus mykiss) to 3,3′,4,4′,5-pentachlorobiphenyl (PCB 126), Scott B. Brown, Aaron T. Fisk, Mitra Brown, Maria Villella, Derek C.G. Muir, Robert E. Evans, W. Lyle Lockhart, Donald A. Metner, and H. Megan Cooley
Electroshocking influences chinook salmon egg survival and juvenile physiology and immunology, Grace K. Cho, John W. Heath, and Daniel D. Heath
PCR-based markers detect genetic variation at growth and immune function-related loci in chinook salmon (Oncorhynchus tshawytscha), Margaret F. Docker and Daniel D. Heath
Construction and initial characterization of a luminescent Synechococcus sp. PCC 7942 Fe-dependent bioreporter, Kathryn A. Durham, David Porta, Michael R. Twiss, R. Michael L. McKay, and George S. Bullerjahn
Using anthropogenic contaminants and stable isotopes to assess the feeding ecology of Greenland sharks, Aaron T. Fisk, Sheryl A. Tittlemier, Jennifer C. Pranschke, and Ross J. Norstrom
Persistent organochlorine contaminants and enantiomeric signatures of chiral pollutants in ringed seals (Phoca hispida) collected on the east and west side of the Northwater Polynya, Canadian Arctic, A. T. Fisk, M. Holst, K. A. Hobson, J. Duffe, J. Moisey, and R. J. Norstrom
Relationships between heterozygosity, allelic distance (d2) and reproductive traits in chinook salmon, Oncorhynchus tshawytscha, Daniel D. Heath, Colleen A. Bryden, J. Mark Shrimpton, George K. Iwama, Joanne Kelly, and John W. Heath
Temporal change in genetic structure and effective population size in three steelhead trout (Oncorhynchus mykiss), Daniel D. Heath, Christopher Busch, Joanne Kelly, and Dana Y. Atagi
Heritability and Y-chromosome influence in the jack male life history of chinook salmon (Oncorhynchus tshawytscha), D. D. Heath, L. Rankin, J. W. Heath, and J. M. Shrimpton
A stable isotope (δ13C, δ15N) model for the North Water food web: Implications for evaluating trophodynamics and the flow of energy and contaminants, Keith A. Hobson, Aaron Fisk, Nina Karnovsky, Meike Holst, Jean Marc Gagnon, and Martin Fortier
Spatial trends and bioaccumulation of organochlorine pollutants in marine zooplankton from the Alaskan and Canadian Arctic, Paul F. Hoekstra, Todd M. O'Hara, Camilla Teixeira, Sean Backus, Aaron T. Fisk, and Derek C.G. Muir
Molecular assessment of the potential for in situ bioremediation of PCBs from aquatic sediments, Matthew J. Hoostal, George S. Bullerjahn, and R. Michael L. McKay