Publications
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Concentration and biochemical gradients of seston in Lake Ontario Concentration and biochemical gradients of seston in Lake Ontario
Spatial variability in resource quantity and quality may have important implications for the distribution and productivity of primary consumers. In Lake Ontario, ecosystem characteristics suggest the potential for significant spatial heterogeneity in seston quantity and quality, particularly due to the potential for nearshore-offshore gradients in allochthonous nutrient supply, and the...
Authors
Patrick T. Kelly, Brian Weidel, Matthew R. Paufve, Brian P. O'Malley, James M. Watkins, Lars G. Rudstam, Stuart E. Jones
Continued feeding on Diporeia by deepwater sculpin in Lake Huron Continued feeding on Diporeia by deepwater sculpin in Lake Huron
Monitoring changes in diets of fish is essential to understanding how food web dynamics respond to changes in native prey abundances. In the Great Lakes, Diporeia, a benthic macroinvertebrate and primary food of native benthivores, declined following the introduction of invasive Dreissena mussels and these changes were reflected in fish diets. We examined the diets of deepwater sculpin
Authors
Patricia A. Thompson, Edward F. Roseman, Kevin M. Keeler, Timothy P. O’Brien, Dustin Bowser
Confirmation of cisco spawning in Chaumont Bay, Lake Ontario using an egg pumping device Confirmation of cisco spawning in Chaumont Bay, Lake Ontario using an egg pumping device
Cisco Coregonus artedi, a historically abundant and commercially important fish in the Great Lakes, have declined drastically in the last century due to the impacts of invasive species, overfishing, and habitat degradation. Chaumont Bay, New York is believed to contain one of the last remaining spawning populations of cisco in Lake Ontario although direct evidence of spawning has...
Authors
Ellen M. George, Wendylee Stott, Brian Young, Curtis T. Karboski, Darran L. Crabtree, Edward F. Roseman, Lars G. Rudstam
Spawning site fidelity and apparent annual survival of walleye (Sander vitreus) differ between a Lake Huron and Lake Erie tributary Spawning site fidelity and apparent annual survival of walleye (Sander vitreus) differ between a Lake Huron and Lake Erie tributary
Fidelity to spawning habitats can maximise reproductive success of fish by synchronising movements to sites of previous recruitment. To determine the role of reproductive fidelity in structuring walleye Sander vitreus populations in the Laurentian Great Lakes, we used acoustic telemetry combined with Cormack–Jolly–Seber capture–recapture models to estimate spawning site fidelity and...
Authors
Todd A. Hayden, Thomas Binder, Christopher M. Holbrook, Christopher Vandergoot, David G. Fielder, Steven J. Cooke, John M. Dettmers, Charles C. Krueger
Fungal endophytes from seeds of invasive, non-native Phragmites australis and their potential role in germination and seedling growth Fungal endophytes from seeds of invasive, non-native Phragmites australis and their potential role in germination and seedling growth
Background and aims We characterized fungal endophytes of seeds of invasive, non-native Phragmites from three sites in the Great Lakes region to determine if fungal symbiosis could contribute to invasiveness through their effects on seed germination and seedling growth. Methods Field-collected seeds were surface sterilized and plated on agar to culture endophytes for ITS sequencing...
Authors
Zackery R. C. Shearin, Matthew Filipek, Rushvi Desai, Wesley A. Bickford, Kurt P. Kowalski, Keith Clay
Rapid evolution meets invasive species control: The potential for pesticide resistance in sea lamprey Rapid evolution meets invasive species control: The potential for pesticide resistance in sea lamprey
Rapid evolution of pest, pathogen and wildlife populations can have undesirable effects; for example, when insects evolve resistance to pesticides or fishes evolve smaller body size in response to harvest. A destructive invasive species in the Laurentian Great Lakes, the sea lamprey (Petromyzon marinus) has been controlled with the pesticide 3-trifluoromethyl-4-nitrophenol (TFM) since...
Authors
Erin S. Dunlop, Robert L. McLaughlin, Jean V. Adams, Michael L. Jones, Oana Birceanu, Mark R. Christie, Lori A. Criger, Julia Hinderer, Robert M. Hollingworth, Nicholas S. Johnson, Stephen R. Lantz, Weiming Li, James R. Miller, Bruce J. Morrison, David Mota-Sanchez, Andrew M. Muir, Maria S. Sepulveda, Todd B. Steeves, Lisa Walter, Erin Westman, Isaac Wirgin, Michael P. Wilkie
Environmental Escherichia coli: Ecology and public health implications - A review Environmental Escherichia coli: Ecology and public health implications - A review
Escherichia coli is classified as a rod-shaped, Gram-negative bacterium in the family Enterobacteriaceae. The bacterium mainly inhabits the lower intestinal tract of warm-blooded animals, including humans, and is often discharged into the environment through feces or wastewater effluent. The presence of E. coli in environmental waters has long been considered as an indicator of recent...
Authors
Jeonghwan Jang, Hor-Gil Hur, Michael J. Sadowsky, Muruleedhara Byappanahalli, Tao Yan, Satoshi Ishii
Simulation of rapid ecological change in Lake Ontario Simulation of rapid ecological change in Lake Ontario
Lower trophic level processes are integral to proper functioning of large aquatic ecosystems and have been disturbed in Lake Ontario by various stressors including exotic species. The invasion of benthic habitats by dreissenid mussels has led to systemic changes and native faunal declines. Size-dependent physiological rates, spatial differences and connectivity, competition, and...
Authors
James E. McKenna, Marc Chalupnicki, Dawn E. Dittman, James M. Watkins
Movement patterns and spatial segregation of two populations of lake trout Salvelinus namaycush in Lake Huron Movement patterns and spatial segregation of two populations of lake trout Salvelinus namaycush in Lake Huron
Movement ecology is an important component of life history and population dynamics, and consequently its understanding can inform successful fishery management decision-making. While lake trout populations in Lake Huron have shown signs of recovery from near extinction in recent years, knowledge of their movement behavior remains incomplete. We used acoustic telemetry to describe and...
Authors
Thomas Binder, J. Ellen Marsden, Stephen Riley, James E. Johnson, Nicholas S. Johnson, Ji He, Mark P. Ebener, Christopher M. Holbrook, Roger A. Bergstedt, Charles R. Bronte, Todd A. Hayden, Charles C. Krueger
Test of a non-physical barrier consisting of light, sound, and bubble screen to block upstream movement of sea lamprey in an experimental raceway Test of a non-physical barrier consisting of light, sound, and bubble screen to block upstream movement of sea lamprey in an experimental raceway
Control of the invasive Sea Lamprey Petromyzon marinus is critical for management of commercial and recreational fisheries in the Laurentian Great Lakes. Use of physical barriers to block Sea Lampreys from spawning habitat is a major component of the control program. However, the resulting interruption of natural streamflow and blockage of nontarget species present substantial challenges
Authors
Scott M. Miehls, Nicholas S. Johnson, Pete J. Hrodey
Ecosystem services in the Great Lakes Ecosystem services in the Great Lakes
A comprehensive inventory of ecosystem services across the entire Great Lakes basin is currently lacking and is needed to make informed management decisions. A greater appreciation and understanding of ecosystem services, including both use and non-use services, may have avoided misguided resource management decisions in the past that resulted in negative legacies inherited by future...
Authors
Alan D. Steinman, Bradley J. Cardinale, Wayne R. Munns, Mary E. Ogdahl, David J. Allan, Ted Angadi, Sarah Bartlett, Kate A. Brauman, Muruleedhara Byappanahalli, Matt Doss, Diane Dupont, Annie Johns, Donna Kashian, Frank Lupi, Peter B. McIntyre, Todd Miller, Michael P. Moore, Rebecca Logsdon Muenich, Rajendra Poudel, James Price, Bill Provencher, Anne Rea, Jennifer Read, Steven Renzetti, Brent Sohngen, Erica Washburn
Community stability within the St. Marys River fish community: Evidence from trawl surveys Community stability within the St. Marys River fish community: Evidence from trawl surveys
A trawl survey was conducted in the Saint Marys River during 2010–2011 and we compared our results to a prior trawl survey conducted during 1979–1983 to look for long-term changes in the fish community, especially in terms of changes induced by invasive species. We found no substantive temporal differences in fish density, fish biomass, or fish diversity; lower trawl biomass during 2010...
Authors
Jeffrey S. Schaeffer, Anjanette K. Bowen, David G. Fielder