Publications
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Is sexual size dimorphism in walleye, Sander vitreus, a driver of seasonal movements in Lake Erie? Is sexual size dimorphism in walleye, Sander vitreus, a driver of seasonal movements in Lake Erie?
Walleye (Sander vitreus) are a sexually dimorphic species in which females are larger than males in adulthood. Walleye can also exhibit sex- and population-based differences in migration behavior. In Lake Erie, we used acoustic telemetry to test the prediction that female walleye exhibit larger broad-scale movements than males during the summer and autumn. This prediction was based on...
Authors
Christian J. Bihun, Matthew Faust, Richard Kraus, Thomas MacDougall, Jason Robinson, Christopher Vandergoot, Graham D. Raby
Evaluating how changing climate and water clarity can affect restoration of native coregonine fishes in midwestern lakes Evaluating how changing climate and water clarity can affect restoration of native coregonine fishes in midwestern lakes
In the upper midwestern United States, coregonine fishes (e.g., ciscoes and whitefishes) have provided a key food source for Indigenous peoples since time immemorial. In the last century, however, several anthropogenic stressors including overfishing, declining quality of key habitat (e.g., dams, algal blooms), and negative interactions with invasive species have led to declines in the...
Authors
David Bunnell, Nicole Lynn Berry, Martin Albert Simonson, Charles P. Madenjian, Kevin Keeler, Joseph Schmitt, Abigail Lynch, Gretchen Hansen, Erin P. Overholt, Peter Jacobson, Casey Schoenbeck, Craig E. Williamson, Tyler D. Ahrenstorff
Lake Superior fish community and fisheries, 2001–2022: An era of stability Lake Superior fish community and fisheries, 2001–2022: An era of stability
Lake Superior is the least anthropogenically impacted of the Laurentian Great Lakes ecosystems, yet dramatic changes to the fish community are evident. Previous published works chronicled those changes and the efforts to rehabilitate the fish community through the year 2000. Here, we review through the year 2022, where post-rehabilitation stability was driven by lean lake trout...
Authors
Cory A. Goldsworthy, Dray D. Carl, Shawn P. Sitar, Michael J. Seider, Mark R. Vinson, Ian C. Harding, Thomas C. Pratt, Paul P. Piszczek, Eric K. Berglund, Samuel B. Michaels, Jessica M. Barber
Food web structure of the Lake Superior fish community in 2021–2022 Food web structure of the Lake Superior fish community in 2021–2022
The trophic linkages and ecological requirements of the Lake Superior fish community have not been assessed on a whole lake scale in over a decade. Here, we investigated the trophic dynamics across multiple species and habitat zones of Lake Superior. From April to October of 2021 and 2022, a total of five piscivore, four planktivore, and six benthivore species were collected by region...
Authors
Ariel N. Edwards, Shawn P. Sitar, Ashley H. Moerke, Jonathon P. Doubek, Daniel L. Yule, Dray D. Carl, Cory A. Goldsworthy, Ian C. Harding, S. Ben Michaels, Eric K. Berglund, Seth A. Moore, Brandon S. Gerig
The relative influence of geographic and environmental factors on rare plant translocation outcomes The relative influence of geographic and environmental factors on rare plant translocation outcomes
Conservation translocations are an established method for reducing the extinction risk of plant species through intentional movement within or outside the indigenous range. Unsuitable environmental conditions at translocation recipient sites and a lack of understanding of species–environment relationships are often identified as critical barriers to translocation success. However...
Authors
Joe Bellis, Matthew A. Albrecht, Joyce Maschinski, Sarah E. Dalrymple, Matthew J. Keir, Timothy Chambers, Jennifer Possley, Edith D. Adkins, Elliott W. Parsons, Michael Kunz, Carrie Radcliffe, Emily Coffey, Thomas N. Kaye, Cheryl L. Peterson, David Aaron, Sterling A. Herron, Eric Menges, Timothy J. Bell, Michelle Coppoletta, Caityn Elam, Mceachern A. Kathryn, Paula Williamson, Deanna Boensch, Megan Bontrager, Breeden Cooper, Noah Frade, Doria R. Gordon, Steven O. Link, Tara Littlefield, Shelia Murray, Ryan O’Dell, Noel B. Pavlovic, Charlotte M. Reemts, David D. Taylor, Jonathan H. Titus, Priscilla J. Titus, Tina A. Stanley, Katherine D. Heineman
Understanding the influence of image enhancement on underwater object detection: A quantitative and qualitative study Understanding the influence of image enhancement on underwater object detection: A quantitative and qualitative study
Underwater image enhancement is often perceived as a disadvantageous process to object detection. We propose a novel analysis of the interactions between enhancement and detection, elaborating on the potential of enhancement to improve detection. In particular, we evaluate object detection performance for each individual image rather than across the entire set to allow a direct...
Authors
Ashraf Saleem, Ali Awad, Sidike Paheding, Evan Lucas, Timothy C. Havens, Peter C. Esselman
Fish-assemblage evaluation in the lower Sandusky River, Ohio, following dam removal Fish-assemblage evaluation in the lower Sandusky River, Ohio, following dam removal
The Sandusky River, Ohio, USA, has experienced more than a century of alterations, including dam implementation and removal, causing a cascade of habitat changes. The physical changes in the river led to establishment of several invasive species. Ten hoop-net sampling sites, spaced about 500 m apart were established in the river to monitor fish assemblage and their habitat preferences...
Authors
Kailee Amanda Schulz, Matthew Ross Acre, Andrew T. Mueller, James J. Wamboldt, Dustin Broaddus, Tyler Hessler, Tammy Michelle Wilson, Robert L. Mapes, Jon Amberg, Robin D. Calfee
Seasonal spatial ecology of Lake Trout in Lake Erie Seasonal spatial ecology of Lake Trout in Lake Erie
Objective Lake Trout Salvelinus namaycush are native coldwater apex predators that play an important role in maintaining ecosystem functionality and diversity in the Laurentian Great Lakes. Following population collapses, rehabilitation efforts were widely initiated in the Great Lakes to reestablish self‐sustaining Lake Trout populations. Lake Erie may pose a challenge to these...
Authors
Tyler Funnell, Travis Brenden, Richard Kraus, Tom MacDougall, James Markham, Charles Richard Murray, Jason Robinson, Christopher S. Vandergoot
Decision analysis of Integrated Pest Management: A case study on invasive sea lamprey in the Great Lakes Basin Decision analysis of Integrated Pest Management: A case study on invasive sea lamprey in the Great Lakes Basin
Integrated Pest Management (IPM) provides a powerful framework for addressing threats to human well-being caused by nuisance species including invasives. We examined the hypothesis that adaptive management could erode barriers to IPM implementation by developing a decision-analytic adaptive management framework for invasive sea lamprey (Petromyzon marinus) IPM in the Laurentian Great...
Authors
Sean Alois Lewandoski, Kelly Filer Robinson, Travis O. Brenden, Ryan Booth, Peter Hrodey, John B. Hume, Thomas C. Pratt, Anne M Scott, Matthew Symbal, C. Michael Wagner, Nicholas S. Johnson
Reconstructing half a century of coregonine recruitment reveals species-specific dynamics and synchrony across the Laurentian Great Lakes Reconstructing half a century of coregonine recruitment reveals species-specific dynamics and synchrony across the Laurentian Great Lakes
Understanding how multiple species and populations vary in their recruitment dynamics can elucidate the processes driving recruitment across space and time. Lake Whitefish (Coregonus clupeaformis) and Cisco (C. artedi) are socioecologically important fishes across their range; however, many Laurentian Great Lakes populations have experienced declining, poor, or sporadic recruitment in...
Authors
Taylor A. Brown, Lars G. Rudstam, Suresh A. Sethi, Paul Ripple, Jason Smith, Ted Treska, Christopher Hessell, Erik Olsen, Ji X. He, Jory Jonas, Benjamin J. Rook, Joshua Blankenheim, Sarah J.H. Beech, Erin Brown, Eric K. Berglund, H. Andrew Cook, Erin S. Dunlop, Stephen James, Steven A. Pothoven, Zach Amidon, John A. Sweka, Dray Carl, Scott Hansen, David B. Bunnell, Brian Weidel, Andrew Edgar Honsey
Electrofishing Sandusky River grass carp spawning grounds may disrupt spawning Electrofishing Sandusky River grass carp spawning grounds may disrupt spawning
Invasive grass carp Ctenopharyngodon idella spawning was confirmed in Lake Erie with the collection of fertilized eggs in the Sandusky River, Ohio in 2015. Managers responded with initiation of adult grass carp removal in 2017. Hydrodynamic modeling revealed a potential spawning location in downtown Fremont, Ohio (41.3455; −83.1110), which was supported by the presence of sexually mature...
Authors
Ryan E. Brown, Christine M. Mayer, Corbin David Hilling, Song S. Qian, James Roberts
Evaluating behavioral responses of spawning-phase Walleyes to odors of rivers and other Walleyes Evaluating behavioral responses of spawning-phase Walleyes to odors of rivers and other Walleyes
Many fish species show a remarkable ability to home to streams for spawning and fishery managers have applied that knowledge to restore or rehabilitate populations of some species. Walleye Sander vitreus show strong homing tendencies and the ability to select their natal river from other streams. The role of olfactory cues has been hypothesized but never tested in Walleye and many...
Authors
Tyler Buchinger, Troy Zorn, Nicholas S. Johnson, Weiming Li