Publications
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Use of navigation channels by Lake Sturgeon: Does channelization increase vulnerability of fish to ship strikes?
Channelization for navigation and flood control has altered the hydrology and bathymetry of many large rivers with unknown consequences for fish species that undergo riverine migrations. In this study, we investigated whether altered flow distributions and bathymetry associated with channelization attracted migrating Lake Sturgeon (Acipenser fulvescens) into commercial navigation channels, potenti
Authors
Darryl W. Hondorp, David Bennion, Edward F. Roseman, Christopher Holbrook, James C. Boase, Justin A. Chiotti, Michael V. Thomas, Todd C. Wills, Richard Drouin, Steven T. Kessel, Charles C. Krueger
Assessment of PIT tag retention and post-tagging survival in metamorphosing juvenile Sea Lamprey
Background: Passive integrated transponder (PIT) tags have been used to document and monitor the movement or behavior of numerous species of fishes. Data on short-term and long-term survival and tag retention are needed before initiating studies using PIT tags on a new species or life stage. We evaluated the survival and tag retention of 153 metamorphosing juvenile Sea Lamprey Petromyzon marinus t
Authors
Lee G. Simard, V. Alex Sotola, J. Ellen Marsden, Scott M. Miehls
Deepwater sculpin status and recovery in Lake Ontario
Deepwater sculpin are important in oligotrophic lakes as one of the few fishes that use deep profundal habitats and link invertebrates in those habitats to piscivores. In Lake Ontario the species was once abundant, however drastic declines in the mid-1900s led some to suggest the species had been extirpated and ultimately led Canadian and U.S. agencies to elevate the species' conservation status.
Authors
Brian C. Weidel, Maureen Walsh, Michael J. Connerton, Brian F. Lantry, Jana R. Lantry, Jeremy P. Holden, Michael J. Yuille, James A. Hoyle
Life history constraints explain negative relationship between fish productivity and dissolved organic carbon in lakes
Resource availability constrains the life history strategies available to organisms and may thereby limit population growth rates and productivity. We used this conceptual framework to explore the mechanisms driving recently reported negative relationships between fish productivity and dissolved organic carbon (DOC) concentrations in lakes. We studied populations of bluegill (Lepomis macrochirus)
Authors
Nicola Craig, Stuart E. Jones, Brian C. Weidel, Christopher T. Solomon
Intra-reach headwater fish assemblage structure
Large-scale conservation efforts can take advantage of modern large databases and regional modeling and assessment methods. However, these broad-scale efforts often assume uniform average habitat conditions and/or species assemblages within stream reaches.
Authors
James E. McKenna
Estimating incision healing rate for surgically implanted acoustic transmitters from recaptured fish
Background Intracoelomic implantation of electronic tags has become a common method in fishery research, but rarely are fish examined by scientists after release to understand the extent that surgical incisions have healed. Walleye (Sander vitreus) are a valuable, highly exploited fishery resource in the Laurentian Great Lakes. Here, fishery capture of walleye with internal acoustic transmitters c
Authors
Abby Schoonyan, Richard T. Kraus, Matthew D. Faust, Christopher Vandergoot, Steven J. Cooke, H. Andrew Cook, Todd A. Hayden, Charles C. Krueger
Light climate and dissolved organic carbon concentration influence species-specific changes in fish zooplanktivory
Dissolved organic carbon (DOC) in lakes reduces light penetration and limits fish production in low nutrient lakes, reportedly via reduced primary and secondary production. Alternatively, DOC and light reductions could influence fish by altering their visual feeding. Previous studies report mixed effects of DOC on feeding rates of zooplanktivorous fish, but most investigators tested effects of a s
Authors
Brian C. Weidel, Katherine Baglini, Stuart E. Jones, Patrick T. Kelly, Christopher T. Solomon, Jacob A. Zwart
The contribution of lakes to global inland fisheries harvest
Freshwater ecosystems provide numerous services for communities worldwide, including irrigation, hydropower, and municipal water; however, the services provided by inland fisheries – nourishment, employment, and recreational opportunities – are often comparatively undervalued. We provide an independent estimate of global lake harvest to improve biological and socioeconomic assessments of inland fi
Authors
Andrew M. Deines, David B. Bunnell, Mark W. Rogers, David Bennion, Whitney Woelmer, Michael J. Sayers, Amanda G. Grimm, Robert A. Shuchman, Zachary B. Raymer, Colin N. Brooks, Justin G. Mychek-Londer, William W. Taylor, T. Douglas Beard
Use of electricity to sedate Lake Trout for intracoelomic implantation of electronic transmitters
Use of telemetry data to inform fisheries conservation and management is becoming increasingly common; as such, fish typically must be sedated before surgical implantation of transmitters into the coelom. Given that no widely available, immediate-release chemical sedative currently exists in North America, we investigated the feasibility of using electricity to sedate Lake Trout Salvelinus namaycu
Authors
Matthew D. Faust, Christopher Vandergoot, Eric T. Hostnik, Thomas R. Binder, Julia L. Mida Hinderer, Jessica T. Ives, Charles C. Krueger
The deep chlorophyll layer in Lake Ontario: Extent, mechanisms of formation, and abiotic predictors
Epilimnetic production has declined in Lake Ontario, but increased production in metalimnetic deep chlorophyll layers (DCLs) may compensate for these losses. We investigated the spatial and temporal extent of DCLs, the mechanisms driving DCL formation, and the use of physical variables for predicting the depth and concentration of the deep chlorophyll maximum (DCM) during April–September 2013. A D
Authors
Anne E. Scofield, James M. Watkins, Brian C. Weidel, Frederick J. Luckey, Lars G. Rudstam
Diet, feeding patterns, and prey selection of subyearling Atlantic salmon (Salmo salar) and subyearling chinook salmon (Oncorhynchus tshawytscha) in a tributary of Lake Ontario
Since juvenile Atlantic salmon (Salmo salar) and Chinook salmon (Oncorhynchus tshawytscha) occupy a similar habitat in Lake Ontario tributaries, we sought to determine the degree of diet similarity between these species in order to assess the potential for interspecific competition. Atlantic salmon, an historically important but currently extirpated component of the Lake Ontario fish community, ar
Authors
J. H. Johnson, K. J. Nash, R. A. Chiavelli, J. A. DiRado, G. E. Mackey, J. R. Knight, A. R. Diaz
Understanding ecosystem services adoption by natural resource managers and research ecologists
The ecosystem services (ES) paradigm has gained much traction as a natural resource management approach due to its comprehensive nature and ability to provide quantitative tools to improve decision-making. However, it is still uncertain whether and how practitioners have adopted the ES paradigm into their work and how this aligns with resource management information needs. To address this, we surv
Authors
Daniel Engel, Mary Anne Evans, Bobbi S. Low, Jeff Schaeffer