Publications
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Balancing prey availability and predator consumption: A multispecies stock assessment for Lake Ontario
Trophic interactions are drivers of ecosystem change and stability, yet are often excluded from fishery assessment models, despite their potential capacity to improve estimates of species dynamics and future fishery sustainability. In Lake Ontario, recreational salmonine fisheries, including Chinook salmon (Oncorhynchus tshawytscha) and lake trout (Salvelinus namaycush), depend on a single prey sp
Authors
Kimberly B. Fitzpatrick, Brian C. Weidel, Michael J. Connerton, Jana R. Lantry, Jeremy P. Holden, Michael J. Yuille, Brian F. Lantry, Steven R. LaPan, Lars G. Rudstam, Patrick J. Sullivan, Travis O. Brenden, Suresh Sethi
Local diversity in phenological responses of migratory lake sturgeon to warm winters
Rich intraspecific diversity in traits that shape responses to environmental conditions implies that effects of climate change will differ within species or even populations. Nevertheless, few studies investigate how different groups within species respond to climatic fluctuations, and most risk assessments rely upon species-wide generalizations. We studied effects of among-year variation in air t
Authors
Tyler J. Buchinger, Darryl W. Hondorp, Charles C. Krueger
Bioaccumulation of perfluoroalkyl substances in a Lake Ontario food web
Per- and polyfluoroalkyl substances (PFAS) are a group of synthetic chemicals detected throughout the environment. To better understand the distribution of PFAS in an aquatic system (the Laurentian Great Lakes), stable isotope enrichment (δ13C and δ15N), fatty acid (FA) profiles, and PFAS were measured in various species from the Lake Ontario (LO) aquatic food web. Sampled organisms included top p
Authors
Junda Ren, Adam Point, Sadjad Fakouri Baygi, Sujan Fernando, Philip K. Hopke, Thomas M. Holsen, Brian F. Lantry, Brian C. Weidel, Bernard S. Crimmins
Microbial source tracking and evaluation of best management practices for restoring degraded beaches of Lake Michigan
Attempts to mitigate shoreline microbial contamination require a thorough understanding of pollutant sources, which often requires multiple years of data collection (e.g., point/nonpoint) and the interacting factors that influence water quality. Because restoration efforts can alter shoreline or beach morphology, revisiting source inputs is often necessary. Microbial source tracking (MST) using so
Authors
Meredith B. Nevers, Paul M. Buszka, Muruleedhara Byappanahalli, Travis Cole, Steven R. Corsi, P. Ryan Jackson, Julie L. Kinzelman, Cindy H Nakatsu, Mantha S. Phanikumar
Results of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020
Bloater, Coregonus hoyi, are deepwater planktivores native to the Laurentian Great Lakes and Lake Nipigon. Interpretations of commercial fishery time series suggest they were common in Lake Ontario through the early 1900s but by the 1950s were no longer captured by commercial fishers. Annual bottom trawl surveys that began in 1978 and sampled extensively across putative bloater habitat only yielde
Authors
Brian C. Weidel, Amanda Susanne Ackiss, Marc Chalupnicki, Michael Connerton, Steve Davis, John M. Dettmers, Timothy Drew, Aaron T. Fisk, Roger Gordon, S. Dale Hanson, Jeremy Holden, Mark E. Holey, James H. Johnson, Timothy B. Johnson, Colin Lake, Brian F. Lantry, Kevin K. Loftus, Gregg E. Mackey, James E. McKenna, Michael J. Millard, Scott P. Minihkeim, Brian O'Malley, Andrew C. Todd, Steven Lapan, Adam Rupnik
Depth drives growth dynamics of dreissenid mussels in Lake Ontario
Understanding dreissenid mussel population dynamics and their impacts on lake ecosystems requires quantifying individual growth across a range of habitats. Most dreissenid mussel growth rates have been estimated in nutrient rich or nearshore environments, but mussels have continued to expand into deep, cold, low-nutrient habitats of the Great Lakes. We measured annual quagga mussel (Dreissena rost
Authors
Ashley Elgin, Paul Glyshaw, Brian C. Weidel
Evaluation of post-stocking dispersal and mortality of juvenile lake trout Salvelinus namaycush in Lake Ontario using acoustic telemetry
Wild reproduction by stocked lake trout Salvelinus namaycush in Lake Ontario has yet to produce a self-sustaining population, requiring a reliance on stocking. Once released, age-1 juvenile lake trout are not typically surveyed until age-2, creating a gap in knowledge of fine-scale post-release behaviors. A method to track fine-scale movements and estimate mortality of juvenile lake trout could co
Authors
Alexander J. Gatch, Stacy L. Furgal, Dimitry Gorsky, J. Ellen Marsden, Zy F. Biesinger, Brian F. Lantry
An evaluation of fish spawning on degraded and remnant reefs in Saginaw Bay, Lake Huron
Saginaw Bay is a shallow, nutrient-rich embayment in Lake Huron that historically had a complex network of natural rocky reefs. These reef habitats were used as spawning and nursery areas for a variety of fish species, but decades of land-use related sedimentation caused many of these reefs to be degraded. Our study objectives were to analyze abiotic and biotic conditions on degraded and remnant r
Authors
N Kalejs, Mitchell T. Zischke, J. Beugly, P. Collingsworth, Edward F. Roseman, R. Douglas Hunter, D. Fielder, T. Hook
Pedigree analysis and estimates of effective breeding size characterize sea lamprey reproductive biology
The sea lamprey (Petromyzon marinus) is an invasive species in the Great Lakes and the focus of a large control and assessment program. Current assessment methods provide information on the census size of spawning adult sea lamprey in a small number of streams, but information characterizing reproductive success of spawning adults is rarely available. We used RAD-capture sequencing to genotype sin
Authors
Ellen M. Weise, Kim T. Scribner, Jean V. Adams, Olivia Boeberitz, Aaron K. Jubar, Gale Bravener, Nicholas S. Johnson, John D. Robinson
Estimation of lake-scale stock-recruitment models for Great Lakes sea lampreys
Understanding recruitment dynamics is an essential part of effective fisheries management, whether the focus is on conservation, harvest policy development, or invasive species control. We developed a model that estimates lake-wide Ricker stock-recruitment relations for invasive sea lampreys (Petromyzon marinus) in each of the five Laurentian Great Lakes to inform future control efforts. We fit ad
Authors
Jean V. Adams, Michael L. Jones
Status and trends of the Lake Huron prey fish community, 1976-2019
The USGS Great Lakes Science Center has assessed annual changes in the offshore prey fish community of Lake Huron since 1973. Assessments are based on a bottom trawl survey conducted in October of each year and an acoustics-midwater trawl survey, which began in 2004 and is conducted in September-October. Both surveys were completed in their entirety in 2019. Prey fish biomass in Lake Huron in 2019
Authors
Darryl W. Hondorp, Timothy P. O'Brien, Peter C. Esselman, Edward F. Roseman
Great Lakes lake trout thiamine monitoring program annual report
The U.S. Geological Survey’s Great Lakes Science Center (GLSC), Eastern Ecological Science Center, and Columbia Environmental Research Center (CERC), and the State University of New York (SUNY) Brockport have conducted in collaboration with partner agencies a cooperative program to monitor thiamine concentrations in lake trout eggs since the late 1990s. In 2021, egg thiamine concentrations were hi
Authors
Jacques Rinchard, Thomas Blowers, Brian F. Lantry