Publications
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Bottom trawl assessment of Lake Ontario prey fishes, 2019
Multi-agency, collaborative Lake Ontario bottom trawl surveys provide information for decision making related to Fish Community Objectives including predator-prey balance and understanding prey fish community diversity. In 2019, bottom trawl surveys in April (n = 252 tows) and October (n = 160 tows) sampled main lake and embayments at depths from 5–226 m. Combined, the surveys captured 283,383 fis
Authors
Brian C. Weidel, Brian O'Malley, Michael J. Connerton, Jeremy P. Holden, Christopher Osborne
2019 Lake Michigan Lake Trout Working Group Report
This report provides a review on the progression of lake trout (Salvelinus namaycush) rehabilitation towards meeting the Salmonine Fish Community Objectives (FCOs) for Lake Michigan (Eshenroder et. al. 1995) and the interim goal and evaluation objectives articulated in A Fisheries Management Implementation Strategy for the Rehabilitation of Lake Trout in Lake Michigan (hereafter the "Strategy"; De
Authors
Charles P. Madenjian, Charles R. Bronte, Rick Clark, Ben Dickinson, Kevin Donner, Roger Gordon, Dale Hanson, John Janssen, Jory Jonas, Matthew Kornis, Steve Lenart, Dan Makauskas, Erik Olsen, Becky Redman, Laura Schmidt, Jason Smith, Ted Treska
2019 Status of the Lake Ontario Lower Trophic Levels
Spring total phosphorus (TP) in 2019 was 3.2 µg/L (offshore) and 4.7 µg/L (nearshore), both all-time lows; however, there is no significant time trend in our data series (1995-2019 for nearshore; 2002-2019 for offshore). Apr/May – Oct mean TP concentrations were low at both nearshore and offshore locations (range, 3.7 – 6.5 µg/L). TP and SRP concentrations were not significantly different between
Authors
Kristen T. Holeck, Lars G. Rudstam, Christopher Hotaling, Dave Lemon, Web Pearsall, Jana Lantry, Mike Connerton, Chris Legard, Steve LaPan, Zy Biesinger, Brian F. Lantry, Brian C. Weidel, Brian O'Malley
Intraspecific and biogeographical variation in foliar fungal communities and pathogen damage of native and invasive Phragmites australis
AimRecent research has highlighted that the relationship between species interactions and latitude can differ between native and invasive plant taxa, generating biogeographical heterogeneity in community resistance to plant invasions. In the first study with foliar pathogens, we tested whether co‐occurring native and invasive lineages of common reed (Phragmites australis ) exhibit non‐parallel lat
Authors
Warwick J. Allen, Aaron Devries, Nicholas J. Bologna, Wesley A. Bickford, Kurt P. Kowalski, Laura A. Meyerson, James T. Cronin
Egg and larval collection methods affect spawning adult numbers inferred by pedigree analysis
Analytical methods that incorporate genetic data are increasingly used in monitoring and assessment programs for important rate functions of fish populations (e.g., recruitment). Because gear types vary in efficiencies and effective sampling areas, results from genetic‐based assessments likely differ depending on the sampling gear used to collect genotyped individuals; consequently, management dec
Authors
Robert D. Hunter, Edward F. Roseman, Nick M. Sard, Daniel B. Hayes, Travis O. Brenden, Robin L. DeBruyne, Kim T. Scribner
Genetic family reconstruction characterizes Lake Sturgeon use of newly constructed spawning habitat and larval dispersal
Since 2004, seven spawning reefs have been constructed in the St. Clair–Detroit River system to remediate lost spawning habitat and increase recruitment of Lake Sturgeon Acipenser fulvescens . Assessment of management actions by collecting and enumerating eggs and larvae provided evidence of spawning Lake Sturgeon and survival of eggs until larval dispersal at constructed reef sites. However, the
Authors
Robert D. Hunter, Edward F. Roseman, Nick M. Sard, Robin L. DeBruyne, Jinliang Wang, Kim T. Scribner
Detecting commonality in multidimensional fish movement histories using sequence analysis
BackgroundAcoustic telemetry, for tracking fish movement histories, is multidimensional capturing both spatial and temporal domains. Oftentimes, analyses of such data are limited to a single domain, one domain nested within the other, or ad hoc approaches that simultaneously consider both domains. Sequence analysis, on the other hand, offers a repeatable statistical framework that uses a sequence
Authors
Michael R. Lowe, Christopher Holbrook, Darryl W. Hondorp
A pheromone antagonist liberates female sea lamprey from a sensory trap to enable reliable communication
The evolution of male signals and female preferences remains a central question in the study of animal communication. The sensory trap model suggests males evolve signals that mimic cues used in nonsexual contexts and thus manipulate female behavior to generate mating opportunities. Much evidence supports the sensory trap model, but how females glean reliable information from both mimetic signals
Authors
Tyler John Buchinger, Anne M Scott, Skye D. Fissette, Cory Brant, Mar Huertas, Ke Li, Nicholas S. Johnson, Weiming Li
Niche partitioning among native ciscoes and nonnative Rainbow Smelt in Lake Superior
Several species of ciscoes Coregonus, subgenus Leucichthys that are native to the Laurentian Great Lakes are rare or extirpated. The restoration of Coregonus fishes is being actively pursued through stocking, and success may depend on the availability of unoccupied niche space. We described the spring–summer habitat occupancy and diets of three native cisco species (Bloater Coregonus hoyi, Cisco C
Authors
Caroline Lynn Rosinski, Mark Vinson, Daniel Yule
Interaction of bacterial communities and indicators of water quality in shoreline sand, sediment, and water of Lake Michigan
Shoreline sand harbors high concentrations of fecal indicator bacteria (FIB) that may be resuspended into the water column through washing and resuspension. Studies have explored coastal processes that influence this sand-water flux for FIB, but little is known about how microbial markers of contamination or the bacterial community interact in the sand-water interface. In this study, we take a thr
Authors
Meredith B. Nevers, Muruleedhara Byappanahalli, Cindy H. Nakatsu, Julie L. Kinzelman, Mantha S. Phanikumar, Dawn Shively, Ashley Spoljaric
American eels produce and release bile acids that vary across life stage
The American eel (Anguilla rostrata ) is an imperilled fish hypothesized to use conspecific cues, in part, to coordinate long‐distance migration during their multistage life history. Here, holding water and tissue from multiple American eel life stages was collected and analysed for the presence, profile and concentration of bile acids. Distinct bile acid profiles were identified in glass, elver,
Authors
Andrew K. Schmucker, Nicholas S. Johnson, Ugo Bussy, Ke Li, Heather S. Galbraith, Yu-Wen Chung-Davidson, Weiming Li
Does Lake Erie still have sufficient oxythermal habitat for cisco Coregonus artedi?
In Lake Erie, cisco Coregonus artedi once supported one of the most valuable freshwater fisheries on earth, yet overfishing caused their eventual extirpation from the lake. With warming lake temperatures, some have questioned whether Lake Erie still contains suitable oxythermal conditions for cisco. Using published oxythermal thresholds for cisco and oxythermal profiles from Lake Erie, we sought
Authors
Joseph Schmitt, Christoper S. Vandergoot, Brian P. O'Malley, Richard Kraus