Publications
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Ecosystem change and population declines in gulls: Shifting baseline considerations for assessing ecological integrity of protected areas
In Lake Superior's Pukaskwa National Park (PNP) in northern Ontario, Canada, herring gull (Larus argentatus) population size is used as an indicator of ecological integrity. Since the 1970s, gull populations have declined by 70% suggesting deteriorating park conditions. However, most other rated park indicators show stable or positive trends. Here, we focus on reconciling these seemingly disparate
Authors
Bruce Laurich, Christine Drake, Owen Gorman, Courtney Ivrine, Jenna MacLaurin, Chloe Chartrand, Craig E. Hebert
Factors affecting post-release survival of coded-wire tagged Lake Trout Salvelinus namaycush in Lake Michigan at four historical spawning locations
Since the 1950s, fishery agencies on Lake Michigan have pursued Lake Trout Salvelinus namaycush rehabilitation through Sea Lamprey Petromyzon marinus control, harvest regulations, and by stocking millions of fish annually. Stocking was prioritized at four historically important spawning locations beginning in 1985, and coded wire tags (CWTs) were used to help evaluate performance. We used data f
Authors
Matthew S. Kornis, Charles R. Bronte, Mark E. Holey, S. Dale Hanson, Theodore J. Treska, Jory L. Jonas, Charles P. Madenjian, Randall M. Claramunt, Steven R. Robillard, Brian Breidert, Kevin C. Donner, Stephen J. Lenart, Archie W. Martell, Patrick C. McKee, Erik J. Olson
Growth and energy budget of Northern Snakehead Channa argus in relation to ration
Northern Snakehead Channa argus weighing 188.54+13.80 g were fed live Oriental Weatherfish Misgurnus anguillicaudatus at five rations (starvation, 1, 2, 4% body weight per day and satiation) at 28 oC under laboratory conditions to determine its growth and energy budget in relation to ration. The specific growth rate increased linearly with increasing ration and food conversion efficiencies also te
Authors
Jiashou Liu, Tangling Zhang, Duane Chapman
Assessment of larval fish assemblages and nursery habitat in the St. Clair River delta
The St. Clair River delta, part of the St. Clair-Detroit River System (SCDRS), is the most fished coastal wetland area in the Laurentian Great Lakes and provides nursery habitat for a variety of fish species; however, few large-scale surveys of larval fish have been performed within the delta since the 1980s. Larval fish, zooplankton, and aquatic plants were sampled at 20 sites from May through Ju
Authors
Taaja Tucker, Robin L . DeBruyne, Edward F. Roseman, Douglas Larson, A. Scott McNaught
A space-time geostatistical model for probabilistic estimation of harmful algal bloom biomass and areal extent
Harmful algal blooms (HABs) have been increasing in intensity across many waterbodies worldwide, including the western basin of Lake Erie. Substantial efforts have been made to track these blooms using in situ sampling and remote sensing. However, such measurements do not fully capture HAB spatial and temporal dynamics due to the limitations of discrete shipboard sampling over large areas and the
Authors
Shiqi Fang, Dario Del Giudice, Donald Scavia, Caren E. Binding, Thomas B. Bridgeman, Justin D. Chaffin, Mary Anne Evans, Joseph Guinness, Thomas H. Johengen, Daniel R Obenour
Shifting diets of Lake Trout in northeastern Lake Michigan
Prey fish communities in Lake Michigan have been steadily changing, characterized by declines in both the quantity and quality of Alewife Alosa pseudoharengus. To evaluate concurrent changes in the diet of Lake Trout Salvelinus namaycush in northeastern Lake Michigan, we analyzed stomach contents of Lake Trout caught during gill‐net surveys and fishing tournaments from May through October 2016. We
Authors
Miles K. Luo, Charles P. Madenjian, James S. Diana, Matthew S. Kornis, Charles R. Bronte
Optimum electrofishing waveforms and parameters to induce a capture-prone response in juvenile Grass Carp
Grass Carp (Ctenopharyngodon idella) are a non-native species to North America that were first introduced for vegetation control in the 1960s. However, wild-reproducing Grass Carp can negatively impact aquatic habitats and aquatic communities by consuming substantial amounts of aquatic vegetation and increasing turbidity. Numerous fisheries techniques have been used in an attempt to control or e
Authors
Andrew S Briggs, Jan C. Dean, James C. Boase, Patrick Kočovský, James A. Luoma
Growth of hatchery‐reared chinook salmon in Lakes Michigan and Huron exhibits limited spatial variation but Is temporally linked to alewife abundance
Chinook Salmon Oncorhynchus tshawytscha were introduced into Lakes Michigan and Huron in the 1960s to diversify recreational fisheries and reduce overabundant, nonnative Alewife Alosa pseudoharengus. Alewife remain the primary prey of Chinook Salmon but have experienced substantial declines in abundance due to reduced food resources and salmonine predation pressure. The movements of Chinook Salmon
Authors
M.S Kornis, D.G. Simpkins, A.A. Lane, David M. Warner, C.B. Bronte
Diet predictions of Lake Ontario salmonines based on fatty acids and correlations between their fat content and thiamine concentrations
Thiamine Deficiency Complex (TDC) limits early life stage survival of salmonines. Consuming fatty prey has been hypothesized as a cause of thiamine deficiency; however, this relationship has not been evaluated in the Laurentian Great Lakes where TDC occurs. We found that alewife (Alosa pseudoharengus) have higher lipid content than other common Lake Ontario prey fish. In addition, alewife were pre
Authors
Matthew H. Futia, Michael J. Connerton, Brian C. Weidel, Jacques Rinchard
Bloom forming cyanobacteria can adversely affect zebra and quagga mussel veligers
Quagga (Dreissena rostriformis bugensis) and zebra (D. polymorpha) mussels are broadcast spawners that produce planktonic, free swimming veligers, a life history strategy dissimilar to native North American freshwater bivalves. Dreissenid veligers require highly nutritious food to grow and survive, and thus may be susceptible to increased mortality rates during harsh environmental conditions like
Authors
Anna G. Boegehold, Nicholas S. Johnson, Donna R. Kashian
Zooplankton dynamics in a Great Lakes connecting channel: Exploring the seasonal composition within the St. Clair-Detroit River System
The connecting channels linking the Laurentian Great Lakes provide important migration routes, spawning grounds, and nursery habitat for fish, but their role as conduits between lakes for zooplankton is less understood. To address this knowledge gap in the St. Clair–Detroit River System (SCDRS), a comprehensive survey of crustacean zooplankton was performed in both riverine and lacustrine habitats
Authors
Kevin (Contractor) Keeler, Taaja Tucker, Christine M Mayer, William W. Taylor, Edward F. Roseman
Intra- and interspecific variation in production of bile acids that act as sex pheromones in lampreys
Pheromones are important sexual signals in most animals, but research into their evolution is largely biased toward insects. Lampreys are a jawless fish with a relatively well-understood pheromone communication system and offer a useful opportunity to study pheromone evolution in a vertebrate. Once sexually mature, male sea lamprey (Petromyzon marinus), and likely other lampreys, produce and relea
Authors
Tyler John Buchinger, Ugo Bussy, Ke Li, Liang Jia, Cindy F. Baker, Ethan G. Buchinger, Zhang Zhen, Nicholas S. Johnson, Weiming Li