Publications
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Using scenarios to assess possible future impacts of invasive species in the Laurentian Great Lakes
The expected impacts of invasive species are key considerations in selecting policy responses to potential invasions. But predicting the impacts of invasive species is daunting, particularly in large systems threatened by multiple invasive species, such as North America’s Laurentian Great Lakes. We developed and evaluated a scenario-building process that relied on an expert panel to assess possibl
Authors
T. Bruce Lauber, Richard C. Stedman, Nancy A Connelly, Lars G. Rudstam, Richard C Ready, Gregory L Poe, David B. Bunnell, Tomas O. Hook, Marten A. Koops, Stuart A. Ludsin, Edward S. Rutherford, Marion E. Wittmann
Freshwater polychaetes (Manayunkia speciosa) near the Detroit River, western Lake Erie: Abundance and life‐history characteristics
Freshwater polychaetes are relatively rare and little-studied members of the benthos of lakes and rivers. We studied one polychaete species (Manayunkia speciosa) in Lake Erie near the mouth of the Detroit River. Abundances at one site were determined between 1961 and 2013 and life‐history characteristics at two sites were determined seasonally (March–November) in 2009–2010 and 2012–2013. Life‐hist
Authors
Donald W. Schloesser, David M. Malakauskas, Sarah J. Malakauskas
A semelparous fish continues upstream migration when exposed to alarm cue, but adjusts movement speed and timing
Animals make trade-offs between predation risk and pursuit of opportunities such as foraging and reproduction. Trade-offs between antipredator behaviours and foraging are well suited to manipulation in laboratory and field settings and have generated a vast compendium of knowledge. However, much less is known about how animals manage trade-offs between predation risk and pursuit of reproductive op
Authors
Thomas M Luhring, Trevor D. Meckley, Nicholas S. Johnson, Michael J. Siefkes, John B. Hume, C. Michael Wagner
Eurytemora carolleeae in the Laurentian Great Lakes revealed by phylogenetic and morphological analysis
In the Laurentian Great Lakes, specimens of Eurytemora have been reported asEurytemora affinis since its invasion in the late 1950s. During an intensive collection of aquatic invertebrates for morphological and molecular identification in Western Lake Erie in 2012-2013, several specimens of Eurytemora were collected. Analysis of these specimens identified them as the recently described species Eur
Authors
Adrian A. Vasquez, Patrick L. Hudson, Masanori Fujimoto, Kevin M. Keeler, Patricia M. Dieter, Jeffrey L. Ram
White sucker Catostomus commersonii respond to conspecific and sea lamprey Petromyzon marinus alarm cues but not potential predator cues
Recent studies proposed the use of chemosensory alarm cues to control the distribution of invasive sea lamprey Petromyzon marinus populations in the Laurentian Great Lakes and necessitate the evaluation of sea lamprey chemosensory alarm cues on valuable sympatric species such as white sucker. In two laboratory experiments, 10 replicate groups (10 animals each) of migratory white suckers were expos
Authors
Ethan J. Jordbro, Richard T. Di Rocco, Istvan Imre, Nicholas S. Johnson, Grant E. Brown
Evaluating harvest-based control of invasive fish with telemetry: Performance of sea lamprey traps in the Great Lakes
Physical removal (e.g., harvest via traps or nets) of mature individuals may be a cost-effective or socially acceptable alternative to chemical control strategies for invasive species, but requires knowledge of the spatial distribution of a population over time. We used acoustic telemetry to determine the current and possible future role of traps to control and assess invasive sea lampreys, Petrom
Authors
Christopher Holbrook, Roger A. Bergstedt, Jessica M. Barber, Gale A Bravener, Michael L. Jones, Charles C. Krueger
Effects of coded-wire-tagging on stream-dwelling Sea Lamprey larvae
The effects of coded wire tagging Sea Lamprey Petromyzon marinus larvae from a known-aged stream-dwelling population were assessed. Tagged larvae were significantly shorter on average than untagged larvae from 3 to 18 months after tagging. However, 30 months after tagging, the length distribution of tagged and untagged larvae did not differ and tagged Sea Lampreys were in better condition (i.e., h
Authors
Nicholas S. Johnson, William D. Swink, Heather A. Dawson, Michael L. Jones
Divergent life histories of invasive round gobies (Neogobius melanostomus) in Lake Michigan and its tributaries
Round gobies (Neogobius melanostomus) have invaded benthic habitats of the Laurentian Great Lakes and connected tributary streams. Although connected, these two systems generally differ in temperature (Great Lakes are typically colder), food availability (Dreissenid mussels are more prevalent in Great Lakes), and system size and openness. Here, we compare round goby life histories from inshore Lak
Authors
Matthew Kornis, Brian C. Weidel, M. Jake Vander Zanden
Sex differences in contaminant concentrations of fish: a synthesis
Comparison of whole-fish polychlorinated biphenyl (PCB) and total mercury (Hg) concentrations in mature males with those in mature females may provide insights into sex differences in behavior, metabolism, and other physiological processes. In eight species of fish, we observed that males exceeded females in whole-fish PCB concentration by 17 to 43%. Based on results from hypothesis testing, we
Authors
Charles P. Madenjian, Richard R. Rediske, David P. Krabbenhoft, Martin A. Stapanian, Sergei M. Chernyak, James P. O'Keefe
Age and growth of round gobies in Lake Huron: Implications for food web dynamics
Although the round goby (Neogobius melanostomus) has become established throughout the Laurentian Great Lakes, information is scarce on spatial variation in round goby growth between and within lakes. Based on a sample of 754 specimens captured in 2014, age, growth, and mortality of round gobies at four locations in Lake Huron were assessed via otolith analysis. Total length (TL) of round gobies r
Authors
You J. Duan, Charles P. Madenjian, Cong X. Xie, James S. Diana, Timothy P. O'Brien, Ying M. Zhao, Ji X. He, Steve A. Farha, Bin Huo
Summer-autumn habitat use of yearling rainbow trout in two streams in the Lake Ontario watershed
Understanding the habitat requirements of salmonids in streams is an important component of fisheries management. We examined the summer and autumn habitat use of yearling Rainbow Trout Oncorhynchus mykiss in relation to available habitat in two streams in the Lake Ontario watershed. Little interstream variation in trout habitat use was observed; the variation that did occur was largely due to dif
Authors
James H. Johnson, James E. McKenna, Marc Chalupnicki
A call to insect scientists: Challenges and opportunities of managing insect communities under climate change
As climate change moves insect systems into uncharted territory, more knowledge about insect dynamics and the factors that drive them could enable us to better manage and conserve insect communities. Climate change may also require us revisit insect management goals and strategies and lead to a new kind of scientific engagement in management decision-making. Here we make five key points about the
Authors
Jessica J. Hellmann, Ralph Grundel, Chris Hoving, Gregor W. Schuurman