Publications
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Bile salts as semiochemicals in fish Bile salts as semiochemicals in fish
Bile salts are potent olfactory stimuli in fishes; however the biological functions driving such sensitivity remain poorly understood. We provide an integrative review of bile salts as semiochemicals in fish. First, we present characteristics of bile salt structure, metabolism, and function that are particularly relevant to chemical communication. Bile salts display a systematic pattern...
Authors
Tyler J. Buchinger, Weiming Li, Nicholas S. Johnson
Timing is everything Timing is everything
No abstract available.
Authors
Erin J. Walaszczyk, Cory O. Brant, Nicholas S. Johnson, Weiming Li
Fish assemblages, connectivity, and habitat rehabilitation in a diked Great Lakes coastal wetland complex Fish assemblages, connectivity, and habitat rehabilitation in a diked Great Lakes coastal wetland complex
Fish and plant assemblages in the highly modified Crane Creek coastal wetland complex of Lake Erie were sampled to characterize their spatial and seasonal patterns and to examine the implications of the hydrologic connection of diked wetland units to Lake Erie. Fyke netting captured 52 species and an abundance of fish in the Lake Erie–connected wetlands, but fewer than half of those...
Authors
Kurt P. Kowalski, Michael J. Wiley, Douglas A. Wilcox
Estimating reach-specific fish movement probabilities in rivers with a Bayesian state-space model: application to sea lamprey passage and capture at dams Estimating reach-specific fish movement probabilities in rivers with a Bayesian state-space model: application to sea lamprey passage and capture at dams
Improved methods are needed to evaluate barriers and traps for control and assessment of invasive sea lamprey ( Petromyzon marinus) in the Great Lakes. A Bayesian state-space model provided reach-specific probabilities of movement, including trap capture and dam passage, for 148 acoustic tagged invasive sea lamprey in the lower Cheboygan River, Michigan, a tributary to Lake Huron. Reach...
Authors
Christopher M. Holbrook, Nicholas S. Johnson, Juan P. Steibel, Michael B. Twohey, Thomas R. Binder, Charles C. Krueger, Michael L. Jones
Mercury elimination rates for adult northern pike Esox lucius: evidence for a sex effect Mercury elimination rates for adult northern pike Esox lucius: evidence for a sex effect
We examined the effect of sex on mercury elimination in fish by monitoring isotope-enriched mercury concentrations in the muscle tissue of three adult female and three adult male northern pike Esox lucius, which had accumulated the isotope-enriched mercury via a whole-lake manipulation and were subsequently moved to a clean lake. Mercury elimination rates for female and male northern...
Authors
Charles P. Madenjian, Paul J. Blanchfield, Lee E. Hrenchuk, Jillian L. A. Van Walleghem
Ecological tracers reveal resource convergence among prey fish species in a large lake ecosystem Ecological tracers reveal resource convergence among prey fish species in a large lake ecosystem
1. We measured stable isotopes of carbon (δ13C) and nitrogen (δ15N) and fatty acid profiles in Lake Ontario alewife ( Alosa pseudoharengus), rainbow smelt ( Osmerus mordax), slimy sculpin ( Cottus cognatus) and round goby ( Neogobius melanostomus) collected from 1982 to 2008 to investigate how temporal variability in these ecological tracers can relate to ecosystem-level changes...
Authors
Gord Paterson, Scott A. Rush, Michael T. Arts, Ken G. Drouillard, G. Doug Haffner, Tim B. Johnson, Brian F. Lantry, Craig E. Hebert, Daryl J. McGoldrick, Sean M. Backus, Aaron T. Fisk
Sampling little fish in big rivers: Larval fish detection probabilities in two Lake Erie tributaries and implications for sampling effort and abundance indices Sampling little fish in big rivers: Larval fish detection probabilities in two Lake Erie tributaries and implications for sampling effort and abundance indices
Larval fish are frequently sampled in coastal tributaries to determine factors affecting recruitment, evaluate spawning success, and estimate production from spawning habitats. Imperfect detection of larvae is common, because larval fish are small and unevenly distributed in space and time, and coastal tributaries are often large and heterogeneous. We estimated detection probabilities of...
Authors
Jeremy J. Pritt, Mark R. DuFour, Christine M. Mayer, Edward F. Roseman, Robin L. DeBruyne
Modeling turbidity type and intensity effects on the growth and starvation mortality of age-0 yellow perch Modeling turbidity type and intensity effects on the growth and starvation mortality of age-0 yellow perch
We sought to quantify the possible population-level influence of sediment plumes and algal blooms on yellow perch (Perca flavescens), a visual predator found in systems with dynamic water clarity. We used an individual-based model (IBM), which allowed us to include variance in water clarity and the distribution of individual sizes. Our IBM was built with laboratory data showing that...
Authors
Nathan M Manning, Jonathan M. Bossenbroek, Christine M. Mayer, David B. Bunnell, Jeff T. Tyson, Lars G. Rudstam, James R. Jackson
Assessing and addressing the re-eutrophication of Lake Erie: central basin hypoxia Assessing and addressing the re-eutrophication of Lake Erie: central basin hypoxia
Relieving phosphorus loading is a key management tool for controlling Lake Erie eutrophication. During the 1960s and 1970s, increased phosphorus inputs degraded water quality and reduced central basin hypolimnetic oxygen levels which, in turn, eliminated thermal habitat vital to cold-water organisms and contributed to the extirpation of important benthic macroinvertebrate prey species...
Authors
Donald Scavia, J. David Allan, Kristin K. Arend, Steven Bartell, Dmitry Beletsky, Nate S. Bosch, Stephen B. Brandt, Ruth D. Briland, Irem Daloglu, Joseph V. DePinto, David M. Dolan, Mary Anne Evans, Troy M. Farmer, Daisuke Goto, Haejin Han, Tomas O. Hook, Roger Knight, Stuart A. Ludsin, Doran Mason, Anna M. Michalak, R. Peter Richards, James J. Roberts, Daniel K. Rucinski, Edward Rutherford, David J. Schwab, Timothy M. Sesterhenn, Hongyan Zhang, Yuntao Zhou
Males exceed females in PCB concentrations of cisco (Coregonus artedi) from Lake Superior Males exceed females in PCB concentrations of cisco (Coregonus artedi) from Lake Superior
We determined whole-fish polychlorinated biphenyl (PCB) concentrations of 25 male and 25 female age-7 ciscoes (Coregonus artedi) captured from a spawning aggregation in Thunder Bay, Lake Superior, during November 2010. We also determined PCB concentrations in the ovaries and somatic tissue of five additional female ciscoes (ages 5–22). All 55 of these ciscoes were in ripe or nearly ripe...
Authors
Charles P. Madenjian, Daniel L. Yule, Sergei M. Chernyak, Linda J. Begnoche, Eric K. Berglund, Edmund J. Isaac
Coastal geology and recent origins for Sand Point, Lake Superior Coastal geology and recent origins for Sand Point, Lake Superior
Sand Point is a small cuspate foreland located along the southeastern shore of Lake Superior within Pictured Rocks National Lakeshore near Munising, Michigan. Park managers’ concerns for the integrity of historic buildings at the northern periphery of the point during the rising lake levels in the mid-1980s greatly elevated the priority of research into the geomorphic history and age of...
Authors
Timothy G. Fisher, David E. Krantz, Mario R. Castaneda, Walter L. Loope, Harry M. Jol, Ronald J. Goble, Melinda C. Higley, Samantha DeWald, Paul Hansen
Effects of recruitment, growth, and exploitation on walleye population size structure in northern Wisconsin lakes Effects of recruitment, growth, and exploitation on walleye population size structure in northern Wisconsin lakes
We evaluated the dynamics of walleye Sander vitreus population size structure, as indexed by the proportional size distribution (PSD) of quality-length fish, in Escanaba Lake during 1967–2003 and in 204 other lakes in northern Wisconsin during 1990–2011. We estimated PSD from angler-caught walleyes in Escanaba Lake and from spring electrofishing in 204 other lakes, and then related PSD...
Authors
Michael J. Hansen, Nancy A. Nate