Publications
Welcome to the Great Lakes Science Center's Publications page.
Filter Total Items: 2571
Differences in rhizosphere microbial communities between native and non‐native Phragmites australis may depend on stand density
Microorganisms surrounding plant roots may benefit invasive species through enhanced mutualism or decreased antagonism, when compared to surrounding native species. We surveyed the rhizosphere soil microbiome of a prominent invasive plant, Phragmites australis, and its co‐occurring native subspecies for evidence of microbial drivers of invasiveness. If the rhizosphere microbial community is import
Authors
Wesley A. Bickford, Donald R. Zak, Kurt P. Kowalski, Deborah E. Goldberg
Elucidating controls on cyanobacteria bloom timing and intensity via Bayesian mechanistic modeling
The adverse impacts of harmful algal blooms (HABs) are increasing worldwide. Lake Erie is a North American Great Lake highly affected by cultural eutrophication and summer cyanobacterial HABs. While phosphorus loading is a known driver of bloom size, more nuanced yet crucial questions remain. For example, it is unclear what mechanisms are primarily responsible for initiating cyanobacterial dominan
Authors
Dario Del Giudice, Shiqi Fang, Donald Scavia, Timothy W. Davis, Mary Anne Evans, Daniel R Obenour
Spatial and vertical bias in down-looking ship-based acoustic estimates of fish density in Lake Superior: Lessons learned from multi-directional acoustics
Hydroacoustic surveys using hull-mounted down-looking transducers are useful for estimating pelagic fish densities; however, this method may miss shallow fish owing to the acoustic surface dead zone and vessel avoidance. Our objective was to compare pelagic fish density estimates acquired by a traditional down-looking acoustic survey to estimates obtained by a new multi-directional-towed sled capa
Authors
Ryan C Grow, Thomas R. Hrabik, Daniel Yule, Bryan G. Matthias, Jared T. Myers, Chad Abel
Review of methods to repair and maintain lithophilic fish spawning habitat
Rocky reefs provide important spawning and refuge habitats for lithophilic spawning fishes. However, many reefs have been lost or severely degraded through anthropogenic effects like dredging, channelization, or sedimentation. Constructed reefs have been used to mitigate these effects in some systems, but these reefs are also subject to degradation which may warrant custodial maintenance. Monitori
Authors
Audrey Baetz, Taaja Tucker, Robin DeBruyne, Alex Gatch, T. Hook, J. Fischer, Edward F. Roseman
Utilization of multiple microbial tools to evaluate efficacy of restoration strategies to improve recreational water quality at a Lake Michigan Beach (Racine, WI)
Hydro-meteorological conditions facilitate transport of fecal indicator bacteria (FIB) to the nearshore environment, affecting recreational water quality. North Beach (Racine, Wisconsin, United States), is an exemplar public beach site along Lake Michigan, where precipitation-mediated surface runoff, wave encroachment, stormwater and tributary outflow were demonstrated to contribute to beach advis
Authors
Julie Kinzelman, Muruleedhara Byappanahalli, Meredith B. Nevers, Dawn Shively, Stephan Kurdas, Cindy H Nakatsu
Investigating apparent misalignment of predator-prey dynamics: Great Lakes lake trout and sea lampreys
Interpreting ecological dynamics is challenging when observed patterns are not aligned with presumed models. Investigating possible sources of uncertainty is critical to understand the underlying system and ultimately inform management decisions. In this study, we used simulation to investigate the hypothesis that observed inconsistencies in Great Lakes lake trout (Salvelinus namaycush) and sea la
Authors
Jean V. Adams, Michael L. Jones, James R. Bence
Winter severity, fish community, and availability to traps explain most of the variability in estimates of adult sea lamprey in Lake Superior
Animal populations are assessed to estimate rates of artificial and natural mortality at ecologically relevant spatial and temporal scales to develop exploitation quotas. But how the population’s natural mortality rate and how the ability to observe the population changes through time are poorly understood in most invasive fishes, despite efforts to control their populations. By investigating a 30
Authors
Nicholas S. Johnson, Jean V. Adams, Gale Bravener, Jessica Barber, Ted Treska, Michael J Siefkes
Evaluation of visible light as a cue for guiding downstream migrant juvenile Sea Lamprey
Light can modify orientation and locomotory behaviors in fish and has been applied to attract or repel migrant fish by inducing positive or negative phototaxis. Here, recently metamorphosed downstream‐migrating Sea Lamprey Petromyzon marinus were exposed to light cues in several orientations and intensities at night under controlled flowing‐water conditions in a laboratory flume. Behaviors and rat
Authors
Alexander Haro, Scott M. Miehls, Nicholas S. Johnson, C. Michael Wagner
Using simulation to understand annual sea lamprey marking rates on lake trout
Sea lampreys attack fish, killing some and leaving marks on others. Great Lakes fishery managers rely on observed marking rates to assess the success of the sea lamprey control program and estimate sea lamprey-induced mortality of lake trout. Because marking rates are only observed on survivors of sea lamprey attacks, they may not provide a reliable index of actual attack or mortality rates. To in
Authors
Jean V. Adams, Michael L. Jones, James R. Bence
Evidence of host switching: Sea lampreys disproportionately attack Chinook salmon when lake trout abundance is low in Lake Ontario
Lake trout (Salvelinus namaycush) is the presumed preferred host of the invasive sea lamprey (Petromyzon marinus) in the Great Lakes, but little is understood about this preference outside of laboratory experiments. By preference we mean sea lamprey attacks on hosts are disproportionate to host relative abundance. The purpose of this study was to quantify host preference of sea lampreys in the fie
Authors
Jean V. Adams, Michael L. Jones
Assessing the assumptions of classification agreement, accuracy, and predictable healing time of sea lamprey wounds on lake trout
Sea lamprey control in the Laurentian Great Lakes relies on records of sea lamprey wounds on lake trout to assess whether control efforts are supporting fisheries management targets. Wounding records have been maintained for 70 years under the assumption that they are a reliable and accurate reflection of sea lamprey damage inflicted on fish populations. However, two key assumptions underpinning t
Authors
Tyler Firkus, Cheryl Murphy, Jean V. Adams, Ted Treska, Gregory J. Fischer
Larval Coregonus spp. diets and zooplankton community patterns in the Apostle Islands, Lake Superior
With the exception of lake whitefish (Coregonus clupeaformis), relatively little is known about the early life history of larval coregonines in the Laurentian Great Lakes. For example, our knowledge of the feeding ecology of larval coregonines (excluding lake whitefish) is based on only 900 stomachs reported in the literature. Here, we describe the diets and demographics of larval coregonines from
Authors
Verena S. Lucke, Taylor R. Stewart, Mark Vinson, Jay D. Glase, Jason D. Stockwell