Great Lakes Science Center

Publications

Filter Total Items: 2,297
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Year Published: 2021

Comparison of specimen and image-based morphometrics in Cisco

Morphometric data from fish are typically generated using one of two methods: from direct measurements made on a specimen, or by extracting distances from a digital picture. We compared data on twelve morphometrics collected with these two different methods on the same collection of Cisco Coregonus artedi to assess the degree of bias in...

O'Malley, Brian; Schmitt, Joseph; Holden, Jeremy P.; Weidel, Brian C.

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Year Published: 2021

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...

Del Giudice, Dario; Fang, Shiqi; Scavia, Donald; Davis, Timothy W.; Evans, Mary Anne; Obenour, Daniel R

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Year Published: 2020

Influence of sediment and stream transport on detecting a source of environmental DNA

Environmental DNA (eDNA) can be used for early detection, population estimations, and assessment of potential spread of invasive species, but questions remain about factors that influence eDNA detection results. Efforts are being made to understand how physical, chemical, and biological factors—settling, resuspension, dispersion, eDNA stability/...

Nevers, Meredith B.; Przybyla-Kelly, Katarzyna; Shively, Dawn A.; Morris, Charles C.; Dickey, Joshua; Byappanahalli, Muruleedhara

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Year Published: 2020

Hydrogeomorphological controls on reach‐scale distributions of cichlid nest sites in a small neotropical river

The Cichlidae are among the most diversified families of fish in the Neotropics and represent an important component of aquatic biodiversity. Understanding cichlid nest‐site selection is important for assemblages facing uncertain futures due to species invasions and environmental change. This information could be used to predict how inter‐ and...

Buege, Emily A.; Esselman, Peter; Praskievicz, Sarah J.

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Year Published: 2020

Diet and bathymetric distribution of juvenile Lake Trout Salvelinus namaycush in Lake Huron

Rehabilitation efforts for Lake Trout Salvelinus namaycush in Lake Huron have resulted in increased capture of young wild Lake Trout in annual bottom trawl surveys conducted by the U.S. Geological Survey. To better understand the ecology of juvenile (<400mm) Lake Trout, we summarized the spatial distribution of their capture in bottom trawls at...

Roseman, Edward F.; Riley, Stephen; Tucker, Taaja; Farha, Steve A.; Jackson, Scott; Bowser, Dustin

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Year Published: 2020

Resource partitioning across a trophic gradient between a freshwater fish and an intraguild exotic

The introduction of exotic species has the potential to cause resource competition with native species and may lead to competitive exclusion when resources are limiting. On the other hand, information is lacking to predict under what alternate trophic conditions coexistence may occur. Comparing diets of native yellow perch Perca flavescens...

Kraus, Richard; Schmitt, Joseph; Keretz, Kevin R.

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Year Published: 2020

Evidence of an extreme weather‐induced phenological mismatch and a local extirpation of the endangered Karner blue butterfly

In 2011, an experiment was undertaken to examine spring synchrony between the endangered Karner blue butterfly (Lycaeides melissa samuelis) (Kbb) and its obligate host plant, wild blue lupine (Lupinus perennis) at Indiana Dunes National Lakeshore (INDU), where the southernmost population of Kbb occurred at the time of this study. From 2012 to 2014...

Patterson, Tamatha; Grundel, Ralph; Dzurisin, Jason D. K.; Knutson, Randy L.; Hellmann, Jessica

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Year Published: 2020

Nanopore amplicon sequencing reveals molecular convergence and local adaptation of rhodopsin in Great Lakes salmonids

Local adaptation can drive diversification of closely related species across environmental gradients and promote convergence of distantly related taxa that experience similar conditions. We examined a potential case of adaptation to novel visual environments in a species flock (Great Lakes salmonids, genus Coregonus) using a new amplicon...

Eaton, Katherine; Bernal, Moises; Backenstose, Nathan; Yule, Daniel; Krabbenhoft, Trevor J.

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Year Published: 2020

Evaluating the impacts of foreshore sand and birds on microbiological contamination at a freshwater beach

Beaches along the Great Lakes shorelines are important recreational and economic resources. However, contamination at the beaches can threaten their usage during the swimming season, potentially resulting in beach closures and/or advisories. Thus, understanding the dynamics that control nearshore water quality is integral to effective beach...

Saffaie, Ammar; Weiskerger, Chelsea J.; Nevers, Meredith B.; Byappanahalli, Muruleedhara; Phanikumar, Mantha S.

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Year Published: 2020

Restoration of rapids habitat in a Great Lakes connecting channel, the St. Marys River, Michigan

Aquatic habitat has been extensively altered throughout the Laurentian Great Lakes to increase navigation connectivity. In particular, the St. Marys River, a Great Lakes connecting channel, lost >50% of its historic rapids habitat over the past century. In 2016, the natural flow was restored to the Little Rapids area of the St. Marys River. The...

Molina-Moctezuma, A.; Ellis, E.; Kapuscinski, K.; Roseman, Edward F.; Heatlie, T.; Moerke, A.

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Year Published: 2020

Outsized nutrient contributions from small tributaries to a Great Lake

Excessive nutrient inputs from tributary streams and rivers contribute to harmful algal blooms and coastal ecosystem degradation worldwide. However, the role that small tributaries play in coastal nutrient dynamics remains unknown because most monitoring and regulatory efforts focus only on the largest tributaries. We combined a 6-d sampling...

Mooney, Robert J; Stanley, Emily H.; Rosenthal, William C.; Esselman, Peter; Kendall, Anthony D; McIntyre, Peter B.

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Year Published: 2020

Characterization of acoustic detection efficiency using a gliding robotic fish as a mobile receiver platform

BackgroundAutonomous underwater vehicles (AUVs) and animal telemetry have become important tools for understanding the relationships between aquatic organisms and their environment, but more information is needed to guide the development and use of AUVs as effective animal tracking platforms. A forward-facing acoustic telemetry receiver (VR2Tx 69...

Ennasr, Osama; Holbrook, Christopher; Hondorp, Darryl W.; Krueger, Charles C.; Coleman, Demetris; Solanki, Pratap; Thon, John; Tan, Xiaobo