Publications
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Quagga and zebra mussels: biology, impacts, and control Quagga and zebra mussels: biology, impacts, and control
Quagga and Zebra Mussels: Biology, Impacts, and Control, Second Edition provides a broad view of the zebra/quagga mussel issue, offering a historic perspective and up-to-date information on mussel research. Comprising 48 chapters, this second edition includes reviews of mussel morphology, physiology, and behavior. It details mussel distribution and spread in Europe and across North...
Routine screening of harmful microorganisms in beach sands: implications to public health Routine screening of harmful microorganisms in beach sands: implications to public health
Beaches worldwide provide recreational opportunities to hundreds of millions of people and serve as important components of coastal economies. Beach water is often monitored for microbiological quality to detect the presence of indicators of human sewage contamination so as to prevent public health outbreaks associated with water contact. However, growing evidence suggests that beach...
Authors
Raquel Sabino, R. Rodrigues, I. Costa, Carlos Carneiro, M. Cunha, A. Duarte, N. Faria, F.C. Ferriera, M.J. Gargate, C. Julio, M.L. Martins, Meredith Nevers, M. Oleastro, H. Solo-Gabriele, C. Verissimo, C. Viegas, Richard L. Whitman, J. Brandao
Probabilistic analysis showing that a combination of bacteroides and methanobrevibacter source tracking markers is effective for identifying waters contaminated by human fecal pollution Probabilistic analysis showing that a combination of bacteroides and methanobrevibacter source tracking markers is effective for identifying waters contaminated by human fecal pollution
Microbial source tracking assays to identify sources of waterborne contamination typically target genetic markers of host-specific microorganisms. However, no bacterial marker has been shown to be 100% host-specific, and cross-reactivity has been noted in studies evaluating known source samples. Using 485 challenge samples from 20 different human and animal fecal sources, this study...
Authors
Christopher Johnston, Muruleedhara N. Byappanahalli, Jacqueline MacDonald Gibson, Jennifer A. Ufnar, Richard L. Whitman, Jill R. Stewart
Multi-laboratory evaluations of the performance of Catellicoccus marimammalium PCR assays developed to target gull fecal sources Multi-laboratory evaluations of the performance of Catellicoccus marimammalium PCR assays developed to target gull fecal sources
Here we report results from a multi-laboratory (n = 11) evaluation of four different PCR methods targeting the 16S rRNA gene of Catellicoccus marimammalium originally developed to detect gull fecal contamination in coastal environments. The methods included a conventional end-point PCR method, a SYBR® Green qPCR method, and two TaqMan® qPCR methods. Different techniques for data...
Authors
Christopher D. Sinigalliano, Jared S. Ervin, Laurie C. Van De Werfhorst, Brian D. Badgley, Elisenda Ballestee, Jakob Bartkowiaka, Alexandria B. Boehm, Muruleedhara N. Byappanahalli, Kelly D. Goodwin, Michele Gourmelon, John Griffith, Patricia A. Holden, Jenny Jay, Blythe Layton, Cheonghoon Lee, Jiyoung Lee, Wim G. Meijer, Rachel Noble, Meredith Raith, Hodon Ryu, Michael J. Sadowsky, Alexander Schriewer, Dan Wang, David Wanless, Richard Whitman, Stefan Wuertz, Jorge W. Santo Domingo
PCB concentrations and activity of sea lamprey Petromyzon marinus vary by sex PCB concentrations and activity of sea lamprey Petromyzon marinus vary by sex
We determined the polychlorinated biphenyl (PCB) concentrations of 40 male and 40 female adult sea lampreys Petromyzon marinus captured in the Cheboygan River, a tributary to Lake Huron, during May 2011. In addition, we performed a laboratory experiment using passive integrated transponder tags to determine whether male adult sea lampreys were more active than female adult sea lampreys...
Authors
Charles P. Madenjian, Nicholas S. Johnson, Thomas R. Binder, Richard R. Rediske, James P. O'Keefe
Performance of human fecal anaerobe-associated PCR-based assays in a multi-laboratory method evaluation study Performance of human fecal anaerobe-associated PCR-based assays in a multi-laboratory method evaluation study
A number of PCR-based methods for detecting human fecal material in environmental waters have been developed over the past decade, but these methods have rarely received independent comparative testing in large multi-laboratory studies. Here, we evaluated ten of these methods (BacH, BacHum-UCD, Bacteroides thetaiotaomicron (BtH), BsteriF1, gyrB, HF183 endpoint, HF183 SYBR, HF183 Taqman®...
Authors
Blythe A. Layton, Yiping Cao, Darcy L. Ebentier, Kaitlyn Hanley, Elisenda Balleste, Joao Brandao, Muruleedhara N. Byappanahalli, Reagan Converse, Andreas H. Farnleitner, Jennifer Gidley Gentry-Shields, Michele Gourmelon, Chang Soo Lee, Jiyoung Lee, Solen Lozach, Tania Madi, Wim G. Meijer, Rachel Noble, Lindsay Peed, Georg H. Reischer, Raquel Rodrigues, Joan B. Rose, Alexander Schriewer, Chris Sinigalliano, Sangeetha Srinivasan, Jill Stewart, C. Laurie, Dan Wang, Richard Whitman, Stefan Wuertz, Jenny Jay, Patricia A. Holden, Alexandria B. Boehm, Orin Shanks, John F. Griffith
Spatial and temporal genetic diversity of lake whitefish (Coregonus clupeaformis (Mitchill)) from Lake Huron and Lake Erie Spatial and temporal genetic diversity of lake whitefish (Coregonus clupeaformis (Mitchill)) from Lake Huron and Lake Erie
Lake whitefish (Coregonus clupeaformis (Mitchill)) are important commercially, culturally, and ecologically in the Laurentian Great Lakes. Stocks of lake whitefish in the Great Lakes have recovered from low levels of abundance in the 1960s. Reductions in abundance, loss of habitat and environmental degradation can be accompanied by losses of genetic diversity and overall fitness that may...
Authors
Wendylee Stott, Mark P. Ebener, Lloyd Mohr, Travis Hartman, Jim Johnson, Edward F. Roseman
Morphometric variation among spawning cisco aggregations in the Laurentian Great Lakes: are historic forms still present? Morphometric variation among spawning cisco aggregations in the Laurentian Great Lakes: are historic forms still present?
Cisco (Coregonus artedi Leseur, formerly lake herring Leucichthys artedi Leseur) populations in each of the Laurentian Great Lakes collapsed between the late 1920s and early 1960s following a multitude of stressors, and never recovered in Lakes Michigan, Erie and Ontario. Prior to their collapse, Koelz (1929) studied Leucichthys spp. in the Great Lakes basin and provided a description of...
Authors
Daniel L. Yule, Seth A. Moore, Mark P. Ebener, Randall M. Claramunt, Thomas C. Pratt, Lorrie L. Salawater, Michael J. Connerton
Trophic shift, not collapse Trophic shift, not collapse
Jerald Schnoor’s editorial describes the recent changes in Lake Huron’s aquatic ecosystem as a trophic collapse and attributes this collapse to invasive species dominating energy and nutrient flows in the food web. As state and federal scientists who are closely monitoring Lake Huron’s food web, we believe that the ongoing changes are more accurately characterized as a trophic shift in...
Authors
Charles P. Madenjian, Edward S. Rutherford, Craig A. Stow, Edward F. Roseman, Ji X. He
Sensitivity of fish density estimates to standard analytical procedures applied to Great Lakes hydroacoustic data Sensitivity of fish density estimates to standard analytical procedures applied to Great Lakes hydroacoustic data
Standardized methods of data collection and analysis ensure quality and facilitate comparisons among systems. We evaluated the importance of three recommendations from the Standard Operating Procedure for hydroacoustics in the Laurentian Great Lakes (GLSOP) on density estimates of target species: noise subtraction; setting volume backscattering strength (Sv) thresholds from user-defined...
Authors
Patrick M. Kocovsky, Lars G. Rudstam, Daniel L. Yule, David M. Warner, Ted Schaner, Bernie Pientka, John W. Deller, Holly A. Waterfield, Larry D. Witzel, Patrick J. Sullivan
Effect of light, prey density, and prey type on the feeding rates of Hemimysis anomala Effect of light, prey density, and prey type on the feeding rates of Hemimysis anomala
Hemimysis anomala is a near-shore mysid native to the Ponto-Caspian region that was discovered to have invaded Great Lakes ecosystems in 2006. We investigated feeding rates and prey preferences of adult and juvenile Hemimysis in laboratory experiments to gain insight on the potential for Hemimysis to disrupt food webs. For both age groups (AGs), we measured feeding rates as a function of...
Authors
Kathleen E. Halpin, Brent T. Boscarino, Lars G. Rudstam, Mureen G. Walsh, Brian F. Lantry
Regulation of a putative corticosteroid, 17, 21-dihydroxypregn-4-ene, 3, 20-one, in sea lamprey, Petromyzon marinus Regulation of a putative corticosteroid, 17, 21-dihydroxypregn-4-ene, 3, 20-one, in sea lamprey, Petromyzon marinus
In higher vertebrates, in response to stress, the hypothalamus produces corticotropin-releasing hormone (CRH), which stimulates cells in the anterior pituitary to produce adrenocorticotropic hormone (ACTH), which in turn stimulates production of either cortisol (F) or corticosterone (B) by the adrenal tissues. In lampreys, however, neither of these steroids is present. Instead, it has...
Authors
Brent W. Roberts, Wes Didier, Satbir Rai, Nicholas S. Johnson, Scot V. Libants, Sang-Seon Yun, David Close