Jerome O. Nriagu, D.A. Holdway,
... 7.3 ng l-1 (August) for Lake Erie and 27 ng l-1 (June) and 13 ng l-1 (August) for ...
Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics
1989 - Taylor & Francis | Tellus B
Claire L. Schelske, Eugene F. Stoermer, William F. Kenney,
... Lake Ontario and the eastern basin of Lake Erie that developed as TP concentration increased to 27 µg L −1 (0.87 µmol L −1 ). Ratios of NAIP : ...
Tópico(s): Aquatic Ecosystems and Biodiversity
2006 - Wiley | Limnology and Oceanography
Ying Liu, Siyao Wang, Carrie A. McDonough, Mohammed A. Khairy, Derek C. G. Muir, Paul A. Helm, Rainer Lohmann,
... L(-1) in the open lake of Lake Erie (site E02) in 2011 spring to 105 pg L(-1) in Niagara (site On05) in 2012 summer, while total atmospheric concentrations were 7.7-634 pg m(-3) across both lakes. A west-to-east gradient was observed for aqueous PCBs in Lake Erie. River discharge and localized influences (e.g., sediment ...
Tópico(s): Environmental Justice and Health Disparities
2015 - American Chemical Society | Environmental Science & Technology
Perihan Binnur Kurt-Karakuş, Derek C. G. Muir, Terry F. Bidleman, Jeff Small, Sean Backus, Alice Dove,
... ng L−1, decreasing from lakes Ontario ∼ Michigan ∼ Erie > Huron > Superior, while metolachlor concentrations ranged from 0.28 to 14 ng L−1 and showed similar trends among the lakes. Median SFs ranged from 0.527 (Superior) to 0.844 (Erie) with an overall value of 0.708, and ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2010 - American Chemical Society | Environmental Science & Technology
Joseph D. Conroy, Erin L. Quinlan, Douglas D. Kane, David A. Culver,
... of the potentially toxic cyanobacterium Cylindrospermopsis in Lake Erie and Sandusky Bay in 2005 (0.043–1.326 mg L−1 wet weight, 16–1,942 trichomes mL−1) and quantify the physical and chemical parameters and the cyanobacterial community composition contemporaneous to its occurrence. We hypothesize that the high temperature, low light intensity, and high nutrient content of Sandusky Bay, a shallow, drowned river mouth along the southwestern shore of Lake Erie, provides an ideal habitat for Cylindrospermopsis. This is ...
Tópico(s): Aquatic Ecosystems and Biodiversity
2007 - Elsevier BV | Journal of Great Lakes Research
Christopher A. Marwood, Ralph E. Smith, Keith R. Solomon, Murray N. Charlton, Bruce M. Greenberg,
... from the western and central basins of Lake Erie. These samples were incubated with 0.2 to 2 mg L(-1) anthracene or its photomodified product 1, 2-dihydroxyanthraquinone ...
Tópico(s): Environmental Toxicology and Ecotoxicology
1999 - Elsevier BV | Ecotoxicology and Environmental Safety
Stephen B. Brandt, Marco Costantini, Sarah Kolesar, Stuart A. Ludsin, Doran M. Mason, C. M. Duncombe Rae, Hongyan Zhang,
In Lake Erie, the duration and extent of hypoxia (dissolved oxygen (DO) ≤ 2 mg·L –1 ) has increased in recent years, yet little is known on the corresponding impact on its fish, particularly the ...
Tópico(s): Arctic and Antarctic ice dynamics
2011 - Canadian Science Publishing | Canadian Journal of Fisheries and Aquatic Sciences
Aidin Jabbari, Josef Daniel Ackerman, Leon Boegman, Yingming Zhao,
... a proxy to predict interbasin coupling in Lake Erie. This involved the upwelling of cold and hypoxic (dissolved oxygen < 2 mg L −1 ) hypolimnetic water containing high total phosphorus concentration from ...
Tópico(s): Aquatic Invertebrate Ecology and Behavior
2021 - Nature Portfolio | Scientific Reports
Timothy W. Davis, Susan B. Watson, Mark J. Rozmarynowycz, Jan J. H. Ciborowski, R. Michael L. McKay, George S. Bullerjahn,
... to the Detroit River's outflow at Lake Erie. Microcystin levels exceeded the Province of Ontario Drinking Water Quality Standard (1.5 µg L−1) for safe drinking water at most sites, reaching up to five times this level in some areas. Microcystis was the predominant microcystin producer, and all toxic Microcystis strains found in Lake St. Clair were genetically similar to toxic Microcystis strains found in lakes Erie and Ontario. These findings suggest extensive genetic connectivity ...
Tópico(s): Freshwater macroinvertebrate diversity and ecology
2014 - Public Library of Science | PLoS ONE
Julianne Dyble, Gary L. Fahnenstiel, R. Wayne Litaker, David F. Millie, Patricia A. Tester,
... of Saginaw Bay (Lake Huron) and western Lake Erie, often exceeding the World Health Organization's recommended drinking water limit of 1 μg L −1 . The dominant congener of microcystin in both basins was microcystin‐LR (MC‐LR), whereas the second most abundant congeners, accounting for up to 20–25% of the total microcystin concentrations, were MC‐LA in Saginaw Bay and MC‐RR in western Lake Erie. Multiplex PCR assays of Microcystis colonies isolated from ...
Tópico(s): Marine and coastal ecosystems
2008 - Wiley | Environmental Toxicology
Nicholas J. Fendinger, Donald D. Adams,
... water were determined for cores collected in Lake Erie and two nearby harbors. Concentrations of N2 gas ranged from 11.9 to 37.0 ml l−1 and from 8.9 to 58.3 ml l−1 for open lake and polluted harbor sediments, respectively. Maximum concentrations in the harbor sediments were as high as 3.5 times N2 saturation calculated for the overlying water. Indirect diffusive flux estimates for nitrogen gas ranged from 20 to 32% of the particulate nitrogen sedimentation rate in Lake Erie. At one location, the amount of nitrogen gas ...
Tópico(s): Groundwater flow and contamination studies
1987 - Elsevier BV | Water Research
M. Munawar, I. F. Munawar, R. Dermott, H. Niblock, Silvina Carou,
... phosphorus loading to the Great Lakes including Lake Erie. Total phosphorus and chlorophyll a levels in the eutrophic west have dropped from 41 µg L −1 and 13.8 µg L −1 in the ...
Tópico(s): Soil and Water Nutrient Dynamics
2002 - Taylor & Francis | Aquatic Ecosystem Health & Management
... reservoir of the Thames River in the Lake Erie catchment basin, where traditional bloom indicators are rare. A nitrate threshold of 1 to 2 mg·L-1 is supported by occasional observations of chlorophyll (Chl) ...
Tópico(s): Fish Ecology and Management Studies
2007 - UWA Publishing | Water Quality Research Journal
Ruth E. Holland, Thomas H. Johengen, Alfred M. Beeton,
... strikingly similar to the concentration of 36 μg∙L −1 , which in 1959 helped to define the waters of Lake Erie as eutrophic. The relative steadiness in total phosphorus ...
Tópico(s): Water Quality and Resources Studies
1995 - Canadian Science Publishing | Canadian Journal of Fisheries and Aquatic Sciences
Henry A. Vanderploeg, Stuart A. Ludsin, Joann F. Cavaletto, Tomas O. Höök, Steven A. Pothoven, Stephen B. Brandt, James R. Liebig, Gregory A. Lang,
... offshore stations in the central basin of Lake Erie with similar thermal structure, but varying hypolimnetic dissolved oxygen (DO) concentrations (range: 0.3 to 4.6 mg l−1). The tendency of a zooplankter to use the ...
Tópico(s): Fish Ecology and Management Studies
2009 - Elsevier BV | Journal of Experimental Marine Biology and Ecology
Steven W. Wilhelm, Ralph E. Smith,
... 8 × 10 9 to 4.6 × 10 9 ·L -1 . Based on electron microscopic analysis, viruses in Lake Erie would have been responsible for 12.1-23. ...
Tópico(s): Marine and coastal ecosystems
2000 - Canadian Science Publishing | Canadian Journal of Fisheries and Aquatic Sciences
Johanna M. Rinta‐Kanto, Anthony J. A. Ouellette, Gregory L. Boyer, Michael R. Twiss, Thomas B. Bridgeman, Steven W. Wilhelm,
... toxic cyanobacteria Microcystis spp. persisted in western Lake Erie. Samples collected from the bloom were analyzed for the cyanobacterial toxin microcystin and the presence of Microcystis spp. cells. Estimates of microcystin toxicity exceeding 1 μg L-1 (microcystin−LR activity equivalents), the safety limit set ... varied from 4 × 108 to 2 × 103 cells L-1. The results of this study provide novel insight regarding the distribution and abundance of Microcystis spp. in the western basin of Lake Erie, a region plagued in recent years by large- ...
Tópico(s): Environmental DNA in Biodiversity Studies
2005 - American Chemical Society | Environmental Science & Technology
W. Berry Lyons, Christopher B. Gardner, Susan A. Welch, Samantha Israel,
... ranged from 0.3 to 3.9 µg L −1 , with the lowest concentrations observed in the most offshore Lake Erie samples. These results, especially when placed in the ...
Tópico(s): Radioactive element chemistry and processing
2020 - Nature Portfolio | Scientific Reports
Sumeda Madhuri, Kai Wang, Darren L. Bade, Xiaozhen Mou,
... coastal transects on the south shore of Lake Erie (LE), a Laurentian Great Lake. DFPA compounds were consistently detected in all samples and their concentrations (16.9–191.5 nmol L −1 ), turnover (1.6–3.2 d −1 ), and ...
Tópico(s): Marine and coastal ecosystems
2019 - Wiley | Limnology and Oceanography
Hanna S. Anderson, Thomas H. Johengen, Russ Miller, Casey M. Godwin,
... rates and onset of P release in Lake Erie's central basin as a function of depositional environment, season (spring, summer, and fall), temperature, and dissolved oxygen (DO) concentration. P flux under oxic or hypoxic (> 0 to ≤ 2 mg L −1 DO) conditions was slow (0.31–0.50 ...
Tópico(s): Aquatic Invertebrate Ecology and Behavior
2021 - Wiley | Limnology and Oceanography
Casey M. Godwin, Jessica R. Zehnpfennig, Deric R. Learman,
... mechanisms contributing to Mn oxide formation in Lake Erie, which experiences seasonal hypoxia and accumulation of Mn during seasonal stratification. Overall, Mn oxidation rates were much higher in the shallow and highly productive western basin (up to 1.5 µmoles L-1 d-1) compared to the deeper and less ...
Tópico(s): Heavy metals in environment
2020 - Frontiers Media | Frontiers in Environmental Science
Daisuke Goto, Kara L. Lindelof, DL Fanslow, SA Ludsin, Steven A. Pothoven, JJ Roberts, Henry A. Vanderploeg, Alan E. Wilson, Tomas O. Höök,
... of a cladoceran, Daphnia mendotae, in central Lake Erie, North America. To evaluate hypoxia tolerance of D. mendotae, we conducted a survivorship experiment with varying dissolved oxygen concentrations, which demonstrated high sensitivity of D. mendotae to hypoxia (≤2 mg O2 l−1), supporting the field observations of their behavioral avoidance ...
Tópico(s): Fish Ecology and Management Studies
2012 - Inter-Research | Aquatic Biology
Rebecca L. North, Stephanie J. Guildford, Ralph E. Smith, Sonya M. Havens, Michael R. Twiss,
... of the eastern basin of Lake Erie. Lake Erie phytoplankton are at times colimited by P, N, and Fe. This was most clearly demonstrated in the offshore, strongly stratified waters, where the Fe concentration was below detection (DL = 2.0 nmol L −1 ), and nutrient limitation indicators (APA, P debt, C: ...
Tópico(s): Fish Ecology and Management Studies
2007 - Wiley | Limnology and Oceanography
Alan E. Wilson, Duane C. Gossiaux, Tomas O. Höök, John P. Berry, Peter F. Landrum, Julianne Dyble, Stephanie J. Guildford,
... summer of 2006, the western basin of Lake Erie experienced a bloom of the toxigenic cyanobacterium Microcystis aeruginosa . Across 11 sites, intracellular, particulate-bound microcystin levels in the seston increased to levels that exceeded World Health Organization guidelines for drinking water exposure (1 µg toxin·L –1 ). In contrast, toxin concentrations in yellow perch ( Perca ...
Tópico(s): Marine and coastal ecosystems
2008 - Canadian Science Publishing | Canadian Journal of Fisheries and Aquatic Sciences
Klaus L.E. Kaiser, Ilze Valdmanis,
... from the central and eastern basins of Lake Erie were analyzed for volatile chloro- and chlorofluorocarbons for a one-week period in each of 1977 and 1978. The following contaminants were observed with mean concentrations and standard deviations in 1978 with the corresponding values for 1977 in parentheses: Dichlorodifluoromethane (Freon 12) 76±38 (73±36) ng°L−1; trichlorofluoromethane (Freon 11) 34±26 (46±40) ng· ... LT−1; trichloroethylene 20±13 (11±9) ng·L−1. Except for carbon tetrachloride and trichloroethylene, the distribution patterns appear to show little correlation with each other. Chloroform concentrations were relatively uniform, however the carbon tetrachloride and trichloroethylene concentrations appear to be point-source related with discharges along the south shore of Lake Erie. Freon 12 concentrations were generally higher in the ...
Tópico(s): Water Treatment and Disinfection
1979 - Elsevier BV | Journal of Great Lakes Research
Kristin K. Arend, Dmitry Beletsky, Joseph V. DePinto, Stuart A. Ludsin, James J. Roberts, Daniel K. Rucinski, Donald Scavia, David J. Schwab, Tomas O. Höök,
... concentrations are depleted below 2–3 mg O2 L−1. 2. We evaluated the effects of hypoxia on fish habitat quality in the central basin of Lake Erie from 1987 to 2005, using bioenergetic growth rate ...
Tópico(s): Aquatic Invertebrate Ecology and Behavior
2010 - Wiley | Freshwater Biology
... the role of zooplankton grazing in influencing Lake Erie abiotic conditions and biotic interactions during 2 years of varying zebra mussel abundances. In situ grazing experiments (32P-labeled yeast cells) revealed that cladoceran species contributed >85% of zooplankton community grazing rate, whereas copepods accounted for 200 mL L−1 d−1) calculated from the models between June ...
Tópico(s): Aquatic Ecosystems and Phytoplankton Dynamics
1991 - Elsevier BV | Journal of Great Lakes Research
Yuxin Ma, Šimon Vojta, Jitka Bečanová, Asta Zerue Habtemichael, Dave Adelman, Derek C. G. Muir, Rainer Lohmann,
... column of the lower Great Lake region (Lake Erie and Lake Ontario) to detect gaseous and dissolved OPEs, evaluate their occurrence and spatial distribution, and estimate their air-water gas exchange fluxes. The median concentration of the total dissolved and gaseous phase OPEs detected (Σ9OPEs) were 95 ng L−1 and 404 pg m−3, respectively, during April– ...
Tópico(s): Environmental Toxicology and Ecotoxicology
2021 - Elsevier BV | Environmental Pollution
Aidin Jabbari, Josef Daniel Ackerman, Leon Boegman, Yingming Zhao,
... basins, such as the western basin of Lake Erie, in which hypoxia is not anticipated. We investigated the dynamics and causes of hypoxia using field measurements at two locations in the western basin during the late summer of 2017. Two hypoxic events (dissolved oxygen [DO] concentrations < 2 mg L −1 ) were recorded that were caused by upwelling of ...
Tópico(s): Marine and coastal ecosystems
2019 - Wiley | Limnology and Oceanography
Mohiuddin Munawar, Denis H. Lynn,
... conducted at stations distributed across Lakes Superior, Huron, Erie, and Ontario in various years from 1979–2000. The study focuses on abundance, biomass, and size spectrum. Our data demonstrate that ciliates contribute significantly to the planktonic communities of the Great Lakes. Mean abundance ranged from <1.0 to >14,000 l−1. Mean biomass ranged from <1.0 to & ...
Tópico(s): Soil and Water Nutrient Dynamics
2002 - Taylor & Francis | Aquatic Ecosystem Health & Management