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Examination of the role of dreissenids and macrophytes in the phosphorus dynamics of Lake Simcoe, Ontario, Canada

Alexey Gudimov, Dong-Kyun Kim, Joelle D. Young, Michelle E. Palmer, Maria Dittrich, Jennifer G. Winter, Eleanor Stainsby, George B. Arhonditsis
2015 Ecological Informatics  
Our study examines the relative importance of the causal linkages between exogenous total phosphorus (TP) loading and internal nutrient recycling with the water quality conditions in Lake Simcoe, Ontario  ...  The structural improvements include the incorporation of macrophyte dynamics, the explicit representation of the role of dreissenids in the system, and the improved portrayal of the interplay between water  ...  In conclusion, we examined the relative importance of the causal linkages between exogenous loading and internal nutrient recycling with the P dynamics in Lake Simcoe, Ontario, Canada.  ... 
doi:10.1016/j.ecoinf.2014.11.007 fatcat:2v5ifkqigjadja622mistucwau

Shifting Trophic Control of Fishery–Ecosystem Dynamics Following Biological Invasions

Daisuke Goto, Erin S. Dunlop, Joelle D. Young, Donald A. Jackson
2020 Bulletin of the Ecological Society of America  
large, temperate lake in Ontario, Canada that has shifted from a turbid to clear-water state.  ...  Synthesizing 30 yr of lake-wide monitoring data with a dynamic mass-balance food-web model (consisting of 61 species and trophic groups), we reconstructed historical food-web dynamics of Lake Simcoe, a  ...  ACKNOWLEDGMENTS We thank the Lake Simcoe Fisheries Assessment Unit of the Ontario Ministry of Natural Resources and Forestry (MNRF) and the Ontario Ministry of the Environment, Conservation and Parks (  ... 
doi:10.1002/bes2.1764 fatcat:2d5d52jffjb6zhc3uz564pt63u

Summary of Lake Simcoe's past, present and future

Michelle Palmer
2013 INLAND WATERS  
Acknowledgements We thank Jack Jones, David Hamilton, Janice Faaborg (Inland Waters), and Simon Pawley and Karen Rouen (Freshwater Biological Association) for their continual support of the Lake Simcoe  ...  The authors and reviewers are warmly acknowledged for their contributions to this important and timely collection of papers.  ...  The primary water quality concern in the Lake Simcoe watershed is excess phosphorus (P) loading that promotes the growth of algae and macrophytes, the decomposition of which depletes hypolimnetic dissolved  ... 
doi:10.5268/iw-3.2.622 fatcat:husimvm5tndtlidkz5cqhib6r4

The state of Lake Simcoe (Ontario, Canada): the effects of multiple stressors on phosphorus and oxygen dynamics

Rebecca North
2013 INLAND WATERS  
Lake Simcoe, the largest lake in southern Ontario outside of the Laurentian Great Lakes, is affected by numerous stressors including eutrophication resulting from total phosphorus (TP) loading, climate  ...  We synthesized the long-term responses of Lake Simcoe to these stressors by assessing trends in water quality and biological composition over multiple trophic levels.  ...  Collection of the Simcoe basin groundwater samples was conducted by Ryan Post (Nottawasaga Valley Conservation Authority), Melissa Green, Kelly Walker-Prince, Diane Moreau, and Stew Patterson (City of  ... 
doi:10.5268/iw-3.1.529 fatcat:xzaxkm2xgzfgjipiizk5wsfjsu

Mapping invasive Phragmites australis in the coastal Great Lakes with ALOS PALSAR satellite imagery for decision support

Laura L. Bourgeau-Chavez, Kurt P. Kowalski, Martha L. Carlson Mazur, Kirk A. Scarbrough, Richard B. Powell, Colin N. Brooks, Brian Huberty, Liza K. Jenkins, Elizabeth C. Banda, David M. Galbraith, Zachary M. Laubach, Kevin Riordan
2013 Journal of Great Lakes research  
Hypoxia in the hypolimnion of Lake Erie has been examined by assessing (i) the spatial and temporal extent of the hypoxia and (ii) linking the rate of oxygen (DO) depletion to the hypolimnion thickness  ...  The effect of seasonal changes in stratification on Poincare modes and the corresponding shear and cross-thermocline mixing are also examined.  ...  Keywords: Tributaries, Phosphorus, Lake Simcoe. The quality of game-fish in the Ottawa River above and below the Chalk River Laboratories of Atomic Energy of Canada Ltd. was examined in 2007.  ... 
doi:10.1016/j.jglr.2012.11.001 fatcat:nkzrhb6i4fdp7eje2qd5qsahwu

Internal phosphorus loading in Canadian fresh waters: a critical review and data analysis

Diane M. Orihel, Helen M. Baulch, Nora J. Casson, Rebecca L. North, Chris T. Parsons, Dalila C.M. Seckar, Jason J. Venkiteswaran
2017 Canadian Journal of Fisheries and Aquatic Sciences  
Internal P loading tended to be higher during the open-water season, and most 33 prominent in small prairie lakes.  ...  25 phosphorus (P) from sediments, which in turn, may contribute to the formation of harmful algal blooms. 26 Here, we critically reviewed internal P loading in Canadian freshwaters to understand the geographic  ...  ., and 1411 Arhonditsis, G.B. 2015. Examination of the role of dreissenids and macrophytes in the phosphorus 1412 dynamics of Lake Simcoe, Ontario, Canada. Ecol.  ... 
doi:10.1139/cjfas-2016-0500 fatcat:y2tyoslwm5cw5detumbyhohjum

Year-round patterns in bacterial production and biomass in Lake Simcoe, Ontario, Canada: are heterotrophic bacteria a significant contributor to low hypolimnetic oxygen?

Christina Quinn
2013 INLAND WATERS  
This is the first study to measure heterotrophic bacterial production, abundance, biomass, and biovolume in Lake Simcoe, Ontario.  ...  Excessive phosphorus loading resulting in low hypolimnetic oxygen concentrations has impacted the cold-water fishery in Lake Simcoe.  ...  Acknowledgements We thank Environment Canada's Lake Simcoe Clean-Up Fund (LSCUF) and an NSERC DG to Peter J. Dillon for funding.  ... 
doi:10.5268/iw-3.2.536 fatcat:zfx756u5azfenayhls3zzmzvby

Using Multitemporal Imagery to Improve Mapping and Inventory of Forested Roads in Michigan's Upper Peninsula

David M. Banach, Colin N. Brooks, Mark A. Fedora
2016 Transportation Research Record  
We will present these data, showing instances of severe CO 2 limitation in both lakes, and major spatial differences in Net P and respiration rates, for example with areas in Lake Erie near the Detroit  ...  WANG, J. 1 and BAI, X. 2 This research investigates the relationship of the Great Lakes ice cover with not only the NAO and ENSO on internnual time scales, but also with AMO and PDO on decadal time  ...  We applied a dynamic diagenetic model to gain insight into the dynamics of phosphorus internal loading from sediments of the Bay of Quinte, a Bay on the north eastern shore of Lake Ontario, Canada.  ... 
doi:10.3141/2580-07 fatcat:hvnrxsqcwzgbjiogbyo6ltfcry

A new method to generate a high-resolution global distribution map of lake chlorophyll

Michael J. Sayers, Amanda G. Grimm, Robert A. Shuchman, Andrew M. Deines, David B. Bunnell, Zachary B. Raymer, Mark W. Rogers, Whitney Woelmer, David H. Bennion, Colin N. Brooks, Matthew A. Whitley, David M. Warner (+1 others)
2015 International Journal of Remote Sensing  
A new method to generate a high-resolution global distribution map of lake chlorophyll.  ...  We will present these data, showing instances of severe CO 2 limitation in both lakes, and major spatial differences in Net P and respiration rates, for example with areas in Lake Erie near the Detroit  ...  WANG, J. 1 and BAI, X. 2 This research investigates the relationship of the Great Lakes ice cover with not only the NAO and ENSO on internnual time scales, but also with AMO and PDO on decadal time  ... 
doi:10.1080/01431161.2015.1029099 fatcat:5uugnnzklrgtlam6gfq7gwlxsy