To make it easier to find an appropriate session, we have grouped them below by topical area. We encourage authors to submit abstracts for specific session topics but also will consider those submitted under "General Contributions." The program will be designed so that sessions within a topical area will not run concurrently. The ordering of topical areas and of sessions within topical areas is arbitrary.

Aquatic Invasive Species: Sessions 1-3

Session 1. Aquatic Invasive Species Challenges in a Changing World

Chaired by Stephen Hensler, Timothy Strakosh and Jessica Simons

Stephen Hensler, U.S. Fish & Wildlife Conservation Office, Alpena Fish & Wildlife Conservation Office, Waterford, MI 48327 USA; Phone: (248) 891-6433; Fax: (248) 666-9157; E-mail:

Timothy Strakosh, U.S.Fish and Wildlife Service, Green Bay Fish and Wildlife Conservation Office, New Franken, WI 54229 USA; Phone: (920) 866-1726; Fax: (920) 866-1710; E-mail:

Jessica Simons, Verdant Stewardship, LLC, 22156 Deerfield Trl, Mattawan, MI 12345 USA; Phone: (734) 707-1949; E-mail:

Aquatic invasive species are capable of causing dramatic change in ecosystems, which affects the ways we study, monitor, and manage them. With increased globalization of commerce, funding uncertainties, and development of new scientific techniques, scientists must adapt their approaches to best account for ecological, economic, and social transitions. This session highlights some of the factors scientists are considering and adaptations they are making for invasive species risk assessment, detection, and management.

Session 2. Phragmites australis: Impacts and Restoration Challenges for Great Lakes Coastal Habitats

Chaired by Rebecca Rooney and Janice Gilbert

Rebecca Rooney, University of Waterloo, 200 University Ave. West, B2-249B, Waterloo, ON N2L 3G1 Canada; Phone: (519) 888-4567, Ext. 33820; E-mail:

Janice Gilbert, RR#5, Langton, ON N0E1G0 Canada; Phone: (519) 875-1765; E-mail:

The ecosystem effects and invasion history of Phragmites australis on Great Lakes coastal ecosystems will be the focus of this session. Building on this basic research, we will also feature recent work on control and management efforts, as well as the need for a coherent trans-boundary policy on this invasive species.

Session 3. Invasive Round Goby as Drivers of Ecological Change in the Laurentian Great Lakes

Chaired by Justin Glenn Mychek-Londer, Harri Pettitt-Wade, Kyle Wellband and Felicia Vincelli

Justin Glenn Mychek-Londer, Great Lakes Institute for Environmental Research, University of Windsor, 2990 Riverside Dr, Windsor, ON N9C 1G2 ‎ Canada; Phone: (519) 253-3000, Ext. 4247; Fax: (519) 971-3616; E-mail:

Harri Pettitt-Wade, Great Lakes Institute for Environmental Research, University of Windsor, 2990 Riverside Dr, Windsor, ON N9C 1G2 ‎ Canada; Phone: (519) 253-3000, Ext. 4245; Fax: (519) 971-3616; E-mail:

Kyle Wellband, Great Lakes Institute for Environmental Research, University of Windsor, 2990 Riverside Dr, Windsor, ON N9C 1G2 ‎ Canada; Phone: (519) 253-3000, Ext. 4246; Fax: (519) 971-3616; E-mail:

Felicia Vincelli, Great Lakes Institute for Environmental Research, University of Windsor, 2990 Riverside Dr, Windsor, ON N9C 1G2 ‎ Canada; Phone: (519) 253-3000, Ext. 4246; Fax: (519) 971-3616; E-mail:

This session will focus on ecological and biological roles of invasive round goby (Noegobius melanostomus) in Laurentian Great Lakes ecosystems and basins of the region to provide insight into its impacts and management in the Great Lakes. Seemingly dichotomous literature on round goby roles in these ecosystems, such as differing integration and energetic pathways in foodwebs, locally and regionally unique prey preferences and food habits, differing lakewide, regional, and local abundance levels, current and potential future ecological impacts at micro- to macroscales, mostly thus far unsuccessful management and containment practices, and the generally lacking consensus on mechanisms driving on-going establishment and invasion successes in new habitats creates a need for scientific collaborations and information that fisheries professionals can use to better manage this invasive species. Thus, we hope to attract researchers studying all aspects related to round goby and hope that by increasing knowledge and collaborative efforts through the session that this invasive species can be better managed in the Great Lakes, their basins, and worlds' aquatic habitats.

Climate Change: Sessions 4-6

Session 4. Hydroclimatic Variability in the Great Lakes Region and Its Impact on Aquatic Ecosystems

Chaired by John Lenters, Peter Blanken, Drew Gronewold and Christopher Spence

John Lenters, LimnoTech, 501 Avis Drive, Ann Arbor, MI 48108 USA; Phone: (402) 304-0166; E-mail:

Peter Blanken, Department of Geography, University of Colorado, Boulder, CO 80309 USA; Phone: (303) 492-8310; E-mail:

Drew Gronewold, NOAA / GLERL, 4840 S. State Road, Ann Arbor, MI 48108 USA; Phone: (734) 741-2444; E-mail:

Christopher Spence, Environment Canada, 11 Innovation Blvd., Saskatoon, SK S7N 3H5 Canada; Phone: (306) 975-6907; E-mail:

Variations in climate and hydrology have important implications for the aquatic ecosystems of lakes, streams, and wetlands. This session examines aquatic ecosystems "in transition" in the Great Lakes region and, in particular, the role of hydroclimatic variability in mediating these transitions. Examples include, but are not limited to, the effects of lake level variability on wetland ecosystems, impacts of reduced ice cover and warmer water temperatures on Great Lakes fisheries and harmful algal blooms, and variations in stream hydrology and river ecosystems. We encourage both observational and modeling approaches that examine historical climate variability as well as projections of future climate.

Session 5. Climate, Phenology, and Life History Traits: Extending the Match-Mismatch Hypothesis

Chaired by Cassie May and Troy Farmer

Cassie May, Ohio State University, 1314 Kinnear Rd, Area 200, Columbus, OH 43017 USA; Phone: 614-292-1613; Fax: 614-292-0181; E-mail:

Troy Farmer, Ohio State University, 1314 Kinnear Rd, Area 200, Columbus, OH 43017 USA; Phone: 614-292-1613; Fax: 614-292-0181; E-mail:

Climate can decouple tightly related trophic linkages and disrupt long-standing life history events, creating a stochastic environment for survival, growth and reproduction. One hypothesis that examines the impact of stochastic climatic events on survival is Cushing's (1990) match-mismatch. The classic view of the match-mismatch hypothesis relates larval fish abundance to prey availability. More broadly, the match-mismatch hypothesis can be applied to any physical or biological situation that is dependent on timing and is essential for survival of a species, such as predator avoidance or timing of reproduction. For this session, we invite contributions that explore how variable and changing climatic conditions influence survival by creating opportunities for a match or mismatch in biological or physical processes.

Session 6. Water and Its Climatic Context: Earth System Approaches to the Great Lakes

Chaired by Brent Lofgren and Jia Wang

Brent Lofgren, NOAA/GLERL, 4840 S. State Rd., Ann Arbor, MI 48108 USA; Phone: (734) 741-2383; Fax: (734) 741-2055; E-mail:

Jia Wang, NOAA/GLERL, 4840 S. State Rd., Ann Arbor, MI 48108 USA; Phone: (734) 741-2281; Fax: (734) 741-2055; E-mail:

Lakes, atmosphere, ice, and land processes interact to produce the climatic conditions of this coupled system. These interactions can happen locally through exchanges of heat, moisture, and momentum. They are also linked to larger-scale phenomena like teleconnections on the seasonal time scale, greenhouse gases on the multi-decadal scale, and earth's orbital parameters on the multi-millennial time scale. We welcome contributions that address how lakes interact with aspects of the climate system at all time scales and in lake-influenced regions throughout the world.

Contaminants : Sessions 7-13

Session 7. Emerging issues related to microbes, nutrients, contaminants and toxins

Chaired by Andrea Kirkwood

Andrea Kirkwood, Faculty of Science, University of Ontario Institute of Technology, 2000 Simcoe St.N., Oshawa, ON L1H 7K4 Canada; Phone: (905) 721-8668 ext3622; E-mail:

With the development of advanced molecular and bioinformatic techniques, microbial communities in the Great Lakes Basin can be assessed for their biodiversity and metabolic function at a much higher resolution than ever before. This session will be focusing on emerging issues in the environmental microbiology of the Great Lakes, including their associated tributaries and coastal wetlands. Topics to be covered include: natural microbial communities, human-pathogen sources and fate, avian botulism, source-detection techniques, and antimicrobial resistance (AMR) genes. All presentations related to any aspect of environmental microbiology are encouraged to participate in this session.

Session 8. Bioavailability of Nutrients and Contaminants in Aquatic and Terrestrial Systems

Chaired by Paula Antunes

Paula Antunes, Aquatox, 11B Nicholas Beaver Road, Guelph, ON NIH 6H9 Canada; Phone: (705) 575-9407; Fax: (519) 763-4419; E-mail:

This session will focus on new advances in ecological risk assessment. Relevant talks will include those on contaminant models for trace metals and petroleum hydrocarbons, biological responses to contaminants, and ecosystem changes affecting nutrient and contaminant partitioning, mobility, and bioavailability.

Session 9. Linking Watershed Processes to the Fate and Transport of Pollutants in Urban Waterways

Chaired by Christopher Wellen and Claire Oswald

Christopher Wellen, McMaster University, School of Geography & Earth Sciences, 1280 Main Street West, Hamilton, ON L8S 4K1 Canada; Phone: (647) 239-5138; E-mail:

Claire Oswald, McMaster University, School of Geography & Earth Sciences, 1280 Main Street West, Hamilton, ON L8S 4K1 Canada; Phone: (647) 225-1016; E-mail:

Urban watersheds are complex ecosystems with respect to land use, hydrological processes, and sources of pollutants. While considerable research has been carried out on the hydrological and biogeochemical controls on the migration of agricultural pollutants into waterways, less progress has been made in understanding the role of these factors in urban systems. Here we solicit contributions focused on urban watersheds that address the role of biogeochemical processes and hydrological flow paths in the fate and transport of pollutants. We are particularly interested in studies that also examine urban water quality management in light of this process-based research.

Session 10. Environmental Chemistry, Discoveries, and Biotic Effects of Chemicals of Emerging Concern

Chaired by Bernard Crimmins, Robert Letcher and Daryl McGoldrick

Bernard Crimmins, Clarkson University, 8 Clarkson ave, Potsdam, NY 13699 USA; Phone: (202) 368-6926; E-mail:

Robert Letcher, Environment Canada, 1125 Colonel By Drive, Ottawa, ON K1A 0H3 Canada; Phone: (613) 998-0458; E-mail:

Daryl McGoldrick, Environment Canada, 867 Lakeshore Rd, Burlington, ON L7S 1A1 Canada; Phone: (905) 536-2019; E-mail:

Over the last several years, there has been a considerable focus on contaminants of emerging concern (CECs). The scientific community has invested substantial time and resources to better understand the complexity and burdens of chemical contaminants in environmental compartments of the Great Lakes basin and ecosystems. Monitoring programs from both sides of the US/Canadian border have made great strides identifying past and present anthropogenic substances and/or their degradation products that are persistent and bioaccumulate. Furthermore, with increasing knowledge of what defines the "chemical cocktail" in biota, mixture exposures can lead to changes in chemical stresses, effects and toxicities in exposed organisms. The session will showcase CECs in all of the Great Lakes environmental compartments including; air, water, sediment and biota. This session will also provide a comprehensive and integrated picture of both legacy chemicals (e.g., polychlorinated biphenyls and mercury), which currently drive the majority of fish consumption advisories within the region, CECs and their mutual chemical mitigation challenges in the Great Lakes system.

Session 11. Microplastic Pollution in the Great Lakes Ecosystem

Chaired by Laura Alford

Laura Alford, University of Michigan, NA&ME Building, 2600 Draper Dr., Ann Arbor, MI 48109 USA; Phone: (734) 657-1202; E-mail:

Microplastics are an emerging contaminant, and this session will present the current state of research regarding microplastic pollution in the Great Lakes. Presentations will cover where microplastics have been documented, the adverse ecological effects of microplastics, the research and policies needed to prevent future contamination, and the technology needed to remediate and protect the Great Lakes Ecosystem from microplastic pollution.

Session 12. Emerging Toxins in the Great Lakes: Sources, Fate, Wildlife/Human Exposure, and Impacts

Chaired by Da Chen and An Li

Da Chen, Southern Illinois University, 1125 Lincoln Drive, LSII, Room 251, Carbondale, IL 62901 USA; Phone: (618) 453-6946; E-mail:

An Li, University of Illinois at Chicago, 2121 West Taylor St, Room 304, Chicago, IL 60612 USA; Phone: (312) 996-9597; E-mail:

In recent years, the widespread contamination by numerous "new" organic chemical pollutants have been recognized in the Great Lakes. These emerging pollutants include halogenated and phosphate flame retardants, perfluorinated chemicals, chlorinated paraffins, pharmaceutical and personal care products, etc. Given that our knowledge on their sources, transport, fate, and impacts is still limited, this session is intended to bring together the current knowledge on emerging anthropogenic and natural toxins in the Great Lakes ecosystem, in order to provide insights to the challenges and forethoughts to future research. Topics include, but are not limited to: (1) Sources of emerging toxins and release pathways; (2) The occurrence, spatial distribution, and temporal trends in various environmental compartments; (3) Bioaccumulation, biomagnification and biotransformation; (4) Exposure of sentinel wildlife species; (5) Human exposure pathways and consequences; (6) Toxic, ecotoxic and risk/benefit evaluations; and, (7) innovation and improvement in analytical methods. New findings on related legacy organic chemical pollutants are also welcome.

Session 13. Improving Chemical Selection Tools

Chaired by Dale Phenicie

Dale Phenicie, 402 Lighthouse Lane, Peachtree City, GA 30269 USA; Phone: (770) 487-7585; Fax: (770) 631-7729; E-mail:

Popular chemical selection tools, such as GreenScreen, rely primarily on hazard information regarding chemicals when producing comparative scoring results for alternative formulated product ingredients. This session will identify additional factors, tools that make use of these factors, and the importance of including these factors to obtain a more appropriate evaluation of the likelihood that one chemical vs. another is a "safer" or more desirable choice for avoiding impact on the environment or public health.

Monitoring, Data Management, and Modeling: Sessions 14-19

Session 14. Advances in Monitoring and Forecasting Beach Nearshore Water Quality

Chaired by Sonia Joseph-Joshi and David Rockwell

Sonia Joseph-Joshi, 4840 South State Rd, NOAA Great Lakes Environmental Research Laboratory, Ann Arbor, MI 48108 USA; Phone: (734) 741-2283; Fax: (734) 741-2055; E-mail:

David Rockwell, 4840 South State Road, Ann Arbor, MI 48108 USA; Phone: (630) 219-3537; E-mail:

Anthropogenic land-use, hydrological processes, and meteorological events can influence sources, transport, and loading of bacteria and nutrients into the Great Lakes. Resources managers have to make decisions in real-time, with traditional methods that have a 24 hour time delay. Improved monitoring and forecasting of environmental conditions will provide insight into ecosystem processes occurring in nearshore environments and will act as decision-support tools. Papers presenting investigative studies leading to healthy beaches by identification of bacterial sources, predictive decision support systems enabling beach managers to reduce errors in managing swimming, analytical and sampling methodology optimizing information within a limited budget, and data management systems for beach water quality are invited.

Session 15. Advancement in the Development and Application of Great Lakes Ecosystem Indicators

Chaired by Lizhu Wang, William Taylor and Euan Reavie

Lizhu Wang, International Joint Commission, 100 Ouellette Ave, Windsor, ON N9A 6T3 Canada; Phone: (519) 257-6712; Fax: (519) 257-6740; E-mail:

William Taylor, University of Waterloo, , 200 University Ave, W, Waterloo, ON N2L 3G1 Canada; Phone: (519) 888-4567, Ext. 32556; E-mail:

Euan Reavie, Center for Water and Environment, Univ of Minnesota Duluth, 1900 E Camp St, Ely, MN 55731 United States; Phone: (218) 235-2184; E-mail:

Successful management of the Great Lakes ecosystems relies on an effective evaluation of the tremendous efforts in protection and restoration of the physicochemical and biological integrity of these ecosystems. However, it has been proven challenging to develop and identify a set of indicators for assessing those efforts in such complex and large systems. With recent advancement in our understanding and information development for the Great Lakes ecosystems, we currently have the potential for developing more effective indicators to meet the needs than ever before. Examples of such advancements include the development of the basinewide monitoring strategy by the Council of Great Lakes Governors; the development of apex ecological, human health, and response indicators by the International Joint Commission; the mandates of the Great Lakes Water Quality Agreement of 2012; the State of Great Lakes assessment by the Canadian and U.S. Governments, and many more. These advancements not only improve the acceptability of indicators by both scientific and policy leaders, but also enhance the effectiveness in communication with the public, policy makers, and managers. The goal of this session will be to highlight and discuss ways in which advancement in the development of Great Lakes ecosystem indicators and their applications in the assessment of Great Lakes health and their integrations into management operation and policy making. This session will not only provide researchers with better understanding and technology in assessing the health of the Great Lakes, but also will benefit managers and policy makers to improve their effectiveness in protecting and restoring the Great Lakes.

Session 16. Field and Watershed Modeling: Scaling up the Effects of BMPs in Reducing Pollutant Exports

Chaired by Rem Confesor and George Arhonditsis

Rem Confesor, NCWQR, Heidelberg University, 310 E. Market St., Tiffin, OH 44883 USA; Phone: (419) 448-2204; Fax: (419) 448-2345; E-mail:

George Arhonditsis, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4 Canada; Phone: (416) 208-4858; E-mail:

BMPs are usually implemented at the field- or farm level. Questions abound on what, how extensive, and where the BMPs should be implemented before considerable amount nutrient and sediment reduction is observed at the watershed outlet. This session will focus on the assessment of nutrient and sediment reduction upon implementation of best management practices at field, farm, subwatershed, to watershed and regional scales.

Session 17. Approaches to Nutrient Modeling to Support Decision-making in Great Lakes Embayments

Chaired by Raj Bejankiwar and Jennifer Read

Raj Bejankiwar, 100 Ouellette Ave. 8th Floor, Windsor, ON N9A 6T3 Canada; Phone: (519) 257-6711; E-mail:

Jennifer Read, 214 S. State St., Suite 200, Ann Arbor, MI 48104 USA; Phone: (734) 763-2642; E-mail:

This session is designed to bring together modellers using different approaches to understanding nutrient loading that can inform management decision making, e.g., SWAT, SPARROW, and others, for Great Lakes embayments such as Bay of Quinte, Rochester Embayment, western Basin of Lake Erie, Saginaw Bay and Green Bay. Emphasis would be given to models that address soluble reactive phosphorus and/or how that parameter can be incorporated into models that have traditionally focused on total P.

Session 18. Adaptive Management in the Great Lakes-St. Lawrence River System

Chaired by Jennifer Read, Wendy Leger and Bill Werick

Jennifer Read, Great Lakes Observing System, 229 Nickels Arcade, Ann Arbor, MI 48104 USA; Phone: 734-332-6101; E-mail:

Wendy Leger, Environment Canada, 867 Lakeshore Road, Burlington, ON L7R 4A6 Canada; Phone: (905) 336-4949; Fax: (905) 336-8901; E-mail:

Bill Werick, 14508 Chesterfield Lane, Culpeper, VI 22701 USA; Phone: (540) 829-2362; E-mail:

Recent efforts in the region such as, Great Lakes Water Quality Agreement 2012, International Upper Great Lakes Study (2012) and the Great Lakes Restoration Initiative, have called for an adaptive management (AM) approach. AM requires an on-going understanding of how the system is changing, how ecosystems are evolving in response to observed conditions and management actions, and the development of science-based adaptive strategies to guide shoreline management and ecosystem restoration responses - all within the context of integrated quality and quantity approaches. Presentations would focus on these elements and include case studies of integrated, collaborative approaches, examine hydroclimate science research related to Great Lakes- St. Lawrence River water levels and climate change, monitoring and predicting of ecosystem response in the context of observed hydroclimate changes, and the evaluation of adaptive actions to support a robust and resilient Great Lakes-St. Lawrence River ecosystem.

Session 19. Remote Sensing, Visualization, and Spatial Data Applications for the Great Lakes

Chaired by George Leshkevich and Robert Shuchman

George Leshkevich, NOAA/Great Lakes Environmental Research Laboratory, 4840 South State Road, Ann Arbor, MI 48108 USA; Phone: (734) 741-2265; Fax: (734) 741-2055; E-mail:

Robert Shuchman, Michigan Tech Research Institute, 3600 Green Court, Suite 100, Ann Arbor, MI 48105 USA; Phone: (734) 913-6860; Fax: (734) 913-6880; E-mail:

Contributions are invited on all aspects of remote sensing (including data collection, data analysis/interpretation, data applications, etc.) in the Great Lakes or other large lakes from satellite, airborne, ship, or other platforms. Presentations highlighting the role of remote sensing in interdisciplinary studies are encouraged, as are presentations describing the utilization of new or innovative sensors (such as scatterometer, hyperspectral, or acoustic) or techniques (such as data fusion and data visualization) for research or operational use.

Education, Policy, and Outreach: Sessions 20-26

Session 20. Citizen Science, Outreach, and Education in the Great Lakes Basin

Chaired by Amanda Fracz, Julia Rutledge and Pat Chow-Fraser

Amanda Fracz, 3259 Concession Road 8, Orono, ON L0B 1M0 Canada; Phone: (905) 983-9488; E-mail:

Julia Rutledge, McMaster University, Department of Biology, 1280 Main Street West, Hamilton, ON L8S 4K1 Canada; Phone: (905) 525-9140, Ext. 27641; E-mail:

Pat Chow-Fraser, McMaster University, Department of Biology, 1280 Main Street West, Hamilton, ON L8S 4K1 Canada; Phone: (905) 525-9140, Ext. 27338; E-mail:

This session will focus on topics around education and outreach programs that target citizens to get involved in long term environmental monitoring in order to build more resilient watersheds and communities.

Session 21. Towards Governance Indicators for the Great Lakes Region

Chaired by Carolyn Johns and Gail Krantzberg

Carolyn Johns, 350 Victoria Street, Ryerson University, Toronto, ON M5B 2K3 Canada; Phone: (416) 979-5000, Ext. 6146; E-mail:

Gail Krantzberg, 1280 Main Street W, McMaster University, Hamilton, ON L8S4L8 Canada; Phone: (905)525-9140, Ext. 22153; E-mail:

The goal of this session and panel is to discuss the opportunities and challenges related to the development of governance indicators for the Great Lakes region. In 2012 the Canadian and US federal governments signed a new Great Lakes Water Quality Agreement. While this is a significant achievement, 40 years after the previous agreement, governance capacity to achieve well-articulated goals remains a significant challenge. The most recent SOLEC report in 2011 and the International Joint Commissions'16th Biennial report in 2013 include a range of chemical, physical and biological indicators and 'performance' indicators. Despite recent attempts to incorporate governance indicators; some capacity to produce policy goals and agreements; the proliferation of transboundary and domestic institutions with mandates to implement agreements; and some notable governance successes, significant challenges related to implementing the GLWQA and other agreements remain. This panel will focus on research and practice related to developing governance indicators designed to assess current governance capacities and address future governance challenges.

Session 22. Great Lakes Agreement and Compact, Science to support action and issues in human dimensions

Chaired by James Nowlan

James Nowlan, Ontario Ministry of Natural Resources, 300 Water Street, 5th Floor, North Tower, Peterborough, ON K9J 8M5 Canada; Phone: (705) 755-1524; Fax: (705) 755-1957; E-mail:

On December 13, 2005 the eight Great Lakes states and two provinces signed the Great Lakes-St. Lawrence River Basin Sustainable Water Resources Agreement, and the eight states signed a companion Compact. The Agreement and Compact ban diversions from the Great Lakes Basin with limited exceptions, requires a strengthening of water conservation throughout the basin, and seeks to build the information and science that is needed to support sound water management decisions essential to maintaining the integrity of the Basin ecosystem. This session will focus on the information and science commitments as they are outlined in Article 302 of the Agreement and Section 1.4 of the Compact, and in particular on initiatives related to our scientific understanding of the waters and cumulative impacts of water use on basin water resources and ecosystems.

Session 23. Science to Support Action: Translating Priorities into Research and Management Action

Chaired by Christine Mayer, Jeff Tyson and Jeremy Pritt

Christine Mayer, University of Toledo Lake Erie Center, 6200 Bayshore Rd, Oregon, OH 43616 USA; Phone: 4195308377; Fax: 4195308399; E-mail:

Jeff Tyson, ODNR, Division of Wildlife, 305 E. Shoreline Dr., Sandusky, OH 43440 USA; Phone: 419-625-8062; E-mail:

Jeremy Pritt, University of Toledo Lake Erie Center, 6200 Bayshore Rd, Oregon, OH 43616 USA; Phone: 4195308386; Fax: (419) 530-8399; E-mail:

State and Provincial management agencies across the Great Lakes set research priorities as part of coordinated processes. However, these priorities can be difficult to translate into research projects that can be implemented as management actions. Factors contributing to this difficulty include both lack of clear research directives and limited control by managers over factors that affect the fishery and ecosystem. Presenters will include managers and researchers who discuss specific research strategies that can address management, conservation, and restoration actions across the Great Lakes. Additionally, we will feature case studies where action has been successfully supported by research.

Session 24. Human Dimensions of Great Lakes Natural Resources

Chaired by John Stoll

John Stoll, University of Wisconsin-Green Bay, 2420 Nicolet Drive, MAC B310, Green Bay, WI 54311-7001 USA; Phone: (920) 465-2358; Fax: (920) 465-2791; E-mail:

This session focuses upon the interaction of people in determining policy, minimizing challenges in policy implementation, and understanding human dimensions which lead to positive or negative judgements regarding resource management decisions. The goal is to better understand how to garner broad-based public support for Great Lakes policy research and strategies. Central to this examination is understanding why resource users are a key element of resource management, without whom science will be ineffective in establishing sound, long-term protection of the Great Lakes system.

Session 25. Exploring the Idea of the Great Lakes as 'Commons'

Chaired by Nancy Auer

Nancy Auer, Michigan Technological University, 740 DOW, Biological Sciences, 1400 Townsend Drive, Houghton, MI 49931 USA; Phone: (906) 487-2353; Fax: (906) 487-3167; E-mail:

The waters of the Great Lakes are a vital part of ecosystems on which we rely and are part of the heritage of all those within the basin and those generations to come. Yet are these lakes seen and managed as having shared, 'Commons' importance? This session will explore the concept and importance of 'commons', why the Great Lakes are not being managed as a commons now, who's views are missing from a commons voice, how we can begin to 'vision' informing more people about their personal stake in use, protection and the future of these waters, as well establishing reverence for the beauty, spirit and interconnectedness of all life in the basin.

Session 26. Outreach and Education

Chaired by Rochelle Sturtevant

Rochelle Sturtevant, NOAA - GLERL, 4840 South State Road, Ann Arbor, MI 48108 USA; Phone: (734)741-2287; E-mail:

Without up-to-date information citizens can not make informed decisions concerning the sustained uses of Great Lakes resources and the conservation and protection of those resources. To have maximum impact, advances in science must be shared with decision makers, educators, students and citizens in terms they can understand. encourage the submission of case studies, applied research and examples of the successful transfer of science based information and technology. Papers evaluating the impact (success or failure) of education and outreach programs are welcome.

Fish and Fisheries: Sessions 27-29

Session 27. Great Lake Esocids: Overcoming Challenges and Future Status of Important Apex Predators

Chaired by John Paul Leblanc

John Paul Leblanc, McMaster University, Department of Biology, Hamilton, ON L8S 4K1 Canada; Phone: 905-525-9140, Ext. 27461; Fax: 905-522-6066; E-mail:

The Canadian and American borders of the Great Lakes support many populations of muskellunge and northern pike (esocids), apex predators that regulate the near-shore fish communities. Although angling pressures differ between muskies and pike, both fisheries contribute substantially to local and regional economies. Many of the historically self-reproducing esocid populations in the Great Lakes are in decline due to disease, selective harvest and over-exploitation, climate change, establishment of invasive species, and habitat loss and alterations. We invite talks that focus on current and future challenges in managing esocid populations in the Great Lakes basin, and share information on past or on-going restoration projects.

Session 28. Advantages of Bayesian Methods for Aiding Fisheries Decisions in Transitioning Ecosystems

Chaired by Yan Jiao and Thomas Nudds

Yan Jiao, Virginia Tech, Department of Fish and Wildlife Conservation, Blacksburg, VI 24061-0321 USA; Phone: (540) 231-5749; Fax: (540) 231-7580; E-mail:

Thomas Nudds, Department of Integrative Biology, University of Guelph, Guelph, PA N1G 2W1 Canada; Phone: (519) 824-4120, Ext. 53074; E-mail:

Bayesian analyses are providing innovative new solutions to research and policy problems commonly faced by environmental scientists and decision makers. Two distinct advantages of Bayesian analyses are that they allow the incorporation of expert knowledge and knowledge from other similar situations in the form of the prior, and they characterize total uncertainty in a compact and useful way via the posterior distribution. Papers are sought which explore the use of Bayesian analyses in stock assessment, community ecology, and environmental science. Topics can include:  1. uses of Bayesian hierarchical modelling to learn about fish population dynamics, fisheries ecology, fisheries dynamics, and environmental processes;  2. uses of Bayesian approaches to account for conflicting stakeholder preferences, inform model choice, and account for model choice uncertainty in risk and policy evaluation;  3. Bayesian analyses that have elicited expert knowledge and synthesized information contained in large data sets;  4. Bayesian network analyses that integrate different types of knowledge (e.g., biological, sociological, and economic).

Session 29. Salmonid Feeding Ecology in Changing Great Lakes Food Webs

Chaired by Tim Johnson, Gord Paterson and Aaron Fisk

Tim Johnson, Ontario Ministry of Natural Resources, 41 Hatchery Lane, Picton, ON K0K 2T0 Canada; Phone: (613) 476-7718; Fax: (613) 476-7131; E-mail:

Gord Paterson, SUNY-ESF, Syracuse, NY 13210 USA; Phone: (315) 470-6942; Fax: (315) 470-6934; E-mail:

Aaron Fisk, GLIER, University of Windsor, Windsor, ON N9B 3P4 Canada; Phone: (519) 253-3000, Ext. 4740; Fax: (519) 971-3616; E-mail:

Salmonids represent the dominant apex predator in the Great Lakes ecosystem as well as supporting important recreational fisheries. Changes in composition and abundance of prey fish and lower trophic levels have affected the distribution, behaviour, and feeding ecology that is ultimately reflected in growth and production of these important species. Presentations will include descriptive and modelling studies describing and comparing diet (gut content, stable isotopes), behaviour (tagging, foraging), bioenergetics, and production.

Nearshore Zone: Sessions 30-34

Session 30. Reptile and Amphibian Conservation in a Changing Landscape

Chaired by Chantel Markle

Chantel Markle, McMaster University, Department of Biology, 1280 Main St. West, Hamilton, ON L8S 4K1 Canada; Phone: (905) 466-4252; E-mail:

Within the Great Lakes basin, increasing development and landscape alterations have contributed to the decline of reptile and amphibian populations. This session will focus on conservation efforts and approaches utilized to protect herpetofauna in changing ecosystems. It will be a multi-disciplinary session and a wide variety of topics are encouraged.

Session 31. Ecology in Tributaries of the Great Lakes

Chaired by Chris Pennuto

Chris Pennuto, Buffalo State University, 1300 Elmwood Avenue, Buffalo, NY 14222 USA; Phone: (716) 878-4105; E-mail:

This session will bring together researchers working in flowing waters within the GL watershed. Tributaries serve to link the Great Lakes to their landscapes and many in-lake processes and phenomenon are impacted by tributary conditions. I welcome talks on a wide range of topics like fish spawning/movement into tributaries, tributary nutrient inputs, tributaries as refugia from invasive species, and contributions to water level stability.

Session 32. Addressing Coastal/Nearshore Issues with an Ecosystem and Process-Based Framework

Chaired by Lisa Fogarty and Paul Seelbach

Lisa Fogarty, U.S.G.S., 6520 Mercantile Way Suite 5, Lansing, MI 48911 USA; Phone: 517-887-8968; Fax: 517-887-8937; E-mail:

Paul Seelbach, U.S.G.S., 1451 Green Rd, Ann Arbor, MI 48105 USA; Phone: 734-214-7253; E-mail:

The coastal/nearshore zone (NCZ) of the Great Lakes, where land, rivers, and streams meet the open lake waters, is a complex and dynamic system that provides many important ecosystem services to the region. NCZ issues such as algal blooms, beach closings, botulism outbreaks, fish/wildlife consumption risks, drinking water quality, reduced fish and wildlife production, and healthy habitat are influenced by a multitude of different factors and processes. This session will be comprised of example applications of a NCZ framework that focuses on key hydrologic, biologic, geomorphic and societal processes and interaction between the different geographic zones (watersheds, NCZ, open-lake) to better address NCZ issues.

Session 33. Transitions at the Water's Edge: Changing Carbon and Nutrient Cycling in Coastal Ecosystems

Chaired by Bopi Biddanda and Jim Cotner

Bopi Biddanda, Grand Valley State U, 740 W. Shoreline Dr., Muskegon, MI 49441 USA; Phone: (616) 331-3978; Fax: (616) 331-3864; E-mail:

Jim Cotner, Univ. Minnesota, 1986 U. Buford Circle, St. Paul, MN 55108 USA; Phone: (612) 625-1706; Fax: (612) 624-6777; E-mail:

Freshwater ecosystems occurring at the land margin are now considered hotspots of carbon and nutrient processing of global significance. In recent years, biogeochemical and ecological processes in the coastal waters have been radically altered by ongoing climate change, human activity and the spread of invasive species. However, our understanding of the underlying mechanisms behind these changing trends in ecosystem productivity, inorganic nutrient cycling, organic matter loading and food web disruptions remain quite poor. Therefore, this session welcomes explorations of land to lake linkages at multiple levels (time scales, species, communities and ecosystems) in response to natural and/or anthropogenic-driven changes in the cycling of inorganic nutrients and organic matter in coastal ecosystems everywhere.

Session 34. Strategic Restoration of Aquatic Habitat: Are We Doing the Right Things in the Right Place?

Chaired by Michele Wheeler

Michele Wheeler, U.S. Fish and Wildlife Services, 2800 Lake Shore Drive East, Ashland, WI 54806 USA; Phone: (715) 682-6185, Ext. 19; Fax: (715) 682-8899; E-mail:

Successful restoration of aquatic habitat depends on identifying the root cause of habitat degradation, appropriately characterizing stressors and implementing relevant best management practices. The Great Lakes Restoration Initiative provides an unprecedented opportunity to invest in improving the conditions in the Great Lakes. Now 3 years into the initiative, what is working? What's not? What is our collective impact? This session will bring together local practitioners, managers and researchers to provide local, regional and basinwide perspectives on restoration efforts and to highlight success stories, including efforts from tributaries to nearshore. This session will also work to connect natural resource professionals with resources for improved conservation delivery. This session will be led by the Great Lakes Basin Fish Habitat Partnership (GLBHFP). Formed in 2009, the GLBFHP is part of a nationwide effort to protect, restore and enhance fish habitat through partnerships that foster conservation. To date we have awarded 2.3 million dollars to Great Lakes restoration projects throughout the basin.

Physical Processes and Biological Coupling: Sessions 35-38

Session 35. Physical Processes and Biological Dynamics in the Changing Great Lakes of the World

Chaired by Ralph Smith, Kristen Fussell and Stu Ludsin

Ralph Smith, Biology Dept., University of Waterloo, Waterloo, ON N2L 3G1 Canada; Phone: 519-888-4567, Ext. 32468; E-mail:

Kristen Fussell, Aquatic Ecology Laboratory, Dept. E.E.&O. Biology, Ohio State University, Columbus, OH 43212 USA; Phone: (614) 292-1613; E-mail:

Stu Ludsin, Aquatic Ecology Laboratory, Dept. E.E.&O. Biology, Ohio State University, Columbus, OH 43212 U.S.A.; Phone: (614) 292-1613; E-mail:

Physical processes have been shown to be important drivers of ecosystem dynamics in the Great Lakes of the world. How important these processes will be in the future remains uncertain, however, owing to expected interactions between climate change, which is anticipated to continue to alter the physical environment, and biological change caused by other anthropogenic drivers such as species introductions, exploitation, habitat destruction, and altered nutrient regimes. In turn, the need exists for a stronger and more predictive understanding of how physical processes (e.g., thermal stratification, water circulation, river inflows, storms) shape biological phenomena, including species distributions and abundance, food web interactions, and community dynamics. This session welcomes contributions that use field observations, experiments, modeling, or their combination to strengthen our knowledge of the mechanisms and outcomes of physical-biological interactions as they influence large-lake ecosystems. Studies presenting advances in relevant modeling or observational tools also are welcome.

Session 36. Vertical Restructuring of the Great Lakes: Consequences of Deep Chlorophyll Layers

Chaired by Lars Rudstam, Brian Weidel and James Watkins

Lars Rudstam, Cornell University, 900 Shackelton Point Road, Bridgeport, NY 13030 USA; Phone: 3156339243; Fax: 3156332358; E-mail:

Brian Weidel, USGS Lake Ontario Biological Station, Oswego, NY 13126 USA; Phone: 315 343 3951; E-mail:

James Watkins, Cornell University, 900 Shackelton Point Road, Bridgeport, NY 13030 USA; Phone: 3156339243; Fax: 3156332358; E-mail:

Production in and below the thermocline can be important in deep oligotrophic lakes. Deep chlorophyll layers are common in many such lakes and contribute to primary and secondary production. As many of the Laurentian Great Lakes are becoming more oligotrophic with increasing water clarity, deep production may be increasing leading to a vertical restructuring of the pelagic zone. However, the proportion of total production in these deep layers is not known, nor is the extent that zooplankton, mysids and fish use this resource and contribute to the nutrient supply of the deep phytoplankton known. The original fauna of the Laurentian Great Lakes was likely adapted to utilize this resource. This special session welcomes contributions for all of the world's lake with the hope to find both interesting similarities and illuminating differences among these systems.

Session 37. Coupled Physical and Biogeochemical Processes in Lakes

Chaired by Joe Ackerman, Mathew Wells and Liset Cruz-Font

Joe Ackerman, Department of Integrative Biology University of Guelph, 2468 Science Complex, Guelph, ON N1G 2W1 Canada; Phone: 519-824-4120, Ext. 58268; E-mail:

Mathew Wells, Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C1A4 Canada; Phone: (416) 208-4879; E-mail:

Liset Cruz-Font, Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C1A4 Canada; Phone: (416) 208 4879; E-mail:

This session will focus on coupled physical and biogeochemical processes that occur in the pelagic and benthic zones of lakes. We encourage contributions than examine the link between physical dynamics and the biology, chemistry, and/or biogeochemistry of limnological processes. Such links include: hydrodynamically mediated sexual reproduction, propagule disperal and recruitment, and resource acquisition; the effect of thermal variation on environmental cues used be organisms to initiate behaviour, movements and other responses; and the fate and transport of nutrients central to water quality.

Session 38. Physical Processes in Large Lakes

Chaired by Leon Boegman, Ryan Mulligan, Dima Beletsky, Chin Wu, Mathew Wells, Marek Stastna and Eric Anderson

Leon Boegman, Queen's University, Kingston, ON K7L 3N6 Canada; Phone: 613.533.6717; E-mail:

Ryan Mulligan, Queen's University, Kingston, ON K7L 3N6 Canada; Phone: (613) 533-6503; E-mail:

Dima Beletsky, University of Michigan, Ann Arbor, MI 48108-9719 USA; Phone: 734-741-2360; E-mail:

Chin Wu, University of Wisconsin-Madison, Madison, WI 53706 USA; Phone: (608) 263-3078; E-mail:

Mathew Wells, University of Toronto, Toronto, ON M1C 1A4 Canada; Phone: 416 208 4879; E-mail:

Marek Stastna, Waterloo University, Waterloo, ON N2L 3G1 Canada; Phone: (519) 888-4567, Ext. 33529; E-mail:

Eric Anderson, NOAA / GLERL, Ann Arbor, MI 48108-9719 USA; Phone: (734) 741-2293; E-mail:

Physical processes in lakes are coupled to ecosystems and changes in the physical drivers can lead to ecosystem transition (e.g., climate change). This session will feature talks on large lake hydrodynamics (i.e., waves, temperatures, currents, water levels, mixing), with a special focus on processes undergoing transition.

Specific Lakes and Places: Sessions 39-45

Session 39. Lake Erie in Transition: Current Nutrient Science and Implications for Management

Chaired by Jeff Reutter and Carol Miller

Jeff Reutter, Ohio State University, 1314 Kinnear Road, Columbus, OH 43212 USA; Phone: (614) 292-8949; E-mail:

Carol Miller, Wayne State University, Detroit, MI 48202 USA; Phone: (313) 577-3842; E-mail:

Forty years after successfully tackling eutrophication in Lake Erie, severe algal blooms and hypoxia are back. This session will explore current nutrient-related science associated with Lake Erie, and highlight their management implications. Topics would include but not be limited to external loadings, trends in harmful and nuisance algal blooms and hypoxia, efficacy of beneficial management practices, and establishing loading targets using modeled response curves. Linkages to other large nutrient related initiatives will be made.

Session 40. Lake Huron's Altered Foodweb

Chaired by James Johnson, Henry Vanderploeg and Scott McNaught

James Johnson, Michigan DNR Alpena Fishery Research Station, 160 East Fletcher, Alpena, MI 49707 USA; Phone: (989) 356-3232, Ext. 2571; Fax: (989) 356-1951; E-mail:

Henry Vanderploeg, NOAA Great Lakes Environmental Research Lab, 4840 S. State Rd., Ann Arbor, MI 48108-9719 USA; Phone: (734) 741-2284, Ext. 2292; Fax: (734) 741-2055; E-mail:

Scott McNaught, Central Michigan University, 153 Brooks Hall, Mt. Pleasant, MI 48859 USA; Phone: (989) 774-1335; Fax: (989) 774-3462; E-mail:

In the 2012 Year of Lake Huron Coordinated Science and Monitoring Initiative (CSMI), sponsored by the US EPA, scientists from the United States and Canada examined recent changes in the upper and lower food webs nearshore and offshore. They hypothesized that there would be starvation of the offshore pelagic food web caused by decreased phosphorus loading and dreissenid mussel ecosystem engineering. In addition, they hypothesized that a more productive fishery for nearshore species would develop. A variety of projects and technologies were use to examine these hypotheses. Our session will examine the current status of Lake Huron--the Great Lakes' most understudied lake--and see if these hypotheses are correct.

Session 41. Responses of Fish and Fisheries to the Recent Food Web Changes in Lake Huron

Chaired by James Bence and Ji He

James Bence, Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI 48864 USA; Phone: (517) 432-3812; E-mail:

Ji He, Alpena Fisheries Research Station - Michigan DNR, 160 East Fletcher Street, Alpena, MI 49707 USA; Phone: (989) 356-3232; E-mail:

The Lake Huron fish community has undergone major changes over time and experienced major changes that became evident during 2002-2004 when alewife populations declined, followed by a collapse of the Chinook Salmon fishery. Major changes were seen across the native and exotic fish community in recruitment, growth, diets, and life history, with ramifications for recreational and commercial fisheries that continue to play out. This symposium will focus on the nature, causes, and implications of the major changes that have and are occurring.

Session 42. Exploring the Functioning of Lake Ontario Ecosystem: An Intensive Field Year Perspective

Chaired by Tom Stewart, Lars Rudstam and Mohi Munawar

Tom Stewart, Lake Ontario Management Unit, RR #4, Picton, ON K0K 2T0 Canada; Phone: (613)476-1749; Fax: (613) 476-7131; E-mail:

Lars Rudstam, Cornell Biological Field Station, 900 Shackelton Point Road, Bridgeport, NY 13030 USA; Phone: (315) 633-9243, Ext. 25; Fax: (315) 633-2358; E-mail:

Mohi Munawar, Great Lakes Laboratory for Fisheries & Aquatic Sciences, Fisheries & Oceans Canada, 867 Lakeshore Road, Burlington, ON L7R 4A6 Canada; Phone: (905) 336-4867; Fax: (289) 464-6071; E-mail:

Lake Ontario has undergone many ecological changes including eutrophication, contamination, phosphorus abatement, exotic species invasion and climate change. Diverse lake wide investigations have been carried out in Lake Ontario during the past four decades. The most recent study was organized as a part of the Cooperative Science and Monitoring Initiative (CSMI) in 2013. This was a bi-national, multiagency, multi-trophic and whole lake monitoring program. Major themes for the 2013 investigations included nutrient loading and fate, spatial distribution of microbial-plankton communities, primary/secondary production, fish distribution and diet, trophic transfer efficiency, food web mass balance analysis and emerging in-situ sensor technology. In this session we will attempt to evaluate the current status of the lake, provide an overview of the CSMI program as well as the lessons learned from developing a large scale program. The session is expected to include preliminary findings and syntheses. We invite submissions from both CSMI investigations and the broader research community for a better understanding of the functioning of Lake Ontario and the realization of collaborative whole-lake scale syntheses.

Session 43. State of the Hamilton Harbour Ecosystem: Health, Integrity, and Management

Chaired by Mohiuddin Munawar, John Hall and Kristin O'Connor

Mohiuddin Munawar, Fisheries & Oceans Canada, 867 Lakeshore Rd., Burlington, ON L7R 4A6 Canada; Phone: (905) 336-4867; E-mail:

John Hall, Environment Canada, 867 Lakeshore Rd., Burlington, ON L7R 4A6 Canada; Phone: (905) 336-6465; E-mail:

Kristin O'Connor, Hamilton Harbour Remedial Action Plan, Environment Canada, 867 Lakeshore Rd., Burlington, ON L7R 4A6 Canada; Phone: (905) 336-6278; E-mail:

Hamilton Harbour is an extremely degraded ecosystem in western Lake Ontario which has been identified for remediation under the terms of the Great Lakes Water Quality Agreement. Eutrophication, contaminants and sediment toxicity are the most severe among the multiple stressors affecting the health of this ecosystem. The 2012 Status Summary of Beneficial Uses identifies 8 specific impairments with 4 additional impairments being in need of further assessment. Accordingly, extensive research and monitoring programs were established under the auspices of the Remedial Action Plan by multiple government agencies, universities and local interest groups, resulting in various management strategies being developed and implemented. Multi-disciplinary, multi-trophic ecosystemic studies have been undertaken in the harbour since the 1970s to develop remediation and management strategies. This session provides an ideal opportunity to highlight long term ecosystem health and / or management efforts including emerging tools and techniques geared towards the remediation, restoration and recovery of the harbour.

Session 44. A Grand Connection: The Nexus of Water Research and Management in the Grand River Watershed

Chaired by Martin Keller, Claire Holeton and Sandra Cooke

Martin Keller, Grand River Conservation Authority, 400 Clyde Road, PO Box 729, Cambridge, ON N1R 5W6 Canada; Phone: (519) 621-2763, Ext. 2303; E-mail:

Claire Holeton, Grand River Conservation Authority, 400 Clyde Road, PO Box 729, Cambridge, ON N1R 5W6 Canada; Phone: 5196212763, Ext. 2295; E-mail:

Sandra Cooke, Grand River Conservation Authority, 400 Clyde Road,PO Box 729, Cambridge, ON N1R 5W6 Canada; Phone: 5196212763, Ext. 2224; E-mail:

This session highlights how research and management approaches intersect in the Grand River watershed to identify water issues and use the best available science to develop management strategies. The river is the largest Canadian tributary to Lake Erie with large effects on nearshore conditions, so plans for improvements in the watershed are also an important component of plans to address related lake issues. Talks will be co-presented to illustrate both a research and management perspective; topics include the characterization and management of nutrients, target setting and understanding the needs of a healthy aquatic ecosystem, biomonitoring to predict the effects of cumulative stressors and contaminants of emerging concern, as well as river-lake linkages in the nearshore and coastal wetlands.

Session 45. Lake Simcoe: An Ecosystem in Transition

Chaired by Joelle Young, Erin Dunlop and Lew Molot

Joelle Young, Ontario Ministry of the Environment, 125 Resources Rd, Toronto, ON M9P 3V6 Canada; Phone: (416) 327-4864; E-mail:

Erin Dunlop, Ontario Ministry of Natural Resources, 2140 East Bank Drive, Peterborough, ON K9J 7B8 Canada; Phone: (705) 755-2296; E-mail:

Lew Molot, York University, Faculty of Environmental Studies, 4700 Keele Street, Toronto, ON M3J 1P3 Canada; Phone: (416) 736-2100, Ext. 22613; E-mail:

Lake Simcoe, the largest inland lake in south-central Ontario, Canada , has experienced many changes over the past 200 years, especially from changes in land use, species invasions, high phosphorus loading and climate change. Over the past 2 decades, with provincial, federal, municipal and non-governmental support, much research and on-the-ground efforts towards improving the lake and its watershed have been implemented. This Lake Simcoe special session will include summaries of the long-term monitoring and research on this lake.

Nutrients: Sessions 46-48

Session 46. Modeling Nutrient Transport to the Great Lakes: Approaches and Management Implications

Chaired by Alex Mayer and Dale Robertson

Alex Mayer, Department of Civil & Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931 USA; Phone: (906) 487-3372; Fax: (906) 487-2943; E-mail:

Dale Robertson, Wisconsin Water Science Center, US Geological Survey, 8505 Research Way, Middleton, WI 53562 USA; Phone: (608) 821-3867; Fax: (608) 821-3817; E-mail:

Several approaches are being taken for modeling nutrient transport to the Great Lakes, including statistical, process-based, and hybrid methods. Results from these models can be valuable for important management assessments and decisions, including determining whether target lake loads are being met, prioritizing locations for reducing nutrient sources, and assessing the relative importance of specific types of nutrient source to determine actions needed to reduce nutrient loading. Since modeling results do not always agree, it is critical that we understand the mathematical basis, sources of data, and benchmarking efforts underlying the modeling efforts.

Session 47. Magnitude, Timing, and Pathways of Nutrient and Sediment Loading: The Importance of Season

Chaired by Krista Chomicki, Tanya Long and Mohamed Mohamed

Krista Chomicki, Toronto and Region Conservation Authority, 5 Shoreham Drive, Downsview, ON M3N 1S4 Canada; Phone: (416) 235-6567; E-mail:

Tanya Long, Ontario Ministry of Environment, 125 Resources Rd, Toronto, ON M9P 3V6 Canada; Phone: (416) 235-6247; E-mail:

Mohamed Mohamed, Ontario Ministry of the Environment, 125 Resources Rd, Toronto, ON M9P 3V6 Canada; Phone: (416)529-8275; E-mail:

Season influences both the magnitude and pathways by which nutrients and sediments are lost to streams and other receiving waters. Climate change will likely affect both the seasonal distribution of precipitation and the intensity of storm events, thereby affecting the timing of nutrient delivery. This session will explore the influence of season in nutrient and sediment loading to streams and other receiving waters in a variety of watershed types such as urban, agricultural, and forested environments. A special focus will be given to the effects of snow melt and winter loading.

Session 48. Divergent Patterns in Great Lakes Primary Production: Characteristics, Causes, and Consequences

Chaired by Sue Watson and Ralph Smith

Sue Watson, CCIW, Environment Canada, 867 Lakeshore Rd, Burlington, ON L7R 4A6 Canada; Phone: (905) 336-4759; E-mail:

Ralph Smith, Dept Biology, University of Waterloo, 200 University Ave. W, Waterloo, ON N2L 3G1 Canada; Phone: (519) 888-4567, Ext. 32468; E-mail:

Over the past decade the Laurentian and other Great Lakes have experienced a dichotomous pattern in primary production. In some areas, there has been an increase in nuisance and harmful algal blooms, both planktonic (e.g. Microcystis, Anabaena, Aphanizomenon) and benthic (e.g. Cladophora, Lyngbya). These blooms can affect local shorelines and embayments or extend across lake basins - as seen, for example, in Lake Erie and Lake Winnipeg. Other areas (e.g. offshore L. Michigan and Huron) are trending to dramatically low levels of phytoplankton production. Climate, land use, and invasive species are among the factors likely to be driving changes in primary producers, which can in turn be expected to generate feedbacks on other aspects of ecosystem function. This session welcomes contributions that use observations, experiments, models or combinations of approaches to provide insight into the sometimes paradoxical trends in primary producers in Great Lakes of the world. Contributions that demonstrate or apply new approaches to understanding primary producer dynamics, productivity, or implications for ecosystem function are also welcome.

General Contributions: Session 49

Session 49. Fish ecology

Chaired by Patricia Chow-Fraser

Patricia Chow-Fraser, McMaster University, Department of Biology, 1280 Main Street West, Hamilton, ON L9K 1B6 Canada; Phone: (905) 525-9140, Ext. 27338; Fax: (905) 522-6066; E-mail:

This session will contain papers of a general nature regarding fish ecology and biology

Special: Session 50

Session 50. Session Honoring Contributions of David M. Dolan to Great Lakes Research

Chaired by Joseph DePinto, Martin Auer and Steven Chapra

Joseph DePinto, LimnoTech, 501 Avis Drive, Ann Arbor, MI 48108 USA; Phone: 734-332-1200; E-mail:

Martin Auer, Dept. of Civil and Environmental Engineering, 1400 Townsend Drive, Michigan Technological University, Houghton, MI 49931-1295 USA; Phone: 906-487-2799; E-mail:

Steven Chapra, Department of Civil and Environmental Engineering, Tufts University, Medford, MA 02155 USA; Phone: 617-627-3654; E-mail:

This session will include talks from colleagues of Dr. David M. Dolan honoring his many contributions to Great Lakes research over his 38 years of IAGLR membership. Much of his work was related to phosphorus loading and cycling, water quality modeling, and environmental statistics; talks related to these topics are welcomed. We would especially welcome speakers who worked with Dave over the years.