Research at the Great Lakes Center focuses on the ecology and ecosystems of the Great Lakes and their tributaries. GLC research scientists, affiliates at Buffalo State University, and collaborators from other institutions bring diverse areas of expertise to the Great Lakes. Such expertise enables scientists to provide policymakers with information, which in turn promotes more informed decisions about ways to protect water quality, support the survival of native species, manage nuisance invasive species, monitor carcinogens in the food web, and many more. Research also contributes to scientific understanding of the complex interactions that occur in aquatic ecosystems around the world.
Much of the research done by GLC scientists is carried out from the Field Station and focuses on aquatic ecology and ecosystems. This includes large multi-agency studies of Lake Erie as well as graduate and undergraduate research projects.
The Great Lakes Center has several monitoring efforts ranging from a continuously monitoring buoy, to a biweekly lower trophic level sample in Lake Erie, to an intensive benthic sampling trip that spans all five Great Lakes.
Some of our research focuses on conservation of threatened freshwater species. Sasha Karatayev and Lyubov Burlakova are working on projects aimed at identifying threatened populations and genetic diversity of native freshwater mussels in Texas. We also completed a project aimed at understanding the habitat use and feeding ecology of the lake sturgeon in the Lower Niagara River.
The Great Lakes Center conducts research to study the effects of species that have already invaded the Great Lakes and their tributaries, as well as to identify species which have the potential to invade. Species of interest include zebra and quagga mussels and their parasites, round gobies, alewives, and Hemimysis anomala.
The EPA Great Lakes National Program Office (GLNPO) Biology Monitoring Program is designed to provide managers access to biological data on zooplankton and benthos to support decision-making. In collaboration with Cornell University, we collect benthos (Buffalo State), zooplankton, and chlorophyll data (Cornell University) across the five Great Lakes from 2012 to 2022, analyze this data, and make it available to environmental and fisheries managers. The project has been renewed through 2028.
Additional research projects include impact of dreissenids on the lower food web, development of remote sensing methods, evaluation of early detection systems for invasives, and evaluation of biotic indices of ecosystem health. The project will be conducted in association with the Cooperative Science and Monitoring Initiative (CSMI) years in each of the Great Lakes.
Benthic data collected in 2012-2021 have been submitted and approved by the U.S. EPA Great Lakes National Program Office. These data are the basis for individual lake reports as well as reports for the State of the Great Lakes. Seventeen years of GLNPO Biology Monitoring Program benthic data were recently analyzed by Burlakova et al. (Burlakova et al., 2018) to reveal temporal and spatial trends in benthic community structure across the lakes. In 2018, we published a Special Issue containing 18 papers in the Journal of Great Lake Research (“U.S. EPA GLNPO Long-Term Monitoring of the Laurentian Great Lakes: Approaches, achievements and lessons learned,” Eds. Burlakova, L., A. Karatayev, L. Rudstam, and E. Hinchey). Together with our Cornell collaborators, we have published over 45 papers, presented over 120 talks at regional and international meetings, wrote 6 reports and organized 22 special scientific sessions on Great Lakes monitoring at national and international meetings. Some of the publications and reports of the 2014-2019 CSMI benthic surveys are available on the Publications page.
Also, check out this video of a nighttime ponar grab, taken during August 2013 while our researchers were aboard the R/V Lake Guardian. (Video credit: US EPA.)
Photo galleries: Monitoring Great Lakes benthos from the R/V Lake Guardian 2013, Great Lakes Benthos Monitoring 2016, GLC Alternative Work Plan 2021
News articles: Newsletter #21: GLC samples Great Lakes amid challenging weather
The Great Lakes Monitoring Program by Great Lakes National Program Office includes both collection of samples from 57 long-term stations sampled every year and a much more detailed survey conducted on each lake every 5 years within Coordinated Science and Monitoring Initiative (CSMI). We participated in these surveys in 2014 (Lake Erie), 2015 (Lake Michigan), 2016 (Lake Superior), 2017 (Lake Huron), 2018 (Lake Ontario), 2019 (Lake Erie), 2021 (Lake Michigan), and 2022 (Superior and Huron). The Lake Michigan survey was cancelled in 2020 due to COVID-19 restrictions and collected in 2021 instead. Both Lake Superior and Lake Huron CSMI surveys were collected in 2022.
Read the report on the Publications page.
Photo gallery: CSMI Lake Huron 2017, CSMI Lake Ontario 2018
News articles: Newsletter #21: CSMI Lake Huron survey on Canadian boat
In 2017, we received U.S. EPA GLRI funding to create a DNA Barcode Reference Library for Mollusca, Annelida, and minor phyla. This project is one of three funded by the EPA Great Lake Program Office toward genetic barcoding of aquatic invertebrate species from the Great Lakes. Two additional projects target zooplankton and rotifers (PI M. Pfrender, Notre Dame University, and Cornell University), and benthic arthropods (PI D. Lodge, Cornell University). Barcode sequences for collected specimens are generated by the Centre for Biodiversity Genomics, University of Guelph, Canada. The overall goal of the three collaborative projects is to advance the current state of genetic barcode library for invertebrates in the Great Lakes, which will improve our knowledge of Great Lakes diversity and help in early detection of nonnative and potentially invasive species to this important resource.
From 2017 to 2021, we collected multiple samples from the Great Lakes Region and successfully generated nearly 1,000 individual barcodes for many native and invasive freshwater benthic species of Annelida, Mollusca, and minor phyla (Bryozoa, Cnidaria, Nematomorpha, Nemertea, and Platyhelminthes) that, at the start of this project, had fewer than five barcodes. We generated a publicly available barcode reference library for taxa in the Great Lakes basin and updated a species checklist to be used for early detection and monitoring of invasive species.
A value-added product of this project will be a Great Lakes basin-wide species list for the taxonomic groups targeted in this project.
Image caption: Knut Mehler and Leon Katona (Wright State University) collecting mollusks and annelids from the Genesee River in Rochester, NY, in September 2018.
Using the data and images from the EPA Long-term Biological Monitoring Program, CSMI, and DNA Barcode Reference Library project, we are creating a digital reference guide to the benthic species found in the Great Lakes.
The Great Lakes Center, in collaboration with the U.S. EPA’s Great Lakes Biology Monitoring Program and Office of Research and Development-Great Lakes Toxicology and Ecology Division, has developed a new method for rapid assessment of dreissenid mussel populations in lakes. The method uses a Benthic Imaging System (BIS) to estimate population size of these invaders in near-real time. The BIS consists of Go-Pro cameras and lights mounted to a steel frame that is lowered to the lakebed from a ship. The resulting bottom images are analyzed via imaging software to estimate mussel density and percent coverage. The new method substantially reduces the time required to map distributions of dreissenid mussels across large spatial scales compared to traditional sediment collection methods. This increase in spatial resolution and reporting times of monitoring is especially important considering that the quagga mussel is now the primary regulator of phosphorus cycling in the lower four Great Lakes and their tissues and shells now contain nearly as much phosphorus as the entire water columns of the impacted Great Lakes (Li et. al., 2021). The resulting research paper Rapid assessment of Dreissena population in Lake Erie using underwater videography is published online with @SpringerNature in Hydrobiologia. This method for Dreissena rapid assessment was applied in Lake Michigan in 2021 and will be applied to other Great Lakes in the future as a valuable addition to conventional bottom grab monitoring.
News articles: Great Lakes Center, EPA Collaborate on New Imaging Tool; Great Lakes Restoration: "New method for rapid assessment of quagga and zebra mussel populations"
Over 110 lake-wide benthic surveys were conducted on the Laurentian Great Lakes since 1929. However, these studies often are not readily available, and have never been combined in one dataset to preserve historic data. According to our estimations, primary data for at least 20% of all surveys are incomplete or have already been lost. For over three years, the Great Lakes Center has been conducting inventory of benthic surveys for all Great Lakes to create a database with all the available information on species composition, distribution, density, and biomass of benthic invertebrates. Considering the rarity of long-term benthic studies in lake ecosystems, these data set could be useful to explore effects of different environmental factors and exotic species on community organization, for monitoring of water quality, biodiversity, exotic species introduction, fish food base assessment, and other ecosystem services provided by benthic community. Our first complete dataset on the Lake Ontario benthic community includes taxonomic data to the species level for 11 of the surveys and data to the group level for another two surveys covering the last 54 years, and was submitted as a data paper currently in review in Ecology.
The Western New York Partnership for Regional Invasive Species Management (WNY PRISM) works to address invasive species priorities using a coordinated partnership for which we provide leadership, technical assistance, and opportunities for collaboration. Our goal is to improve, restore, and protect local aquatic and terrestrial resources by improving the effectiveness of invasive species management. This partnership is supported by a NYS DEC Environmental Protection Award through December 2023.
This project is investigating the cues and pre-migratory behavior of round gobies in Lake Ontario and connecting waters. The activity budgets of fish from Lake Ontario (migratory population) and Ellicott Creek (non-migratory population) are being assessed for movement behavior, distances moved, and seasonal activity patterns to discern the influence of habitat context.
Researchers at the GLC are documenting the seasonal population density, size distribution, and nutrient content of round gobies in the nearshore of western Lake Ontario, as well as the lower Niagara River, to understand cues related to their offshore and inshore annual migration. The benthic invader departs the nearshore in later fall, moving off to deeper waters in excess of 100 m over a period of a few weeks, and returns in the spring over a longer period. The project is addressing the contribution of this offshore migration to the offshore nutrient budget by comparing the population density, size distribution, and nutrient mass in the migrating and returning goby population.
This project is a new collaboration with the U.S. Fish and Wildlife Service which began Fall 2019. It will assess all historical records of sturgeon spawning habitat in tributaries to Lake Erie through investigations of NYS Department of Environmental Conservation and library archives. It will revisit those same locations and document any changes in land use condition or in-stream spawning habitats. Ultimately, these activities should allow an update of tributary habitat suitability values for lake sturgeon in the Lake Erie watershed.
News article: Newsletter #17: Moving forward on mapping historic lake sturgeon habitat
We are investigating the possible community-level impacts of a new invasive plant in the region by comparing macroinvertebrates collected from plant stands with varying abundances of stonewort ranging from no stonewort to 100% stonewort coverage. We have selected 5 locations with infestation meeting these criteria for collections. Additionally, since plant detritus is such an important energy source for a wide range of macroinvertebrate consumers, we are investigating the use of stonewort as a food resource by measuring decomposition rates in natural settings.
Photo credit: Kylie Wirebach
News article: Newsletter #17: Starry happenings on Grand Island
Photo gallery: Studying invasive starry stonewort
This project will investigate the strength of direct and indirect interactions between benthic predators and their snail prey, and the resultant influence on detrital processing rates. Round gobies (an invasive benthic fish) and native crayfish are both snail predators, and snails are important in detritus breakdown in wetland habitats. We are using a mesocosm approach to investigate whether a reduction in snail foraging activity (due either to their avoidance of predators or being consumed) translates into slower leaf decomposition.
News article: Newsletter #17: Snails, Gobies, and Green Beans
We are collecting and analyzing samples of aquatic birds and their eggs to determine the prevalence of contaminants in the Niagara River’s wildlife, particularly those that contain halogenated compounds with a tendency to bioaccumulate. We are analyzing for flame retardants (PBDEs), PCBs and the legacy pesticide DDT, which cause impairments in fish and wildlife.
News article: Newsletter #17: Common terns impacted by persistent organic pollutants
In this project, we are testing different approaches to improving the removal of pharmaceuticals and antibiotics from treated wastewater, using toxicological testing of the organisms exposed to the alternative water treatments. The testing includes LC50 and life history experiments in crustaceans (Daphnia) and behavioral and developmental responses of larval fish (fathead minnow, Pimephales promelas). The changes in biological endpoints and metabolic products (metabolomics) in these organisms will determine if additional treatment of effluents would be beneficial for wildlife.
In this project, we are looking into the effect of climate change (increased CO2 levels) and human activities in watersheds (logging, acid rain) on calcium levels in soft water. Many lakes in Canada and around the world are soft water lakes, i.e., they have low buffering capacity. One of the problems with declining calcium levels in these lakes is that aquatic organisms that need calcium for their exoskeletons or shells are not able to obtain it from the water and this deficiency may carry up the food web. We are testing, in an experimental setting, calcification in snails that are raised in a soft water medium resembling natural calcium concentrations and exposed to different levels of atmospheric CO2 and calcium.
Since the summer of 2011, we have deployed an automatic buoy provided by GLOS (Great Lakes Observation System) into Lake Erie. The buoy is maintained and run through the Great Lakes Center as a part of a regionally distributed network of 19 fixed monitoring buoys that are located throughout the five Great Lakes. The buoy is one of six standard GLOS buoys and the only one located in the Eastern basin of Lake Erie.
The GLOS buoy is deployed 5 miles NNW of Dunkirk in 30 meters of water. The buoy is 16 feet in length, 4 feet in diameter and weighs a little over 650lbs. It collects meteorological information including solar radiation, barometric pressure, wind speed and direction, and relative humidity, as well as wave height, direction and period information. The buoy also measures water temperature from the surface to 20m in depth, and dissolved oxygen and conductivity at 20m. Data collected are logged and transmitted via a cellular link back to the Great Lakes Center. The information collected from this buoy and from the whole GLOS system can be used for climate modeling, lake current and energy budget modeling, as well as being useful for the study of nutrient dynamics and fisheries. The system is also useful for commercial and recreational navigation by providing real time information regarding wind and wave conditions.
In the summer of 2012, buoy evidence was used to help explain a fish kill.
During 2019, we had over 19,000 visits to the buoy website, and in 2020, there were over 16,000 visits (reduction due to shortened deployment period as a result of COVID-19).
GLOS buoy website (search for Dunkirk Buoy BSC1)
News article: Newsletter #17: Popular GLOS buoy receives an upgrade
Photo galleries: Great Lakes Observing System (GLOS) buoy
