Organization profile

Organization profile

The Large Lakes Observatory (LLO) is the only institute in the country dedicated to the study of large lakes throughout the world. We focus on the global implications of our investigations in the areas of aquatic chemistry, circulation dynamics, geochemistry, acoustic remote sensing, plankton dynamics, sedimentology and paleoclimatology. LLO's research ranges from lakes in the East African Rift Valley and Central Asia, to the Great Lakes of North America. Close ties have been formed with institutes in Canada, Uganda, France, Norway, Kyrgyzstan, Kenya, Nicaragua, Malawi, Tanzania and England, as well as with many universities within the United States. At the University of Minnesota, we are part of a major limnological program that includes the Limnological Research Center and the Department of Ecology, Evolution and Behavior on the Twin Cities Campus, and the Center for Water and the Environment in the Natural Resources Research Institute on the Duluth Campus, and the University-wide Water Resource Science program.

Fingerprint Dive into the research topics where Large Lakes Observatory is active. These topic labels come from the works of this organization's members. Together they form a unique fingerprint.

lake Earth & Environmental Sciences
lakes Agriculture & Biology
stoichiometry Earth & Environmental Sciences
phosphorus Earth & Environmental Sciences
algae Agriculture & Biology
Lake Superior Agriculture & Biology
Daphnia Agriculture & Biology
nutrient Earth & Environmental Sciences

Network Recent external collaboration on country level. Dive into details by clicking on the dots.


No photo of Jason A Agnich

Jason A Agnich

Person: Researcher

No photo of Julia C Agnich

Julia C Agnich

Person: Research Support

Photo of Erik T Brown

Erik T Brown

Person: Executive, Administrative, and Managerial


Projects 2005 2023

Research Output 1981 2020

Ecosystem services of Earth's largest freshwater lakes

Sterner, R. W., Keeler, B., Polasky, S., Poudel, R., Rhude, K. & Rogers, M., Feb 2020, In : Ecosystem Services. 41, 101046.

Research output: Contribution to journalArticle

Open Access
Fresh Water
ecosystem service
ecosystem services

Geochemistry and mineralogy of southwestern Lake Superior sediments with an emphasis on phosphorus lability

Tonello, M. S., Hebner, T. S., Sterner, R. W., Brovold, S. L., Tiecher, T., Bortoluzzi, E. C. & Merten, G. H., Jan 1 2019, In : Journal of Soils and Sediments.

Research output: Contribution to journalArticle

lacustrine deposit
2 Citations (Scopus)

Transitions in microbial communities along a 1600 km freshwater trophic gradient

Rozmarynowycz, M. J., Beall, B. F. N., Bullerjahn, G. S., Small, G. E., Sterner, R. W., Brovold, S. S., D'souza, N. A., Watson, S. B. & McKay, R. M. L., Apr 1 2019, In : Journal of Great Lakes Research. 45, 2, p. 263-276 14 p.

Research output: Contribution to journalArticle

Lake Superior
Great Lakes
microbial communities
microbial community
Lake Erie