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New study on Mysis population trends across the Great Lakes from 1997 – 2019

Scientists recently published a new summary of long-term trends in Mysis populations across the Great Lakes. Mysis diluviana, a small crustacean also known as the opposum shrimp, is an important component of the offshore Great Lakes food web.

October 11, 2023

EPA conducts Great Lakes Sediment Surveillance Program sampling in Lake Superior

Scientists will analyze Lake Superior sediment collected in Sept. 2021 to track spatial and temporal distributions of contaminants in sediment in the lake.

November 19, 2021

USGS and EPA Research Shows High Susceptibility for Methylmercury to Enter Great Lakes Food Web

Study shows that despite low methylmercury concentrations, the susceptibility for methylmercury to enter the Great Lakes food web via phytoplankton is higher than expected.

September 29, 2021

EPA’s Lake Guardian 2021 Summer Water Quality and Biology Survey Underway

From Sept. 3-17, scientists aboard the EPA Research Vessel Lake Guardian will conduct the 2021 EPA Great Lakes Summer Water Quality Monitoring Program and Biology Monitoring Program surveys on Lake Michigan, Lake Huron and Lake Superior.

September 3, 2021