Sometimes Great Lakes science is done in very unusual conditions, like a mayfly hatch on #LakeErie! EPA and University of Minnesota-Duluth co-operate the Great Lakes Sediment Surveillance Program, which monitors the spatial distribution and temporal trends of persistent, bioaccumulative, and/or toxic chemicals in sediments of the Great Lakes. To make the research vessel #LakeGuardian a less attractive destination for the mayflies and keep them from landing in the sediment samples being collected, scientists from University of Minnesota-Duluth and EPA worked under red light. Although a bit of a nuisance, mayfly hatches are also indicators of Lake Erie’s health because mayfly populations provide a valuable food source for fish and birds. Fun fact: Mayfly swarms can appear as rainstorms on Doppler radar!
Even a inverted submersion basin mogul dams or "reverse dry docks" can contain micro plastics and other contaminants
Meredith Laidly could never forget
Parks Services Specialist at Anoka County Parks
1wGood to see mayflies, as strange as they seem. They are a great indicator of clean water. Proud of the Lake Erie community.