Hydrographic surveys collected to support fish spawning reef placement, Detroit River, Michigan, June 23-24, 2015
The U.S. Geological Survey conducted hydrographic surveys from June 23-24, 2015 to monitor fish spawning substrate placements (reefs) in the Detroit River, MI. An interferrometric multibeam echosounder was used from the Great Lakes Science Center research vessel Mayfly to collect maps of river bottom topography in …