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Hydrographic surveys collected to monitor fish spawning reef placements, Detroit and St. Clair Rivers, Michigan, July 23-25, 2018


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Kinzel, P.J., Nelson, J.M., Kennedy, G.W., Fischer, J.L., and Bennion, D., 2019, Hydrographic surveys collected to monitor fish spawning reef placements, Detroit and St. Clair Rivers, Michigan, July 23-25, 2018: U.S. Geological Survey data release,


The U.S Geological Survey conducted hydrographic surveys from July 23-25, 2018 to monitor fish spawning substrate placements (reefs) in the Detroit and St. Clair Rivers, Michigan. A multibeam echosounder was used from the Great Lakes Science Center research vessel Cisco to collect hydrographic data. These data were used to generate maps of river bottom topography in locations where spawning substrates have been placed. Reefs that had been constructed at the time of survey in the Detroit River included: Fighting Island, Fort Wayne, New (East) Belle Isle, Belle Isle, and Grassy Island. The reefs constructed in the St. Clair River at the time of survey included: Middle Channel, Pointe aux Chenes, and Harts Light.


Point of Contact :
Paul J Kinzel
Originator :
Paul J Kinzel
Metadata Contact :
Paul J Kinzel
Publisher :
U.S. Geological Survey
Data Owner :
National Research Program
USGS Mission Area :
Water Resources
SDC Data Owner :
Office of the Associate Director for Water
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

Click on title to download individual files attached to this item.

“Image of Middle Channel reef and river bed elevation”
thumbnail 61.4 KB
“Hydrographic survey near the Fighting Island reef”
1.3 MB
“Hydrographic survey near the Fort Wayne reef”
2.08 MB
“Hydrographic survey near the Grassy Island reef”
2.63 MB
“Hydrographic survey near the Harts Light reef”
2.1 MB
“Hydrographic survey near the Middle Channel reef”
1.55 MB
“Hydrographic survey near the New Belle Isle reef”
5.57 MB
“Hydrographic survey near the Pointe aux Chenes reef”
2.22 MB
“Hydrographic survey near the Belle Isle reef”
1.75 MB

Material Request Instructions

For any questions regarding these data, please contact:

Paul Kinzel, 303-278-7941
United States Geological Survey
Geomorphology and Sediment Transport Laboratory
4620 Technology Drive, Suite 400
Golden, CO 80403


The Detroit and St. Clair Rivers provide habitat to a number of fish species including walleye (Sander vitreus), lake white-fish (Coregonus clupeaformis), and lake sturgeon. These fish rely upon clean rock-rubble on the river bottom for spawning. The availability of rocky spawning habitat in these rivers has been significantly reduced by the dredging of shipping channels. Therefore, increasing the availability of rock-rubble spawning habitat, through the placement of artificial substrate (reefs), is one strategy that has been adopted by stakeholders to increase fish populations.These habitat enhancements represent a significant investment in planning, permitting and construction. Where river processes deposit sediment and cover the substrate, its value as fish spawning habitat can be diminished. Therefore, it is crucial in the site selection process that substrate be placed in locations that benefit the fish species of concern and, to the extent possible, ensure its longevity and ecological function. Potential changes in river bed elevation in these locations due to infilling by bedload sediment could be determined through serial hydrographic surveys.


Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Image of Middle Channel reef and river bed elevation
Image of Middle Channel reef and river bed elevation


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Additional Information


Type Scheme Key
DOI doi:10.5066/P9ZIVEHX

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