Eastern Drainages
The distribution includes Atlantic-slope waters and selected interior systems, including the upper New and Monongahela regions. A tributary name helps place records among these different basins. The common name should not be used to assign every small catfish from an eastern stream.
Current and Cover
Adults occupy rocky riffles and runs in clear fast creeks and rivers. They seek shelter during the day before becoming active at night. Time of observation explains why a fish may appear hidden beneath cover in one survey and moving openly in another.
Eggs and Size
Eggs are deposited in masses and guarded by males. The compiled maximum is fifteen centimeters total length. A very small common-size entry should not be treated as the size of all adults, especially when sampling may include younger fish.
Keep the Time of Day
Daytime shelter and nighttime activity are different parts of Margined Madtom behavior. Record the observation time alongside habitat.
All Lakes With Margined Madtom
Browse lakes and reservoirs with documented Margined Madtom records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.
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- Clark Lake Gogebic, MI
