How many species of fish live in Maryland's freshwater streams?
Historically, about 100 species of freshwater fish were known to occur in Maryland. The statewide Maryland Biological Stream Survey, conducted by the Maryland Department of Natural Resources since 1994, has collected 85 species.
The five most abundant species are eastern blacknose dace, eastern mudminnow, Blue Ridge sculpin, bluntnose minnow and creek chub. Bluegill and pumpkinseed are the most widely distributed freshwater fish.
Resident stream species with total numbers of less than 5,000 are stonecat, ironcolor shiner,...
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