Figure 1
From: Freshwater unionid mussels threatened by predation of Round Goby (Neogobius melanostomus)
The Allegheny and Monongahela River Basins (49,585 km2) of the states of New York, Pennsylvania, West Virginia, and Maryland, USA. The invasive Round Goby has recently been introduced to the headwaters of this basin within the French Creek watershed. Figure adapted from USGS, with north direction facing upward 21.
