ScottBall_SARA_Freshwater-Mussels_San_Antonio_River_Biology_Scientists_1-23-2017-2

San Antonio River Authority Aquatic Biologists (left to right) Chris Vaughn, Shaun Donovan, and Larry Larralde perform specific duties before searching for mussels.

San Antonio River Authority Aquatic Biologists (left to right) Chris Vaughn, Shaun Donovan, and Larry Larralde perform specific duties before searching for mussels.

San Antonio River Authority Aquatic Biologists (left to right) Chris Vaughn, Shaun Donovan, and Larry Larralde perform specific duties before searching for mussels.