Sensor Fish 6DOF
"An instrumented package traveling with real fish through hydroelectric dams collects data on the often hazardous conditions that migrating salmon smolt encounter." - Sensor Technology and Design, July - 2004.

Estuary Fish Tag
An acoustic tag that transmits an encoded message surgically implanted into the abdomen of juvenile salmon.

Nodes
An underwater acoustic receiving system that acoustically tracks encoded messages using a variety of data transfer modalities. Systems are located throughout rivers and estuaries in the northwest.