Thornbury Fishway, Thornbury, Ontario, Canada A Chinook Salmon passes over the control gate and into the exit area of the fishway

Thornbury Fishway, Thornbury, Ontario, Canada Rapid and timely Chinook Salmon passage at the fishway exit

Thornbury Fishway, Thornbury, Ontario, Canada Chinook Salmon passage and resting at the fishway exit

Thornbury Fishway, Thornbury, Ontario, Canada Successful upstream passage by a Chinook Salmon while another lingers at the fishway exit

Thornbury Fishway, Thornbury, Ontario, Canada Chinook Salmon passage and lingering at the fishway exit

Thornbury Fishway, Thornbury, Ontario, Canada A Chinook Salmon demonstrates typical behaviour in the fishway – ascend and then rest at the fishway exit

A skinny Chinook Salmon ascends while another drops back at the Thornbury fishway exit

Thornbury Fishway, Thornbury, Ontario, Canada Chinook Salmon lingering and dropping back at the fishway exit