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Gillian Flaccus | The Associated Press Juvenile coho salmon swim swim in a holding pond at the Cascade Fish Hatchery in Cascade In thisWednesday, March 8, 2017 photo, juvenile coho salmon flop down a chute and into a water tanker truck at the Cascade Fish Ha In this Thursday, March 9, 2017 photo, a sign adorns a water tanker truck holding hundreds of baby coho salmon at it arrived at th In this Thursday, March 9, 2017 photo, hundreds of juvenile coho salmon are released into the Lostine River from a water tanker tr In this Thursday, March 9, 2017 photo, a display shows the different stages of coho salmon eggs at the Cascade Fish Hatchery in Ca In this Thursday, March 9, 2017 photo, a water tanker truck holding hundreds of baby coho salmon arrives at the Lostine River in W In this Thursday, March 9, 2017 photo, a juvenile coho salmon hides in grass along the banks of the Lostine River in Wallowa Count In this Thursday, March 9, 2017 photo, a juvenile coho salmon is held by a fish biologist from the Oregon Department of Fish and W David Bronson, a driver who trucks coho salmon in water tankers for the state of Oregon, prepares to get into a truck filled with