Endangered Snake River sockeye salmon are regaining the fitness of their wild ancestors, with naturally spawned juvenile sockeye migrating to the ocean and returning as adults at a much higher rate than others released from hatcheries.
NWFSC scientists Eric Ward and Elizabeth Holmes, along with Ken Balcomb of the Center for Whale Research, have found a correlation between the abundance of Chinook salmon and the fecundity (reproductive success) of killer whales.
