Alarming Decline in Sockeye Salmon: Every year, millions of adult salmon return from the ocean to their home streams, where they lay eggs and produce the next generation of fish. But far fewer sockeye salmon are making it back to their freshwater mating grounds compared to a few decades ago, and that’s seriously affecting population sizes of the species throughout the Northwest, from Alaska to Washington State.
The discovery suggests that changing ocean conditions may be making life harder for some groups of wild salmon -- possibly by reducing their food supply or increasing populations of predators.
