Sentences with phrase «sustain salmon runs»

If too much is used by humans, there may not be enough to sustain salmon runs.

Not exact matches

The Alaska Department of Fish and Game carefully manages the Bristol Bay sockeye salmon fishery to ensure that enough fish are allowed to escape the fishery and run up river to sustain the population.

There, the cold water has become essential to sustaining the only wild - spawning population of spring - run Chinook salmon that still survives in California.

In 2014, about 95 percent of the juvenile winter - run Chinook salmon died because drought conditions made the Sacramento River too warm to sustain them.