As temperatures near and surpass triple digits, many reservoirs in California's Central Valley have diverted more water to cities and farmers during the drought, making rivers shallower and too hot for the fish to develop from eggs, a process which can take at least 60 days to complete. To combat the poor river conditions in the Central Valley, some fish preservation organizations have tried to save the salmon population by launching large scale trucking operations to transport millions of salmon to the San Pablo Bay, San Francisco Bay and other fish farms where they are more likely to survive.

On the Yukon River, subsistence salmon fishing is being closed to protect king salmon as they migrate upriver.

This year is shaping up to be the worst for sockeye salmon in the Fraser River since tracking began in 1893, according to the Pacific Salmon Commission.

A group advocating for the conservation of wild Atlantic salmon says the number of adult salmon returning to North America rivers fell to near historic lows last year.

With some of this year's salmon runs projected to be the lowest on record, West Coast salmon fishermen are demanding disaster relief from the federal and provincial governments.

Commercial salmon fisheries in Washington, Oregon, and California are eligible for a portion of $20 million in disaster assistance after federal officials determined fishery failures occurred.

Salmon used to be infrequent visitors to the Mackenzie River and communities of the Arctic, but more species have begun to show up in the North more often and in greater numbers than ever before.