SAN FRANCISCO — Baby salmon are dying by the thousands in one California river, and an entire run of endangered salmon could be wiped out in another....
Now, state wildlife officials say that number could be higher amid a rapidly depleting pool of cool water in Lake Shasta....
To ensure their survival, the U.S. government is required to maintain river temperatures below 56 degrees Fahrenheit( 13 Celsius) in spawning habitat because salmon eggs generally can’t withstand anything warmer. The war
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芝加哥论坛报-国家与世界
2021-07-29 00:00:00.0