Sea Lion decline in Russia

There was a recent report in the Moscow Times about the decline of sea lions in the  east part of Russia.

But this summer, the number of new pups born at the rookeries was the lowest in more than 20 years of continuous observation, the statement said.  By the end of the sea lions’ reproductive season in early July, only 163 pups were born on the main colony in a southeastern part of the Commander Islands,  In the 1960s, the number of sea lions around the world reached between 250,000 and 300,000, according to the U.S. National Park Service. However, only about 39,500 sea lions of the endangered western stock remain, according to the most recent data published in 2006, the park service said.

As is often the case, There is no clear explanation for the decline. Loss of fertility has been attributed to radiation in general, but not in this particular case.  This may be part of the story about loss of sea life in the Pacific Ocean.


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