A decade ago, there was a strange thing along the Alaska coast: thousands of dead marine birds were washing on the beaches, and no one knew the reason. What began as ambiguity quickly turned into a premium chilling example Odubon I mentioned.
What happened?
In 2015, thousands of dead Joint murres (A detailed here by the Cornell Bird Science Laboratory) began to wash along the Alaska coast. Initially, scientists were not worried since deaths occurred once after a decade of sea birds in the Pacific Ocean. But as the bodies continued to appear on the beaches from Alaska to California, and chicken breeding colonies failed, it became clear that this was worth the warning bells.
By 2016, washing an estimated 62,000 Murres washed on the beach.
Now, after 10 years, scientists were published research On this phenomenon, and revealed that the real number was closer to 4 million, Odubon I mentioned. This is nearly half of the Murre population in Alaska went, all because they could not find enough fish to eat.
“We were looking at these numbers, and we thought,” I wait for a moment, this cannot be true, “says Julia Parish, a university expert at Washington University.
The reason was a huge thermal wave of two years called “The Blob”, which heats the ocean water by up to 7 degrees Fahrenheit and was wiped in fish. This is now seen as the largest number of wildlife that has ever recorded.
“It was a bowel punch to realize how worse than we expected,” said Heather Renner, a biologist in the supervisory wildlife of the wildlife shelter in Alaska and the co -author of the study.
Why is this anxiety?
The unprecedented death of MURES shared is a significant warning sign about the accelerated effects of climate change. Marine heat waves often occur and get worse, threatening the entire species and disrupting marine ecosystems.
When the oceans are heated like this, they not only kill the sources of food, but also make it difficult to wear wildlife. Ten years later, Murre’s population in Alaska is still struggling, which indicates deeper transformations, and perhaps irreversible in the ocean health – which affects everything from fish stocks to coastal societies that depend on them.
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The fact that Murres did not recover, even after all this time, Parrish called a “dual shock”, “
What can be done to help marine birds?
Treating the radical cause-climate change-is necessary to prevent further death. Supporting policies that cut carbon pollution and increase clean energy can slow down the ocean warming. Conservation efforts, such as monitoring and restoration of marine birds, are vital to tracking these changes and finding solutions.
At the local level, protecting marine habitats and establishing non -fishing areas can give marine aircraft groups a better opportunity to recover. Daily procedures such as Reducing the use of plastic Support sustainable seafood options can also make a difference.
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After discovering the cause of the huge animals, the researchers were amazed: “The bowel punch” was first appeared in the cold.