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The reserve "Magadansky" established surveillance of Steller's sea lions, listed in the Red Book

During the scientific expedition to the Yamskie Islands, scientists of the Far Eastern Branch of the Russian Academy of Sciences and employees of the Magadansky Nature Reserve (Magadan Region) visited the northernmost reproductive breeding ground for sea lions in Russia on Matykil Island. In 2013, 6 automatic autonomous photorecorders were installed at the animal rookery to track them. The photo observation system will allow specialists to monitor the sea lion population in a hard-to-reach area, track the migration of animals, as well as monitor the protected regime on the island, the press service of the Ministry of Natural Resources said.

In 2014, for the first time, data was taken from photographic recorders. According to the deputy director of the nature reserve for science, Irina Utekhina, a preliminary analysis of the photographs showed that sea lions use the rookery on the Yamsky Islands all year round and do not leave it, as previously thought.

After studying the data of photographic registrars, the scientists found out that the animals were absent from the rookery only at the end of February and March. In early April, when the ice around the island began to collapse, the sea lions reappeared on the rookery.

The cameras recorded the birth of the first puppy on the island already on 22 May - these data fit well with the existing theory expressed earlier by Russian and American researchers in 2001, that the birth of puppies in northern rookeries occurs earlier than in the more southern ones. The displacement between the northern and southern rookeries is about 2-x weeks. So, in Kuril Islands, puppies are born in the last days of May or beginning of June.

Project of year-round monitoring of the sea lion population on the island. Matykil is carried out by the Magadansky Nature Reserve and the Kamchatka Branch of the Pacific Institute of Geography of the Far Eastern Branch of the Russian Academy of Sciences with the support of the World Wildlife Fund (WWF).

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