https://www.popsci.com/story/animals/owls-facts-book-russia/
east sea¸¦ sea of JapanÀ¸·Î Ç¥±âÇÔ.
: The masu have the most constricted range of any Pacific salmon, largely confined to the Sea of Japan, around the island of Sakhalin, and in western Kamchatka.