Have you tried Korean salted fish? lol. Jeotgal is also an old food in Korea, and you can see it a lot in Korean markets. There are so many different types of salted seafood in Korea, and there are many foods with salted seafood. Representatively, the kimchi we eat also contains salted seafood!. Usually, when making kimchi, salted shrimp is also added to the seasoning!. lol