Is the Caspian Sea salty like the ocean?
Posted on Aug 26, 2025 / Travel
Yeah, but not as salty as the ocean. The Caspian is kind of in-between fresh and salt water—it’s called “brackish.” Its saltiness changes depending on where you are: in the north it’s almost fresh, while in the south it’s much saltier. This weird mix makes it possible for both freshwater and salt-tolerant species to survive. That’s why sturgeons thrive here but you’ll also find fish you’d expect in rivers and lakes. It’s like a natural experiment in water chemistry.
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