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Sivash - Lagoon
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Sivash

description Sivash Overview

The Sivash, also known as the Syvash or the "Putrid Sea," is a vast system of shallow, hypersaline lagoons located along the northern coast of the Crimean Peninsula. Covering an area of approximately 2,500 square kilometers, it separates Crimea from the mainland, connecting to the Sea of Azov. Its extreme salinity and shallow depth create conditions where summer heat causes algae blooms and the emission of hydrogen sulfide, resulting in its characteristic foul odor. The area is a designated Ramsar wetland that supports diverse migratory bird populations and has historically been utilized for commercial salt and mineral extraction.

help Sivash FAQ

Why is the Sivash called the Putrid Sea?

The nickname refers to unpleasant odors produced when organic material decomposes in its shallow, hypersaline waters. The Sivash is also known as Syvash.

How large is the Sivash lagoon system?

The Sivash covers approximately 2,500 square kilometers. It is a broad system of shallow lagoons rather than one deep, uniform lake.

Where is the Sivash located?

It lies along the northern coast of the Crimean Peninsula. The lagoon system separates Crimea from the mainland and connects toward the Sea of Azov.

Why is the Sivash so hypersaline?

Its shallow basins, limited water exchange, and strong evaporation concentrate dissolved salts. Those conditions create a hypersaline environment that differs sharply from ordinary coastal lagoons.

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