Szczecin Lagoon Szczecin Lagoon Szczecin Lagoon, Stettin Lagoon, Bay of Szczecin, or Stettin Bay (, ), also Oder lagoon (), is a lagoon in the Oder estuary, shared by Germany and Poland. It is separated from the Pomeranian Bay of the Baltic Sea by the islands of Usedom and Wolin. The lagoon is subdivided into the "Kleines Haff" (, "small lagoon") in the West and the "Wielki Zalew" (, "great lagoon") in the East. An ambiguous historical German name was "Frisches Haff", which later exclusively referred to the Vistula Lagoon. From the South, the lagoon is fed by several arms of the
Muthupet Lagoon can be observed well with the exposure of oyster beds and roots during low tide. The tidal fluctuations are playing a major role in dispersing the mangrove seeds. Dense mangroves mostly cover the lagoon shore. The islets are found on western side which are submerged during high tide. The salinity is the major environmental factor, controlling zonation of Muthupet mangrove forest. Avicennia marina is the conqueror of the forest which is found as a single dominant species. Southern side (mud flat) separates the lagoon from adjacent sea that also leaves a permanent mouth of lagoon with seasonally opened shallow waterways.