First record of Mnemiopsis leidyi A. Agassiz, 1865 in the Gulf of Gdansk (southern Baltic Sea)
Janas, U.; Zgrundo, A. (2007). First record of Mnemiopsis leidyi A. Agassiz, 1865 in the Gulf of Gdansk (southern Baltic Sea). Aquat. Invasions 2(4): 450-454
We report the discovery of Mnemiopsis leidyi A. Agassiz, 1865 in the Gulf of Gdańsk (southern Baltic Sea, Poland) in October 2007. During the first month of observations the species was found in many areas of the Gulf of Gdańsk, from the surface to a depth of 42 m. The length of individual M. leidyi varied from 1.8 to 8.0 cm.
