Country | Locality | Introduced | Year | Qualitative Value | Ref. |
---|---|---|---|---|---|
Germany | Kadet Channel and Darss Sill | 2002 - 2012 | very common | 96045 | |
Sweden | Persö, Askö Archipelago, Baltic Proper | 2003 - 2003 | extremely abundant | 95728 | |
Germany | Pomeranian Bight with Adlerground | 2002 - 2012 | extremely abundant | 96045 |