Sweden

There has been no report showing new species in Sweden since January 2017. The round goby Neogobius melanostomusis continuing to expand its range in the Baltic Sea. Pink salmon Oncorhynchus gorbuschhave been abundant in catches at the Swedish west coast in 2017. Pacific oyster Magallana gigas is expanding its distribution southwards. Two new observations of American lobsters Homarus americanus were made in the Skagerrak in 2017. Alien crabs including the Japanese shore crab Hemigrapsus sanguineus and the brush-clawed shore H. takanoi have been frequently reported in Swedish waters during 2017. Other crab spices such as the North American mud crab Rhithropanopeus harrisii and the Chinese mitten crab Eriocheir sinensiswere also observed in Sweden.