Numerous studies on non-native freshwater species are published with the snail Potamopyrgus antipodarum expanding and becoming established in Madeira Island; freshwater fishes Perccottus glenii, Pseudorasbora parva and Ameiurus nebulosus are first recorded in the Siverskyi Donets river basin, Lake Bracciano (Central Italy), and the Neman River basin in Belarus, respectively; the ecosystem engineer Arcuatula senhousia (mussel) is first reported for southern Portugal; the non-native crayfish fauna of Israel is reviewed; non-native shrimps before and after an extreme flood in western Japan are surveyed; the status of the non-native mussel Mytella strigata in the upper Gulf of Thailand is updated; and the expansion and establishment of the green porcelain crab in North Carolina (USA) is documented.
First records of the earthworm Amynthas tokioensis in Québec and cyclopoid copepod Thermocyclops crassus in Eastern Canada.
The longhorn beetle Stromatium longicorne is intercepted in South Korea.
The alien plants Aethusa cynapium and Elodea nuttallii are reported for the first time from the Republic of Korea and Türkiye, respectively.
Dysphania cristata and Thalamita oculea are reported for the first time in the Mediterranean basin; new Atlantic records and data on four benthic alien species; the rockfish Sebastes schlegelii is recorded from the Bulgarian Black Sea coast; while Economidichthys pygmaeus is established in Northeastern Greece.
First records of Yoldia limatula and Pterygoplichthys in the United Kingdom.
The non-native anadromous salmonids of the La Plata Basin (Argentina) are reviewed; freshwater-fish parasites Sciadicleithrum iphthimum and Gyrodactylus cichlidarum are identified in India and the Unites States, respectively; and new viruses are detected for the first time infecting Penaeus monodon from the Gulf of Mexico and Northwestern Atlantic Ocean.