摘要：The Ponto-Caspian fish species, tubenose goby Protherorhinus marmoratus, was recorded for the first time in Poland. Six specimens were captured during April 2008 from rip-rap habitat where the river enters of Włocławski Reservoir, which is situated in the lower section of the Vistula River (Baltic basin). This appears to be the next stage in the species’ westward invasion through the so-called ‘central invasion corridor’ for Ponto-Caspian species. The tubenose goby is, therefore, the fourth alien goby in recent decades to disperse into Polish inland waters, following after the round goby Neogobius melanostomus, the racer goby Neogobius gymnotrachelus and the monkey goby Neogobius fluviatilis.
