engleski

Has the racer goby Babka gymnotrachelus (Kessler, 1857) failed to invade the Danube tributaries, the Sava and Drava Rivers?

During recent years of intensive research, monitoring and inventory programmes in Croatian large inland waters, 19 specimens of racer goby Babka gymnotrachelus were collected at six locations in 2016, and of these, 18 were juveniles. This confirms the establishment of a self-sustaining population in the main channel of the Danube River in Croatia. However, no progress of this species in the tributaries of the Drava and Sava Rivers has been observed. This reveals that future research should be focused on tributaries, channels and backwaters to confirm their localization only to the Danube River in Croatia.

Gobiidae, alien species, Danube River Basin, distribution, habitat

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