Australian blenny may expand southwards with those of several other similarly distributed species as temperatures increase due to climate change. Australian blenny The Australian blenny ("Ecsenius australianus") are small marine blennioid fish of the genus "Ecsenius". They are small and reddish brown with a white ventral side. Australian blennies inhabit the shallow marine waters of the tropics. They are often found along the Great Barrier Reef and Coral Sea of Australia. This species is believed to be most closely related to "E. fourmanoiri". Similarities between these two species include "broad, darkly dusky bands and stripes" and "dark opercular margin[s]", which are not
Round goby Nord-Ostsee (Kiel) Canal. As of 2010, the westernmost site of round goby occurrence in Europe was the Lower River Scheldt, the tidal zone in the river mouth, and Albert Canal, Belgium. In 2011, the round goby began invading the fresh waters of France: the species appeared in the Rhine River (on the border between France and Germany), and in the French part of the Moselle River. In total, 52 parasite species are registered in the round goby in the native area. Most abundant parasites of the Black-Sea round goby are metacercariae of trematodes of Heterophyidae family, such as "Cryptocotyle concavum",