D. Jude

3D-Model representation

“Round Goby” (Neogobius melanostomus)

The goby, Neogobius melanostomus, is a bottom dwelling fish with a large head, resembling a tadpole, which can grow to be 250 mm (10 inches). First discovered in Lake St. Clair in 1990, presumably introduced via ballast water from transoceanic vessels, the round goby and the tubenose goby have spread to lakes Erie, Michigan and Superior and to many rivers including the Mississippi watershed. Round gobies are thriving in the Great Lakes Basin because they are aggressive, voracious feeders which can forage in total darkness. The round goby takes over prime spawning sites traditionally used by native species, competing with native fish for habitat and changing the balance of the ecosystem.

For More Information Visit:
U.S. Geological Survey | Round Goby Distribution Map
Keywords: Round_goby

Source: “Round Gobies Invade North America” 1995. Great Lakes Sea Grant Network
Slide: Jude, D. “Round Goby in Fish Tank” CGLAS (on NIS site)