The Round Goby

Invasive species in Canada

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Researchers belive the fish were brought to North America in 1990 in the st. Clair river North America in the ballast water of ships from Europe.


The Round Goby is a small bottom dewelling fish that can reach 10 inches long and they are invasive species. And there know for stealing bait off fishing line.


They feed on insects and other organisms. Adults feed on zebra and quagga mussels.


Native to the black and Caspian seas in Eastern Europe now found in North America

since 1990.


In North America since 1990.


Round Goby have reduced populations of sport fish by eating there eggs and young and competing for food sources.

Impact of Round Goby

The Round Goby aggressive habitats and rapid spread have had serious impacts on native species.

what makes the Round Goby a invasive specie?

The Round Goby have destroyed and disrupted aquatic communities across the nation. The entry of anther foreign invader to the grate lakes environment is an unwelcome addition to the plethora of other problems including habitat destruction,overfishing,pollution,and loss of native species.

more about The Round Goby

The Round Goby was accidentally introduced into the North American Great Lakes by way of ballast water transfer in cargo ships. The Round Goby is considered an invasive species with significant ecological and economic impact. As of 2010, the westernmost site of the Round Goby occurrence in Europe is the Lower River Scheldt. In 2011, the expansion of the Round Goby through the fresh waters of France started: this species occurred in the Rhine River.

Potential for Control

Once an invasive species becomes as wildspread and abundant as the round goby has become in the Great Lakes no possibility of complete eradication exists. The Goby has become a permeant fixture in the Great Lakes food web, but researchers have taken some preliminary steps towords control measures appropriate for localized populations.
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