Round Goby

this species is invading our lakes, rivers and streams!!!

Where did this species originate from? Where can it be found?

This specie called the "Round Goby" originated from the black and caspian seas in eastern Europe. It was first found in 1990 in the St.Clair river, north of windsor, ontario.


This species can now be found in ALL FIVE of the great lakes and inland water.

Why is this species a danger to biodiversity?

This species is a threat/danger to biodiversity because they prey on our native fish and fish eggs. If this habit continues then that means our native fish cannot hatch and/or reproduce more fish.

How did this species arrive in Canada?

Researchers think that the Round Goby brought to north america in the ballet water of fright ships traveling from or through Europe.

When did this species first arrive in North America?

The "Round Goby" first arrived in North America in 1990.
Big image

What affect is this invasive species having on other native species?

The affect that this species is having on other native species is that it is drastically decreasing the fish population in North America.

What are governments and organizations doing about this species?

There aren't as many organizations about the cause as there are with other things, as well as the government doesn't think this is as important as other issues. Although it is still very important so the government has done some things to help it such as:

~The ontario government has banned the possession of live Round Gobys and the use of Round Gobys as fish bait.

~The UME scientists are concerned about the spread of Round Gobys, so, they have been working on the use of chemical toxins as a pole.

Description of species

The fish the "Round Goby" looks similar to the "Native Sculpin" and the "Tubenose Goby"

A adult round goby are about 10-25cm in length and have grey, green and brown markings

Interesting Facts

~When the Round Goby is younger than one year old there colour is grey!!!

~The males take care of the eggs!!!

~They do not hav a swim bladder, so, they sink in water!!!

~There can be up to 5000 eggs in ONE nest!!!

For More information

For more information go to

~http://www.invadingspecies.com/invaders/fish/round-goby/

~http://web2.uwindsor.ca/courses/biology/corkum/goby/goby.htm

~http://www.invasivespeciescentre.ca/SiteAssets/Files/Learn/Species/Round_goby.pdf